JP6802127B2 - Fluctuation handling processing device, fluctuation suppression method and computer program - Google Patents

Description

The present invention relates to a fluctuation handling processing device, a fluctuation suppressing method, and a computer program.

A communication system including a communication device includes, for example, a PON (Passive Optical Network) system. The PON system consists of a subscriber line terminating unit (ONU: Optical Network Unit), which is a communication device installed in a customer's house, and a subscriber line terminal unit (OLT: Optical), which is a communication device installed in a station building. It is equipped with a Line Terminal) and an optical distribution network (ODN). The ODN may connect a plurality of ONUs and a plurality of OLTs.

In a communication device, a function that is less dependent on at least one of the device's conforming standard, generation, method, system, device type, and manufacturing vendor is made into a component, and an application programming interface (API) for that function is included. By clarifying at least a part of the output interface (IF) and enhancing versatility, portability, and expandability, devices with different compliance standards, generations, methods, systems, device types, and manufacturing vendors FASA (Flexible Access System Architecture), which can be easily shared and added with unique functions, is known (see, for example, Non-Patent Documents 1 and 2).

In FASA, the communication device may have any of the configurations shown in FIG. Here, the configuration of the communication device (for example, OLT) on the side that gives the transmission permission instruction (GATE) is shown in FIG. FIG. 11 (A) is a normal configuration using a MAC (Media Access Control) Chip, and FIGS. 11 (B) and 11 (C) are configurations shown in Non-Patent Document 1 and the like. Here, the component 400 is a component having an arithmetic processing function, and the component 401 is a component having a function of transmitting a frame. Specifically, the component 400 includes a CPU (Central Processing Unit), an NPU (Network Processing Unit), a server, and the like, and the component 401 includes a MAC Chip, an external module, a NIC (Network Interface Card), and the like. Although FIG. 11 shows an example in which the software component calculates the calculation via the component 401 and the interface 402, the interface 402 may not be provided, or the software component equivalent may be built in the component 401.

"Welcome to the FASA homepage", [online], NTT Access Service Laboratory, [Search on February 8, 2017], Internet <URL: http://www.ansl.ntt.co.jp/j/FASA/ index.html> Yoshino et al., "Efforts of New Access System Architecture (FASA) to realize flexible and prompt service provision", NTT Technical Journal, p.15-18, 2016-08 M. Tadokoro et al., “Design of softwarized EPON OLT and its transmission jitter suppression techniques over MPCP”, OFC2017, 2017.

However, in the configuration of FIG. 11, the difference between the actual transmission time of the transmission permission instruction (GATE) and the OLT time described in GATE may fluctuate. In this case, especially in the PON of the IEEE (Institute of Electrical and Electronics Engineers) standard, the ONU time shift that sets the OLT time described in GATE to itself occurs. Due to the time difference of the ONU, the transmission time specified by the OLT and the actual transmission time of the ONU are different from each other, and a propagation delay time RTT (Round Trip Time) measurement error occurs. Occurs.

The RTT measurement error and the fluctuation of the transmission instruction sometimes cancel each other out, but sometimes they strengthen each other. Assuming that they will strengthen each other, it is desirable to suppress the fluctuation to ± 64 nanoseconds or less in order to suppress the link breakage to ± 8 TQ (Time Quanta) (= ± 128 nanoseconds) or less according to the IEEE standard. First, it is assumed that the timing of the instruction of the component 400 in FIG. 11 fluctuates. In the case of the configuration shown in FIG. 11A, if the timing of instructing the setting fluctuates, the timing of changing the setting shifts. By shifting the timing of setting change, the allocation will be different from the allocation assumed for the component 400. In particular, if the allocation to a flow having low resistance to time fluctuations increases or decreases at a timing different from the schedule, as a result, the bandwidth becomes unavailable for that flow, so that an upstream transmission frame collision effectively occurs. In the case of the configuration shown in FIG. 11B, the instruction from the component 400 side fluctuates with time, for example, if the instruction is shifted backward at the front opportunity and forward at the rear opportunity, both allocations interfere with each other and the frame The loss of transmission time effectively causes uplink transmission frame collisions. In the case of the configuration shown in FIG. 11C, the above-mentioned collision between uplink transmission frames occurs. When the GATE of the component 401 fluctuates, it is as described above.

It is a figure which shows an example of the cause which a fluctuation occurs. In FIG. 12 (A), the declaration is passed via the respective memories of the NIC, the Host OS (Operating System), the VM (Virtual Machine) OS, and the application, and the application calculates the allocated bandwidth and the transmission time to calculate the calculation. This is an example in which the result is permitted to be transmitted after passing through the memory of the application, VM OS, Host OS, and NIC. FIG. 12B is an example in which a core is exclusively allocated for NIC monitoring and bandwidth calculation, calculation is performed by the application while it is placed in the memory of the NIC, and the calculation result is permitted to be transmitted. Fluctuations in FIG. 12 (A) are the time required to notify the Host of the arrival of the declaration and interrupt the CPU of the Host, memory contention during memory copying, and interrupts, paging, and transmission to the CPU performing related processing. It is assumed that it is due to the conflict between the permission and the downlink data. It is assumed that the fluctuation in FIG. 12B is due to the waiting time from the arrival of the declaration to Polling and the conflict with the downlink data. Here, memory contention was ignored.

Conventionally, in order to suppress the influence of link breakage due to the above-mentioned fluctuation, M-DBA (Margined-DBA) that extends the guard time by fluctuation, the allocated bandwidth from the server to multiple ONUs is transmitted in one frame, and an external module BG-DBA (Bundled gate massage DBA) has been proposed to suppress the fluctuation between ONUs within the transmission instruction opportunity, although the fluctuation remains between the transmission instruction opportunities by calculating or retyping the transmission time for each ONU.
However, in any of the above methods, fluctuations during calculation and output by the arithmetic unit are not taken into consideration, and the influence of link breakage and the like due to fluctuations during calculation and output by the arithmetic unit can be suppressed. There was a problem that it could not be done.

In view of the above circumstances, an object of the present invention is to provide a technique capable of suppressing the influence of link breakage and the like due to fluctuations.

One aspect of the present invention transmits at least a first component having a calculation processing function for calculating a band allocation or a transmission permission time specified by a transmission permission instruction, and the transmission permission instruction based on the calculation of the first component. Fluctuation response processing that suppresses fluctuations in either or both of the first component and the second component when fluctuations occur with a second component having a transmission function. The fluctuation handling processing unit comprises, as processing for suppressing the fluctuation, synchronization of the allocation cycle and the polling cycle, transmission of the transmission permission instruction after a lapse of a predetermined time obtained based on the statistical value of the fluctuation, and the said. It is a fluctuation-responsive processing device that performs at least one process of priority transmission of a transmission permission instruction.
One aspect of the present invention includes at least the time included in the transmission permission instruction based on the calculation of the first component having an arithmetic processing function for calculating the band allocation or the transmission permission time specified by the transmission permission instruction, and the first component. If there is a fluctuation in the difference from the transmission time of the second component having the transmission function for transmitting the transmission permission instruction based on the calculation of , either or both of the first component and the second component. A fluctuation-corresponding processing unit that performs a fluctuation-suppressing process is provided , and the fluctuation-corresponding processing unit is obtained as a process of suppressing the fluctuation based on synchronization of an allocation cycle and a polling cycle and statistical values of fluctuations. It is a fluctuation-responsive processing device that performs at least one of transmission of a transmission permission instruction and priority transmission of a transmission permission instruction after a lapse of a predetermined time .
One aspect of the present invention includes a fluctuation determination unit that determines a component in which fluctuations are occurring, and a calculation processing function that calculates at least the band allocation or transmission permission time specified by the transmission permission instruction in the fluctuation determination unit. When it is determined that a fluctuation has occurred between the first component and the second component having a transmission function for transmitting the transmission permission instruction based on the calculation of the first component, the first component is used. A fluctuation-corresponding processing apparatus including a fluctuation-corresponding processing unit that performs a fluctuation-suppressing process on a component or any or both of the second components.
One aspect of the present invention includes a fluctuation determination unit that determines a component in which fluctuations are occurring, and a calculation processing function that calculates at least a band allocation or a transmission permission time specified by a transmission permission instruction in the fluctuation determination unit. Fluctuations occur in the difference between the time included in the transmission permission instruction based on the calculation of the first component and the transmission time of the second component having the transmission function for transmitting the transmission permission instruction based on the calculation of the first component. It is a fluctuation-corresponding processing apparatus including a fluctuation-corresponding processing unit that performs a process of suppressing fluctuations on either or both of the first component and the second component when it is determined that the first component or the second component has ..
One aspect of the present invention is the fluctuation handling processing device, and the fluctuation determination unit causes fluctuations in the first component when any of interruption, paging, and memory conflict occurs. When it is determined that the data is being used, and when either the polling wait or the contention with the downlink data occurs, it is determined that the second component is fluctuating, and an interrupt wait occurs. It is determined that fluctuations occur in both the first component and the second component.

One aspect of the present invention transmits at least a first component having a calculation processing function for calculating a band allocation or a transmission permission time specified by a transmission permission instruction, and the transmission permission instruction based on the calculation of the first component. Fluctuation countermeasure processing that suppresses fluctuations in either or both of the first component and the second component when fluctuations occur between the second component having a transmission function. In the fluctuation handling processing step, as processing for suppressing the fluctuation, synchronization of the allocation cycle and the polling cycle, transmission of the transmission permission instruction after a lapse of a predetermined time obtained based on the statistical value of the fluctuation, and This is a fluctuation suppression method for performing at least one process of priority transmission of the transmission permission instruction.
One aspect of the present invention includes at least the time included in the transmission permission instruction based on the calculation of the first component having an arithmetic processing function for calculating the band allocation or the transmission permission time specified by the transmission permission instruction, and the first component. If there is a fluctuation in the difference from the transmission time of the second component having the transmission function for transmitting the transmission permission instruction based on the calculation of , either or both of the first component and the second component. It has a fluctuation response processing step that performs a process of suppressing fluctuations, and in the fluctuation response processing step, as a process of suppressing fluctuations, the allocation cycle and the polling cycle are synchronized, and the fluctuation is obtained based on the statistical value of the fluctuation. This is a fluctuation suppression method in which at least one of the transmission of the transmission permission instruction and the priority transmission of the transmission permission instruction is performed after the elapse of a predetermined time .
One aspect of the present invention includes a fluctuation determination step for determining a component in which fluctuations are occurring, and a calculation processing function for calculating at least the band allocation or transmission permission time specified by a transmission permission instruction in the fluctuation determination step. When it is determined that a fluctuation has occurred between the first component and the second component having a transmission function for transmitting the transmission permission instruction based on the calculation of the first component, the first component is described. It is a fluctuation suppressing method including a fluctuation corresponding processing step which performs a processing which suppresses a fluctuation with respect to a component and / or both of the 2nd component.
One aspect of the present invention includes a fluctuation determination step for determining a component in which fluctuations are occurring, and a calculation processing function for calculating at least the band allocation or transmission permission time specified by a transmission permission instruction in the fluctuation determination step. Fluctuations occur in the difference between the time included in the transmission permission instruction based on the calculation of the first component and the transmission time of the second component having the transmission function for transmitting the transmission permission instruction based on the calculation of the first component. It is a fluctuation suppressing method including a fluctuation corresponding processing step for performing a processing for suppressing fluctuation of either or both of the first component and the second component when it is determined that the component is performing.

One aspect of the present invention is a computer program for operating a computer as the above-mentioned fluctuation-responsive processing device .

According to the present invention, it is possible to suppress the influence of link breakage and the like due to fluctuations.

It is a figure which shows the configuration example of the communication device 1 in an embodiment. It is a figure which shows the comparison result of this invention and the prior art. It is a figure which shows the 1st example of the architecture of a communication device. It is a figure which shows another example of the architecture of a communication device. It is a figure which shows another example of the architecture of a communication device. It is a figure which shows the example of the structure of the virtual communication device or the communication system which consists of a group of parts or devices. It is a figure which shows the example of the structure of an optical access system. It is a figure which shows the main function of an access system, and the specific example of the target of making a FASA application. It is a figure which shows the main function of an access system, and the specific example of the target of making a FASA application. It is a figure which shows the flow of the signal / information between the functional part in a communication device. It is a figure which shows the configuration example of the communication apparatus in FASA in the prior art. It is a figure which shows an example of the cause which a fluctuation occurs.

Embodiments of the present invention will be described in detail with reference to the drawings.

FIG. 1 is a diagram showing a configuration example of the communication device 1 of the present embodiment. In FIG. 1, only the functional blocks related to the present embodiment are extracted and shown. The communication device 1 includes a component 400, a component 401, and a fluctuation handling processing unit 102. The component 400, the component 401, and the fluctuation handling processing unit 102 are software components such as a FASA platform, a FASA application, and external components. Although the configuration of FIG. 11A will be described as an example in FIG. 1, the configuration of FIGS. 11B and 11C can also be applied by providing the fluctuation handling processing unit 102.

The component 400 is a component having an arithmetic processing function such as a CPU, an NPU, and a server. The component 401 is a component having a function related to frame transmission such as a MAC Chip, an external module, and a NIC.

The fluctuation handling processing unit 102 performs a process of suppressing fluctuations in either or both of the parts 400 and the parts 401 in which the fluctuations occur. For example, when the fluctuation is generated only in the component 400 (the component having the arithmetic processing function of the CPU, NPU, server, etc.), the fluctuation handling processing unit 102 has a component 401 (MAC Chip or external module) with respect to the component 400. If fluctuations occur only in parts (parts that have a function related to frame transmission such as NIC) or NIC), parts 401 will be affected. If fluctuations occur in both parts 400 and 401, mainly parts 401. Is processed by any of the following (1) to (3) or a combination thereof. When fluctuations occur in both the component 400 and the component 401, and the deviation between the component 400 and the component 401 is equal to or greater than the threshold value, the following (1) to the component 400 are added to the component 401. Process any one of (3) or a combination thereof.

(1): Transmission permission instruction (GATE) issuance (1) is mainly after a predetermined time elapses, such as adding a variance obtained by multiplying the fluctuation statistical value, for example, the maximum fluctuation or the average value of the fluctuation by a coefficient that is an acceptable probability. This is a method for dealing with fluctuations caused by interrupts, interrupt waits, and memory conflicts shown in FIG.
The fluctuation handling processing unit 102 uses a PFC (Priority Flow Control, IEEE802.1Qbb Priority-based Flow Control, etc.) that can flexibly control the flow for each type of communication or frame, and gives a transmission permission instruction (GATE) until a predetermined time. To hold. For example, by transmitting the PAUSE frame to the priority corresponding to the transmission permission instruction, transmission is selectively suppressed, and after a predetermined time elapses, the fluctuation response processing unit 102 causes the component 401 to transmit the transmission permission instruction (GATE). .. If the suppression duration is 64 bytes of PFC, it can be suppressed to a fluctuation of 8 TQ or less if it is 10 Gbit / s.
The fluctuation handling processing unit 102 transmits the transmission permission by the shaper (BT (Burst Tolerance, burst tolerance value) for one frame if the transmission permission instruction is evenly spaced, and collectively transmits a plurality of transmission permission instructions if they are transmitted together. Time to perform multiple frames (in the case of batch transmission, it is desirable to be a shaper that suppresses transmission until the corresponding number of tokens are accumulated and then transmits them collectively) or sends a transmission permission instruction Toggle shaper settings to send to.
The fluctuation handling processing unit 102 causes the component 401 to transmit a transmission permission instruction (GATE) synchronized with a transmission cycle using isochronous real-time of PROFINE, an EtherNet / IP Implicit message (cyclic) communication function, or the like. Here, select one that allows jitter for each communication cycle. When the value is ± 128 nanoseconds or less, the fluctuation response processing unit 102 selects IRT (Isochronous Real-time) PROFINE with a jitter of ± 50 nanoseconds, and if ± 1 microsecond is sufficient, Select RT (Real-time) PROFINE, etc.

(2): Priority transmission of transmission permission instruction (GATE) (2) is a method mainly for dealing with fluctuations caused by conflict with downlink data shown in FIG.
-If there is a conflict between the transmission permission instruction and the downlink data, the fluctuation handling processing unit 102 performs SPQ (Strict Priority Queuing) in which the transmission permission instruction is given high priority and the downlink data is given low priority. -The fluctuation handling processing unit 102 suppresses selective transmission of downlink data using PFC or the like. The fluctuation handling processing unit 102 selects the downlink data from the time before the time required to transmit the frame of the expected frame length of the downlink data so that the downlink data is not transmitted at the time when the transmission permission instruction is transmitted. Suppress transmission. This is the expected frame length of the low priority frame, which usually occurs because the high priority frame cannot be transmitted during the transmission of the low priority frame, even if the SPQ has full priority between the transmission permission instruction and the downlink data. For example, it has the effect of suppressing fluctuations in the time required to transmit the maximum frame length. -The fluctuation handling processing unit 102 secures the transmission time of the transmission permission instruction (GATE) by the transmission reservation or the like.
-The fluctuation handling processing unit 102 interrupts the downlink data and causes the component 401 to transmit a transmission permission instruction (GATE). The component 401 starts transmitting the transmission permission instruction even during the transmission of downlink data. The downlink data whose transmission has been interrupted may be discarded or resent, and the missing data for the transmission permission instruction may be encoded with correctable forward error correction, corrected and restored. May be good.
The fluctuation handling processing unit 102 transmits the expected frame length of a lower priority frame than the transmission time of the transmission permission instruction, for example, the maximum frame length, in order to suppress fluctuations in the transmission waiting of the transmission permission instruction during downlink data transmission. At the time before the time required for, the token of the shaper of the downlink data which is a low priority frame is exhausted or the shaper setting is switched so that the transmission cannot be performed.
The fluctuation handling processing unit 102 causes the component 401 to transmit a transmission permission instruction (GATE) synchronized with the transmission cycle.

(3): Synchronization between the allocation cycle and the Polling cycle (3) is a method mainly for dealing with fluctuations caused by the polling wait shown in FIG.
-The fluctuation handling processing unit 102 has a multiple relationship between the allocation cycle and the Polling cycle.
The fluctuation handling processing unit 102 controls so that the Polling cycle comes to a fixed time position in the allocation cycle.
-The fluctuation handling processing unit 102 makes (instructs) the declaration to come at a predetermined time position in the Polling cycle.
-The fluctuation handling processing unit 102 makes the deviation of the Polling cycle smaller than the time that can be tolerated.

The communication device 1 suppresses the occurrence of fluctuation itself by performing at least one or more of the above methods.
The result of comparison between the present invention and the prior art is shown in FIG. As shown in FIG. 2, comparing the prior art (M-DBA, BG-DBA) with the technology of the present invention, the over-allocation for upstream bandwidth, delay variation and low jitter tolerant traffic accommodation is more than the prior art. The technique in the present invention is excellent. Further, regarding the delay, there is no difference between the conventional technique and the technique in the present invention, and the downlink band is deteriorated by the set accuracy as compared with the conventional technique.

Although the IEEE specification PON has been described above as an example, the same applies to the ITU-T specification PON. For example, in the case of (1), the transmission instruction is BWMap (BandWidth Map). Let it be the BWMap of the down frame of the time-lapsed superframe counter value obtained by adding the statistical value of the assumed fluctuation, for example, the maximum fluctuation or the average of the fluctuation multiplied by the coefficient. Further, the fluctuation handling processing unit 102 selectively suppresses the transmission of the downlink frame until the time when the downlink frame should be transmitted, or the token of the shaper shaping the downlink frame transmits the downlink frame at that time. Accumulate so as to be sufficient, or set the transmission timing of the downlink frame at the relevant time.

According to the communication device 1 configured as described above, fluctuations occur in either the component 400 (first component) having an arithmetic processing function or the component 401 (second component) having a transmission function. In this case, at least one or both of the component 400 and the component 401 in which the fluctuation is generated is provided with a fluctuation handling processing unit 102 that performs a process of suppressing the fluctuation. As a result, the occurrence of fluctuation itself is suppressed. Therefore, the influence of link breakage due to fluctuation can be suppressed.

Further, the communication device 1 performs a method of issuing a transmission permission after a lapse of a predetermined time obtained based on the fluctuation statistical value, a method of performing priority transmission of the transmission permission, or synchronizing the allocation cycle and the Polling cycle. The occurrence of fluctuation itself is suppressed by performing any of the methods. Therefore, the influence of link breakage due to fluctuation can be suppressed.

Further, the communication device 1 may be configured to include a fluctuation determination unit 101. The fluctuation determination unit 101 is a software component such as a FASA platform, a FASA application, an external component, or the like. The fluctuation determination unit 101 determines the component in which the fluctuation is occurring in the communication device 1. For example, the fluctuation determination unit 101 is a component that determines whether the fluctuation is generated in the component 400, the fluctuation is generated in the component 401, or the fluctuation is generated in both the component 400 and the component 401. The fluctuation determination unit 101 may be provided in the fluctuation handling processing unit 102, the component 400, the component 401, the outside of the communication device 1, and a communication device other than the communication device 1.

The processing of the fluctuation determination unit 101 will be described with reference to a specific example. For example, the fluctuation determination unit 101 determines that fluctuation has occurred in the component 401 when either the polling wait or the conflict with the downlink data has occurred. Further, for example, the fluctuation determination unit 101 determines that fluctuation has occurred in the component 400 when any of interruption, paging, and memory conflict has occurred. Further, for example, the fluctuation determination unit 101 determines that fluctuation has occurred in both the component 400 and the component 401 when the interrupt waiting has occurred.

FIG. 1 shows a configuration in which the component 400, the component 401, and the fluctuation handling processing unit 102 are provided in the same housing (communication device 1), but the configuration is not limited to this. For example, a part 400, a part 401, and a part or all of the fluctuation handling processing unit 102 may be provided in another housing. Specifically, when the communication device 1 is a device through which user data is conducted, the communication device 1 includes only the component 401. Further, the component 400 may be an Open flow controller such as OLT, Generic hardware, an external component, a Cont version, EMS, or ONOS. The fluctuation determination unit 101 may be configured as a single device as a fluctuation handling processing device, or may be included in any one of the component 400, the component 401, the interface 402, or a different component other than the component 400.
Further, when the fluctuation determination unit 101 and the fluctuation response processing unit 102 are included in any of the component 400, the component 401, the interface 402, or other different components, the determination result by the fluctuation determination unit 101 is determined by the fluctuation response processing unit 101. A path to be input to 102 may be provided.

(Embodiment 1)
Hereinafter, the component 400 of FIG. 11 may be used as an instruction unit, and the component 401 may be used as an execution unit. Among the functions of the component 400, a part of the functions for calculating the bandwidth allocation calculation or the transmission permission time may be used as an instruction unit, and the rest may be used as an execution unit. May be good.
The communication device is, for example, a communication device that executes communication with another communication device by a signal such as an optical signal passing through a communication network such as an optical fiber network such as ODN such as PON. The communication device is, for example, an OLT. The communication device may be, for example, an OSU (Optical Subscriber Unit). The communication device may be, for example, a combination of an OLT having or not having a switch unit (SW: Switch) for switching an optical signal and another SW. The communication device may be, for example, a combination of an OLT and an ONU. The communication device may include a plurality of devices. Further, it may be another communication device such as an ONU, a multiplexer (MUX: multiplexer), a demultiplexer (DMUX: demultiplexer), or a SW. The communication device may be composed of a plurality of components. Each component may be contained in a single device or in a separate device. The communication device may be one virtual device composed of a plurality of devices. The virtual device is an OLT setting management system such as an operation system (OpS: Operation System), OSS (Operation Support System), NE-OpS that controls NE (Network Element), an NE controller, and NE-OpS. EMS and the like (Element Management System (OpS, OSS, NE-OpS, NE controller, EMS may be referred to as OpS, etc., and one of them may be represented as a representative of the other)). May be good.

Next, as an example, it is assumed that the communication device is an OPT of an ITU-T recommendation compliant OPT such as a TWDM (Time and Wavelength Division Multiplexing) -PON system such as NG-PON2 (Next Generation-PON2). , Operation, etc. are illustrated. Here, TWDM-PON is used, but PON refers to G.I. G.A. other than TWDM-PON conforming to the 989 series. 987, G.M. 984, G.M. XG (10 Gigabit Capable) -PON, G (Gigabit capable) -PON, B (Broadband) PON conforming to the 983 series, IEEE 802.3av and 1904.1, etc., and 10GE- conforming to 802.3ah, respectively. It may be PON, GE (Gigabit Ethernet®) -PON. In the case of IEEE compliance, the TC (Transmission Convergence) layer and the PMD (Physical Medium Dependent) layer can be read as the corresponding layers in the standard.

The communication device includes hardware or software or a combination thereof as a component or a componentized function. For example, a communication device includes software components such as an application (for example, a FASA application) in which functions different for each service or each communication carrier are realized by using a general-purpose input / output interface (for example, a FASA application API). A basic component of an access network device (eg, FASA) that provides a generalized input / output interface to the software component and a function that does not need to be changed according to a service or request because it is standardized. It has a base). Here, by using a general-purpose input / output interface, it is easy to add or replace functions, and services of various requirements can be provided flexibly and promptly. In addition, in this specification, an application is also referred to as an "application".

The exchange between the parts is performed, for example, via the middleware unit 120 described later, but the original transfer path or means of the communication device 51 may be used, OpenFlow, Netconf / YANG, or SNMP (Simple Network Management Protocol). You may use standardized means such as.

In addition, the communication between parts is a route such as internal wiring, backboard, OAM (Operation Administration and Maintenance) section, main signal line, dedicated wiring, OpS, controller or control panel (Cont: CONTrol board, CONTrol panel). It can be either. When the communication between parts is directly terminated and input, it may be encapsulated in the OAM section or the main signal. Communication between parts may be terminated at any point and input via internal wiring, backboard, OAM section, main signal line, dedicated wiring, OpS, etc., via a path such as a controller or control panel. .. When using the OAM section or the main signal line, it is desirable to encapsulate it in the OAM section or the main signal. When passing through the main signal line, it is desirable to distribute by OSU or SW at another location. These are the same in the following description.

In this embodiment, the communication device further includes an interface for software components in an application such as a FASA application or a platform such as a FASA platform.

(Embodiment 1-1)
In the first embodiment, the configuration of the communication device constituting the communication system used for the TWDM-PON will be described. The communication device described in the 1-1 embodiment is used as the device shown in FIG. 6 and the communication device shown in FIG. 7. Hereinafter, examples 1 to 6 will be described as examples of the architecture of the communication device. The architecture of the communication device constituting the communication system may be an architecture other than the first to sixth examples described below. For example, the software part of the communication device in the first to sixth examples of the architecture may be a hardware part.

(First example of architecture)
FIG. 3 is a diagram showing a first example of the architecture of the communication device. In the first example of the architecture, the communication device includes a non-general-purpose device-dependent unit 110 whose operation depends on the device, and a middleware unit 120 that hides the difference between the hardware and software of the device-dependent unit 110 and the device-dependent application unit 150. A general-purpose device-independent application unit 130 whose operation does not depend on the device and a device-dependent application unit 150 are provided. Therefore, the device-dependent section 110 (vendor-dependent section) is a functional section that depends on the standard to which the device of the communication device conforms and the manufacturing vendor of the device. In other words, the device-dependent unit 110 has low compatibility with other communication devices, and cannot be used as it is for newly manufactured communication devices (particularly, devices having different conforming standards or manufacturing vendors). The device-dependent unit 110 executes one or more functions provided in the network device.

The device-independent application unit 130 is a functional unit that does not depend on the standard, method, device type, device generation, or device manufacturing vendor to which the device of the communication device conforms. In other words, the device-independent application unit 130 has high compatibility with other communication devices, and can be used as it is for newly manufactured communication devices (particularly, devices having different conforming standards and manufacturing vendors). Specific examples of the application provided in the device-independent application unit 130 include an application that performs setting processing in a network device, an application that performs setting change processing, an application that performs algorithm processing, and the like.

The middleware unit 120 and the device-independent application unit 130 are connected via the device-independent API 21. The device-independent API 21 is an input / output IF that does not depend on the device.

The device-dependent section 110 includes, for example, the hardware section 111 (PHY), the hardware section 112 (MAC), the hardware section 111 (PHY), and the hardware section that depend on the standard of the device-dependent section 110 to be compliant or the device manufacturing vendor. At least a part of the hardware unit 111 (PHY), the hardware unit 112 (MAC), and the software unit 113 of the software unit 113 and the OAM unit 114 that execute the driver and firmware that drive the 112 (MAC), and the device-dependent unit 110. It is configured to include a device-dependent application unit 150 that drives the device. The hardware unit 111 (PHY), the hardware unit 112 (MAC), the software unit 113, the OAM unit 114, and the middleware unit 120 are connected via the device-dependent API 23. The device-dependent API 23 is a device-dependent input / output IF. The device-dependent unit 110 further includes a NE management / control unit 115. The NE management / control unit 115 and the middleware unit 120 are connected via the device-dependent API 25. The device-dependent API 25 is a device-dependent input / output IF.
The middleware unit 120 and the device-dependent application unit 150 are connected by the device-dependent API 23. The device-dependent application unit 150, the OAM unit 114, the software unit 113, the hardware unit 111 (PHY), and the hardware unit 112 (MAC) are connected by the device-dependent API 24. The device-dependent application unit 150 and the management / control agent unit 133 are connected by the API 26.

What kind of function is the device-dependent unit 110 or the device-independent application unit 130 is derived from the limitation derived from the processing for realizing the middleware unit 120 or the device-independent application unit 130, for example, the processing capacity of the software. In addition to the restrictions to be applied, it may be determined according to the frequency of function updates, the importance of extended functions, and the like. As a result, the communication device can facilitate the flexible and quick addition of the extended function unit (unique function unit) by the device-independent application unit 130, and can provide the communication service in a timely manner.

For example, priority processing of the main signal, DBA (Dynamic Bandwidth Assignment) that improves line utilization efficiency, and other frequently updated functions or functions that contribute to communication service differentiation are prioritized, and the device-dependent unit 110 or device-independent. You may decide to use the application unit 130. Further, the device-independent application unit 130 may be used because the difference is small with respect to at least one of the standard, generation, method, system, device type, and manufacturing vendor to which the device to be shared conforms. Here, the configuration in which a predetermined function such as DBA is arranged in the device-dependent unit 110 or the device-independent application unit 130 is shown, but depending on the function deployment, both may be the device-independent application unit 130, or both. It may be the device-dependent unit 110. As an example in which both are device-independent application units 130, for example, an information processing unit such as a processor equipped with a processing unit for a function such as DBA is provided in a powerless transmitter / receiver, and an application or the like is provided with a powerful information processing capability. This is a case where inter-processor communication or inter-device communication between devices works as middleware in preparation for an information processing unit at a location such as OSU. When both are provided in the device-dependent unit 110, it is a case where a function such as DBA is compiled as a part of firmware or the like as in the previous example.

Any of the compliant standards, generations, methods, systems, equipment types, manufacturing vendor features, even if it is not optimal for at least one of the compliant standards, generations, methods, systems, equipment types, and manufacturing vendors. In order to generalize the above, a common IF for executing the function may be used. The common IF may include IFs and parameters that are not used in any of the standards, generations, methods, systems, device types, and manufacturing vendors to which the device-dependent unit 110 conforms.

At least one of the middleware unit 120 shown in FIG. 3, the driver of the device-dependent unit 110 shown in FIG. 4 described later, and the device-dependent application unit 150 (vendor-dependent application unit) shown in FIG. 3 and FIG. 4 described later. A conversion function unit that converts IFs and parameters to correspond to the device-dependent unit 110, and a function unit that automatically sets IFs and parameters corresponding to insufficient IFs and parameters may be further provided.

The hardware unit 111 (PHY) executes from the physical layer to the processing related to optical transmission / reception (PHYsical sublayer processing). The hardware unit 112 (MAC) executes MAC (Media Access Control) processing. The software unit 113 executes device-dependent drivers, firmware, applications, and the like.

In addition to these, the hardware unit 111 (PHY) and the hardware unit 112 (MAC) of the device-dependent unit 110 may include a general-purpose server, a layer 2 SW, or the like. The device-dependent unit 110 does not have to include the hardware unit 112 (MAC). The device-dependent unit 110 does not have to include a part of the hardware unit 111 (PHY). For example, the device-dependent unit 110 does not have low-level signal processing such as modulation / demodulation signal processing, forward error correction (FEC), code decoding processing, and encryption processing, and may have only optical-related functions. Good. The device-dependent unit 110 does not have to include a PCS (PHYsical Coding Sublayer) that encodes data. The device-dependent unit 110 does not have to include a PMA (Physical Medium Attachment) for serializing data and a PCS. The device-dependent unit 110 does not have to include a PMD connected to a physical medium. When the middleware unit 120 directly drives, controls, operates or manages the hardware unit 111 (PHY) and the hardware unit 112 (MAC) of the device-dependent unit 110 without going through the software unit 113, the device-dependent unit 110 may be used. The software unit 113 may not be provided.

The device-independent application unit 130 is, for example, an extended function unit 131-1 to 131-3 (extended function A, extended function B and extended function C in FIG. 3), a basic function unit 132, and a management / control agent unit. It is provided with 133. The management / control agent unit 133 exchanges data with the EMS 140.

In FIG. 3, the external device 160 is connected to the device-independent application unit 130 via the middleware unit 120, but the external device 160 is not necessarily connected to the device-independent application unit 130 via the middleware unit 120. You don't have to be. The EMS 140 and the external device 160 may be appropriately connected to the middleware unit 120 or may be directly connected to the device-independent application unit 130, if necessary. Further, although it is expressed as "connecting via the middleware unit 120", this expression is an expression from the viewpoint of the device-independent application unit 130. In reality, device-independent applications are connected to each other via the middleware unit 120 after the hardware connection.

Hereinafter, matters common to the extended function units 131-1 to 131-3 will be referred to as "extended function unit 131" by omitting a part of the reference numerals. EMS140 is, for example, OpS or the like. The device-independent application unit 130 may not include any of the extended function unit 131, the basic function unit 132, and the management / control agent unit 133, and the management / control agent unit 133 is the basic function unit 132. The management / control agent unit 133 may be included in the basic function unit 132 or the middleware unit 120.

The device-independent application unit 130 may further include a configuration other than the extended function unit 131, the basic function unit 132, and the management / control agent unit 133. For example, when the extended function unit 131 is unnecessary, the device-independent application unit 130 does not have to include the extended function unit 131. Further, the device-independent application unit 130 may include one or more extended function units 131.

It is preferable that the extended function unit 131 can be added, deleted, replaced or changed independently without unnecessarily affecting other functions. For example, the extension function unit 131 may be added, deleted, replaced, or changed as appropriate when, for example, a multicast service or an extension function unit 131 that executes power saving measures is required according to a service request. ..

The basic function unit 132 may be included in the device-independent application unit 130 as a part of the extension function unit 131, or may be replaced by a function unit lower than the middleware unit 120. When the extended function unit 131 includes the basic function unit 132, the device-independent application unit 130 does not have to include the basic function unit 132. When a functional unit lower than the middleware unit 120 replaces the basic function unit 132, the device-independent application unit 130 does not have to include the basic function unit 132. When the extended function unit 131 includes the basic function unit 132 and the function unit lower than the middleware unit 120 substitutes for the basic function unit 132, the device-independent application unit 130 does not have to include the basic function unit 132.

When the management / control agent unit 133 does not receive communication from the EMS 140 and automatically sets according to a predetermined setting, the management / control agent unit 133 does not have to input / output with the EMS 140. Further, when the management / control agent unit 133 does not have the management setting function and the other device-independent application unit 130, the basic function unit 132, or the device-dependent unit 110 has the management setting function, the device-independent application unit 130 The management / control agent unit 133 may not be provided.

Information may be directly input / output between the EMS 140 and the device-independent application unit 130. Further, the device-dependent unit 110 may be replaced by the NE management / control unit 115 and the device-dependent application unit 150 (see FIG. 4 described later) which is a lower function unit of the NE management / control unit 115.

When the management / control agent unit 133 automatically sets according to a predetermined setting, it is not necessary to input / output information to / from the EMS 140. Further, when the management / control agent unit 133 does not have the management setting function and the other device-independent application unit 130, the basic function unit 132, or the device-dependent unit 110 has the management setting function, the device-independent application unit 130 manages. -The control agent unit 133 does not have to be provided. Information may be directly input / output between the EMS 140 and the device-independent application unit 130.

The device-dependent application unit 150 may input / output information via the middleware unit 120, may directly input / output information from the management / control agent unit 133, or may input / output information directly between the two. Information may be input / output, or may be directly input / output to and from EMS140. Further, when the device-dependent application unit 150 is automatically set according to a predetermined setting without receiving communication from the EMS 140, and management and control information can be acquired from the EMS 140 via the middleware unit 120, the device The independent application unit 130 does not have to include the management / control agent unit 133.

The device-independent application unit 130 inputs information via the middleware unit 120 at least between the hardware unit 111 (PHY) and the hardware unit 112 (MAC) of the device-dependent unit 110 or between the software unit 113. Output. The device-independent application unit 130 inputs / outputs to and from each other via the middleware unit 120 as needed. In particular, when the device-independent application unit 130 executes control or management according to the information input / output to / from the EMS 140, the device-independent application unit 130 transfers the information to / from the management / control agent unit 133 that receives communication from the EMS 140. Input / output.

An example of input / output between the device-independent application unit 130 and the device-dependent unit 110 is as follows.
For example, the DBA application unit and the protection application unit input / output information to and from the embedded OAM engine of the TC layer. The DWBA (Dynamic Wavelength and Bandwidth Assignment) application and the ONU registration authentication application unit input / output information to and from the PLOAM engine of the TC layer. The power saving application unit inputs / outputs information to and from the OMCI and the L2 main signal processing function unit (L2 function (Layer 2 function) unit). The MLD (Multicast Listener Discover) proxy application unit inputs and outputs information to and from the L2 function unit. The low-speed monitoring application (OMCI) inputs and outputs information to and from OMCI. The OMCI and L2 functional units operate the XGEM framer (XGPON Encapsulation Method Framer) and encryption. Here, the DWBA and the DBA may be separate, integrated, or combined. For example, the management / control agent unit 133 is an application unit of the maintenance operation function, and inputs / outputs information to and from EMS 140, which is an OpS for the NE management / control unit 115.

The implementation of the device-independent application unit 130 may have a priority. For example, the management / control agent unit 133 has the highest priority. Below the second priority is, for example, a DBA application, a DWBA application, a power saving application, an ONU registration authentication application, an MLD proxy application, a protection application, and a low speed monitoring application (OMCI).

As the application of the extended function unit 131, only the application for driving the functions prepared for some vendors, methods, types, and generations and the devices of some vendors, methods, types, and generations via the device-independent API 21. It may include an app that drives the features provided for.

The management / control agent unit 133 inputs / outputs to and from the EMS 140 and the middleware unit 120. The middleware unit 120 inputs / outputs NE management information and control information to / from the NE management / control unit 115.
The NE management / control unit 115 may directly transmit / receive NE management information and control information to / from the EMS 140 without going through the middleware unit 120, or may send / receive NE management information and control information via the management / control agent unit 133. You may send and receive.
The device-dependent application unit 150 inputs / outputs NE management information and control information to / from the management / control agent unit 133. The device-dependent application unit 150 may directly input / output information to / from the EMS 140 without going through the management / control agent unit 133. The management / control agent unit 133 inputs / outputs information between the EMS 140, the middleware unit 120, and the device-dependent application unit 150. The middleware unit 120 inputs / outputs NE management information and control information to / from the NE management / control unit 115.

The middleware unit 120 inputs / outputs information via the device-independent application unit 130 and the device-independent API 21. The middleware unit 120 inputs / outputs information to / from the OAM unit 114 of the device-dependent unit 110, the driver, the firmware, the hardware unit 111 (PHY), or the hardware unit 112 (MAC) via the device-dependent API 23. The middleware unit 120 outputs the input information as it is or in a predetermined format. For example, if the output destination is each part of the device-independent application unit 130, the middleware unit 120 converts the information into the input format of each part of the device-independent API 21. If the output destination is the OAM unit 114 of the device-dependent unit 110, the driver, the firmware, the hardware unit 111 (PHY) or the hardware unit 112 (MAC), the middleware unit 120 is the device-dependent API 23 in the form of input to each. After converting to the format, or after terminating and performing the predetermined processing, the information is transmitted to the output destination.

At the time of input, the middleware unit 120 deletes unnecessary input information at each input destination, and if there is insufficient information, it can collect and supplement it via another device-independent API 21 or device-dependent API 23. desirable. Further, when inputting to the middleware unit 120, it may be broadcast or multicast to broadcast to a related application or the like.

In FIG. 3, the middleware unit 120 and the device-dependent unit 110 are illustrated as a single unit, but each may be composed of a plurality of units. When the hardware of the device-dependent unit 110 includes a plurality of processors, the middleware unit 120 may input / output across the processors and hardware by using interprocessor communication or the like. The device-independent application unit 130 and the device-independent application unit 130 may be arranged in the user space on a single processor as an execution program such as a DLL (Dynamic Link Library), or on a plurality of processors. It may be arranged in the user space.

Further, the device-independent application unit 130 may be arranged in the kernel space after securing input / output IFs such as API, or may be arranged together with the middleware unit 120 having an IF that can be independently replaced with firmware or the like. Alternatively, it may be incorporated into firmware or the like and recompiled. The user space and kernel space may be any combination for each device-independent application unit 130.
The device-independent application unit 130 corresponding to the same function may be implemented in both the user space and the kernel space. In this case, for example, it may be switched and one of them may be selected, both may be processed in cooperation, or only one of them may be actually processed. The same applies to the software of the device-dependent unit 110.

Desirably, the more high-speed processing such as main signal processing, DBA processing, and low-layer signal processing is required, the more there is a trade-off with the immediacy of expandability / replacement, but high-speed processing with less overhead is expected. It is desirable to incorporate it in the kernel space or firmware. The processor on which the device-dependent application unit 150 (see FIG. 4 described later) is also a processor that actually processes or its processor from the viewpoint of limiting the bus and speed due to inter-processor communication and affecting other programs due to occupation of the communication path. It is desirable to place it in the user space, kernel space, or firmware of a nearby processor. However, in order to reduce the capacity of the processor to be actually processed or a processor in the vicinity thereof, the communication cost due to the inter-processor communication increases, but the processing may be performed by a remote processor.

It is desirable that the device-independent API 21 is provided in the middleware unit 120 in advance assuming the extended function unit 131 to be added, but it is necessary in a form of suppressing modification of the device-dependent API 23 and other device-independent application units 130. It may be added or deleted accordingly.

In this example, the softened area is the basic function unit 132, the management / control agent unit 133, the extended function unit 131, and the middleware unit 120, but the softened area is the service adaptation (encryption, fragment processing, GEM). Framed / XGEM framing, PHY adaptation FEC, scrambling, synchronous block generation / extraction, GTC (GPON Transmission Convergences) framing, PHY framing, SP (Serial parallel) conversion, and encryption method may also be targeted. An example of implementing the software function and an example of function deployment corresponding to the hardware part will be described. The function deployment includes, for example, a software function in a network device or an external server. This is the same in other examples. ..
Further, if the device-dependent application unit 150 is unnecessary, the communication device may not include the device-dependent application unit 150, the API 24, and the API 26. This configuration is called the second example of the architecture. The middleware unit 120 becomes complicated because the device-dependent application unit 150 is not provided.

(Third example of architecture)
FIG. 4 is a diagram showing a third example of the architecture of the communication device. In FIG. 4, instead of the middleware unit 120 described in the first example of the architecture shown in FIG. 3, the basic function unit 132 is the hardware unit 111 (PHY), the hardware unit 112 (MAC), and the extended function unit 131. And input / output. The other device-independent application unit 130 and the device-dependent application unit 150 are the same as those in the first example of the architecture.

In FIG. 4, the EMS 140 and the external device 160 are connected to the device-independent application unit 130 via the basic function unit 132, but the EMS 140 and the external device 160 do not necessarily have a device via the basic function unit 132. It is not necessary to connect to the dependent application unit 130. The EMS 140 and the external device 160 may be appropriately connected to the middleware unit 120 or may be directly connected to the device-independent application unit 130, if necessary. Further, although it is expressed as "connecting via the middleware unit 120", this expression is an expression from the viewpoint of the device-independent application unit 130. In reality, device-independent applications are connected to each other via the middleware unit 120 after the hardware connection.

Compared to the first example of the architecture, the third example uses the middleware unit 120 including the device-dependent APIs 23 and 25 for each device having at least one of a compliant standard, generation, method, system, device type, and manufacturing vendor. No need to create. As a result, the communication device of the third example of the architecture has the effect of generalizing and porting more functions between generations between devices, facilitating verification of connectivity, and making the functions of the devices robust.

The communication device according to the third example of the architecture includes a device-dependent unit 110 and a device-independent application unit 130. The device-dependent section 110 includes a hardware section 111 (PHY) and a hardware section 112 (MAC), and a hardware section 111 (PHY) and a hardware section 112 (MAC), which depend on a compliant standard or a device manufacturing vendor. A software unit 113 such as a driver and firmware for driving the device, and a device-dependent application unit 150 for driving at least a part of the device-dependent unit 110 are provided. The driver or the like hides the difference in the device-dependent unit 110.

The device-independent application unit 130 is a general-purpose device-independent application that executes device-independent processing, and includes an extended function unit 131 and a basic function unit 132. The basic function unit 132 may be via a driver that hides the difference between the hardware unit 111 (PHY) and the hardware unit 112 (MAC) and the device-dependent software unit 113, or the device-independent API 27 (porting IF) or device. It is connected to the device-dependent unit 110 via the dependent application unit 150, and data is transmitted between the hardware unit 111 (PHY) and the hardware unit 112 (MAC) of the device-dependent unit 110 and the device-dependent software unit 113. Input / output.

The basic function unit 132 and the extended function unit 131 in the device-independent application unit 130 are connected via the device-independent API 22 (extended IF). The basic function unit 132 and the device-dependent unit 110 are connected via the device-independent API 27. The basic function unit 132 in the device-independent application unit 130 inputs information between the hardware unit 111 (PHY), the hardware unit 112 (MAC), and the extended function unit 131 instead of the middleware unit 120. Output. The basic function unit 132 and the device-dependent application unit 150 in the device-dependent unit 110 are connected via the device-independent API 27. The device-dependent application unit 150 and the other functional units of the device-dependent unit 110 are connected via the device-dependent API 24. In the basic function unit 132, instead of the middleware unit 120, the basic function unit 132 inputs / outputs to the hardware and the extended function unit 131. The basic function unit 132 may include a management / control agent unit 133 (see FIG. 3) that receives communication from the EMS 140, or may include a management / control agent unit 133 as the extension function unit 131. ..

The device-independent application unit 130 inputs / outputs to and from each other via the basic function unit 132 as needed. The extended function unit 131 of the device-independent application unit 130 inputs / outputs information via the basic function unit 132 and the device-independent API 22 (extended IF). The basic function unit 132 inputs and outputs information via the extended function unit 131 and the device-independent API 22, and the OAM unit, driver, firmware, hardware unit 111 (PHY) and hardware unit 112 (MAC) of the device-dependent unit 110. ), And the information is input / output via the driver of the device-dependent unit 110 that hides the difference between the device-independent API 22 (porting IF) and the device-dependent unit 110, or the device-dependent application unit 150 and the device-independent API 27.

Similar to the middleware unit 120 shown in FIG. 3, the basic function unit 132 inputs information as it is or in a predetermined format. For example, in the case of another device-independent application unit 130, the basic function unit 132 converts the input format into the device-independent API 22 format, and uses the device-dependent OAM unit, driver, firmware, and hardware unit. If there is, the information is input after being converted into the device-independent API 22 format of the input format, or after being terminated and performing a predetermined process. At the time of input, the basic function unit 132 deletes unnecessary input information at each input destination, and if there is insufficient information, collects and supplements it via another device-independent API 22 or device-independent API 27. Is desirable. However, the basic function unit 132 may broadcast or multicast the input to the input destination to broadcast the input to the related application or the like.

The device-independent application unit 130 includes, for example, extended function units 131-1 to 131-3 and basic function units 132. The device-independent application unit 130 does not have to include either the extended function unit 131 or the basic function unit 132. The device-independent application unit 130 may further include functional units other than the extended function unit 131 and the basic function unit 132. For example, when the extended function unit 131 is unnecessary, the device-independent application unit 130 does not have to include the extended function unit 131.

It is preferable that the extended function unit 131 can be added or deleted independently without affecting other functions. For example, when the extension function unit 131 is used for multicast service and power saving support according to the service request, the extension function unit 131 is added as needed when it is needed, and deleted as needed when it is no longer needed. However, it may be replaced or changed according to the change.
A part of the basic function unit 132 may be replaced by the device-dependent application unit 150. The device-dependent application unit 150 inputs / outputs information directly from the basic function unit 132, but even if the information is input / output to / from the EMS 140 as it is or after a predetermined conversion, the information is input / output to / from the EMS 140 without going through the basic function unit 132. Good.

Similar to the first example of the architecture shown in FIG. 3, it is desirable that the device-independent APIs 22 and 27 are provided in advance in the basic function unit 132, assuming an extended function unit 131 to be added later, but if necessary. , Device-independent API 22, device-independent API 27, other device-independent application unit 130, device-dependent application unit 150, or device-dependent API 24 may be added or deleted in a manner that suppresses modification. Further, if the device-dependent application unit 150 is unnecessary, the communication device may not include the device-dependent application unit 150 and the API 24. This configuration is called the fourth example of the architecture. The basic function unit 132 becomes complicated because the device-dependent application unit 150 is not provided.

(5th example of architecture)
The upper right figure of FIG. 5 is a diagram showing a fifth example of the architecture. The lower right figure of FIG. 5 corresponds to the first to fourth examples of the architecture. The figure shows a case where the communication device is an OLT. The fifth example of the architecture is a function cloud that implements (cloud) the OLT function on the external hardware and makes use of the existing / commercial OLT hardware to prepare the function addition / change according to the service. It is suitable for the approach of cloud computing.

In this example, the communication device consists of existing / commercial hardware and external hardware. For example, the existing / commercial hardware is a non-general-purpose device-dependent section 110 that depends on the device, and a middleware section 134 that hides the difference between hardware and software on the external hardware and a general-purpose section whose operation does not depend on the device. The device-independent application unit 130 is provided. Therefore, the device-dependent section (vendor-dependent section) below the middleware section 134 in the figure is a functional section that depends on the standard to which the device of the communication device conforms and the manufacturing vendor of the device. Further, as in the first example of the architecture, the device-independent application unit 130 is a functional unit that does not depend on the standard to which the device of the communication device conforms or the manufacturing vendor of the device.

The middleware unit 134 and the device-independent application unit 130 are connected via a device-independent API 135, which is a device-independent input / output IF. For example, the software unit, OAM, hardware unit (PHY) and hardware unit (MAC) of the device-dependent unit 110, and the middleware unit 134 on the external hardware are device-dependent input / output IFs. Dependent API 132 and connected via device-to-device connection between existing / commercial hardware and external hardware.

In this architecture, as in the first example of the architecture, the device-independent application unit 130 can easily and quickly add the extended function unit (unique function unit), and can provide the communication service in a timely manner. Here, the device-dependent unit 110 may be the maintenance operation, access control, physical layer processing, and optical module shown in FIG. 5, and depends on the configuration of the device itself.

A conversion function unit that converts IFs, parameters, etc. to at least one of the middleware unit 134, the driver of the device-dependent unit 110, and the device-dependent application unit 150 (vendor-dependent application unit) so as to correspond to the device-dependent unit 110. Alternatively, it may be further provided with a functional unit that automatically sets in response to insufficient IFs, parameters, and the like.

The device-dependent unit 110 includes a hardware unit and a software unit. The software section executes device-dependent drivers, firmware, applications, and the like.

The device-dependent unit 110 may not include a PMD and MAC connected to a physical medium, a PMA for serializing data, and a part of PCS or PHY which is a part for encoding data. For example, it may have only optical-related functions without providing low-level signal processing such as modulation / demodulation signal processing, FEC, code decoding processing, and encryption processing.

The device-independent application unit 130 is, for example, a management / control agent unit 133 that acquires data from EMS, an extended function unit 131-1 to 131-3, and a basic function unit 132. Hereinafter, matters common to the extended function units 131-1 to 131-3 will be referred to as "extended function unit 131" by omitting a part of the reference numerals. The device-independent application unit 130 may not include any of the management / control agent unit 133, the extended function unit 131, and the basic function unit 132.

The device-independent application unit 130 may further include configurations other than the management / control agent unit 133, the extended function unit 131, and the basic function unit 132. For example, when the extended function unit 131 is unnecessary, the device-independent application unit 130 does not have to include the extended function unit 131. Further, the device-independent application unit 130 may include one or more extended function units 131.

It is preferable that the extended function unit 131 can be added, deleted, replaced or changed independently without unnecessarily affecting other functions. For example, the extension function unit 131 may be added, deleted, replaced, or changed as appropriate when, for example, a multicast service or an extension function unit 131 that executes power saving measures is required according to a service request. ..

The basic function unit 132 may be included in the device-independent application unit 130 as a part of the extension function unit 131, or may be replaced by a function unit lower than the middleware unit 134. When the extended function unit 131 includes the basic function unit 132, the device-independent application unit 130 does not have to include the basic function unit 132. When a functional unit lower than the middleware unit 134 replaces the basic function unit 132, the device-independent application unit 130 does not have to include the basic function unit 132. When the extended function unit 131 includes the basic function unit 132 and the function unit lower than the middleware unit 120 substitutes for the basic function unit 132, the device-independent application unit 130 does not have to include the basic function unit 132.

When the management / control agent unit 133 does not receive communication from the EMS 140 and automatically sets according to a predetermined setting, the management / control agent unit 133 does not have to input / output with the EMS 140. Further, when the management / control agent unit 133 does not have the management setting function and the other device-independent application unit 130, the basic function unit 132, or the device-dependent unit 110 has the management setting function, the device-independent application unit 130 The management / control agent unit 133 may not be provided.

Information may be directly input / output between the EMS 140 and the device-independent application unit 130. Further, the device-dependent unit 110 does not have to include the NE management / control unit 115 and the IF of the NE management / control unit 115.

The basic function unit 132 may be included in the device-independent application unit 130 as a part of the extension function unit 131, or may be replaced by a lower function unit of the middleware unit 120. When the extended function unit 131 includes the basic function unit 132, or when the lower function unit of the middleware unit 120 replaces the basic function unit 132 or is a combination thereof, the device-independent application unit 130 is the basic function unit. 132 may not be included. Further, a part of the basic function unit 132 may be replaced by the device-dependent application unit 150 of the lower function unit of the middleware unit 120.

When the management / control agent unit 133 automatically sets according to a predetermined setting, it is not necessary to input / output information to / from the EMS 140. Further, when the management / control agent unit 133 does not have the management setting function and the other device-independent application unit 130, the basic function unit 132, or the device-dependent unit 110 has the management setting function, the device-independent application unit 130 manages. -The control agent unit 133 does not have to be provided. Information may be directly input / output between the EMS 140 and the device-independent application unit 130.

As the application of the extended function unit 131, only the application for driving the functions prepared for some vendors, methods, types, and generations and the devices of some vendors, methods, types, and generations via the device-independent API 21. It may include an app that drives the features provided for.

The management / control agent unit 133 inputs / outputs to and from the EMS 140 and the middleware unit 120. The middleware unit 120 inputs / outputs NE management information and control information to / from the NE management / control unit 115. The NE management / control unit 115 may directly transmit / receive NE management information and control information to / from the EMS 140 without going through the middleware unit 120, or may send / receive NE management information and control information via the management / control agent unit 133. You may send and receive.

The middleware unit 120 inputs / outputs information via the device-independent application unit 130 and the device-independent API 21. The middleware unit 120 inputs / outputs information to / from the OAM unit 114 of the device-dependent unit 110, the driver, the firmware, the hardware unit 111 (PHY), or the hardware unit 112 (MAC) via the device-dependent API 23. The middleware unit 120 outputs the input information as it is or in a predetermined format. For example, if the output destination is each part of the device-independent application unit 130, the middleware unit 120 converts the information into the input format of each part of the device-independent API 21. If the output destination is the OAM unit 114 of the device-dependent unit 110, the driver, the firmware, the hardware unit 111 (PHY) or the hardware unit 112 (MAC), the middleware unit 120 is the device-dependent API 23 in the form of input to each. After converting to the format, or after terminating and performing the predetermined processing, the information is transmitted to the output destination.

At the time of input, the middleware unit 120 deletes unnecessary input information at each input destination, and if there is insufficient information, it can collect and supplement it via another device-independent API 21 or device-dependent API 23. desirable. Further, when inputting to the middleware unit 120, it may be broadcast or multicast to broadcast to a related application or the like.

The middleware unit 120 and the device-dependent unit 110 are illustrated as a single unit, but each may be composed of a plurality of units. When the hardware of the device-dependent unit 110 includes a plurality of processors, the middleware unit 120 may input / output across the processors and hardware by using interprocessor communication or the like. The device-independent application unit 130 and the device-independent application unit 130 may be arranged as an execution program such as DLL in the user space on a single processor, or arranged in the user space on a plurality of processors. You may.

Further, the device-independent application unit 130 may be arranged in the kernel space after securing input / output IFs such as API, or may be arranged together with the middleware unit 120 having an IF that can be independently replaced with firmware or the like. Alternatively, it may be incorporated into firmware or the like and recompiled. The user space and kernel space may be any combination for each device-independent application unit 130.

The device-independent application unit 130 corresponding to the same function may be implemented in both the user space and the kernel space. In this case, for example, it may be switched and one of them may be selected, both may be processed in cooperation, or only one of them may be actually processed. The same applies to the software of the device-dependent unit 110.

Desirably, the more high-speed processing such as main signal processing, DBA processing, and low-layer signal processing is required, the more there is a trade-off with the immediacy of expandability / replacement, but high-speed processing with less overhead is expected. It is desirable to incorporate it in the kernel space or firmware. The processor in which the device-dependent application unit 150 is arranged also has the user space of the processor to be actually processed or a processor in the vicinity thereof from the viewpoint of the influence on other programs due to the limitation of the bus and speed due to the communication between the processors and the occupation of the communication path. It is desirable to place it in the kernel space or on the firmware. However, in order to reduce the capacity of the processor to be actually processed or a processor in the vicinity thereof, the communication cost due to the inter-processor communication increases, but the processing may be performed by a remote processor.

It is desirable that the device-independent API 21 is provided in the middleware unit 120 in advance assuming the extended function unit 131 to be added, but it is necessary in a form of suppressing modification of the device-dependent API 23 and other device-independent application units 130. It may be added or deleted accordingly. Others are the same as the first example of the architecture.

(6th example of architecture)
The sixth example of the architecture is the hardware unit 111 (PHY) and the hardware unit 112 (MAC), and the hardware unit 111 (PHY) and the hardware, which depend on the standard or the equipment manufacturing vendor that conforms as the equipment-dependent unit 110. It includes a software unit 113 such as a driver and firmware that drives the unit 112 (MAC), and a device-dependent application unit 150 that drives at least a part of the device-dependent unit 110.

The device-dependent application unit 150 and the device-dependent unit 110 are connected via the device-dependent API 24. The device-dependent application unit 150 may include a management / control agent unit 133 that receives communication from the EMS 140. The device-dependent API 24 may be added or deleted as necessary in a form that suppresses modification of the device-dependent application unit 150 and the device-dependent API 24.

The configuration of the communication device shown in the first to sixth examples of the architecture of the communication device is described on the premise of the IEEE of the PON conforming to the ITU-T recommendation such as TWDM-PON, but it is an ONU. It may be either an OLT or an ONU of an PON conforming to the ITU-T recommendation other than TWDM-PON, or it may be an IEEE standard compliant PON such as GE-PON or 10GE-PON, and TC. The same applies if the layer or PMD layer is read as the corresponding layer.

FIG. 6 is a diagram showing an example of the configuration of a virtual communication device or communication system including a group of parts or devices. The communication device shown in FIG. 6 may be a combination of mainly the same wavelength (in the example described later, the same frequency, mode, core, code, frequency, (sub) carrier, etc., and wavelength). The same applies to the following examples.) Optical switch unit (optical SW) 10, TRx11, switch unit (SW) 12, and switch unit (SW) for switching the input / output of the transmission / reception unit (TRx: Transceiver) 11 ) 13, the control unit 14, and at least a part or all of the proxy unit 15. The communication device may include an external server 16.

FIG. 6 shows a configuration in which TRx11 that transmits / receives (communicates) optical signals of different wavelengths (λA to λN) are connected to the same SW12, but the embodiment 1-1 is not limited to this. For example, in addition to the configuration in which TRx11 for transmitting and receiving optical signals of different wavelengths (λA to λN) are connected to the same SW12, TRx11 for transmitting and receiving optical signals of the same wavelength may be connected to the same SW12. However, TRx11 having at least a part of the wavelengths may be connected to a plurality of the same SW12s, TRx11 having at least a part of the wavelengths may be a variable wavelength, and some or all of the TRx11s may be transmitted. It may be TRx11 that performs only or only reception.

A communication device such as an OLT may include a control unit 14 from TRx11, or may further include an external server 16 in addition to these. Further, the OSU may be TRx11, or may include SW12 or SW13 in addition to the TRx11.
The communication device may be a virtual device including EMS. As a configuration for mounting parts on the EMS, a configuration such as ONOS (Open Network Operating System) may be used. The parts may be placed on the EMS, the parts may be placed on the virtual OLT on the EMS, or the parts may be placed in parallel with the virtual OLT on the EMS.

The communication system of the communication system configuration (1-1) includes an optical SW10, TRx11, SW12, SW13, a control unit 14, a proxy unit 15, and an external server 16 (FIG. 6).

When the communication device is an OLT, the OLT may be configured to include an optical SW10, a TRx11, a SW12, a SW13, and a control unit 14, or the optical SW10, TRx11, SW12, and SW13. , The control unit 14 and the external server 16 may be included. The OSU may be configured to include the optical SW10 and TRx11, may be configured to include the optical SW10, TRx11, and SW12, and may include the optical SW10, TRx11, and SW13. It may be configured.

The optical SW10 is connected to the ODN and TRx11. The optical SW10 performs autonomous control, or has other components provided in the device, an external OpS or the like (not shown), a controller (not shown), an external device (not shown), or the like (external OpS or the like (not shown)). Controlled from (not shown), controller (not shown), external device (not shown), etc. (hereinafter referred to as external device, etc.), or transferred via other components provided in the device, external device, etc. Controlled by instructions.

The optical SW10 may have different core wires (in the examples described later, different modes, cores, etc., and combinations thereof including core wires) for input / output of TRx11 having the same wavelength including input / output of TRx11 having a variable wavelength. The same applies to the following examples.) Or it may be switched to an optical duplexer connected to them, or multiple wavelengths including a variable wavelength (in the example described later, a plurality of frequencies, modes, cores, codes, frequencies, etc. (Sub) It may be a combination of carriers and the like including their wavelengths. This also applies to the following examples.) The input and output of TRx11 or those bundled by an optical duplexer or the like are different core wires. It may be switched to a wavelength including a variable wavelength (in the example described later, it may be a combination thereof including a frequency, a mode, a core, a code, a frequency, a (sub) carrier, etc., and a wavelength. The same applies to the following examples.) The input / output of TRx11 may be bundled and switched to a different core wire or an optical duplexer connected to them.

The optical SW10 performs autonomous control, is controlled by other components provided in a device such as TRx11, SW12, SW13, control unit 14, proxy unit 15, or external server 16, or is controlled by an external device, or TRx11, It is controlled by instructions transferred via other components provided in the device such as SW12, SW13, the control unit 14, the proxy unit 15, or the external server 16 or an external device.

TRx11 that transmits and receives optical signals of different wavelengths (λA to λN) is connected to SW12. The TRx11 performs autonomous control, is controlled by other components provided in the device such as the optical SW10, SW12, SW13, the control unit 14, the proxy unit 15, or the external server 16, or is controlled by an external device, or the optical SW10. , SW12, SW13, control unit 14, proxy unit 15, external server 16, and other devices, and are controlled by instructions transferred via external devices and other components. TRx11 adds or deletes tags of at least a part or a combination of VLAN (Virtual Local Area Network), priority, discard priority, destination, etc. to a part or all of the traffic of the optical SW10 or SW12 according to a predetermined procedure. , Replace, or process at least one of aggregation, distribution, distribution, duplication, folding or transmission, or a combination thereof, without changing the tag.

It should be noted that upstream traffic is not always aggregated. In the SW12 configuration of the communication system configuration (1-1), distribution for each wavelength is mainly performed, but tags such as aggregation, distribution, duplication, folding, transmission, VID (Virtual LAN Identifier), and tags indicating preferential disposal are added. Alternatively, the tag may be replaced. In the configuration of the communication system configuration (1-2) described later, the upstream traffic is mainly aggregated, but distribution, distribution, duplication, return, transparency, tag addition or tag replacement may be performed. Downstream traffic may also be aggregated, distributed, sorted, duplicated, folded, transparent, tagged, or tagged, or at least in some combinations. Which one to use is decided according to the service policy. This also applies to the subsequent communication system configurations.

SW12 is connected to SW13. The SW12 performs autonomous control, is controlled by other components provided in the device such as the optical SW10, TRx11, SW13, control unit 14, proxy unit 15, or external server 16, or is controlled by an external device, or the optical SW10. , TRx11, SW13, control unit 14, proxy unit 15, external server 16, and other devices, and are controlled by instructions transferred via external devices and other components. The SW12 adds, deletes, or replaces at least a part or a combination of tags such as VLAN, priority, discard priority, or destination to a part or all of the traffic of TRx11 or SW13 according to a predetermined procedure. Alternatively, at least a part of aggregation, distribution, distribution, duplication, folding, transparency, tag addition, or tag replacement, or a combination thereof is processed without changing the tag. This also applies to the subsequent communication system configurations.

The SW12 is not always controlled. There are cases where at least one of the proxy units 15 is controlled from TRx11, and there are cases where control information is transferred from TRx11 to at least one of the proxy units 15 without being controlled. As the transfer source, for example, there is a proxy unit 15 or an external server 16. In addition, the proxy unit 15 may move autonomously from TRx11. This also applies to the subsequent communication system configurations.

The SW 13 is connected to the proxy unit 15 directly or via a concentrating SW or the like. The concentrating SW performs at least a part of aggregation, distribution, distribution, duplication, folding or transmission of traffic from or to a plurality of OLTs. The SW13 performs autonomous control, is controlled by other components provided in the device such as the optical SW10, TRx11, SW12, control unit 14, proxy unit 15, or external server 16, or is controlled by an external device, or the optical SW10. , TRx11, SW12, control unit 14, proxy unit 15, external server 16, and other devices, and are controlled by instructions transferred via external devices and other components. The SW13 adds, deletes, or replaces at least a part or a combination of tags such as VLAN, priority, discard priority, or destination to a part or all of the traffic of the SW12 or the proxy unit 15 according to a predetermined procedure. Or, without changing the tag, at least a part of aggregation, distribution, distribution, duplication, folding or transparency, or a combination thereof is processed.

The control unit 14 is connected to other components included in the device such as the optical SW10, TRx11, SW12, SW13, the proxy unit 15, or the external server 16, or an external device. The control unit 14 controls components and external devices provided in devices such as the optical SW10, TRx11, SW12, SW13, the proxy unit 15 or the external server 16, or the optical SW10, TRx11, SW12, SW13, the proxy unit 15. Alternatively, the instruction is transferred via a component provided in the device such as the external server 16 or an external device.

The proxy unit 15 shown in FIG. 6 may be installed on the data path from the OLT or the OLT. However, since another device (for example, a concentrating SW that aggregates / distributes traffic from a plurality of OLTs or to the OLT) may intervene between them, it is not always directly connected. As a control flow, the proxy unit 15 may be provided in any of the optical SW10, TRx11, SW12, SW13, the control unit 14, and the external server 16.

The proxy unit 15 is connected to a device (not shown) on the upper side directly or via a concentrating SW or the like. The proxy unit 15 performs autonomous control, is controlled by other components provided in the device such as the optical SW10, TRx11, SW12, SW13, the control unit 14 or the external server 16, or is controlled by an external device, or the optical SW10. , TRx11, SW12, SW13, control unit 14, external server 16, and other devices included in the device, and are controlled by instructions transferred via an external device or the like. The proxy unit 15 adds a tag of at least a part of a VLAN, a priority, a discard priority, a destination, etc., or a combination thereof to a part or all of the traffic of the SW13 or the upper device (not shown) according to a predetermined procedure. , Delete, replace, or process at least part of aggregation, distribution, distribution, duplication, folding or transparency, or a combination thereof, without changing tags.

The external server 16 is connected to TRx11 or SW12 or SW13, a control unit 14, a proxy unit 15, an external OpS or the like (not shown), a controller (not shown), or an external device (not shown). The external server 16 controls other components provided in the device such as the optical SW10, TRx11, SW12, SW13 or the control unit 14 or the proxy unit 15, an external device, or the like, or the optical SW10, TRx11, SW12, SW13 or the control. The instruction is transferred via other components provided in the device such as the unit 14 or the proxy unit 15 or an external device.

The optical SW10, TRx11, SW12, SW13, the control unit 14, the proxy unit 15 or the external server 16 includes the components of the optical SW10, TRx11, SW12, SW13, the proxy unit 15 or the external server 16 and the like. Optical SW10, TRx11, SW12, SW13, at least part of the traffic of other components, at least part of a copy thereof, or at least part of the traffic rewritten at least part of them, or at least part of the response to them. It may be transmitted to other components provided in the device such as the proxy unit 15 or the external server 16 or an external device.

It should be noted that the element may not be included as appropriate, and the interaction with the element not included is skipped and exchanged with the element after that, for example. You may communicate with each other without the element.

In the communication system of the communication system configuration (1-2), TRx11 (λA to λA) and TRx11 that transmit and receive optical signals of the same wavelength instead of different wavelengths in addition to the configuration of the communication system configuration (1-1). (ΛB to λB), ..., TRx11 (λN to λN) are connected to SW12, respectively. Further, a plurality of TRx11 having at least a part of the different wavelengths TRx11 may be connected to the SW12. Others are similar.

The communication system of the communication system configuration (2-1) includes an optical SW10, TRx11, SW12, SW13, a control unit 14, and a proxy unit 15 (FIG. 6).
The optical SW10 is connected to the ODN and TRx11. The optical SW10 performs autonomous control, is controlled by another component provided in the device, an external device, or the like, or is controlled by an instruction transferred via another component provided in the device, an external device, or the like. Will be done.

TRx11 that transmits and receives optical signals of different wavelengths (λA to λN) is connected to SW12.
TRx11 processes a part or all of the traffic of the optical SW10 or SW12 in the same manner as 1-1. The TRx11 performs autonomous control, is controlled by another component provided in the device, an external device, or the like, or is controlled by an instruction transferred via another component provided in the device, an external device, or the like. To.

SW12 is connected to SW13. The SW12 performs autonomous control, is controlled by another component provided in the device, an external device, or the like, or is controlled by an instruction transferred via another component provided in the device, an external device, or the like. To. The SW12 processes a part or all of the traffic of TRx11 or SW13 in the same manner as 1-1.

The SW 13 is connected to the proxy unit 15 directly or via a concentrating SW or the like. The SW13 performs autonomous control, is controlled by another component provided in the device, an external device, or the like, or is controlled by an instruction transferred via another component provided in the device, an external device, or the like. To. The SW 13 processes a part or all of the traffic of the SW 12 or the proxy unit 15 in the same manner as 1-1.

The control unit 14 is connected to an optical SW10, TRx11, SW12, SW13, a proxy unit 15, an external device, or the like. The control unit 14 controls a component provided in the device, an external device, or the like, or transfers an instruction via the component provided in the device, the external device, or the like.
The proxy unit 15 is connected to a device (not shown) on the upper side directly or via a concentrating SW or the like. The proxy unit 15 performs autonomous control, is controlled by another component provided in the device, an external device, or the like, or is an instruction transferred via another component provided in the device, an external device, or the like. Be controlled. The proxy unit 15 processes a part or all of the traffic of the SW13 or the device on the upper side (not shown) in the same manner as 1-1.

The component provided in the device is at least a part of the traffic of other components provided in the device, at least a part of a copy thereof, or at least a part of the traffic rewritten at least a part thereof, or at least a part of the response to them. , It may be transmitted to other components provided in the device, an external device, or the like.

In the communication system of the communication system configuration (2-2), TRx11 (λA to λA) and TRx11 that transmit and receive optical signals of the same wavelength instead of different wavelengths in addition to the configuration of the communication system configuration (2-1). (ΛB to λB), ..., TRx11 (λN to λN) are connected to SW12, respectively. Further, a plurality of TRx11 having at least a part of the different wavelengths TRx11 may be connected to the SW12. Others are similar.

The communication system of the communication system configuration (3-1) includes an optical SW10, TRx11, SW12, SW13, a control unit 14, and an external server 16 (FIG. 6).
The optical SW10 is connected to the ODN and TRx11. The optical SW10 performs autonomous control, is controlled by another component provided in the device, an external device, or the like, or is controlled by an instruction transferred via another component provided in the device, an external device, or the like. Will be done.

TRx11 that transmits and receives optical signals of different wavelengths (λA to λN) is connected to SW12. The TRx11 performs autonomous control, is controlled by another component provided in the device, an external device, or the like, or is controlled by an instruction transferred via another component provided in the device, an external device, or the like. To. TRx11 processes a part or all of the traffic of the optical SW10 or SW12 in the same manner as 1-1.

SW12 is connected to SW13. The SW12 performs autonomous control, is controlled by another component provided in the device, an external device, or the like, or is controlled by an instruction transferred via another component provided in the device, an external device, or the like. To. The SW12 processes a part or all of the traffic of TRx11 or SW13 in the same manner as 1-1.

The SW13 is connected to a device (not shown) on the upper side directly or via a concentrating SW or the like. The SW13 performs autonomous control, is controlled by another component provided in the device, an external device, or the like, or is controlled by an instruction transferred via another component provided in the device, an external device, or the like. To. SW13 processes a part or all of the traffic of SW12 in the same manner as 1-1.

The control unit 14 is connected to an optical SW10, TRx11, SW12, SW13, an external server 16, an external OpS or the like (not shown), a controller (not shown), or an external device (not shown). The control unit 14 controls a component provided in the device, an external device, or the like, or transfers an instruction via the component provided in the device, the external device, or the like.

The external server 16 is connected to an optical SW10, TRx11, SW12, SW13, a control unit 14, an external OpS or the like (not shown), a controller (not shown), or an external device (not shown). The external server 16 controls other components provided in the device, an external device, or the like, or transfers instructions via the other components included in the device, the external device, or the like.

The components provided in the device are at least a part of the traffic of other components provided in the device, an external device, etc., or at least a part of a copy thereof, or at least a part of the traffic obtained by rewriting at least a part thereof, or a response to them. At least a part of the above may be transmitted to other components provided in the device, an external device, or the like.

In the communication system of the communication system configuration (3-2), TRx11 (λA to λA) and TRx11 that transmit and receive optical signals of the same wavelength instead of different wavelengths in addition to the configuration of the communication system configuration (3-1). (ΛB to λB), ..., TRx11 (λN to λN) are connected to SW12, respectively. Further, a plurality of TRx11 having at least a part of the different wavelengths TRx11 may be connected to the SW12. Others are similar.

The communication system of the communication system configuration (4-1) includes an optical SW10, TRx11, SW12, SW13, a proxy unit 15, and an external server 16 (FIG. 6).
The optical SW10 is connected to the ODN and TRx11. The optical SW10 performs autonomous control, is controlled by another component provided in the device, an external device, or the like, or is controlled by an instruction transferred via another component provided in the device, an external device, or the like. Will be done.

TRx11 that transmits and receives optical signals of different wavelengths (λA to λN) is connected to SW12. The TRx11 performs autonomous control, is controlled by another component provided in the device, an external device, or the like, or is controlled by an instruction transferred via another component provided in the device, an external device, or the like. To. TRx11 processes a part or all of the traffic of the optical SW10 or SW12 in the same manner as 1-1.

SW12 is connected to SW13. The SW12 performs autonomous control, is controlled by another component provided in the device, an external device, or the like, or is controlled by an instruction transferred via another component provided in the device, an external device, or the like. To. The SW12 processes a part or all of the traffic of TRx11 or SW13 in the same manner as 1-1.

The SW 13 is connected to the proxy unit 15 directly or via a concentrating SW or the like. The SW13 performs autonomous control, is controlled by another component provided in the device, an external device, or the like, or is controlled by an instruction transferred via another component provided in the device, an external device, or the like. To. The SW13 processes a part or all of the traffic of the optical SW10, the SW12, or the proxy unit 15 in the same manner as 1-1.

The proxy unit 15 is connected to a device (not shown) on the upper side directly or via a concentrating SW or the like. The proxy unit 15 performs autonomous control, is controlled by another component provided in the device, an external device, or the like, or is an instruction transferred via another component provided in the device, an external device, or the like. Be controlled. The proxy unit 15 processes a part or all of the traffic of the SW13 or the device on the upper side (not shown) in the same manner as 1-1.

The external server 16 is connected to the optical SW10, TRx11, SW12, SW13, the proxy unit 15, an external device, and the like. The external server 16 controls other components provided in the device, an external device, or the like, or transfers instructions via the other components included in the device, the external device, or the like.

The components provided in the device are at least a part of the traffic of other components provided in the device, an external device, etc., or at least a part of a copy thereof, or at least a part of the traffic obtained by rewriting at least a part thereof, or a response to them. At least a part of the above may be transmitted to other components provided in the device, an external device, or the like.

In the communication system of the communication system configuration (4-2), TRx11 (λA to λA) and TRx11 that transmit and receive optical signals of the same wavelength instead of different wavelengths in addition to the configuration of the communication system configuration (4-1). (ΛB to λB), ..., TRx11 (λN to λN) are connected to SW12, respectively. Further, a plurality of TRx11 having at least a part of the different wavelengths TRx11 may be connected to the SW12. Others are similar.

The communication system of the communication system configuration (5-1) includes an optical SW10, a TRx11, a SW12, a control unit 14, a proxy unit 15, and an external server 16 (FIG. 6).
The optical SW10 is connected to the ODN and TRx11. The optical SW10 performs autonomous control, is controlled by another component provided in the device, an external device, or the like, or is controlled by an instruction transferred via another component provided in the device, an external device, or the like. Will be done.

TRx11 that transmits and receives optical signals of different wavelengths (λA to λN) is connected to SW12. The TRx11 performs autonomous control, is controlled by another component provided in the device, an external device, or the like, or is controlled by an instruction transferred via another component provided in the device, an external device, or the like. To. The TRx11 performs the same processing as 1-1 on a part or all of the traffic of the optical SW10 or the SW12.

The SW 12 is connected to the proxy unit 15 directly or via a concentrating SW or the like. The SW12 performs autonomous control, is controlled by another component provided in the device, an external device, or the like, or is controlled by an instruction transferred via another component provided in the device, an external device, or the like. To. The SW12 processes a part or all of the traffic of the TRx 11 or the proxy unit 15 in the same manner as 1-1.

The control unit 14 is connected to an optical SW10, TRx11, SW12, a proxy unit 15, an external server 16, an external OpS or the like (not shown), a controller (not shown), or an external device (not shown). The control unit 14 controls a component provided in the device, an external device, or the like, or transfers an instruction via the component provided in the device, the external device, or the like.

The proxy unit 15 is connected to a device (not shown) on the upper side directly or via a concentrating SW or the like. The proxy unit 15 performs autonomous control, is controlled by another component provided in the device, an external device, or the like, or is an instruction transferred via another component provided in the device, an external device, or the like. Be controlled. The proxy unit 15 processes a part or all of the traffic of the SW12 or the device on the upper side (not shown) in the same manner as 1-1.

The external server 16 is connected to an optical SW10, TRx11, SW12, a control unit 14, a proxy unit 15, an external OpS or the like (not shown), a controller (not shown), or an external device (not shown). The external server 16 controls other components provided in the device, an external device, or the like, or transfers instructions via the other components included in the device, the external device, or the like.

The components provided in the device are at least a part of the traffic of other components provided in the device, an external device, etc., or at least a part of a copy thereof, or at least a part of the traffic obtained by rewriting at least a part thereof, or a response to them. At least a part of the above may be transmitted to other components provided in the device, an external device, or the like.

In the communication system of the communication system configuration (5-2), TRx11 (λA to λA) and TRx11 that transmit and receive optical signals of the same wavelength instead of different wavelengths in addition to the configuration of the communication system configuration (5-1). (ΛB to λB), ..., TRx11 (λN to λN) are connected to SW12, respectively. Further, a plurality of TRx11 having at least a part of the different wavelengths TRx11 may be connected to the SW12. Others are similar.

The communication system of the communication system configuration (6-1) includes an optical SW10, TRx11, SW13, a control unit 14, a proxy unit 15, and an external server 16 (FIG. 6).
The optical SW10 is connected to the ODN and TRx11. The optical SW10 performs autonomous control, is controlled by another component provided in the device, an external device, or the like, or is controlled by an instruction transferred via another component provided in the device, an external device, or the like. Will be done.

TRx11 that transmits and receives optical signals of different wavelengths (λA to λN) is connected to SW13. The receiving unit 11 (TRx) performs autonomous control, is controlled by another component provided in the device, an external device, or the like, or is transferred via another component provided in the device, an external device, or the like. It is controlled by the instructions. TRx11 processes a part or all of the traffic of the optical SW10 or SW13 in the same manner as 1-1.

The SW 13 is connected to the proxy unit 15 directly or via a concentrating SW or the like. The SW13 performs autonomous control, is controlled by another component provided in the device, an external device, or the like, or is controlled by an instruction transferred via another component provided in the device, an external device, or the like. To. The SW 13 processes a part or all of the traffic of the TRx 11 or the proxy unit 15 in the same manner as 1-1.

The control unit 14 is connected to an optical SW10, TRx11, SW13, a proxy unit 15, an external server 16, an external device, or the like. The control unit 14 controls a component provided in the device, an external device, or the like, or transfers an instruction via the component provided in the device, the external device, or the like.
The proxy unit 15 is connected to a device (not shown) on the upper side directly or via a concentrating SW or the like. The proxy unit 15 performs autonomous control, is controlled by another component provided in the device, an external device, or the like, or is an instruction transferred via another component provided in the device, an external device, or the like. Be controlled. The proxy unit 15 processes a part or all of the traffic of the SW13 or the device on the upper side (not shown) in the same manner as 1-1.

The external server 16 is connected to an optical SW10, TRx11, SW13, a control unit 14, a proxy unit 15, an external OpS or the like (not shown), a controller (not shown), or an external device (not shown). The external server 16 controls other components provided in the device, an external device, or the like, or transfers instructions via the other components included in the device, the external device, or the like.

The components provided in the device are at least a part of the traffic of other components provided in the device, an external device, etc., or at least a part of a copy thereof, or at least a part of the traffic obtained by rewriting at least a part thereof, or a response to them. At least a part of the above may be transmitted to other components provided in the device, an external device, or the like.

In the communication system of the communication system configuration (6-2), TRx11 (λA to λA) and TRx11 that transmit and receive optical signals of the same wavelength instead of different wavelengths in addition to the configuration of the communication system configuration (6-1). (ΛB to λB), ..., TRx11 (λN to λN) are connected to SW13, respectively. Further, a plurality of TRx11 having at least a part of the different wavelengths of TRx11 may be connected to the SW13. Others are similar.

The communication system of the communication system configuration (7-1) includes an optical SW10, a TRx11, a SW12, a SW13, and a control unit 14 (FIG. 6).
The optical SW10 is connected to the ODN and TRx11. The optical SW10 performs autonomous control, is controlled by another component provided in the device, an external device, or the like, or is controlled by an instruction transferred via another component provided in the device, an external device, or the like. Will be done.

TRx11 that transmits and receives optical signals of different wavelengths (λA to λN) is connected to SW12. The TRx11 performs autonomous control, is controlled by another component provided in the device, an external device, or the like, or is controlled by an instruction transferred via another component provided in the device, an external device, or the like. To. TRx11 processes a part or all of the traffic of the optical SW10 or SW12 in the same manner as 1-1.

SW12 is connected to SW13. The SW12 performs autonomous control, is controlled by another component provided in the device, an external device, or the like, or is controlled by an instruction transferred via another component provided in the device, an external device, or the like. To. The SW12 processes a part or all of the traffic of TRx11 or SW13 in the same manner as 1-1.

The SW13 is connected to a device (not shown) on the upper side directly or via a concentrating SW or the like. The SW13 performs autonomous control, is controlled by another component provided in the device, an external device, or the like, or is controlled by an instruction transferred via another component provided in the device, an external device, or the like. To. The SW13 processes a part or all of the traffic of the SW12 or the device on the upper side (not shown) in the same manner as 1-1.

The control unit 14 is connected to an optical SW10, TRx11, SW12, SW13, an external OpS or the like (not shown), a controller (not shown), or an external device (not shown). The control unit 14 controls a component provided in the device, an external device, or the like, or transfers an instruction via the component provided in the device, the external device, or the like.

The components provided in the device are at least a part of the traffic of other components provided in the device, an external device, etc., or at least a part of a copy thereof, or at least a part of the traffic obtained by rewriting at least a part thereof, or a response to them. At least a part of the above may be transmitted to other components provided in the device, an external device, or the like.

In the communication system of the communication system configuration (7-2), TRx11 (λA to λA) and TRx11 that transmit and receive optical signals of the same wavelength instead of different wavelengths in addition to the configuration of the communication system configuration (7-1). (ΛB to λB), ..., TRx11 (λN to λN) are connected to SW12, respectively. Further, a plurality of TRx11 having at least a part of the different wavelengths TRx11 may be connected to the SW12. Others are similar.

The communication system of the communication system configuration (8-1) includes an optical SW10, a TRx11, a SW12, a SW13, and a proxy unit 15 (FIG. 6).
The optical SW10 is connected to the ODN and TRx11. The optical SW10 performs autonomous control, is controlled by another component provided in the device, an external device, or the like, or is controlled by an instruction transferred via another component provided in the device, an external device, or the like. Will be done.

TRx11 that transmits and receives optical signals of different wavelengths (λA to λN) is connected to SW12. The TRx11 performs autonomous control, is controlled by another component provided in the device, an external device, or the like, or is controlled by an instruction transferred via another component provided in the device, an external device, or the like. To. TRx11 processes a part or all of the traffic of the optical SW10 or SW12 in the same manner as 1-1.

SW12 is connected to SW13. The SW12 performs autonomous control, is controlled by another component provided in the device, an external device, or the like, or is controlled by an instruction transferred via another component provided in the device, an external device, or the like. To. The SW12 processes a part or all of the traffic of TRx11 or SW13 in the same manner as 1-1.

The SW 13 is connected to the proxy unit 15 directly or via a concentrating SW or the like. The SW13 performs autonomous control, is controlled by another component provided in the device, an external device, or the like, or is controlled by an instruction transferred via another component provided in the device, an external device, or the like. To. The SW 13 processes a part or all of the traffic of the SW 12 or the proxy unit 15 in the same manner as 1-1.

The proxy unit 15 is connected to a device (not shown) on the upper side directly or via a concentrating SW or the like. The proxy unit 15 performs autonomous control, is controlled by another component provided in the device, an external device, or the like, or is an instruction transferred via another component provided in the device, an external device, or the like. Be controlled. The proxy unit 15 processes a part or all of the traffic of the SW13 or the device on the upper side (not shown) in the same manner as 1-1.

The components provided in the device are at least a part of the traffic of other components provided in the device, an external device, etc., or at least a part of a copy thereof, or at least a part of the traffic obtained by rewriting at least a part thereof, or a response to them. At least a part of the above may be transmitted to other components provided in the device, an external device, or the like.

In the communication system of the communication system configuration (8-2), TRx11 (λA to λA) and TRx11 that transmit and receive optical signals of the same wavelength instead of different wavelengths in addition to the configuration of the communication system configuration (8-1). (ΛB to λB), ..., TRx11 (λN to λN) are connected to SW12, respectively. Further, a plurality of TRx11 having at least a part of the different wavelengths TRx11 may be connected to the SW12. Others are similar.

The communication system of the communication system configuration (9-1) includes an optical SW10, a TRx11, a SW12, a control unit 14, and a proxy unit 15 (FIG. 6).
The optical SW10 is connected to the ODN and TRx11. The optical SW10 performs autonomous control, is controlled by another component provided in the device, an external device, or the like, or is controlled by an instruction transferred via another component provided in the device, an external device, or the like. Will be done.

TRx11 that transmits and receives optical signals of different wavelengths (λA to λN) is connected to SW12. The TRx11 performs autonomous control, is controlled by another component provided in the device, an external device, or the like, or is controlled by an instruction transferred via another component provided in the device, an external device, or the like. To. TRx11 processes a part or all of the traffic of the optical SW10 or SW12 in the same manner as 1-1.

The SW 12 is connected to the proxy unit 15 directly or via a concentrating SW or the like. The SW12 performs autonomous control, is controlled by another component provided in the device, an external device, or the like, or is controlled by an instruction transferred via another component provided in the device, an external device, or the like. To. The SW12 processes a part or all of the traffic of the TRx 11 or the proxy unit 15 in the same manner as 1-1.

The control unit 14 is connected to an optical SW10, TRx11, SW12, a proxy unit 15, an external OpS or the like (not shown), a controller (not shown), or an external device (not shown). The control unit 14 controls a component provided in the device, an external device, or the like, or transfers an instruction via the component provided in the device, the external device, or the like.

The proxy unit 15 is connected to a device (not shown) on the upper side directly or via a concentrating SW or the like. The proxy unit 15 performs autonomous control, is controlled by another component provided in the device, an external device, or the like, or is an instruction transferred via another component provided in the device, an external device, or the like. Be controlled. The proxy unit 15 processes a part or all of the traffic of the SW12 or the device on the upper side (not shown) in the same manner as 1-1.

The components provided in the device are at least a part of the traffic of other components provided in the device, an external device, etc., or at least a part of a copy thereof, or at least a part of the traffic obtained by rewriting at least a part thereof, or a response to them. At least a part of the above may be transmitted to other components provided in the device, an external device, or the like.

In the communication system of the communication system configuration (9-2), TRx11 (λA to λA) and TRx11 that transmit and receive optical signals of the same wavelength instead of different wavelengths in addition to the configuration of the communication system configuration (9-1). (ΛB to λB), ..., TRx11 (λN to λN) are connected to SW12, respectively. Further, a plurality of TRx11 having at least a part of the different wavelengths TRx11 may be connected to the SW12. Others are similar.

The communication system of the communication system configuration (10-1) includes an optical SW10, a TRx11, a SW13, a control unit 14, and a proxy unit 15 (FIG. 6).
The optical SW10 is connected to the ODN and TRx11. The optical SW10 performs autonomous control, is controlled by another component provided in the device, an external device, or the like, or is controlled by an instruction transferred via another component provided in the device, an external device, or the like. Will be done.

TRx11 that transmits and receives optical signals of different wavelengths (λA to λN) is connected to SW13. The TRx11 performs autonomous control, is controlled by another component provided in the device, an external device, or the like, or is controlled by an instruction transferred via another component provided in the device, an external device, or the like. To. TRx11 processes a part or all of the traffic of the optical SW10 or SW13 in the same manner as 1-1.

The SW 13 is connected to the proxy unit 15 directly or via a concentrating SW or the like. The SW13 performs autonomous control, is controlled by another component provided in the device, an external device, or the like, or is controlled by an instruction transferred via another component provided in the device, an external device, or the like. To. The SW 13 processes a part or all of the traffic of the TRx 11 or the proxy unit 15 in the same manner as 1-1.

The control unit 14 is connected to an optical SW10, TRx11, SW13, a proxy unit 15, an external device, or the like. The control unit 14 controls a component provided in the device, an external device, or the like, or transfers an instruction via the component provided in the device, the external device, or the like.

The proxy unit 15 is connected to a device (not shown) on the upper side directly or via a concentrating SW or the like. The proxy unit 15 performs autonomous control, is controlled by another component provided in the device, an external device, or the like, or is an instruction transferred via another component provided in the device, an external device, or the like. Be controlled. The proxy unit 15 processes a part or all of the traffic of the SW13 or the device on the upper side (not shown) in the same manner as 1-1.

The components provided in the device are at least a part of the traffic of other components provided in the device, an external device, etc., or at least a part of a copy thereof, or at least a part of the traffic obtained by rewriting at least a part thereof, or a response to them. At least a part of the above may be transmitted to other components provided in the device, an external device, or the like.

In the communication system of the communication system configuration (10-2), TRx11 (λA to λA) and TRx11 that transmit and receive optical signals of the same wavelength instead of different wavelengths in addition to the configuration of the communication system configuration (10-1). (ΛB to λB), ..., TRx11 (λN to λN) are connected to SW13, respectively. Further, a plurality of TRx11 having at least a part of the different wavelengths of TRx11 may be connected to the SW13. Others are similar.

The communication system of the communication system configuration (11-1) includes an optical SW10, a TRx11, a SW12, a SW13, and an external server 16 (FIG. 6).
The optical SW10 is connected to the ODN and TRx11. The optical SW10 performs autonomous control, is controlled by another component provided in the device, an external device, or the like, or is controlled by an instruction transferred via another component provided in the device, an external device, or the like. Will be done.

TRx11 that transmits and receives optical signals of different wavelengths (λA to λN) is connected to SW12. The TRx11 performs autonomous control, is controlled by another component provided in the device, an external device, or the like, or is controlled by an instruction transferred via another component provided in the device, an external device, or the like. To. TRx11 processes a part or all of the traffic of the optical SW10 or SW12 in the same manner as 1-1.

SW12 is connected to SW13. The SW12 performs autonomous control, is controlled by another component provided in the device, an external device, or the like, or is controlled by an instruction transferred via another component provided in the device, an external device, or the like. To. The SW12 processes a part or all of the traffic of TRx11 or SW13 in the same manner as 1-1.

The SW13 is connected to a device (not shown) on the upper side directly or via a concentrating SW or the like. The SW13 performs autonomous control, is controlled by another component provided in the device, an external device, or the like, or is controlled by an instruction transferred via another component provided in the device, an external device, or the like. To. The SW13 processes a part or all of the traffic of the SW12 or the device on the upper side (not shown) in the same manner as 1-1.

The external server 16 is connected to an optical SW10, TRx11, SW12, SW13, an external OpS or the like (not shown), a controller (not shown), or an external device (not shown). The external server 16 controls a component provided in the device, an external device, or the like, or transfers an instruction via the component provided in the device, the external device, or the like.

The components provided in the device are at least a part of the traffic of other components provided in the device, an external device, etc., or at least a part of a copy thereof, or at least a part of the traffic obtained by rewriting at least a part thereof, or a response to them. At least a part of the above may be transmitted to other components provided in the device, an external device, or the like.

In the communication system of the communication system configuration (11-2), TRx11 (λA to λA) and TRx11 that transmit and receive optical signals of the same wavelength instead of different wavelengths in addition to the configuration of the communication system configuration (11-1). (ΛB to λB), ..., TRx11 (λN to λN) are connected to SW12, respectively. Further, a plurality of TRx11 having at least a part of the different wavelengths TRx11 may be connected to the SW12. Others are similar.

The communication system of the communication system configuration (12-1) includes an optical SW10, a TRx11, a SW12, a control unit 14, and an external server 16 (FIG. 6).
The optical SW10 is connected to the ODN and TRx11. The optical SW10 performs autonomous control, is controlled by another component provided in the device, an external device, or the like, or is controlled by an instruction transferred via another component provided in the device, an external device, or the like. Will be done.

TRx11 that transmits and receives optical signals of different wavelengths (λA to λN) is connected to SW12. The TRx11 performs autonomous control, is controlled by another component provided in the device, an external device, or the like, or is controlled by an instruction transferred via another component provided in the device, an external device, or the like. To. TRx11 processes a part or all of the traffic of the optical SW10 or SW12 in the same manner as 1-1.

The SW12 is connected to a device (not shown) on the upper side directly or via a concentrating SW or the like. The SW12 performs autonomous control, is controlled by another component provided in the device, an external device, or the like, or is controlled by an instruction transferred via another component provided in the device, an external device, or the like. To. The SW12 processes a part or all of the traffic of the TRx11 or the upper device (not shown) in the same manner as 1-1.

The control unit 14 is connected to an optical SW10, TRx11, SW12, an external server 16, an external OpS or the like (not shown), a controller (not shown), or an external device (not shown). The control unit 14 controls a component provided in the device, an external device, or the like, or transfers an instruction via the component provided in the device, the external device, or the like.

The external server 16 is connected to an optical SW10, TRx11 or SW12, a control unit 14, an external device, or the like. The external server 16 controls other configurations provided in the device or transfers instructions through the other configurations provided in the device.

The components provided in the device are at least a part of the traffic of other components provided in the device, an external device, etc., or at least a part of a copy thereof, or at least a part of the traffic obtained by rewriting at least a part thereof, or a response to them. At least a part of the above may be transmitted to other components provided in the device, an external device, or the like.

In the communication system of the communication system configuration (12-2), TRx11 (λA to λA) and TRx11 that transmit and receive optical signals of the same wavelength instead of different wavelengths in addition to the configuration of the communication system configuration (12-1). (ΛB to λB), ..., TRx11 (λN to λN) are connected to SW12, respectively. Further, a plurality of TRx11 having at least a part of the different wavelengths TRx11 may be connected to the SW12. Others are similar.

The communication system of the communication system configuration (13-1) includes an optical SW10, a TRx11, a SW13, a control unit 14, and an external server 16 (FIG. 6).
The optical SW10 is connected to the ODN and TRx11. The optical SW10 performs autonomous control, is controlled by another component provided in the device, an external device, or the like, or is controlled by an instruction transferred via another component provided in the device, an external device, or the like. Will be done.

TRx11 that transmits and receives optical signals of different wavelengths (λA to λN) is connected to SW13. The TRx11 performs autonomous control, is controlled by another component provided in the device, an external device, or the like, or is controlled by an instruction transferred via another component provided in the device, an external device, or the like. To. TRx11 processes a part or all of the traffic of the optical SW10 or SW13 in the same manner as 1-1.

The SW13 is connected to a device (not shown) on the upper side directly or via a concentrating SW or the like. The SW13 performs autonomous control, is controlled by another component provided in the device, an external device, or the like, or is controlled by an instruction transferred via another component provided in the device, an external device, or the like. To. The SW13 processes a part or all of the traffic of the TRx11 or the device on the upper side (not shown) in the same manner as 1-1.

The control unit 14 is connected to an optical SW10, TRx11 or SW13, an external server 16, an external device, or the like. The control unit 14 controls a component provided in the device, an external device, or the like, or transfers an instruction via the component provided in the device, the external device, or the like.

The external server 16 is connected to an optical SW10, TRx11 or SW13, a control unit 14, an external device, or the like. The external server 16 controls other components provided in the device, an external device, or the like, or transfers instructions via the other components included in the device, the external device, or the like.

The components provided in the device are at least a part of the traffic of other components provided in the device, an external device, etc., or at least a part of a copy thereof, or at least a part of the traffic obtained by rewriting at least a part thereof, or a response to them. At least a part of the above may be transmitted to other components provided in the device, an external device, or the like.

In the communication system of the communication system configuration (13-2), TRx11 (λA to λA) and TRx11 that transmit and receive optical signals of the same wavelength instead of different wavelengths in addition to the configuration of the communication system configuration (13-1). (ΛB to λB), ..., TRx11 (λN to λN) are connected to SW13, respectively. Further, a plurality of TRx11 having at least a part of the different wavelengths of TRx11 may be connected to the SW13. Others are similar.

The communication system of the communication system configuration (14-1) includes an optical SW10, a TRx11, a SW12, a proxy unit 15, and an external server 16 (FIG. 6).
The optical SW10 is connected to the ODN and TRx11. The optical SW10 performs autonomous control, is controlled by another component provided in the device, an external device, or the like, or is controlled by an instruction transferred via another component provided in the device, an external device, or the like. Will be done.

TRx11 that transmits and receives optical signals of different wavelengths (λA to λN) is connected to SW12. The TRx11 performs autonomous control, is controlled by another component provided in the device, an external device, or the like, or is controlled by an instruction transferred via another component provided in the device, an external device, or the like. To. TRx11 processes a part or all of the traffic of the optical SW10 or SW12 in the same manner as 1-1.

The SW 12 is connected to the proxy unit 15 directly or via a concentrating SW or the like. The SW12 performs autonomous control, is controlled by another component provided in the device, an external device, or the like, or is controlled by an instruction transferred via another component provided in the device, an external device, or the like. To. The SW12 processes a part or all of the traffic of the TRx 11 or the proxy unit 15 in the same manner as 1-1.

The proxy unit 15 performs autonomous control, is controlled by another component provided in the device, an external device, or the like, or is an instruction transferred via another component provided in the device, an external device, or the like. Be controlled. The proxy unit 15 processes a part or all of the traffic of the SW12 or the device on the upper side (not shown) in the same manner as 1-1.

The external server 16 is connected to an optical SW10, TRx11, SW12, a proxy unit 15, an external OpS or the like (not shown), a controller (not shown), or an external device (not shown). The external server 16 controls other components provided in the device, an external device, or the like, or transfers instructions via the other components included in the device, the external device, or the like.

The components provided in the device are at least a part of the traffic of other components provided in the device, an external device, etc., or at least a part of a copy thereof, or at least a part of the traffic obtained by rewriting at least a part thereof, or a response to them. At least a part of the above may be transmitted to other components provided in the device, an external device, or the like.

In the communication system of the communication system configuration (14-2), TRx11 (λA to λA) and TRx11 that transmit and receive optical signals of the same wavelength instead of different wavelengths in addition to the configuration of the communication system configuration (14-1). (ΛB to λB), ..., TRx11 (λN to λN) are connected to SW12, respectively. Further, a plurality of TRx11 having at least a part of the different wavelengths TRx11 may be connected to the SW12. Others are similar.

The communication system of the communication system configuration (15-1) includes an optical SW10, a TRx11, a SW13, a proxy unit 15, and an external server 16 (FIG. 6).
The optical SW10 is connected to the ODN and TRx11. The optical SW10 performs autonomous control, is controlled by another component provided in the device, an external device, or the like, or is controlled by an instruction transferred via another component provided in the device, an external device, or the like. Will be done.

TRx11 that transmits and receives optical signals of different wavelengths (λA to λN) is connected to SW13. The TRx11 performs autonomous control, is controlled by another component provided in the device, an external device, or the like, or is controlled by an instruction transferred via another component provided in the device, an external device, or the like. To. TRx11 processes a part or all of the traffic of the optical SW10 or SW13 in the same manner as 1-1.

The SW 13 is connected to the proxy unit 15 directly or via a concentrating SW or the like. The SW13 performs autonomous control, is controlled by another component provided in the device, an external device, or the like, or is controlled by an instruction transferred via another component provided in the device, an external device, or the like. To. The SW 13 processes a part or all of the traffic of the TRx 11 or the proxy unit 15 in the same manner as 1-1.

The proxy unit 15 performs autonomous control, is controlled by another component provided in the device, an external device, or the like, or is an instruction transferred via another component provided in the device, an external device, or the like. Be controlled. The proxy unit 15 processes a part or all of the traffic of the SW13 or the device on the upper side (not shown) in the same manner as 1-1.

The external server 16 is connected to the optical SW10, TRx11, SW13, the proxy unit 15, an external device, and the like. The external server 16 controls other components provided in the device, an external device, or the like, or transfers instructions via the other components included in the device, the external device, or the like.

The components provided in the device are at least a part of the traffic of other components provided in the device, an external device, etc., or at least a part of a copy thereof, or at least a part of the traffic obtained by rewriting at least a part thereof, or a response to them. At least a part of the above may be transmitted to other components provided in the device, an external device, or the like.

In the communication system of the communication system configuration (15-2), TRx11 (λA to λA) and TRx11 that transmit and receive optical signals of the same wavelength instead of different wavelengths in addition to the configuration of the communication system configuration (15-1). (ΛB to λB), ..., TRx11 (λN to λN) are connected to SW13, respectively. Further, a plurality of TRx11 having at least a part of the different wavelengths of TRx11 may be connected to the SW13. Others are similar.

The communication system of the communication system configuration (16-1) includes an optical SW10, TRx11, a control unit 14, a proxy unit 15, and an external server 16 (FIG. 6).
The optical SW10 is connected to the ODN and TRx11. The optical SW10 performs autonomous control, is controlled by another component provided in the device, an external device, or the like, or is controlled by an instruction transferred via another component provided in the device, an external device, or the like. Will be done.

TRx11 that transmits and receives optical signals of different wavelengths (λA to λN) is connected to the proxy unit 15 directly or via a concentrating SW or the like. The TRx11 performs autonomous control, is controlled by another component provided in the device, an external device, or the like, or is controlled by an instruction transferred via another component provided in the device, an external device, or the like. To. The TRx11 processes a part or all of the traffic of the optical SW10 or the proxy unit 15 in the same manner as 1-1.

The control unit 14 is connected to an optical SW10, TRx11, a proxy unit 15, an external server 16, an external OpS or the like (not shown), a controller (not shown), or an external device (not shown). The control unit 14 controls a component provided in the device, an external device, or the like, or transfers an instruction via the component provided in the device, the external device, or the like.

The proxy unit 15 is connected to a device (not shown) on the upper side directly or via a concentrating SW or the like. The proxy unit 15 performs autonomous control, is controlled by another component provided in the device, an external device, or the like, or is an instruction transferred via another component provided in the device, an external device, or the like. Be controlled. The proxy unit 15 processes a part or all of the traffic of TRx11 or the device on the upper side (not shown) in the same manner as 1-1.

The external server 16 is connected to an optical SW10, TRx11, a control unit 14, a proxy unit 15, an external OpS or the like (not shown), a controller (not shown), or an external device (not shown). The external server 16 controls other components provided in the device, an external device, or the like, or transfers instructions via the other components included in the device, the external device, or the like.

The components provided in the device are at least a part of the traffic of other components provided in the device, an external device, etc., or at least a part of a copy thereof, or at least a part of the traffic obtained by rewriting at least a part thereof, or a response to them. At least a part of the above may be transmitted to other components provided in the device, an external device, or the like.

In the communication system of the communication system configuration (16-2), TRx11 (λA to λA) and TRx11 that transmit and receive optical signals of the same wavelength instead of different wavelengths in addition to the configuration of the communication system configuration (16-1). (ΛB to λB), ..., TRx11 (λN to λN) are connected to the proxy unit 15 directly or via a concentrating SW or the like, respectively. Further, a plurality of TRx11 having at least a part of the different wavelengths of TRx11 may be directly connected to the proxy unit 15 or via a concentrating SW or the like. Others are similar.

The communication system of the communication system configuration (17-1) includes an optical SW10, TRx11, SW12, and SW13 (FIG. 6).
The optical SW10 is connected to the ODN and TRx11. The optical SW10 performs autonomous control, is controlled by another component provided in the device, an external device, or the like, or is controlled by an instruction transferred via another component provided in the device, an external device, or the like. Will be done.

TRx11 that transmits and receives optical signals of different wavelengths (λA to λN) is connected to SW12. The TRx11 performs autonomous control, is controlled by another component provided in the device, an external device, or the like, or is controlled by an instruction transferred via another component provided in the device, an external device, or the like. To. TRx11 processes a part or all of the traffic of the optical SW10 or SW12 in the same manner as 1-1.

SW12 is connected to SW13. The SW12 performs autonomous control, is controlled by another component provided in the device, an external device, or the like, or is controlled by an instruction transferred via another component provided in the device, an external device, or the like. To. The SW12 processes a part or all of the traffic of TRx11 or SW13 in the same manner as 1-1.

The SW13 is connected to a device (not shown) on the upper side directly or via a concentrating SW or the like. The SW13 performs autonomous control, is controlled by another component provided in the device, an external device, or the like, or is controlled by an instruction transferred via another component provided in the device, an external device, or the like. To. The SW13 processes a part or all of the traffic of the SW12 or the device on the upper side (not shown) in the same manner as 1-1.

The components provided in the device are at least a part of the traffic of other components provided in the device, an external device, etc., or at least a part of a copy thereof, or at least a part of the traffic obtained by rewriting at least a part thereof, or a response to them. At least a part of the above may be transmitted to other components provided in the device, an external device, or the like.

In the communication system of the communication system configuration (17-2), TRx11 (λA to λA) and TRx11 that transmit and receive optical signals of the same wavelength instead of different wavelengths in addition to the configuration of the communication system configuration (17-1). (ΛB to λB), ..., TRx11 (λN to λN) are connected to SW12, respectively. Further, a plurality of TRx11 having at least a part of the different wavelengths TRx11 may be connected to the SW12. Others are similar.

The communication system of the communication system configuration (18-1) includes an optical SW10, a TRx11, a SW12, and a control unit 14 (FIG. 6).
The optical SW10 is connected to the ODN and TRx11. The optical SW10 performs autonomous control, is controlled by another component provided in the device, an external device, or the like, or is controlled by an instruction transferred via another component provided in the device, an external device, or the like. Will be done.

TRx11 that transmits and receives optical signals of different wavelengths (λA to λN) is connected to SW12. The TRx11 performs autonomous control, is controlled by another component provided in the device, an external device, or the like, or is controlled by an instruction transferred via another component provided in the device, an external device, or the like. To. TRx11 processes a part or all of the traffic of the optical SW10 or SW12 in the same manner as 1-1.

The SW12 is connected to a device (not shown) on the upper side directly or via a concentrating SW or the like. The SW12 performs autonomous control, is controlled by another component provided in the device, an external device, or the like, or is controlled by an instruction transferred via another component provided in the device, an external device, or the like. To. The SW12 processes a part or all of the traffic of the TRx11 or the upper device (not shown) in the same manner as 1-1.

The control unit 14 is connected to an optical SW10, TRx11, SW12, an external OpS or the like (not shown), a controller (not shown), or an external device (not shown). The control unit 14 controls a component provided in the device, an external device, or the like, or transfers an instruction via the component provided in the device, the external device, or the like.

The components provided in the device are a part of the traffic provided in the device, a part or all of the traffic of the external device, or a copy thereof, and a part of the received traffic, all of the traffic received, and the traffic received. The response to the partially or completely rewritten traffic or the received traffic may be transmitted to other components provided in the device, an external device, or the like.

In the communication system of the communication system configuration (18-2), TRx11 (λA to λA) and TRx11 that transmit and receive optical signals of the same wavelength instead of different wavelengths in addition to the configuration of the communication system configuration (18-1). (ΛB to λB), ..., TRx11 (λN to λN) are connected to SW12, respectively. Further, a plurality of TRx11 having at least a part of the different wavelengths TRx11 may be connected to the SW12. Others are similar.

The communication system of the communication system configuration (19-1) includes an optical SW10, a TRx11, a SW13, and a control unit 14 (FIG. 6).
The optical SW10 is connected to the ODN and TRx11. The optical SW10 performs autonomous control, is controlled by another component provided in the device, an external device, or the like, or is controlled by an instruction transferred via another component provided in the device, an external device, or the like. Will be done.

TRx11 that transmits and receives optical signals of different wavelengths (λA to λN) is connected to SW13. The TRx11 performs autonomous control, is controlled by another component provided in the device, an external device, or the like, or is controlled by an instruction transferred via another component provided in the device, an external device, or the like. To. TRx11 processes a part or all of the traffic of the optical SW10 or SW13 in the same manner as 1-1.

The SW13 is connected to a device (not shown) on the upper side directly or via a concentrating SW or the like. The SW13 performs autonomous control, is controlled by another component provided in the device, an external device, or the like, or is controlled by an instruction transferred via another component provided in the device, an external device, or the like. To. The SW13 processes a part or all of the traffic of the TRx11 or the upper device (not shown) in the same manner as 1-1.

The control unit 14 is connected to an optical SW10, TRx11, SW13, an external OpS or the like (not shown), a controller (not shown), or an external device (not shown). The control unit 14 controls a component provided in the device, an external device, or the like, or transfers an instruction via the component provided in the device, the external device, or the like.

The components provided in the device are a part of the traffic provided in the device, a part or all of the traffic of the external device, or a copy thereof, and a part of the received traffic, all of the traffic received, and the traffic received. The response to the partially or completely rewritten traffic or the received traffic may be transmitted to other components provided in the device, an external device, or the like.

In the communication system of the communication system configuration (19-2), TRx11 (λA to λA) and TRx11 that transmit and receive optical signals of the same wavelength instead of different wavelengths in addition to the configuration of the communication system configuration (19-1). (ΛB to λB), ..., TRx11 (λN to λN) are connected to SW13, respectively. Further, a plurality of TRx11 having at least a part of the different wavelengths of TRx11 may be connected to the SW13. Others are similar.

The communication system of the communication system configuration (20-1) includes an optical SW10, a TRx11, a SW12, and a proxy unit 15 (FIG. 6).
The optical SW10 is connected to the ODN and TRx11. The optical SW10 performs autonomous control, is controlled by another component provided in the device, an external device, or the like, or is controlled by an instruction transferred via another component provided in the device, an external device, or the like. Will be done.

TRx11 that transmits and receives optical signals of different wavelengths (λA to λN) is connected to SW12. The TRx11 performs autonomous control, is controlled by another component provided in the device, an external device, or the like, or is controlled by an instruction transferred via another component provided in the device, an external device, or the like. To. TRx11 processes a part or all of the traffic of the optical SW10 or SW12 in the same manner as 1-1.

The SW 12 is connected to the proxy unit 15 directly or via a concentrating SW or the like. The SW12 performs autonomous control, is controlled by another component provided in the device, an external device, or the like, or is controlled by an instruction transferred via another component provided in the device, an external device, or the like. To. The SW12 processes a part or all of the traffic of the TRx 11 or the proxy unit 15 in the same manner as 1-1.

The proxy unit 15 is connected to a device (not shown) on the upper side directly or via a concentrating SW or the like. The proxy unit 15 performs autonomous control, is controlled by another component provided in the device, an external device, or the like, or is an instruction transferred via another component provided in the device, an external device, or the like. Be controlled. The proxy unit 15 processes a part or all of the traffic of the SW12 or the device on the upper side (not shown) in the same manner as 1-1.

The components provided in the device are a part of the traffic provided in the device, a part or all of the traffic of the external device, or a copy thereof, and a part of the received traffic, all of the traffic received, and the traffic received. The response to the partially or completely rewritten traffic or the received traffic may be transmitted to other components provided in the device, an external device, or the like.

In the communication system of the communication system configuration (20-2), TRx11 (λA to λA) and TRx11 that transmit and receive optical signals of the same wavelength instead of different wavelengths in addition to the configuration of the communication system configuration (20-1). (ΛB to λB), ..., TRx11 (λN to λN) are connected to SW12, respectively. Further, a plurality of TRx11 having at least a part of the different wavelengths TRx11 may be connected to the SW12. Others are similar.

The communication system of the communication system configuration (21-1) includes an optical SW10, a TRx11, a SW13, and a proxy unit 15 (FIG. 6).
The optical SW10 is connected to the ODN and TRx11. The optical SW10 performs autonomous control, is controlled by another component provided in the device, an external device, or the like, or is controlled by an instruction transferred via another component provided in the device, an external device, or the like. Will be done.

TRx11 that transmits and receives optical signals of different wavelengths (λA to λN) is connected to SW13. The TRx11 performs autonomous control, is controlled by another component provided in the device, an external device, or the like, or is controlled by an instruction transferred via another component provided in the device, an external device, or the like. To. TRx11 processes a part or all of the traffic of the optical SW10 or SW13 in the same manner as 1-1.

The SW 13 is connected to the proxy unit 15 directly or via a concentrating SW or the like. The SW13 performs autonomous control, is controlled by another component provided in the device, an external device, or the like, or is controlled by an instruction transferred via another component provided in the device, an external device, or the like. To. The SW 13 processes a part or all of the traffic of the TRx 11 or the proxy unit 15 in the same manner as 1-1.

The proxy unit 15 is connected to a device (not shown) on the upper side directly or via a concentrating SW or the like. The proxy unit 15 performs autonomous control, is controlled by another component provided in the device, an external device, or the like, or is controlled by an instruction transferred via another component provided in the device, an external device, or the like. Will be done. The proxy unit 15 processes a part or all of the traffic of the SW13 or the device on the upper side (not shown) in the same manner as 1-1.

The components provided in the device are a part of the traffic provided in the device, a part or all of the traffic of the external device, or a copy thereof, and a part of the received traffic, all of the traffic received, and the traffic received. The response to the partially or completely rewritten traffic or the received traffic may be transmitted to other components provided in the device, an external device, or the like.

In the communication system of the communication system configuration (21-2), TRx11 (λA to λA) and TRx11 that transmit and receive optical signals of the same wavelength instead of different wavelengths in addition to the configuration of the communication system configuration (21-1). (ΛB to λB), ..., TRx11 (λN to λN) are connected to SW13, respectively. Further, a plurality of TRx11 having at least a part of the different wavelengths of TRx11 may be connected to the SW13. Others are similar.

The communication system of the communication system configuration (22-1) includes an optical SW10, TRx11, a control unit 14, and a proxy unit 15 (FIG. 6).
The optical SW10 is connected to the ODN and TRx11. The optical SW10 performs autonomous control, is controlled by another component provided in the device, an external device, or the like, or is controlled by an instruction transferred via another component provided in the device, an external device, or the like. Will be done.

TRx11 that transmits and receives optical signals of different wavelengths (λA to λN) is connected to the proxy unit 15 directly or via a concentrating SW or the like.
The TRx11 performs autonomous control, is controlled by another component provided in the device, an external device, or the like, or is controlled by an instruction transferred via another component provided in the device, an external device, or the like. To. The TRx11 processes a part or all of the traffic of the optical SW10 or the proxy unit 15 in the same manner as 1-1.

The control unit 14 is connected to an optical SW10, TRx11, a proxy unit 15, an external OpS or the like (not shown), a controller (not shown), or an external device (not shown). The control unit 14 controls a component provided in the device, an external device, or the like, or transfers an instruction via the component provided in the device, the external device, or the like.

The proxy unit 15 is connected to a device (not shown) on the upper side directly or via a concentrating SW or the like. The proxy unit 15 performs autonomous control, is controlled by another component provided in the device, an external device, or the like, or is controlled by an instruction transferred via another component provided in the device, an external device, or the like. Will be done. The proxy unit 15 processes a part or all of the traffic of TRx11 or the device on the upper side (not shown) in the same manner as 1-1.

The components provided in the device are a part of the traffic provided in the device, a part or all of the traffic of the external device, or a copy thereof, and a part of the received traffic, all of the traffic received, and the traffic received. The response to the partially or completely rewritten traffic or the received traffic may be transmitted to other components provided in the device, an external device, or the like.

In the communication system of the communication system configuration (22-2), TRx11 (λA to λA) and TRx11 that transmit and receive optical signals of the same wavelength instead of different wavelengths in addition to the configuration of the communication system configuration (22-1). (ΛB to λB), ..., TRx11 (λN to λN) are connected to the proxy unit 15 directly or via the concentrating SW or the like. Further, a plurality of TRx11 having at least a part of the different wavelengths of TRx11 may be directly connected to the proxy unit 15 or via a concentrating SW or the like. Others are similar.

The communication system of the communication system configuration (23-1) includes an optical SW10, a TRx11, a SW12, and an external server 16 (FIG. 6).
The optical SW10 is connected to the ODN and TRx11. The optical SW10 performs autonomous control, is controlled by another component provided in the device, an external device, or the like, or is controlled by an instruction transferred via another component provided in the device, an external device, or the like. Will be done.

TRx11 that transmits and receives optical signals of different wavelengths (λA to λN) is connected to SW12. The TRx11 performs autonomous control, is controlled by another component provided in the device, an external device, or the like, or is controlled by an instruction transferred via another component provided in the device, an external device, or the like. To. TRx11 processes a part or all of the traffic of the optical SW10 or SW12 in the same manner as 1-1.

The SW12 is connected to a device (not shown) on the upper side directly or via a concentrating SW or the like. The SW12 performs autonomous control, is controlled by another component provided in the device, an external device, or the like, or is controlled by an instruction transferred via another component provided in the device, an external device, or the like. To. The SW12 processes a part or all of the traffic of the TRx11 or the upper device (not shown) in the same manner as 1-1.

The external server 16 is connected to an optical SW10, TRx11, SW12, an external OpS or the like (not shown), a controller (not shown), or an external device (not shown). The external server 16 controls other components provided in the device, an external device, or the like, or transfers instructions via the other components included in the device, the external device, or the like.

The components provided in the device are a part of the traffic provided in the device, a part or all of the traffic of the external device, or a copy thereof, and a part of the received traffic, all of the traffic received, and the traffic received. The response to the partially or completely rewritten traffic or the received traffic may be transmitted to other components provided in the device, an external device, or the like.

In the communication system of the communication system configuration (23-2), TRx11 (λA to λA) and TRx11 that transmit and receive optical signals of the same wavelength instead of different wavelengths in addition to the configuration of the communication system configuration (23-1). (ΛB to λB), ..., TRx11 (λN to λN) are connected to SW12, respectively. Further, a plurality of TRx11 having at least a part of the different wavelengths TRx11 may be connected to the SW12. Others are similar.

The communication system of the communication system configuration (24-1) includes an optical SW10, a TRx11, a SW13, and an external server 16 (FIG. 6).
The optical SW10 is connected to the ODN and TRx11. The optical SW10 performs autonomous control, is controlled by another component provided in the device, an external device, or the like, or is controlled by an instruction transferred via another component provided in the device, an external device, or the like. Will be done.

TRx11 that transmits and receives optical signals of different wavelengths (λA to λN) is connected to SW13. The TRx11 performs autonomous control, is controlled by another component provided in the device, an external device, or the like, or is controlled by an instruction transferred via another component provided in the device, an external device, or the like. To. TRx11 processes a part or all of the traffic of the optical SW10 or SW13 in the same manner as 1-1.

The SW13 is connected to a device (not shown) on the upper side directly or via a concentrating SW or the like. The SW13 performs autonomous control, is controlled by another component provided in the device, an external device, or the like, or is controlled by an instruction transferred via another component provided in the device, an external device, or the like. To. The SW13 processes a part or all of the traffic of the TRx11 or the device on the upper side (not shown) in the same manner as 1-1.

The external server 16 is connected to an optical SW10, TRx11, SW13, an external OpS or the like (not shown), a controller (not shown), or an external device (not shown). The external server 16 controls other components provided in the device, an external device, or the like, or transfers instructions via the other components included in the device, the external device, or the like.

The components provided in the device are a part or all of the traffic of other components provided in the device, an external device, etc., or a part of the traffic received by receiving a copy thereof, all of the traffic received, and the traffic received. The response to the partially or completely rewritten traffic or the received traffic may be transmitted to other components provided in the device, an external device, or the like.

In the communication system of the communication system configuration (24-2), TRx11 (λA to λA) and TRx11 that transmit and receive optical signals of the same wavelength instead of different wavelengths in addition to the configuration of the communication system configuration (24-1). (ΛB to λB), ..., TRx11 (λN to λN) are connected to SW13, respectively. Further, a plurality of TRx11 having at least a part of the different wavelengths of TRx11 may be connected to the SW13. Others are similar.

The communication system of the communication system configuration (25-1) includes an optical SW10, TRx11, a control unit 14, and an external server 16 (FIG. 6).
The optical SW10 is connected to the ODN and TRx11. The optical SW10 performs autonomous control, is controlled by another component provided in the device, an external device, or the like, or is controlled by an instruction transferred via another component provided in the device, an external device, or the like. Will be done.

TRx11 that transmits and receives optical signals of different wavelengths (λA to λN) is connected to a higher-level device (not shown) directly or via a concentrating SW or the like. The TRx11 performs autonomous control, is controlled by another component provided in the device, an external device, or the like, or is controlled by an instruction transferred via another component provided in the device, an external device, or the like. To. The TRx11 processes a part or all of the traffic of the optical SW10 or the device on the upper side (not shown) in the same manner as 1-1.

The control unit 14 is connected to an optical SW10, TRx11, an external server 16, an external OpS or the like (not shown), a controller (not shown), or an external device (not shown). The control unit 14 controls a component provided in the device, an external device, or the like, or transfers an instruction via the component provided in the device, the external device, or the like.

The external server 16 is connected to an optical SW10, TRx11, a control unit 14, an external OpS or the like (not shown), a controller (not shown), or an external device (not shown). The external server 16 controls a component provided in the device, an external device, or the like, or transfers an instruction via the component provided in the device, the external device, or the like.

The components provided in the device are a part or all of the traffic of other components provided in the device, an external device, etc., or a part of the traffic received by receiving a copy thereof, all of the traffic received, and the traffic received. The response to the partially or completely rewritten traffic or the received traffic may be transmitted to other components provided in the device, an external device, or the like.

In the communication system of the communication system configuration (25-2), TRx11 (λA to λA) and TRx11 that transmit and receive optical signals of the same wavelength instead of different wavelengths in addition to the configuration of the communication system configuration (25-1). (ΛB to λB), ..., TRx11 (λN to λN) are connected to a higher-level device (not shown) directly or via a concentrating SW or the like. Further, a plurality of TRx11 having at least a part of the different wavelengths of TRx11 may be connected directly to a higher-level device (not shown) or via a concentrating SW or the like. Others are similar.

The communication system of the communication system configuration (26-1) includes an optical SW10, a TRx11, a proxy unit 15, and an external server 16 (FIG. 6).
The optical SW10 is connected to the ODN and TRx11. The optical SW10 performs autonomous control, is controlled by another component provided in the device, an external device, or the like, or is controlled by an instruction transferred via another component provided in the device, an external device, or the like. Will be done.

TRx11 that transmits and receives optical signals of different wavelengths (λA to λN) is connected to the proxy unit 15 directly or via a concentrating SW or the like. The TRx11 performs autonomous control, is controlled by another component provided in the device, an external device, or the like, or is controlled by an instruction transferred via another component provided in the device, an external device, or the like. To. The TRx11 processes a part or all of the traffic of the optical SW10 or the proxy unit 15 in the same manner as 1-1.

The proxy unit 15 performs autonomous control, is controlled by another component provided in the device, an external device, or the like, or is an instruction transferred via another component provided in the device, an external device, or the like. Be controlled. The proxy unit 15 processes a part or all of the traffic of TRx11 or the device on the upper side (not shown) in the same manner as 1-1.

The external server 16 is connected to an optical SW10, TRx11, a proxy unit 15, an external OpS or the like (not shown), a controller (not shown), or an external device (not shown). The external server 16 controls other components provided in the device, an external device, or the like, or transfers instructions via the other components included in the device, the external device, or the like.

The components provided in the device are a part or all of the traffic of other components provided in the device, an external device, etc., or a part of the traffic received by receiving a copy thereof, all of the traffic received, and the traffic received. The response to the partially or completely rewritten traffic or the received traffic may be transmitted to other components provided in the device, an external device, or the like.

In the communication system of the communication system configuration (26-2), TRx11 (λA to λA) and TRx11 that transmit and receive optical signals of the same wavelength instead of different wavelengths in addition to the configuration of the communication system configuration (26-1). (ΛB to λB), ..., TRx11 (λN to λN) are connected to the proxy unit 15 directly or via the concentrating SW or the like. Further, a plurality of TRx11 having at least a part of the different wavelengths of TRx11 may be directly connected to the proxy unit 15 or via a concentrating SW or the like. Others are similar.

The communication system of the communication system configuration (27-1) includes an optical SW10, TRx11, and SW12 (FIG. 6).
The optical SW10 is connected to the ODN and TRx11. The optical SW10 performs autonomous control, is controlled by another component provided in the device, an external device, or the like, or is controlled by an instruction transferred via another component provided in the device, an external device, or the like. Will be done.

TRx11 that transmits and receives optical signals of different wavelengths (λA to λN) is connected to SW12. The TRx11 performs autonomous control, is controlled by another component provided in the device, an external device, or the like, or is controlled by an instruction transferred via another component provided in the device, an external device, or the like. To. TRx11 processes a part or all of the traffic of the optical SW10 or SW12 in the same manner as 1-1.

The SW12 is connected to a device (not shown) on the upper side directly or via a concentrating SW or the like. The SW12 performs autonomous control, is controlled by another component provided in the device, an external device, or the like, or is controlled by an instruction transferred via another component provided in the device, an external device, or the like. To. The SW12 processes a part or all of the traffic of the TRx11 or the upper device (not shown) in the same manner as 1-1.

The components provided in the device are a part or all of the traffic of other components provided in the device, an external device, etc., or a part of the traffic received by receiving a copy thereof, all of the traffic received, and the traffic received. The response to the partially or completely rewritten traffic or the received traffic may be transmitted to other components provided in the device, an external device, or the like.

In the communication system of the communication system configuration (27-2), TRx11 (λA to λA) and TRx11 that transmit and receive optical signals of the same wavelength instead of different wavelengths in addition to the configuration of the communication system configuration (27-1). (ΛB to λB), ..., TRx11 (λN to λN) are connected to SW12, respectively. Further, a plurality of TRx11 having at least a part of the different wavelengths TRx11 may be connected to the SW12. Others are similar.

The communication system of the communication system configuration (28-1) includes an optical SW10, TRx11, and SW13 (FIG. 6).
The optical SW10 is connected to the ODN and TRx11. The optical SW10 performs autonomous control, is controlled by another component provided in the device, an external device, or the like, or is controlled by an instruction transferred via another component provided in the device, an external device, or the like. Will be done.

TRx11 that transmits and receives optical signals of different wavelengths (λA to λN) is connected to SW13. The TRx11 performs autonomous control, is controlled by another component provided in the device, an external device, or the like, or is controlled by an instruction transferred via another component provided in the device, an external device, or the like. To. TRx11 processes a part or all of the traffic of the optical SW10 or SW13 in the same manner as 1-1.

The SW13 is connected to a device (not shown) on the upper side directly or via a concentrating SW or the like. The SW13 performs autonomous control, is controlled by another component provided in the device, an external device, or the like, or is controlled by an instruction transferred via another component provided in the device, an external device, or the like. To. The SW13 processes a part or all of the traffic of the TRx11 or the upper device (not shown) in the same manner as 1-1.

The components provided in the device are a part of the traffic provided in the device, a part or all of the traffic of the external device, or a copy thereof, and a part of the received traffic, all of the traffic received, and the traffic received. The response to the partially or completely rewritten traffic or the received traffic may be transmitted to other components provided in the device, an external device, or the like.

In the communication system of the communication system configuration (28-2), TRx11 (λA to λA) and TRx11 that transmit and receive optical signals of the same wavelength instead of different wavelengths in addition to the configuration of the communication system configuration (28-1). (ΛB to λB), ..., TRx11 (λN to λN) are connected to SW13, respectively. Further, a plurality of TRx11 having at least a part of the different wavelengths of TRx11 may be connected to the SW13. Others are similar.

The communication system of the communication system configuration (29-1) includes an optical SW10, TRx11, and a control unit 14 (FIG. 6).
The optical SW10 is connected to the ODN and TRx11. The optical SW10 performs autonomous control, is controlled by another component provided in the device, an external device, or the like, or is controlled by an instruction transferred via another component provided in the device, an external device, or the like. Will be done.

TRx11 that transmits and receives optical signals of different wavelengths (λA to λN) is connected to a higher-level device (not shown) directly or via a concentrating SW or the like. The TRx11 performs autonomous control, is controlled by another component provided in the device, an external device, or the like, or is controlled by an instruction transferred via another component provided in the device, an external device, or the like. To. The TRx11 processes a part or all of the traffic of the optical SW10 or the device on the upper side (not shown) in the same manner as 1-1.

The control unit 14 is connected to an optical SW10, TRx11, an external OpS or the like (not shown), a controller (not shown), or an external device (not shown). The control unit 14 controls a component provided in the device, an external device, or the like, or transfers an instruction via the component provided in the device, the external device, or the like.

The components provided in the device are a part or all of the traffic of other components provided in the device, an external device, etc., or a part of the traffic received by receiving a copy thereof, all of the traffic received, and the traffic received. The response to the partially or completely rewritten traffic or the received traffic may be transmitted to other components provided in the device, an external device, or the like.

In the communication system of the communication system configuration (29-2), TRx11 (λA to λA) and TRx11 that transmit and receive optical signals of the same wavelength instead of different wavelengths in addition to the configuration of the communication system configuration (29-1). (ΛB to λB), ..., TRx11 (λN to λN) are connected to a higher-level device (not shown) directly or via a concentrating SW or the like. Further, a plurality of TRx11 having at least a part of the different wavelengths of TRx11 may be connected directly to a higher-level device (not shown) or via a concentrating SW or the like. Others are similar.

The communication system of the communication system configuration (30-1) includes an optical SW10, TRx11, and a proxy unit 15 (FIG. 6).
The optical SW10 is connected to the ODN and TRx11. The optical SW10 performs autonomous control, is controlled by another component provided in the device, an external device, or the like, or is controlled by an instruction transferred via another component provided in the device, an external device, or the like. Will be done.

TRx11 that transmits and receives optical signals of different wavelengths (λA to λN) is connected to the proxy unit 15 directly or via a concentrating SW or the like. The TRx11 performs autonomous control, is controlled by a component provided in the device, an external device, or the like, or is controlled by an instruction transferred via another component provided in the device, an external device, or the like. The TRx11 processes a part or all of the traffic of the optical SW10 or the proxy unit 15 in the same manner as 1-1.

The proxy unit 15 performs autonomous control, is controlled by another component provided in the device, an external device, or the like, or is an instruction transferred via another component provided in the device, an external device, or the like. Be controlled. The proxy unit 15 processes a part or all of the traffic of TRx11 or the device on the upper side (not shown) in the same manner as 1-1.

The components provided in the device are a part or all of the traffic of other components provided in the device, an external device, etc., or a part of the traffic received by receiving a copy thereof, all of the traffic received, and the traffic received. The response to the partially or completely rewritten traffic or the received traffic may be transmitted to other components provided in the device, an external device, or the like.

In the communication system of the communication system configuration (30-2), TRx11 (λA to λA) and TRx11 that transmit and receive optical signals of the same wavelength instead of different wavelengths in addition to the configuration of the communication system configuration (30-1). (ΛB to λB), ..., TRx11 (λN to λN) are connected to the proxy unit 15 directly or via the concentrating SW or the like. Further, a plurality of TRx11 having at least a part of the different wavelengths of TRx11 may be directly connected to the proxy unit 15 or via a concentrating SW or the like. Others are similar.

The communication system of the communication system configuration (31-1) includes an optical SW10, TRx11, and an external server 16 (FIG. 6).
The optical SW10 is connected to the ODN and TRx11. The optical SW10 performs autonomous control, is controlled by another component provided in the device, an external device, or the like, or is controlled by an instruction transferred via another component provided in the device, an external device, or the like. Will be done.

TRx11 that transmits and receives optical signals of different wavelengths (λA to λN) is connected to a higher-level device (not shown) directly or via a concentrating SW or the like. The TRx11 performs autonomous control, is controlled by another component provided in the device, an external device, or the like, or is controlled by an instruction transferred via another component provided in the device, an external device, or the like. To. The TRx11 processes a part or all of the traffic of the optical SW10 or the device on the upper side (not shown) in the same manner as 1-1.

The external server 16 is connected to an optical SW10, TRx11, an external OpS or the like (not shown), a controller (not shown), or an external device (not shown). The external server 16 controls other components provided in the device, an external device, or the like, or transfers instructions via the other components of TRx11, the external device, or the like.

The components provided in the device are a part or all of the traffic of other components provided in the device, an external device, etc., or a part of the traffic received by receiving a copy thereof, all of the traffic received, and the traffic received. The response to the partially or completely rewritten traffic or the received traffic may be transmitted to other components provided in the device, an external device, or the like.

In the communication system of the communication system configuration (31-2), TRx11 (λA to λA) and TRx11 that transmit and receive optical signals of the same wavelength instead of different wavelengths in addition to the configuration of the communication system configuration (31-1). (ΛB to λB), ..., TRx11 (λN to λN) are connected to a higher-level device (not shown) directly or via a concentrating SW or the like. Further, a plurality of TRx11 having at least a part of the different wavelengths of TRx11 may be connected directly to a higher-level device (not shown) or via a concentrating SW or the like. Others are similar.

The communication system of the communication system configuration (32-1) includes an optical SW10 and TRx11 (FIG. 6).
The optical SW10 is connected to the ODN and TRx11. The optical SW10 performs autonomous control, is controlled by another component provided in the device, an external device, or the like, or is controlled by an instruction transferred via another component provided in the device, an external device, or the like. Will be done.

TRx11 that transmits and receives optical signals of different wavelengths (λA to λN) is connected to a higher-level device (not shown) directly or via a concentrating SW or the like. The TRx11 performs autonomous control, is controlled by a component provided in the device, an external device, or the like, or is controlled by an instruction transferred via another component provided in the device, an external device, or the like. The TRx11 processes a part or all of the traffic of the optical SW10 or the device on the upper side (not shown) in the same manner as 1-1.

The components provided in the device are a part or all of the traffic of other components provided in the device, an external device, etc., or a part of the traffic received by receiving a copy thereof, all of the traffic received, and the traffic received. The response to the partially or completely rewritten traffic or the received traffic may be transmitted to other components provided in the device, an external device, or the like.

In the communication system of the communication system configuration (32-2), TRx11 (λA to λA) and TRx11 that transmit and receive optical signals of the same wavelength instead of different wavelengths in addition to the configuration of the communication system configuration (32-1). (ΛB to λB), ..., TRx11 (λN to λN) are connected to a higher-level device (not shown) directly or via a concentrating SW or the like. Further, a plurality of TRx11 having at least a part of the different wavelengths of TRx11 may be connected directly to a higher-level device (not shown) or via a concentrating SW or the like. Others are similar.

The communication systems shown in the above communication system configurations (1-1) to (32-2) are provided with the optical SW10, but the communication systems shown in the communication system configurations (1-1) to (32-2) are optical. It may be configured not to include SW10. In the communication system shown in FIG. 6, the configurations not provided with the optical SW10 corresponding to the communication system configurations (1-1) to (32-2) are referred to as communication system configurations (33-1) to (64-2), respectively. .. That is, the communication device includes at least a part of TRx11, SW12, SW13, a control unit 14, and a proxy unit 15. The communication device may include an external server 16. In the communication system configurations (33-1) to (64-2), the ODN and TRx11 are connected without the optical SW10. The input / output of TRx11 having the same wavelength including the input / output of TRx11 having a variable wavelength may be connected to core wires having different ODNs or an optical duplexer connected to them, or the input / output of TRx11 having a plurality of wavelengths including the variable wavelength. Alternatively, those bundled by an optical duplexer or the like may be connected to core wires having different ODNs, or the inputs and outputs of TRx11 having wavelengths including variable wavelengths may be bundled to form core wires having different ODNs or optical conjugates connected to them. It may be connected to a wave device or the like. Others are similar.

(First configuration example)
An example will be described in which the OLT is equipped with TRx11 and the execution unit and the instruction unit are separately provided for function deployment. In this case, the OLT includes an execution unit on TRx11. The OLT includes an instruction unit at an information processing unit of TRx11, a CPU (Central Processing Unit), or the like where arithmetic processing is possible. It is preferable that the execution unit is arranged on the PON side of the instruction unit from the viewpoint of response speed, but it may be reversed, it may be on another device at the same position, or it may be on another VM on the same device.

Further, in the first configuration example, the OLT has the same wavelength mainly including the input / output of TRx11 having a variable wavelength (in the example described later, the same frequency, mode, core, code, frequency, (sub) carrier, etc., and wavelength. The input and output of TRx11 of TRx11 (which may be a combination thereof including) is different core wires (in the example described later, different modes, cores, etc. and these combinations including core wires may be used) or the optical frequency connected to them. Multiple wavelengths including switching or variable wavelengths in a wave device, etc. (In the example described later, a combination of multiple frequencies, modes, cores, codes, frequencies, (sub) carriers, etc., and wavelengths may be used). The input / output of TRx11 or a bundle of them by an optical duplexer or the like is switched to a different core wire (in the example described later, a combination of these including different modes, cores or the like and the core wire may be used), or a variable wavelength is included. Different core wires (described later) by bundling the input and output of TRx11 of wavelength (in the example described later, the frequency, mode, core, code, frequency, (sub) carrier, etc., and wavelength may be a combination thereof). In the example, it may be a combination of these with different modes, cores, etc., and core wires), or an optical SW10 for switching to an optical duplexer connected to them. In addition, also in the 2nd to 64th configuration examples shown below, the OLT includes the optical SW10.

The input / output of the execution unit and the instruction unit may be any of the internal wiring, the backboard, the OAM unit 114, the main signal line, the dedicated wiring, the OpS, etc., the controller, or the route such as Cont. When the exchange is directly terminated by the instruction unit and input, it may be encapsulated in the OAM unit 114 or the main signal. The exchange may be terminated at any point and input via an internal wiring, a backboard, an OAM unit 114, a main signal line, a dedicated wiring, an OpS, or a path such as a controller or a control panel. When the OAM unit 114 or the main signal line is used, it is desirable to encapsulate it in the OAM unit 114 or the main signal. When passing through the main signal line, it is desirable to distribute it to the indicator by OSU or SW at another location.

The first configuration example can be applied to any configuration in the communication system configurations (1-1) to (64-2) in which TRx11 and TRx11 are provided with arithmetic processing parts.

(Second configuration example)
In the second configuration example, the execution unit is provided in TRx11, and the instruction unit is provided in the SW12, for example, an information processing unit, a CPU, or other place where arithmetic processing is possible. Others are the same as in the first configuration example. The second configuration example can be applied to any configuration in the communication system configurations (1-1) to (64-2) in which TRx11 and SW12 are provided with arithmetic processing parts. It should be noted that the execution unit and the instruction unit may be provided in both the TRx11 and the SW12 where the arithmetic processing can be performed.

(Third configuration example)
In the third configuration example, the execution unit is provided in TRx11, and the instruction unit is provided in an OSU such as an information processing unit or a CPU or the like where arithmetic processing is possible. Others are the same as in the first configuration example. The third configuration example can be applied to any configuration in the communication system configurations (1-1) to (64-2) in which TRx11 and OSU are provided with arithmetic processing parts. It should be noted that the execution unit and the instruction unit may be provided in both the TRx11 and the OSU where the arithmetic processing can be performed.

(Fourth configuration example)
In the fourth configuration example, the execution unit is provided in the TRx11, and the instruction unit is provided in the SW13, for example, the information processing unit, the CPU, or the like where arithmetic processing is possible. Others are the same as in the first configuration example. The fourth configuration example can be applied to any configuration in the communication system configurations (1-1) to (64-2) in which TRx11 and SW13 are provided with arithmetic processing parts. It should be noted that the execution unit and the instruction unit may be provided at both the TRx11 and the SW13 where the arithmetic processing is possible.

(Fifth configuration example)
In the fifth configuration example, the execution unit is provided in TRx11, and the instruction unit is provided in an OLT such as a control unit 14, an information processing unit, a control panel, or a CPU panel, which can perform arithmetic processing. Others are the same as in the first configuration example. The fifth configuration example can be applied to any configuration in the communication system configurations (1-1) to (64-2) in which TRx11 and OLT are provided with arithmetic processing parts. It should be noted that the execution unit and the instruction unit may be provided in both the TRx11 and the OLT calculation-processable locations.

(Sixth configuration example)
In the sixth configuration example, the execution unit is provided in TRx11, and the instruction unit is provided in a place outside the OLT such as a center cloud, a local cloud, an edge cloud, a single external server 16, an information processing unit, and OpS, which can perform arithmetic processing. .. Others are the same as in the first configuration example. The sixth configuration example can be applied to any configuration in the communication system configurations (1-1) to (64-2) that includes TRx11 and a portion that can perform arithmetic processing outside the OLT. It should be noted that the execution unit and the instruction unit may be provided in both the TRx11 and the portion outside the OLT that can perform arithmetic processing.

(7th configuration example)
In the seventh configuration example, the execution unit is provided in TRx11, and the instruction unit is provided in a place in the main signal network outside the OLT such as a proxy unit 15 that can perform arithmetic processing. Others are the same as in the first configuration example. The seventh configuration example can be applied to any configuration in the communication system configurations (1-1) to (64-2) that includes a portion capable of arithmetic processing in the main signal network outside the TRx11 and the OLT. It should be noted that the execution unit and the instruction unit may be provided at both the TRx11 and the portion capable of performing arithmetic processing in the main signal network outside the OLT.

(8th configuration example)
In the eighth configuration example, the execution unit is provided in the SW12, and the instruction unit is provided in a TRx11 such as an information processing unit or a CPU or the like where arithmetic processing is possible. Others are the same as in the first configuration example. The eighth configuration example can be applied to any configuration in the communication system configurations (1-1) to (64-2) in which the SW12 and TRx11 are provided with arithmetic processing parts. It should be noted that the execution unit and the instruction unit may be provided in both the SW12 and the TRx11 where the arithmetic processing can be performed.

(9th configuration example)
In the ninth configuration example, the execution unit is provided in the SW12, and the instruction unit is provided in the SW12, for example, an information processing unit, a CPU, or a like where arithmetic processing is possible. It is preferable that the execution unit is arranged on the PON side of the instruction unit from the viewpoint of response speed, but it may be reversed, it may be on another device at the same position, or it may be on another VM on the same device. Others are the same as in the first configuration example. The ninth configuration example can be applied to any configuration in the communication system configurations (1-1) to (64-2) in which the SW12 and the SW12 are provided with arithmetic processing parts.

(10th configuration example)
In the tenth configuration example, the execution unit is provided in the SW12, and the instruction unit is provided in, for example, an information processing unit of the OSU, a CPU, or a like where arithmetic processing is possible. Others are the same as in the first configuration example. The tenth configuration example can be applied to any configuration in the communication system configurations (1-1) to (64-2) in which the SW12 and the OSU are provided with arithmetic processing parts. It should be noted that the execution unit and the instruction unit may be provided in both the SW12 and the OSU where the arithmetic processing can be performed.

(11th configuration example)
In the eleventh configuration example, the execution unit is provided in the SW12, and the instruction unit is provided in the SW13, for example, an information processing unit, a CPU, or the like. Others are the same as in the first configuration example. The eleventh configuration example can be applied to any configuration in the communication system configurations (1-1) to (64-2) in which the SW12 and SW13 are provided with arithmetic processing parts. It should be noted that the execution unit and the instruction unit may be provided at both the SW12 and the SW13 where the arithmetic processing can be performed.

(12th configuration example)
In the twelfth configuration example, the execution unit is provided in the SW12, and the instruction unit is provided in an OLT such as a control unit 14, an information processing unit, a control panel, or a CPU panel, which can perform arithmetic processing. Others are the same as in the first configuration example. The twelfth configuration example can be applied to any configuration in the communication system configurations (1-1) to (64-2) in which the SW12 and the OLT are provided with a portion capable of arithmetic processing. It should be noted that an execution unit and an instruction unit may be provided in both the SW12 and the OLT where the arithmetic processing can be performed.

(13th configuration example)
In the thirteenth configuration example, the execution unit is provided in SW12, and the instruction unit is provided in a place outside the OLT such as a center cloud, a local cloud, an edge cloud, a single external server 16, an information processing unit, and OpS, which can perform arithmetic processing. .. Others are the same as in the first configuration example. The thirteenth configuration example can be applied to any configuration in the communication system configurations (1-1) to (64-2) that includes a portion capable of arithmetic processing outside the SW12 and the OLT. It should be noted that an execution unit and an instruction unit may be provided in both the SW12 and the portion outside the OLT where arithmetic processing can be performed.

(14th configuration example)
In the 14th configuration example, the execution unit is provided in the SW12, and the instruction unit is provided in a place in the main signal network outside the OLT where arithmetic processing can be performed, such as the proxy unit 15. Others are the same as in the first configuration example. The 14th configuration example can be applied to any configuration in the communication system configurations (1-1) to (64-2) that includes a portion capable of arithmetic processing in the main signal network outside the SW12 and the OLT. It should be noted that the execution unit and the instruction unit may be provided in both the SW12 and the part of the main signal network outside the OLT that can perform arithmetic processing.

(15th configuration example)
In the fifteenth configuration example, the execution unit is provided in the OSU, and the instruction unit is provided in a TRx11 such as an information processing unit or a CPU or the like where arithmetic processing is possible. Others are the same as in the first configuration example. The fifteenth configuration example can be applied to the configurations in the communication system configurations (1-1) to (64-2) in which the OSU and TRx11 include a portion capable of arithmetic processing. It should be noted that the execution unit and the instruction unit may be provided in both the OSU and the TRx11 where the arithmetic processing can be performed.

(16th configuration example)
In the 16th configuration example, the execution unit is provided in the OSU, and the instruction unit is provided in the SW12, for example, an information processing unit, a CPU, or other places where arithmetic processing is possible. Others are the same as in the first configuration example. The sixteenth configuration example can be applied to any configuration in the communication system configurations (1-1) to (64-2) in which the OSU and SW12 are provided with arithmetic processing parts. It should be noted that the execution unit and the instruction unit may be provided in both the OSU and the SW12 where the arithmetic processing can be performed.

(17th configuration example)
In the seventeenth configuration example, the execution unit is provided in the OSU, and the instruction unit is provided in the OSU, for example, an information processing unit, a CPU, or other places where arithmetic processing is possible. It is preferable that the execution unit is arranged closer to the PON than the instruction unit from the viewpoint of response speed, but the opposite may be true, it may be on another device at the same position, or on another VM on the same device. Others are the same as in the first configuration example. The seventeenth configuration example can be applied to any configuration in the communication system configurations (1-1) to (64-2) in which the OSU and the OSU are provided with arithmetic processing parts.

(18th configuration example)
In the eighteenth configuration example, the execution unit is provided in the OSU, and the instruction unit is provided in a SW13, for example, an information processing unit, a CPU, or a like where arithmetic processing is possible. Others are the same as in the first configuration example. The eighteenth configuration example can be applied to any configuration in the communication system configurations (1-1) to (64-2) in which the OSU and SW13 are provided with arithmetic processing parts. It should be noted that the execution unit and the instruction unit may be provided in both the OSU and the SW13 where the arithmetic processing can be performed.

(19th configuration example)
In the nineteenth configuration example, the execution unit is provided in the OSU, and the instruction unit is provided in an OLT such as a control unit 14, an information processing unit, a control panel, or a CPU panel, which can perform arithmetic processing. Others are the same as in the first configuration example. The 19th configuration example can be applied to any configuration in the communication system configurations (1-1) to (64-2) in which the OSU and the OLT are provided with arithmetic processing parts. It should be noted that an execution unit and an instruction unit may be provided in both the OSU and the OLT where the arithmetic processing can be performed.

(20th configuration example)
In the twentieth configuration example, the execution unit is provided in the OSU, and the instruction unit is provided in a place outside the OLT such as a center cloud, a local cloud, an edge cloud, a single external server 16, an information processing unit, and OpS, which can perform arithmetic processing. .. Others are the same as in the first configuration example. The twentieth configuration example can be applied to any configuration in the communication system configurations (1-1) to (64-2) that includes a portion capable of arithmetic processing outside the OSU and the OLT. It should be noted that an execution unit and an instruction unit may be provided in both the OSU and the portion outside the OLT that can perform arithmetic processing.

(21st configuration example)
In the 21st configuration example, the execution unit is provided in the OSU, and the instruction unit is provided in a place in the main signal network outside the OLT where arithmetic processing is possible, such as the proxy unit 15. Others are the same as in the first configuration example. The 21st configuration example can be applied to any configuration in the communication system configurations (1-1) to (64-2) that includes a portion capable of arithmetic processing in the main signal network outside the OSU and the OLT. It should be noted that both the OSU and the main signal network outside the OLT may be provided with an execution unit and an instruction unit at locations where arithmetic processing is possible.

(22nd configuration example)
In the 22nd configuration example, the execution unit is provided in the SW13, and the instruction unit is provided in the TRx11, for example, the information processing unit, the CPU, or the like where arithmetic processing is possible. Others are the same as in the first configuration example. The 22nd configuration example can be applied to any configuration in the communication system configurations (1-1) to (64-2) in which SW13 and TRx11 are provided with arithmetic processing parts. It should be noted that the execution unit and the instruction unit may be provided in both the SW13 and the TRx11 where the arithmetic processing can be performed.

(23rd configuration example)
In the 23rd configuration example, the execution unit is provided in SW13, and the instruction unit is provided in SW12. Others are the same as in the first configuration example. The 23rd configuration example can be applied to any configuration including SW13 and SW12 in the communication system configurations (1-1) to (64-2). It should be noted that the execution unit and the instruction unit may be provided at both the SW13 and the SW12 where the arithmetic processing can be performed.

(24th configuration example)
In the 24th configuration example, the execution unit is provided in the SW13, and the instruction unit is provided in a place where the operation of the OSU can be performed. The parts that can be processed by the OSU are, for example, an information processing unit and a CPU. Others are the same as in the first configuration example. The 24th configuration example can be applied to any configuration in the communication system configurations (1-1) to (64-2) in which the SW13 and the OSU are provided with arithmetic processing parts. It should be noted that the execution unit and the instruction unit may be provided in both the SW13 and the OSU where the arithmetic processing can be performed.

(25th configuration example)
In the 25th configuration example, the execution unit is provided in the SW13, and the instruction unit is provided in the SW13, for example, an information processing unit, a CPU, or a like where arithmetic processing is possible. Others are the same as in the first configuration example. It is preferable that the execution unit is arranged on the PON side of the instruction unit from the viewpoint of response speed, but it may be reversed, it may be on another device at the same position, or it may be on another VM on the same device. The 25th configuration example can be applied to any configuration in the communication system configurations (1-1) to (64-2) in which the SW 13 is provided with a portion capable of arithmetic processing.

(26th configuration example)
In the 26th configuration example, the execution unit is provided in the SW13, and the instruction unit is provided in an OLT such as a control unit 14, an information processing unit, a control panel, or a CPU panel, which can perform arithmetic processing. Others are the same as in the first configuration example. The 26th configuration example can be applied to any configuration in the communication system configurations (1-1) to (64-2) in which the SW13 and the OLT are provided with a portion capable of arithmetic processing. It should be noted that the execution unit and the instruction unit may be provided at both the SW13 and the OLT calculation-processable locations.

(27th configuration example)
In the 27th configuration example, the execution unit is provided in SW13, and the instruction unit is provided in a place outside the OLT such as a center cloud, a local cloud, an edge cloud, a single external server 16, an information processing unit, and OpS, which can perform arithmetic processing. .. Others are the same as in the first configuration example. The 27th configuration example can be applied to any configuration in the communication system configurations (1-1) to (64-2) that includes a SW13 and a portion that can perform arithmetic processing outside the OLT. It should be noted that an execution unit and an instruction unit may be provided in both the SW13 and the portion outside the OLT where arithmetic processing can be performed.

(28th configuration example)
In the 28th configuration example, the execution unit is provided in the SW13, and the instruction unit is provided in a place in the main signal network outside the OLT where arithmetic processing is possible, such as the proxy unit 15. Others are the same as in the first configuration example. The 28th configuration example can be applied to any configuration in the communication system configurations (1-1) to (64-2) that includes a portion capable of arithmetic processing in the SW13 and the main signal network outside the OLT. It should be noted that the execution unit and the instruction unit may be provided at both the SW13 and the part of the main signal network outside the OLT that can perform arithmetic processing.

(29th configuration example)
In the 29th configuration example, the execution unit is provided in, for example, the control unit 14, the information processing unit, the control panel, the CPU panel, etc. of the OLT, and the instruction unit is provided in the information processing unit of TRx11, a location capable of arithmetic processing such as the CPU, etc. .. Others are the same as in the first configuration example. In the 29th configuration example, the parts of the OLT in the communication system configurations (1-1) to (64-2), such as the control unit 14, the information processing unit, the control panel, the CPU panel, and the like, and TRx11 can be processed. It can be applied to any configuration provided. It should be noted that the execution unit and the instruction unit may be provided in both the control unit 14, the information processing unit, the control panel, the CPU panel, and the like of the OLT, and the TRx11 that can perform arithmetic processing.

(30th configuration example)
In the thirtieth configuration example, the execution unit is provided in the OLT such as the control unit 14, the information processing unit, the control panel or the CPU panel, and the instruction unit is located in the SW12 such as the information processing unit or a CPU or the like where arithmetic processing can be performed. Be prepared. Others are the same as in the first configuration example. In the thirtieth configuration example, in the communication system configurations (1-1) to (64-2), for example, the control unit 14, the information processing unit, the control panel, the CPU panel, and the like of the OLT and the SW12 can be subjected to arithmetic processing. It can be applied to any configuration provided. It should be noted that the execution unit and the instruction unit may be provided in both the control unit 14, the information processing unit, the control panel, the CPU panel, and the like of the OLT, and the portion of the SW12 that can perform arithmetic processing.

(31st configuration example)
In the thirty-first configuration example, the execution unit is provided in the OLT such as the control unit 14, the information processing unit, the control panel or the CPU panel, and the instruction unit is provided in the OSU such as the information processing unit or a CPU or the like where arithmetic processing is possible. Be prepared. Others are the same as in the first configuration example. In the 31st configuration example, the parts of the OLT in the communication system configurations (1-1) to (64-2) that can be processed by the OSU, such as the control unit 14, the information processing unit, the control panel, or the CPU panel, are described. It can be applied to any configuration provided. It should be noted that the execution unit and the instruction unit may be provided in both the control unit 14, the information processing unit, the control panel, the CPU panel, and the like of the OLT and the parts capable of arithmetic processing of the OSU.

(32nd configuration example)
In the 32nd configuration example, the execution unit is provided in the OLT such as the control unit 14, the information processing unit, the control panel or the CPU panel, and the instruction unit is located in the SW13 such as the information processing unit or a CPU or the like where arithmetic processing can be performed. Be prepared. Others are the same as in the first configuration example. In the 32nd configuration example, the parts of the OLT in the communication system configurations (1-1) to (64-2), such as the control unit 14, the information processing unit, the control panel, the CPU panel, and the SW13, can be processed. It can be applied to any configuration provided. It should be noted that the execution unit and the instruction unit may be provided in both the control unit 14, the information processing unit, the control panel, the CPU panel, and the like of the OLT, and the portion of the SW13 that can perform arithmetic processing.

(33rd configuration example)
In the 33rd configuration example, the execution unit is provided in the OLT such as the control unit 14, the information processing unit, the control panel or the CPU panel, and the instruction unit is provided in the OLT such as the control unit 14, the information processing unit, the control panel or the CPU panel. Prepare for the part where the arithmetic processing of. It is preferable that the execution unit is arranged on the PON side of the instruction unit from the viewpoint of response speed, but it may be reversed, it may be on another device at the same position, or it may be on another VM on the same device. Others are the same as in the first configuration example. The 33rd configuration example includes, for example, a control unit 14, an information processing unit, a control panel, a CPU panel, and a portion of the OLT in the communication system configurations (1-1) to (64-2) that can perform arithmetic processing. Applicable to configuration.

(34th configuration example)
In the thirty-fourth configuration example, the execution unit is provided in, for example, the control unit 14, the information processing unit, the control panel, or the CPU panel of the OLD, and the instruction unit is outside the ALT, for example, a center cloud, a local cloud, an edge cloud, or a single external server. 16. Prepare for places where arithmetic processing is possible, such as the information processing unit and OpS. Others are the same as in the first configuration example. In the 34th configuration example, the OLT in the communication system configurations (1-1) to (64-2), for example, a control unit 14, an information processing unit, a control panel, a CPU panel, etc., and a location where arithmetic processing can be performed outside the OLT. Can be applied to any configuration provided with. It should be noted that the execution unit and the instruction unit may be provided in both the control unit 14, the information processing unit, the control panel, the CPU panel, and the like of the OLT and a portion outside the OLT that can perform arithmetic processing.

(35th configuration example)
In the 35th configuration example, the execution unit is provided in the OLT such as the control unit 14, the information processing unit, the control panel or the CPU panel, and the instruction unit can perform arithmetic processing such as the proxy unit 15 in the main signal network outside the OLT. Prepare for various places. Others are the same as in the first configuration example. In the 35th configuration example, arithmetic processing is performed on the main signal network outside the OLT, for example, the control unit 14, the information processing unit, the control panel, the CPU panel, etc. of the OLT in the communication system configurations (1-1) to (64-2). Applicable to any configuration with possible locations. It should be noted that the execution unit and the instruction unit may be provided in both the control unit 14, the information processing unit, the control panel, the CPU panel, and the like of the OLT and the part of the main signal network outside the OLT that can perform arithmetic processing.

(36th configuration example)
In the thirty-sixth configuration example, the execution unit is provided outside the OLT, for example, a center cloud, a local cloud, an edge cloud, a single external server 16, an information processing unit, an OpS, etc. Prepare for places where arithmetic processing such as Others are the same as in the first configuration example. The 36th configuration example includes, for example, a center cloud, a local cloud, an edge cloud, a single external server 16, an information processing unit, an OpS, etc. outside the OLT in the communication system configurations (1-1) to (64-2). It can be applied to any configuration in which TRx11 has a portion capable of arithmetic processing. It should be noted that the execution unit and the instruction unit may be provided in both the center cloud, the local cloud, the edge cloud, the independent external server 16, the information processing unit, the OpS, etc. outside the OLT, and the TRx11 arithmetic processing-capable part.

(37th configuration example)
In the 37th configuration example, the execution unit is provided outside the OLT, for example, the center cloud, the local cloud, the edge cloud, the independent external server 16, the information processing unit, the OpS, etc., and the instruction unit is the SW12, for example, the information processing unit or the CPU. Prepare for places where arithmetic processing such as Others are the same as in the first configuration example. The 37th configuration example includes, for example, a center cloud, a local cloud, an edge cloud, a single external server 16, an information processing unit, an OpS, etc. outside the OLT in the communication system configurations (1-1) to (64-2). It can be applied to any configuration in which the SW12 is provided with a portion capable of arithmetic processing. It should be noted that the execution unit and the instruction unit may be provided in both the center cloud, the local cloud, the edge cloud, the independent external server 16, the information processing unit, the OpS, etc. outside the OLT, and the place where the operation of the SW12 can be processed.

(38th configuration example)
In the 38th configuration example, the execution unit is provided outside the OLT, for example, the center cloud, the local cloud, the edge cloud, the independent external server 16, the information processing unit, the OpS, etc., and the instruction unit is the OSU, for example, the information processing unit or the CPU. Prepare for places where arithmetic processing such as Others are the same as in the first configuration example. The 38th configuration example includes, for example, a center cloud, a local cloud, an edge cloud, a single external server 16, an information processing unit, an OpS, etc. outside the OLT in the communication system configurations (1-1) to (64-2). It can be applied to any configuration in which the OSU has a portion capable of arithmetic processing. It should be noted that the execution unit and the instruction unit may be provided in both the center cloud, the local cloud, the edge cloud, the independent external server 16, the information processing unit, the OpS, etc. outside the OLT, and the parts capable of arithmetic processing of the OSU.

(39th configuration example)
In the 39th configuration example, the execution unit is provided outside the OLT, for example, the center cloud, the local cloud, the edge cloud, the independent external server 16, the information processing unit, the OpS, etc., and the instruction unit is the SW13, for example, the information processing unit or the CPU. Prepare for places where arithmetic processing such as Others are the same as in the first configuration example. The 39th configuration example includes, for example, a center cloud, a local cloud, an edge cloud, a single external server 16, an information processing unit, an OpS, etc. outside the OLT in the communication system configurations (1-1) to (64-2). It can be applied to any configuration in which the SW 13 is provided with a portion capable of arithmetic processing. It should be noted that the execution unit and the instruction unit may be provided in both the center cloud, the local cloud, the edge cloud, the independent external server 16, the information processing unit, the OpS, etc. outside the OLT, and the place where the operation of the SW13 can be processed.

(40th configuration example)
In the 40th configuration example, the execution unit is provided outside the OLT, for example, the center cloud, the local cloud, the edge cloud, the independent external server 16, the information processing unit, the OpS, etc., and the instruction unit is the control unit 14 of the OLT, information processing. It is provided in a part such as a unit, a control panel, or a CPU panel that can perform arithmetic processing. Others are the same as in the first configuration example. The 40th configuration example includes, for example, a center cloud, a local cloud, an edge cloud, a single external server 16, an information processing unit, an OpS, etc. outside the OLT in the communication system configurations (1-1) to (64-2). It can be applied to any configuration in which the OLT has a portion capable of arithmetic processing. It should be noted that the execution unit and the instruction unit may be provided in both the center cloud, the local cloud, the edge cloud, the independent external server 16, the information processing unit, the OpS, etc. outside the OLT, and the part where the operation of the OLT can be processed.

(41st configuration example)
In the 41st configuration example, the execution unit is provided outside the OLT such as the center cloud, the local cloud, the edge cloud, the independent external server 16, the information processing unit, the OpS, etc., and the instruction unit is provided outside the OLT such as the center cloud or the local cloud. It is provided in a place where arithmetic processing is possible, such as an edge cloud, an independent external server 16, an information processing unit, and OpS. It is preferable that the execution unit is arranged on the PON side of the instruction unit from the viewpoint of response speed, but it may be reversed, it may be on another server at the same position, or it may be on another VM on the same server. Others are the same as in the first configuration example. The 41st configuration example includes, for example, a center cloud, a local cloud, an edge cloud, a single external server 16, an information processing unit, an OpS, etc. outside the OLT in the communication system configurations (1-1) to (64-2). It can be applied to any configuration having a part that can perform arithmetic processing outside the OLT. It should be noted that the execution unit and the instruction unit may be provided in both the center cloud, the local cloud, the edge cloud, the independent external server 16, the information processing unit, the OpS, etc. outside the OLT and the part capable of performing arithmetic processing outside the OLT. ..

(42nd configuration example)
In the 42nd configuration example, the execution unit is provided outside the OLT, for example, the center cloud, the local cloud, the edge cloud, the independent external server 16, the information processing unit, the OpS, etc., and the instruction unit is provided in the main signal network outside the OLT, for example. It is provided in a place where arithmetic processing is possible, such as the proxy unit 15. Others are the same as in the first configuration example. The 42nd configuration example is an OLT with, for example, a center cloud, a local cloud, an edge cloud, a single external server 16, an information processing unit, an OpS, etc. outside the OLT in the communication system configurations (1-1) to (64-2). It can be applied to any configuration having a place where arithmetic processing can be performed in an external main signal network. It should be noted that the execution unit and the instruction unit are provided in both the center cloud, the local cloud, the edge cloud, the independent external server 16, the information processing unit, the OpS, etc. outside the OLT and the parts capable of arithmetic processing in the main signal network outside the OLT. It may be equipped.

(43rd configuration example)
In the 43rd configuration example, the execution unit is provided in the main signal network outside the OLT, for example, the proxy unit 15, and the instruction unit is provided in the TRx11, for example, the information processing unit, the CPU, or the like where arithmetic processing is possible. Others are the same as in the first configuration example. In the 43rd configuration example, in the communication system configurations (1-1) to (64-2), an arbitrary configuration including, for example, a proxy unit 15 or the like in the main signal network outside the OLT and a TRx11 capable of arithmetic processing. Can be applied to. It should be noted that the execution unit and the instruction unit may be provided in both the proxy unit 15 and the like in the main signal network outside the OLT and the operation-processable portion of the TRx11.

(44th configuration example)
In the 44th configuration example, the execution unit is provided in the main signal network outside the OLT, for example, the proxy unit 15, and the instruction unit is provided in the SW12, for example, the information processing unit, the CPU, or the like where arithmetic processing is possible. Others are the same as in the first configuration example. In the 44th configuration example, in the communication system configurations (1-1) to (64-2), for example, the proxy unit 15 and the like in the main signal network outside the OLT and the SW 12 are provided with an arbitrary configuration capable of arithmetic processing. Can be applied to. It should be noted that the execution unit and the instruction unit may be provided in both the proxy unit 15 and the like in the main signal network outside the OLT and the operation-processable portion of the SW12.

(45th configuration example)
In the 45th configuration example, the execution unit is provided in the main signal network outside the OLT, for example, the proxy unit 15, and the instruction unit is provided in the OSU, for example, the information processing unit, the CPU, or the like where arithmetic processing is possible. Others are the same as in the first configuration example. The 45th configuration example is an arbitrary configuration including, for example, a proxy unit 15 or the like in the main signal network outside the OLT in the communication system configurations (1-1) to (64-2) and a portion capable of arithmetic processing in the OSU. Can be applied to. It should be noted that the execution unit and the instruction unit may be provided in both the proxy unit 15 and the like in the main signal network outside the OLT and the portion capable of arithmetic processing of the OSU.

(46th configuration example)
In the 46th configuration example, the execution unit is provided in the main signal network outside the OLT, for example, the proxy unit 15, and the instruction unit is provided in the SW13, for example, the information processing unit, the CPU, or the like where arithmetic processing is possible. Others are the same as in the first configuration example. In the 46th configuration example, in the communication system configurations (1-1) to (64-2), for example, the proxy unit 15 and the like in the main signal network outside the OLT and the SW 13 are provided with an arbitrary configuration capable of arithmetic processing. Can be applied to. It should be noted that the execution unit and the instruction unit may be provided in both the proxy unit 15 and the like in the main signal network outside the OLT and the operation-processable portion of the SW13.

(47th configuration example)
In the 47th configuration example, the execution unit is provided in, for example, a proxy unit 15 in the main signal network outside the OLT, and the instruction unit can perform arithmetic processing such as the control unit 14, the information processing unit, the control panel, or the CPU panel of the OLT. Prepare for various places. Others are the same as in the first configuration example. The 47th configuration example is applied to the configuration in the communication system configurations (1-1) to (64-2) in which the OLT includes, for example, a proxy unit 15 or the like in the main signal network outside the OLT and a portion capable of arithmetic processing. it can. It should be noted that the execution unit and the instruction unit may be provided in both the proxy unit 15 and the like in the main signal network outside the OLT and the part where the OLT can be calculated.

(48th configuration example)
In the 48th configuration example, the execution unit is provided in, for example, a proxy unit 15 in the main signal network outside the OLD, and the instruction unit is provided in, for example, a center cloud, a local cloud, an edge cloud, a single external server 16, information processing outside the OLD. It is prepared for a part, OpS, etc. where arithmetic processing is possible. Others are the same as in the first configuration example. Note that the 48th configuration example is an arbitrary configuration including, for example, a proxy unit 15 in the main signal network outside the OLT in the communication system configurations (1-1) to (64-2) and a portion capable of arithmetic processing outside the OLT. Can be applied to. It should be noted that the execution unit and the instruction unit may be provided in both the proxy unit 15 and the like in the main signal network outside the OLT and the part capable of performing arithmetic processing outside the OLT.

(49th configuration example)
In the 49th configuration example, the execution unit is provided in the main signal network outside the OLT, for example, the proxy unit 15, and the instruction unit is provided in the main signal network outside the OLT, for example, the proxy unit 15 and the like where arithmetic processing is possible. .. It is preferable that the execution unit is arranged on the PON side of the instruction unit from the viewpoint of response speed, but it may be reversed, it may be on another device at the same position, or it may be on another VM on the same device. Others are the same as in the first configuration example. The 49th configuration example can be applied to any configuration in the communication system configurations (1-1) to (64-2) in which the proxy unit 15 or the like in the main signal network outside the OLT is provided with a place where arithmetic processing can be performed. ..

(50th configuration example)
In the 50th configuration example, the execution unit is provided in the optical SW10, and the instruction unit is provided in the optical SW10, for example, an information processing unit, a CPU, or the like where arithmetic processing is possible. It is preferable that the execution unit is arranged on the PON side of the instruction unit from the viewpoint of response speed, but it may be reversed, it may be on another device at the same position, or it may be on another VM on the same device. Others are the same as in the first configuration example. The 50th configuration example can be applied to any configuration in the communication system configurations (1-1) to (64-2) in which the optical SW10 includes a portion capable of arithmetic processing. It should be noted that the execution unit and the instruction unit may be provided in both of the parts where the calculation of the optical SW10 can be performed.

(51st configuration example)
In the 51st configuration example, the execution unit is provided in the optical SW10, and the instruction unit is provided in a TRx11, for example, an information processing unit, a CPU, or a like where arithmetic processing is possible. Others are the same as in the first configuration example. The 51st configuration example can be applied to any configuration in the communication system configurations (1-1) to (64-2) in which the optical SW10 and TRx11 are provided with arithmetic processing parts. It should be noted that the execution unit and the instruction unit may be provided in both the optical SW10 and the TRx11 where the arithmetic processing can be performed.

(52nd configuration example)
In the 52nd configuration example, the execution unit is provided in the optical SW10, and the instruction unit is provided in the SW12, for example, an information processing unit, a CPU, or a like where arithmetic processing is possible. Others are the same as in the first configuration example. The 52nd configuration example can be applied to any configuration in the communication system configurations (1-1) to (64-2) in which the optical SW10 and SW12 are provided with arithmetic processing parts. It should be noted that the execution unit and the instruction unit may be provided in both the optical SW10 and the SW12 where the arithmetic processing can be performed.

(53rd configuration example)
In the 53rd configuration example, the execution unit is provided in the optical SW10, and the instruction unit is provided in an OSU, for example, an information processing unit, a CPU, or other places where arithmetic processing is possible. Others are the same as in the first configuration example. The 53rd configuration example can be applied to any configuration in the communication system configurations (1-1) to (64-2) in which the optical SW10 and the OSU are provided with arithmetic processing parts. It should be noted that the execution unit and the instruction unit may be provided in both the optical SW10 and the OSU where the arithmetic processing can be performed.

(54th configuration example)
In the 54th configuration example, the execution unit is provided in the optical SW10, and the instruction unit is provided in the SW13, for example, an information processing unit, a CPU, or the like. Others are the same as in the first configuration example. The 54th configuration example can be applied to any configuration in the communication system configurations (1-1) to (64-2) in which the optical SW10 and SW13 are provided with a portion capable of arithmetic processing. It should be noted that an execution unit and an instruction unit may be provided at both the optical SW10 and the SW13 where the arithmetic processing is possible.

(55th configuration example)
In the 55th configuration example, the execution unit is provided in the optical SW10, and the instruction unit is provided in an OLT such as a control unit 14, an information processing unit, a control panel, or a CPU panel, which can perform arithmetic processing. Others are the same as in the first configuration example. The 55th configuration example can be applied to any configuration in the communication system configurations (1-1) to (64-2) in which the optical SW10 and the OLT are provided with arithmetic processing parts. It should be noted that an execution unit and an instruction unit may be provided at both the optical SW10 and the OLT calculation-processable portion.

(56th configuration example)
In the 56th configuration example, the execution unit is provided in the optical SW10, and the instruction unit is located outside the OLT, for example, in a center cloud, a local cloud, an edge cloud, a single external server 16, an information processing unit, an OpS, or the like where arithmetic processing is possible. Be prepared. Others are the same as in the first configuration example. The 56th configuration example can be applied to any configuration in the communication system configurations (1-1) to (64-2) that includes the optical SW10 and a portion that can perform arithmetic processing outside the OLT. It should be noted that the execution unit and the instruction unit may be provided in both the optical SW10 and the portion outside the OLT that can perform arithmetic processing.

(57th configuration example)
In the 57th configuration example, the execution unit is provided in the optical SW10, and the instruction unit is provided in a place in the main signal network outside the OLT where arithmetic processing can be performed, such as the proxy unit 15. Others are the same as in the first configuration example. The 57th configuration example can be applied to any configuration in the communication system configurations (1-1) to (64-2) that includes a portion that can perform arithmetic processing in the optical SW10 and the main signal network outside the OLT. It should be noted that the execution unit and the instruction unit may be provided in both the optical SW10 and the part of the main signal network outside the OLT that can perform arithmetic processing.

(58th configuration example)
In the 58th configuration example, the execution unit is provided in TRx11, and the instruction unit is provided in the optical SW10, for example, an information processing unit, a CPU, or other places where arithmetic processing is possible. Others are the same as in the first configuration example. The 58th configuration example can be applied to any configuration in the communication system configurations (1-1) to (64-2) in which the TRx 11 and the optical SW 10 are provided with arithmetic processing parts. It should be noted that the execution unit and the instruction unit may be provided in both the TRx11 and the optical SW10 where the arithmetic processing can be performed.

(59th Configuration Example)
In the 59th configuration example, the execution unit is provided in the SW12, and the instruction unit is provided in the optical SW10, for example, an information processing unit, a CPU, or a like where arithmetic processing is possible. Others are the same as in the first configuration example. The 59th configuration example can be applied to any configuration in the communication system configurations (1-1) to (64-2) in which the SW12 and the optical SW10 are provided with arithmetic processing parts. It should be noted that the execution unit and the instruction unit may be provided at both the SW12 and the optical SW10 where the arithmetic processing can be performed.

(60th configuration example)
In the 60th configuration example, the execution unit is provided in the OSU, and the instruction unit is provided in the optical SW10, for example, an information processing unit, a CPU, or a like where arithmetic processing is possible. Others are the same as in the first configuration example. The 60th configuration example can be applied to the configurations in the communication system configurations (1-1) to (64-2) in which the OSU and the optical SW10 include a portion capable of arithmetic processing. It should be noted that the execution unit and the instruction unit may be provided in both the OSU and the optical SW10 where the arithmetic processing can be performed.

(61st configuration example)
In the 61st configuration example, the execution unit is provided in the SW13, and the instruction unit is provided in the optical SW10, for example, an information processing unit, a CPU, or a like where arithmetic processing is possible. Others are the same as in the first configuration example. The 61st configuration example can be applied to any configuration in the communication system configurations (1-1) to (64-2) in which the SW13 and the optical SW10 are provided with arithmetic processing parts. An execution unit and an instruction unit may be provided at both the SW13 and the optical SW10 where the arithmetic processing can be performed.

(62nd configuration example)
In the 62nd configuration example, the execution unit is provided in the OLT, for example, the control unit 14, the information processing unit, the control panel, the CPU panel, etc., and the instruction unit is located in the information processing unit of the optical SW10, the CPU, or the like where arithmetic processing is possible. Be prepared. Others are the same as in the first configuration example. In the 62nd configuration example, the OLT in the communication system configurations (1-1) to (64-2), for example, a control unit 14, an information processing unit, a control panel, a CPU panel, or the like and a location where arithmetic processing can be performed on the optical SW10. Can be applied to any configuration provided with. It should be noted that the execution unit and the instruction unit may be provided in both the control unit 14, the information processing unit, the control panel, the CPU panel, and the like of the OLT and the place where the optical SW10 can perform arithmetic processing.

(63rd configuration example)
In the 63rd configuration example, the execution unit is provided outside the OLT, for example, the center cloud, the local cloud, the edge cloud, the independent external server 16, the information processing unit, the OpS, etc., and the instruction unit is the optical SW10, for example, the information processing unit. Prepare for a part such as a CPU that can perform arithmetic processing. Others are the same as in the first configuration example. The 63rd configuration example includes, for example, a center cloud, a local cloud, an edge cloud, an independent external server 16, an information processing unit, an OpS, etc. outside the OLT in the communication system configurations (1-1) to (64-2). It can be applied to any configuration in which the optical SW 10 is provided with a portion capable of arithmetic processing. It should be noted that the execution unit and the instruction unit may be provided in both the center cloud, the local cloud, the edge cloud, the independent external server 16, the information processing unit, the OpS, etc. outside the OLT, and the place where the optical SW10 can perform arithmetic processing. ..

(64th configuration example)
In the 64th configuration example, the execution unit is provided in the main signal network outside the OLT, for example, the proxy unit 15, and the instruction unit is provided in the optical SW10, for example, the information processing unit, the CPU, or the like where arithmetic processing is possible. Others are the same as in the first configuration example. Note that the 64th configuration example is an arbitrary configuration example in which the communication system configurations (1-1) to (64-2) include, for example, a proxy unit 15 or the like in the main signal network outside the OLT and a portion capable of arithmetic processing of the optical SW10. Applicable to configuration. It should be noted that the execution unit and the instruction unit may be provided in both the proxy unit 15 and the like in the main signal network outside the OLT and the operation-processable portion of the optical SW10.

In the first configuration example to the 64th configuration example, an IF for changing the setting or algorithm of the indicator may be provided, and the software of the indicator may be changed. Further, in the first to 64th configuration examples, the instruction unit is a component of the device and is arranged on one component capable of arithmetic processing, but a plurality of constituent elements capable of arithmetic processing. It may be realized by processing on the device, for example, by a plurality of information processing units.

FIG. 7 is a diagram showing an example of the configuration of the optical access system. The OLT shown in the figure is an example of the communication device 100. In the optical access system according to FIG. 7, the ITU-T G.I. Compliant with the 989 series. In FIG. 7, the controller and the external device are not included in the OLT, but are described to illustrate communication with the FASA application API.

The logical model is composed of a FASA application and a FASA platform that provides a FASA application API to the FASA application. The FASA platform includes middleware for FASA application APIs. The middleware for the FASA application API absorbs the differences in the vendors and methods of the hardware and software that make up the FASA platform. A vendor- and method-independent FASA application API set is defined on the middleware for the FASA application API, and the functions required for each service or each telecommunications carrier are realized by replacing the FASA application. Communication between FASA applications and setting management by a controller or the like are performed via middleware for FASA application API. It is also possible that the middleware for FASA application API is not used. The FASA application API set is a common API group used in the FASA application, and the API required for each FASA application is selected from the API set and used.

The connection relationships shown below are examples, and the intervening connections may be non-intervening connections, only a part of a plurality of connection relationships may be connected, or other connections may be used. .. This also applies to other explanations.

The OLT is connected so that the EMS is connected to the setting management application (for example, the low-speed monitoring application (EMS-IF) and the setting / management application) via the IF conversion application connected via the middleware for the FASA application API. The app is placed. The IF conversion application and the setting management application are also connected via the middleware for the FASA application API. The IF conversion application corresponds to an SBI application that converts a command of SBI (South Band Interface) which is a control IF for NE such as OLT from OpS or the like. Here, the IF conversion application is supposed to perform IF conversion, but if the low-speed monitoring application (EMS-IF) and the setting / management application have an API that does not require IF conversion or IF conversion, the IF conversion application will not be provided. It is also good. The low-speed monitoring application (EMS-IF) and the setting / management application are connected to the NE control / management that performs EMS, NE management, etc. via the middleware for the FASA application API. The low-speed monitoring application (OMCI), the MLD proxy application (multicast application), and the power saving application are each connected to the L2 function via the middleware for the FASA application API.

The protection app is connected to the PLOAM engine and the embedded OAM engine via middleware for the FASA application API. The power saving application is connected to the OMCI and PLOAM engine and the L2 function via the middleware for the FASA application API. The ONU registration authentication application and the DWBA application are connected to the PLOAM engine via the middleware for the FASA application API, and the DBA application is connected to the embedded OAM engine via the middleware for the FASA application API. The power saving application may be operated between the protection application, the ONU registration authentication application, the DWBA application, and the DBA application via the middleware for the FASA application API. The high-speed monitoring application is connected to the PLOAM engine via middleware for the FASA application API. The low-speed monitoring application is connected to OMCI via middleware for the FASA application API. The input from the external device is connected to the DBA application via the middleware for the FASA application API. Note that these connections are examples, and input from an external device may be connected to an application other than the DBA application, such as a protection application or a DWBA application. Also, even if the input from an external device is converted to IF via the middleware for FASA application API via the IF conversion application, or connected to the DBA application etc. via the setting / management application via the middleware for FASA application API. Good.

The main functions of the access system and the targets of FASA application are shown in FIGS. 8 and 9. Hereinafter, TWDM-PON is a PON multicast function, a power saving control function, a frequency / time synchronization function, a protection function, a maintenance operation function, an L2 main signal processing function, a PON access control function, and a PON main signal. A case where the processing function is mainly provided will be described as an example. Hereinafter, the PON multicast function, the power saving control function, the frequency / time synchronization function, the protection function, the maintenance operation function, the L2 main signal processing function, the PON access control function, and the PON main signal processing function are described. It is called "8 main functions".

The communication device includes a PON main signal processing function unit 300, a PMD unit 310, a PON access control function unit 320, a maintenance operation function unit 330 (PLOAM processing, OMCI processing), an L2 main signal processing function unit 340, and a PON. It includes a multicast function unit 350, a power saving control function unit 360, a frequency / time synchronization function unit 370, and a protection function unit 380.

Even if the PON main signal processing function unit 300 is connected to the PMD unit 310, the PON access control function unit 320, the maintenance operation function unit 330 (PLOAM processing, OMCI processing), and the L2 main signal processing function unit 340. Good. The PON multicast function unit 350 is connected to a group consisting of a PON main signal processing function unit 300, a PMD unit 310, a PON access control function unit 320, a maintenance operation function unit 330, and an L2 main signal processing function unit 340. You may be. The power saving control function unit 360 is connected to a group consisting of a PON main signal processing function unit 300, a PMD unit 310, a PON access control function unit 320, a maintenance operation function unit 330, and an L2 main signal processing function unit 340. You may be doing it. The frequency / time synchronization function unit 370 is composed of a PON main signal processing function unit 300, a PMD unit 310, a PON access control function unit 320, a maintenance operation function unit 330, and an L2 main signal processing function unit 340. It may be connected. The protection function unit 380 is connected to a group consisting of a PON main signal processing function unit 300, a PMD unit 310, a PON access control function unit 320, a maintenance operation function unit 330, and an L2 main signal processing function unit 340. You may.

The PON main signal processing function unit 300 has a PON main signal processing function. The PON main signal processing function is a group of functions that process the main signal transmitted to and received from the ONU, and in the order of upstream signal processing (downlink processing is in the reverse direction), PHY adaptation, framing, and service adaptation. And may be provided as the processing constituting the PON main signal processing function. These processes may consist of basic processes. The basic processing is synchronous block generation / extraction, scrambling / descramble, FEC decoding / encoding, frame generation / separation, GEM (G-PON Encapsulation Method) encapsulation, fragment processing, and encryption. ..

The PHY adaptation may include synchronous block extraction, descramble, and FEC decoding in the order of upstream signal processing. The PHY adaptation may include FEC encoding, scrambling, and synchronous block generation in the order of downlink signal processing.

The PON main signal processing function unit 300 may realize the equivalent processing by a combination of basic processing without providing the processing of PHY adaptation, framing, or service adaptation. The processing of the PHY adaptation, framing or service adaptation may be in a different order. The PHY adaptation may include, for example, an FEC process other than the PHY adaptation. The PON main signal processing function is difficult to soften.

The PON access control function included in the PON access control function unit 320 is a group of control functions for transmitting and receiving the main signal described above, and has ONU registration or authentication, DBA, and λ setting switching (DWA) as constituent processes. These processes may consist of basic processes. For example, ONU registration or authentication consists of initial processing such as rangening, authentication deletion, registration, start / stop, and DBA includes bandwidth request reception, traffic measurement, history retention, allocation calculation, allocation processing, setting switching calculation, setting switching processing, and setting. Part or all of switching status grasp, λ setting switching is from band request reception, traffic measurement, history retention, allocation calculation, allocation processing, setting switching calculation, setting switching processing, part or all of setting switching status grasp It may be configured. Equivalent processing may be realized by a combination of basic processing without providing ONU registration or authentication, DBA, and λ setting switching (DWA). Moreover, the order may be changed.

In the main functions of the PON access control function unit 320, ONU high-speed activation, BWMap within the DBA cycle, non-instantaneous interruption λ setting switching, and the like are required as necessary. As an example of function sharing, as registration or authentication, time-critical range processing may be performed by the device-dependent unit 110, and subsequent authentication or key exchange may be performed by an application. In the DBA / λ setting switching, a simple iterative process may be performed by the device-dependent unit 110, and the reflection in the ideal state may be used as an application. It is desirable to soften the ONU registration authentication application because it has the concealment of the authentication method, the DBA application has flexible QoS, and the DWA application (including wavelength protection and wavelength sleep) has flexible QoS.

The L2 main signal processing function unit 340 is a function group that transfers and processes the main signal between the PON side port and the SNI side port, and constitutes processing such as MAC learning, VLAN control, path control, and band control. It has priority control and delay control. These processes are basic processes such as address management, classification part (classifier), modification part (modifier, modifier), policer / shaper (Policer / Shaper), XC (Cross Connect), queue (Queue), scheduler ( It may consist of Scheduler), Copy, and Traffic Monitor. Equivalent processing may be realized by a combination of basic processing without providing MAC learning, VLAN control, path control, bandwidth control, priority control, delay control, and copy. Moreover, the order may be changed. The L2 main signal processing function is difficult to soften.

The maintenance operation function of the maintenance operation function unit 330 (PLOAM processing, OMCI processing) is a function group for smooth maintenance and operation of the service by the access device, and as the first processing to be configured, ONU, OSU, OLT, or SW device and service settings (manual, batch, automatic, operation trigger) / management, setting backup, software update such as FW, device control (reset), monitoring of normal function operation, alarm issuance when an error occurs, abnormality Has tests to investigate the range and cause, and support for redundant configurations. These processes may be composed of basic processes such as CLI-IF, device management IF, operation IF, general-purpose config (Config) -IF (Netconf, SNMP, etc.), and table management.
The second process constituting the maintenance / operation function unit 330 includes device status monitoring (CPU / memory / power supply / switching), traffic monitoring, alarm monitoring (ONU error, OLT error), and test (loopback). These processes may be composed of alarm notification, log recording, L3 packet generation / processing, and table management, which are basic processes.
As a third process constituting the maintenance / operation function unit 330, it has monitoring / control input / output (sleep instruction / reply, λ setting switching instruction / reply, etc.) that requires high speed. As a means of this processing, a physical layer OAM (PLOAM: PHYsical Layer OAM) message and a bit display (Embedded OAM) in the header are used. These processes may be composed of PLOAM process, which is a basic process, Embedded OAM process, communication with the power saving control function unit 360, communication with the protection function unit 380, and communication with the PON access control function unit 320.
Equivalent processing may be realized by a combination of basic processing. Moreover, the order may be changed.

As an example of the division of functions of the first process, the process may be performed by the application except for the hardware control, and the software and setting data may be processed by the application on the external server 16 of FIG. 6 without being held by the ONU or OLT. .. It can also be realized by unifying commands and defining sequences.

As an example of the division of functions of the second process, only the notification / display IF is used as an application, and the items that require monitoring (CPU load, memory usage, power status, power consumption, Ethernet (registered trademark) link status, etc.) are It is a device-dependent unit 110, and can be processed by an application that cuts IF, such as reading a notification from the device-dependent unit 110, transmitting a notification to a network (NW), and writing to a file.

In addition, the maintenance operation function is connected to the maintenance operation system that manages a large number of access devices, and realizes smooth maintenance operation even remotely. As for the maintenance operation function, the setting / management application, the low-speed monitoring (OMCI) application, and the high-speed monitoring application can be made into software, and the low-speed monitoring application (ONU / OLT monitoring) depends on the situation. In addition, as an effect of extensibility (differentiation factor) of each function, the setting / management application has the effect of drastically reducing Opex by cooperating with the controller, and the low-speed monitoring application (ONU / OLT monitoring: EMS) has the effect. By cooperating with EMS, it has the effect of drastically reducing Opex.

The PON multicast function of the PON multicast function unit 350 is a group of functions that transfers a multicast stream received from the SNI side to an appropriate user, and as a configuration process, identifies and distributes the multicast stream, and MLD / IGMP proxy / It has snooping, ONU filter setting, multicast (frame processing), and inter-wavelength setting transition. These processes may consist of basic processes such as L2 identification / sorting, L3 packet processing (preferably provided with IPv6 Parse), L3 packet generation, table management, and communication with the OMCI function. Multicast stream identification or distribution, MLD proxy / snooping, ONU filter setting, and inter-wavelength setting transition may realize equivalent processing by a combination of basic processing. Moreover, the order may be changed. The MLD / IGMP proxy application can be softened.

As an example of function sharing, the identification and distribution of multicast (MC) streams can be processed by software if it is a CPU with high-speed processing capability, but hardware + composite is desirable. In addition, the application system and ONU setting for uplink are processed by the application because the frequency and delay restrictions are loose.

The function (access control) of the power saving control function unit 360 is a group of functions for reducing the power consumption of ONUs and OLTs, and in addition to the power saving function specified by standardization, it is linked with a traffic monitor. It may include features to maximize the effect while minimizing the impact on the service. The processing to be configured includes a sleep proxy / traffic monitor, an ONU wavelength setting, and an inter-wavelength setting transition. Even if these processes are composed of basic processes such as L3 packet processing (preferably provided with IPv6 Parse), L3 packet generation, table management, OSU power saving state diagram (SD), and communication with OMCI function. Good. For the sleep proxy / traffic monitor, ONU wavelength setting, and inter-wavelength setting transition, the same processing may be realized by a combination of basic processing. Moreover, the order may be changed.

As an example of the division of functions, a power save (PS) application or, depending on the signal, proxy processing can also be processed by the application. Power saving control State transition management (driver part) requires speed, but it can also be processed by the application. The traffic monitor can be processed by the app only for the config. The power saving application can be made into software. In addition, as an effect of extensibility (differentiation factor) of each function, the power saving application has a flexible QoS effect.

The frequency / time synchronization function of the frequency / time synchronization function unit 370 is a group of functions that provide accurate frequency synchronization and time synchronization to devices under the ONU, and is SyncE (Synchronous Ethernet (registered trademark)) (for frequency synchronization). And IEEE 1588v2 (time synchronization), the function to subordinately synchronize its own real-time clock (RTC) to the host device, and PON's super frame counter (SFC) and absolute time (ToD: Time of Day) information using OMCI. It may include a function of notifying the ONU of the correspondence of the above and notifying the ONU of the time information by using the PON frame. These processes may consist of holding a real-time clock, which is a basic process. Equivalent processing may be realized by a combination of basic processing. Moreover, the order may be changed.

As an example of the division of functions, the real-time clock itself is the device-dependent unit 110, and the time adjustment calculation to the higher-level device can be processed by the application (it can also be the device-dependent unit 110 depending on the accuracy). The frequency / time synchronization function is difficult to soften.

The protection function of the protection function unit 380 continues the service by switching or taking over from the active system to the standby system when a failure is detected in a configuration with multiple hardware such as between SWs and OSUs. This is a functional group for the purpose, and includes switching trigger detection and redundant switching (CT, SW, NNI, Cont, PON (Type A, B, C)) as constituent processes. These processes may be composed of basic processes such as redundant path setting, switching trigger detection, switching notification transmission / reception, and switching processing. Equivalent processing may be realized by a combination of basic processing. Moreover, the order may be changed. The protection algorithm can be softened. In addition, the protection algorithm has the effect of extensibility.

The eight main functions may be provided as needed. For example, only the PON main signal processing function, the PON access control function, the L2 main signal processing function, and the maintenance operation function may be provided, or other functions may be provided. You may. Further, the evaluation of whether or not each function can be made into software is an example on the premise that the processing capacity of OLT expected in 2018 and the application of software SW are not assumed. It may be changed as appropriate assuming the assumed processing capacity and application of the software SW. The function may or may not be softened. The internal configuration of each function may be another configuration as long as the same function can be realized.

The concept and example of whether each function illustrated above is implemented as a FASA application or implemented on a FASA platform will be described. Among the functions, those that need to be changed depending on the service and those that should be expanded to meet the requirements unique to the telecommunications carrier are realized as FASA applications. On the other hand, functions that have little room for expansion because they are specified by standardization etc. are implemented on the FASA platform. For example, it shows that the PON main signal processing function is realized as a FASA platform. In order to realize an access device compliant with the ITU-T G.989 series, it is necessary to implement basic PON main signal processing functions such as frame format, frame encryption, and FEC function according to the standard. Moreover, since these basic functions are common regardless of the service, they are implemented on the FASA platform.

As another example, the figure shows that the DBA function included in the PON access control function "corresponds to a service request" is realized as a FASA application. For example, depending on the service provided, there are cases where low latency is provided and cases where bandwidth is efficiently allocated to a large number of users. In order to meet different requirements for each service, it is desirable to separate the bandwidth allocation procedure and policy as a FASA application from standard processing (standardized, conversion to BWmap format, etc.). In addition, even if the target of the service to be provided is for the same mass, it is conceivable that the policy of fairness may differ, such as the policy of dealing with heavy users differs depending on the telecommunications carrier. For example, a telecommunications carrier that requires fair control with a small granularity such as a PON unit performs fair control even inside the DBA application, and a telecommunications carrier that controls the fairness only with a large granularity such as an access device unit uses the concentrating function. It is assumed that the QoS regulations of.

As described above, in FASA, in order to realize different requirements by replacing FASA applications, a means for replacing FASA applications is required, but what is adopted as the replacement means differs depending on the telecommunications carrier and the operation. For example, when the existing maintenance operation system used by the telecommunications carrier uses TFTP (Trivial File Transfer Protocol) for software update, it is equipped with TFTP and is updated using SFTP (SSH FTP) from outside the maintenance operation system. If the case is provided with SFTP. It is expected that discussions on standardization of the interface between the device and the controller will progress in the future, and it is necessary to consider the addition and change of the interface in line with the progress of standardization. Therefore, a function that needs to be customized according to another system to which the access device is connected and its operation may be realized as a FASA application.

Further, in FASA, not only the protection performed by completely duplicating the entire FASA board but also the protection performed by only a part of the FASA board is assumed. For example, when the FASA board is equipped with an optical SW and supports PON protection, when a single PON is provided with multiple wavelengths and supports wavelength protection, when only the SW is duplicated, or when these are combined, etc. , Multiple redundant configurations are possible. By implementing the protection function as a FASA application, it is possible to support the expected redundant configuration, and by reusing the relevant part, it is possible to easily support various redundant configurations.

Further, the function to be converted into a FASA application, that is, the extended function may be an extended function among the functions that can be converted into software, depending on the importance such as the frequency of updating the function and the realization of original specifications. It is preferable to use middleware for FASA application API, device-dependent software, and hardware other than basic functions and device-independent applications for those with low update frequency or low demand for realization of original specifications. In particular, it is preferable to leave the limited functions due to the processing power of the software as hardware. For example, priority processing of the main signal and functions such as DBA that improve the efficiency of line utilization or contribute to service differentiation, and management that is closely related to the business flow of the operator and requires unique specifications for each operator. From the control function to the extended function.

Therefore, the algorithms included in the eight main functions are the main softening areas. The function used as the software area is the device-independent application unit 130 on the device-independent APIs 21 and 22. For example, the algorithms in the ONU registration or authentication function, the DWBA function, the setting / management / monitoring control function, and the power saving control function that contribute to the differentiation service are treated as the extension function unit 131 in the device-independent application unit 130. The MLD proxy app includes a multicast function.

The extended function unit 131 is used as the extended function unit 131 according to the importance such as the frequency of updating functions and the realization of original specifications in the application. Those with low update frequency or low demand for proprietary specifications are middleware section 120 other than basic function section 132 and device-independent application section 130, device-dependent software, hardware section 111 (PHY), and hardware section 112 (MAC). Is preferable. In particular, it is preferable to leave the limited functions due to the processing capacity of the software as the hardware unit 111 (PHY) and the hardware unit 112 (MAC). For example, priority processing of main signals and functions such as DBA that improve line utilization efficiency or contribute to service differentiation, and management that is closely related to the operator's business flow and requires unique specifications for each operator. From the control function to the extended function unit 131.

FIG. 10 is a diagram showing a flow of signals / information between functional units in a communication device. The figure shows the flow of signals / information between functional units in a communication device, focusing on In / Out of OLT. As shown in the figure, the OLT as a communication device is composed of an API lower processing entity (FASA platform) and an application (FASA application).

The API lower processing entity is the MPCP / DBA processing entity whose OLT input / output target is a transmission instruction and reception notification for MPCP transmission / reception, the OAM processing entity whose OLT input / output target is OAM transmission / reception, and the OLT input / output target is ONU authentication transmission / reception. A certain ONU authentication processing entity, an MLD / IGMP processing entity whose OLT input / output target is MLD / IGMP transmission / reception, another protocol processing entity whose OLT input / output target is other protocol transmission / reception, and main signal processing such as bridge / encryption for OLT input / output It is illustrated by the main signal setting processing entity which is the setting and reference / state acquisition for, and the device management processing entity whose OLT input / output target is OLT hardware, IF, OS, or the like. Here, it is desirable that the transmission instruction and reception notification for MPCP transmission / reception are something like send_frame (* raw_frame); assuming that the driver is directly hit. Seen from the application on the upper side of the API, for the lower processing part of the API, (a) easier (conveniently) and (b) common (between multiple types) compared to processing such as direct driver tapping. , (C) It is desirable that there is a processing entity that conveniently processes it.
In the figure, DBA, ONU management, line management, multicast, EtherOAM, redundancy, device management, alarm management, Netconf agent, and application management are illustrated as applications.

The functional division of the API lower processing entity is illustrated below. The app has a corresponding process. The functional division between the API lower processing entity and the application may be any of the following or other than that, and may be different for each processing entity.

(0) Message through: A message is passed through on the upper side of the API and the ONU / upper NW.

(1) Framing: The message is unframed, decomposed or processed into elements as necessary, and provided to the upper side of the API. Information is passed from the upper part of the API to the lower part of the API. The API lower processing entity is framing. Since the API is highly dependent on each protocol, it may be included in the device-dependent application section. It is desirable that fixed parameters (type values, etc.) are set and retained from the top of the API at the time of initialization. The setting parameter returns to the reference from the top of the API.

(2) Automatic response: The processing entity is responsible for sending and receiving messages that do not require judgment, such as periodic transmission and fixed response. It is desirable that the operation is set in advance from the upper part of the API. For example, response cycle. Notify the result only when notification to the upper part of API is required.

(3) Autonomous judgment: The processing entity is also responsible for processing that involves judgment. Policy settings are made in advance from the top of the API.

This figure is described in accordance with IEEE-compliant 10GEPON, but the same applies to ITU-T and other compliant devices if the corresponding functions and processes are read. In addition, the functions and processing conditions are examples, and may be added, deleted, replaced, or changed as appropriate according to the conditions.

An explanation will be added for each API according to FIG.
For example, assuming that there is basically no time constraint or the processing is lenient, the In / Out of the OLT (FASA application API, etc.) is set / controlled / information notified / acquired (set / controlled) to the OLT itself. It can be roughly divided into three types: API), input / output to ONU (message transmission / reception API with ONU), and other input / output (other API).

When the application supports setting / management, the setting / control API receives, for example, a setting instruction / control message from the controller / EMS by Netconf / YANG, etc., and basically expands the message based on the YANG model, etc. The application instructs the API lower processing entity according to the contents, or transfers the information notification / acquisition of the OLT to the controller / EMS. Message transmission / reception API with ONU, when the application sets / controls or gives some instruction / information acquisition / notification to ONU, for example, assembles a message for ONU and passes it to the API lower processing entity to send instruction or API lower part. Read the message from the processing entity. There are multiple protocols such as extended OAM and OMCI for exchanging messages with ONUs, but the interface can be integrated into message transmission instructions and readings. Other APIs need an interface when linking with devices other than OLT, for example.

An example of a time-constrained process when processing by an application, for example, an API (time-constrained API) such as DBA or sleep that requires high-frequency messaging with an ONU is shown below. For example, in the case of DBA, APIs with time constraints are: (1) Notification of information (for example, all information) regarding permission for upstream transmission from the application to the API subprocessing entity (2) Request for upstream transmission from the API subprocessing entity to the application. Notification of information about (eg, all information). It is desirable that the information passed in the API is a value that does not require recalculation at the destination. This is because the application can only perform algorithm processing and the API subprocessing entity can only process message implementation by reducing the dependency between the application and the API subprocessing entity and increasing the independence.
An example is shown below.

○ Transmission permission amount setting API
Format: fasa_api_set_grant_config (UINT64 sfc, UINT8 ch, int n_of_configs, grant_config_t grant_config []);
argument:
UINT64 sfc; / * superframe counter value ignored by IEEE802.3 * /
UINT8 ch; / * Down wavelength channel ID in TWDM. Ignore if not supported * /
int n_of_configs; / * Number of transmission permissions notified by this API * /
grant_config_t grant_config []; / * Send permission (array of the number of n_of_configs) * /
typedef struct {/ * IEEE802.3 ITU-T G.989 * /
UINT16 id; / * LLID Alloc-ID * /
UINT8 flags; / * Flags Flags / FWI / Burst Profile * /
UINT32 grant_start_time; / * Grant Start Time Start Time * /
UINT16 grant_length; / * Grant Length GrantSize * /
} grant_config_t;

By this API, the application of DBA directly notifies, for example, the transmission permission amount to the API subprocessing entity of DBA. The API subprocessing entity assembles a transmission permission message to the ONU based on the notified transmission permission amount and sends it to the ONU. The operation of IEEE802.3 and ITU-T G.989 will be illustrated.
In the IEEE802.3 Ethernet PON, uplink transmission control is performed by sending a GATE message to the ONU. The destination ONU is identified by the LLID stored in the preamble. The transmission start time is indicated by the grant start time, and the transmission permission amount is indicated by the grant length. The type of transmission permission is specified by the flag fields of Discovery GATE and force report. One GATE message can store up to 4 transmit permissions.

The API lower processing entity that received this API parses the argument and operates as follows.
-Ignore the values of sfc and ch.
-One grant_config corresponds to one Grant / transmission permission (a pair of grant start time and grant length), and there are as many as n_of_configs.
-The lower 15 bits of id are, for example, LLID given to GATE.
The least significant bit of flags is, for example, the discovery flag, and the second bit is the value of force_report.
-For the grant start time, 32 bits are set as the value of the grant start time.
-Grant Length is, for example, a value of Grant Length.
-If there are multiple grant contrasts for one id (LLID), pack them into one GATE message as much as possible. A GATE message can contain up to four grants. The value of numbers in the GATE message is calculated based on the GATE message packed by the API lower processing entity, and the value is stored. The value of force report is calculated by the API lower processing entity based on the number of the grant, and the value is stored.
-Other GATE frame field values are not specified by the application.
-After receiving the API and completing the parsing of the argument, for example, immediately downlink transmission is performed from a completely constructed GATE frame.

The application processing includes the current MPCP local time value, ONU identification, LLID number, RTT value, link status acquisition, notification of QoS parameters (setting values such as maximum bandwidth) for each ONU / LLID, and the like. It is assumed that it is carried out by the process.
In the TWDM-PON of ITU-T G.989.3, the uplink transmission control is performed by notifying the ONU of BWmap. The BWmap is composed of a plurality of allocation structures, and one allocation structure includes one transmission permission. The transmission permission consists of StartTime and GrantSize.
The API lower processing entity that received this API is parsed and operates as follows.

-Mount it on the BWmap of the down frame of the super frame counter that is equal to the value of the received super frame counter.
-BWmap is transmitted downlink in the downlink wavelength channel of DWLCH ID indicated by the value of ch. If TWDM is not supported, this value is ignored.
-One grant structure corresponds to one Allocation structure, and no conforms represents the number of Allocation structures.
-The lower 14 bits of the id are, for example, the Alloc-ID given to the Allocation structure.
The least significant bit, the second bit, the third bit, and the 4th to 5th bits of the flags are, for example, the values of PLOAMu, DBRu, FWI, and Burst Profile in the Flags in the Allocation Structure, respectively.
-Set the lower 32 bits of grant _start time to, for example, the value of Start Time.
-Grant length is, for example, a value of GrantSize.
-One grant structure is, for example, one Allocation structure. HEC in the Allocation Structure is calculated and stored in the API lower processing entity.
-For each API, for example, one BWmap shall be constructed.
-After constructing the BWmap in response to the API, the BWmap is included in the FS header and transmitted in the downlink according to the downlink frame of the superframe counter value specified by this API. In the application, the current superframe counter value, ONU identification, Alloc-ID number association, RTT value acquisition, link state acquisition, etc. are performed by other processes, and the QoS parameter for each Alloc-ID (maximum). Bandwidth, etc.) is assumed to be notified to the application by another process.

○ Transmission request amount acquisition API
Format: fasa_api_get_onu_request (UINT64 sfc, UINT8 ch, int n_of_configs, request_config_t request_config []);
argument:
UINT64 sfc; / * superframe counter value ignored by IEEE802.3 * /
UINT8 ch; / * Up wavelength channel ID in TWDM. Ignore if not supported * /
int n_of_requests; / * Number of send requests notified by this API * /
request_config_t request_config []; / * Send request (array of the number of n_of_configs) * /
typedef struct {/ * IEEE802.3 ITU-T G.989 * /
UINT16 id; / * LLID ONU-ID * /
UINT8 flags; / * QSet / Qreport number Ind * /
UINT32 request; / * queue report value BufOcc value * /
} request_config_t;

With this API, the DBA application directly acquires the information regarding the transmission request received and accumulated in the API lower processing entity. This API takes the form of polling, but it may be a callback. The operation of IEEE802.3 and ITU-T G.989 will be illustrated.

In the IEEE802.3 Ethernet PON, the uplink transmission request is made by the ONU sending a REPORT message to the OLT. The source ONU is identified by the LLID stored in the preamble. The REPORT frame includes one or more pairs of a Report bitmap and a Queue Report called a Queue Set. The number of Queue Sets is represented by number of Queue sets. The value of the transmission request amount is stored in the Queue Report. Up to eight types of Queue Reports can be stored in one Queue Set, and only a Queue Report with a value can be notified. The Report bitmap indicates which of the eight types of Queue Report was notified.

The API lower processing entity that received this API returns information about the transmission request as the return value of the argument, and requests the following operations to return it.
-Accumulate the transmission request information included in the received REPORT frame. Specifically, the LLID, the Queue Set number, the Queue Report number, and the Queue report value indicated by these numbers are accumulated.
-Return these three to the application as the return value of the API argument request config.
-The value of LLID is stored in the argument id.
-The Queue report number 0-7 is stored in the lower 3 bits of the argument flags, and the Queue Set number is stored in the upper 5 bits of the argument flags.
-The value of the queue report corresponding to these numbers is stored in the argument request.
-The stored transmission request information is delivered to the application according to the reading by this API, and the delivered information is deleted or overwritten with new information.
-In the argument sfc, the MPCP local time when the REPORT frame is received in the closest temporal vicinity of the stored transmission request information is stored.

For the application, the current MPCP local time value, ONU identification, LLID number / RTT value acquisition, link status acquisition, etc. are performed by other processes, and the QoS parameters (maximum bandwidth, etc.) for each ONU / LLID are also included. It is assumed that the DBA application is notified by another process. In the TWDM-PON of ITU-T G.989.3, the uplink transmission request is made by the ONU sending the BufOcc in the DBRu to the OLT. The source ONU is identified by the ONU-ID stored in the FS header. The ONU notifies the OLT whether or not the uplink PLOAM message is waiting to be transmitted by the PLOAM queue status bit in the Ind field in the FS header.

The API lower processing entity that received this API returns information about the transmission request as the return value of the argument, and requests the following operations to return it.
-Accumulate the received transmission request information. Specifically, the ONU-ID, BufOcc value, and PLOAM queue status bit value are accumulated.
-Return these three to the application as the return value of the API argument request config.
-The value of ONU-ID is stored in the argument id.
-The PLOAM queue status bit value is stored in the least significant bit of the argument flags.
-The BufOcc value is stored in the argument request.
-If there are multiple Allocations in one burst, the BufOcc values are accumulated in the order of reception. At this time, the ONU-ID value and the PLOAM queue status are the same values for the respective BufOcc values, and although the information is redundant, the simplicity and unification of the API arguments are prioritized.
-The stored transmission request information is delivered to the application according to the reading by this API, and the delivered information is deleted or overwritten with new information.
-In the argument sfc, the Superframe counter value when the BufOcc is received in the closest temporal vicinity of the accumulated transmission request information is stored.

For the application, the current superframe counter value, ONU identification, Alloc-ID number association, RTT value acquisition, link state acquisition, etc. are performed by other processes, and the QoS parameters for each Alloc-ID (maximum). Bandwidth, etc.) is also assumed to be notified to the DBA application by another process. The L2 main signal processing in the OLT is to appropriately transfer user data to each of the upstream and downstream routes. Therefore, the role of the application is to receive instructions by Netconf / YANG or Openflow from EMS / upper OpS, and based on the received instructions.
(1) Forwarding settings for each of the up and down routes (2) Acquisition of statistical information (3) Expanding the forwarding settings to the ONU to the API lower processing entity.
(1) and (2) are processes to expand the settings to the API subprocessing entity based on the YANG model, and (3) is to assemble the settings to the ONU and expand the message transmission instruction to the ONU to the API subprocessing entity. It becomes a process.

The maintenance and operation functions in the OLT can have many functions, but can be roughly divided into (1) setting / operation instruction to the OLT, and (2) status notification of the OLT and ONU.
(1) In the setting / operation instruction, the application receives the instruction by Netconf from the EMS / upper OpS and expands the content to the API lower processing entity based on the YANG model.
(2) In the status notification, the application receives the notification from the API lower processing entity based on the YANG model or the OAM / OMCI message, and notifies the contents to the EMS / upper OpS by Netconf.

The PON multicast function in OLT is mainly used for video distribution and the like, and there are several implementation methods. An outline of these methods will be explained, and an image of function sharing and message flow between the application and the API subprocessing entity will be shown.
Multicast broadcasts the same information to any number of forwarding destinations (which may be one). In general, the forwarding destination of a multicast stream is dynamically controlled in response to a request for joining or leaving a multicast group from a terminal. In many cases, IPv4 IGMPv3 and IPv6 MLDv2 are used as protocols for message such as join request / withdrawal request and multicast transfer control. Here, in a TDM-based PON, the downlink route from the OLT to the ONU is generally logically unicast and physically broadcast, so some ingenuity is required to realize multicast. Three main methods are used: (1) multicast by higher-level nodes, (2) ONU snoop, and (3) OLT proxy. The image of the function division and message flow of each method is shown.

In the method of realizing multicast forwarding by the upper node, ONU and OLT are set to transparently forward the IGMP / MLD message respectively. The multicast stream is transferred to the terminal that issued the participation request by the node higher than the OLT that received the participation request message. At this time, if there is a request to join the same multicast group from terminals under the control of multiple ONUs connected to the same OLT, the upper node transfers the multicast stream to each terminal, so that multiple streams with the same content are OLT. Will be sent to. The OLT transparently transfers the plurality of streams to each ONU as individual unicast streams.

Further, when there is a request to join the same multicast group from a plurality of terminals under the same ONU, it depends on the functional configuration of the ONU and the subordinate nodes. When the ONU or the subordinate node has the multicast router function, the ONU or the subordinate node sends the multicast stream to the participation request from the second terminal without forwarding the participation request message to the OLT and the upper level. Broadcast to the second terminal. In the case of a configuration that does not have the multicast router function, the multicast stream for each terminal is distributed by a node higher than the OLT.

There is also a method of realizing PON multicast by peeping (snooping) the IGMP / MLD message flowing through the ONU. In this method, PON multicast is performed by peeping at the IGMP / MLD message transmitted from the terminal under the ONU to the node (multicast router) higher than the OLT by the ONU. First, the OLT transfers the multicast stream received from the upper node so that all ONUs can receive it. The ONU opens and closes its own downlink transfer filter in response to the peeping IGMP / MLD message.

More specifically, a forwarding filter is set so that the snooped message is forwarded down the traffic of the joining multicast group if it is a join request, and is blocked if it is a leave request. The forwarding / blocking filter setting is performed by a predetermined method using various areas such as an IP address, a MAC address, a VLAN tag, and another identifier. As a result, if the ONU filter is open, the multicast stream transferred from the OLT can be transferred to the lower part of the ONU, and if the filter is closed, the multicast stream received by the ONU from the OLT is the lower part of the ONU. Discarded without being transferred to. This realizes multicast forwarding.

At this time, the application receives an instruction to enable / disable the IGMP / MLD snoop function of ONU by the initial setting by Netconf or the like from the EMS / upper OpS or the service order for the division of functions between the application and the API lower processing entity. In response to this, the API lower processing entity is instructed to send an extended OAM or OMCI message via the communication API with the ONU. The API subprocessing entity sends the instructed message to the ONU and instructs the ONU to enable / disable the snoop function. As a result, the PON multicast is controlled by the ONU snoop.

There is also a method in which the OLT aggregates the IGMP / MLD messages transferred from the ONU to the upper node via the OLT and makes a proxy response while instructing the ONU to open / close the downlink transfer filter. This method is generally the OLT. Called a proxy. Even in this method, the OLT transfers the multicast stream from the upper node so that all ONUs can receive it. The IGMP / MLD message from the terminal at the bottom of the ONU is received once by the OLT and transferred to the upper node according to the content of the message.

If the message is a join request, the OLT instructs the ONU to open the downlink forwarding filter of the corresponding multicast group of the ONU by an extended OAM or OMCI message, and to close the downlink forwarding filter if the message is a withdrawal request. As a result, the multicast stream is transferred only to the terminal for which the participation request has been made, thereby realizing the multicast transfer. At this time, the ONU filter that efficiently multicasts the terminal in consideration of the case where there are multiple terminals under the ONU and the state of the terminal under the ONU different from the ONU that has transferred the IGMP / MLD message. You can also perform operations and transfer messages to higher-level nodes.

At this time, the function sharing between the application and the API lower processing entity is the direction of the main signal in advance so that the application transfers the IGMP / MLD message upstream and transmitted from the ONU to the upper side of the application API after the OLT receives it. Set. This route setting is a part of the main signal setting to the OLT from the application to the API lower processing entity, and is assumed to be set as Netconf / YANG or Openflow. The trigger of the direction setting itself is the setting from EMS / upper OpS. Further, the method of downlink forwarding of the multicast stream is also performed by receiving a setting instruction from EMS / upper OpS by Netconf / YANG or Openflow and expanding the contents to the API lower processing entity.

The OLT proxy function is realized by instructing the API lower processing entity to send an extended OAM or OMCI message that instructs the opening and closing of the ONU downlink filter based on the content of the IGMP / MLD message transferred to the application. To.

In the power saving control function, the ONU stops supplying power to some functions as needed, and the power consumption in the ONU is reduced. The role of the application is to receive the ONU power saving mode settings and service orders from the EMS / upper OpS, assemble an extended OAM / OMCI message based on the content, and notify the API lower processing entity to send this message to the ONU. To do. In addition, the application receives the state change notification by PLOAM or the like from the API lower processing entity.

Similar to the above DBA, if you want to control the state of the power saving mode of the ONU directly from the application, you can assemble the transmission message to the ONU and capture the received message from the ONU in real time. To send a message and give a message reception instruction to the API lower processing entity, respectively.

The frequency / time synchronization function is a function that accurately outputs the reference signal and time information input to the OLT from the ONU via the PON section. The role of the application side is to assemble a transmission message in order to notify the ONU of the settings required for the synchronization function and the parameters related to the signal propagation from the OLT to the ONU, and instruct the API lower processing entity side to transmit the message.

The external cooperation function is used when the function is executed in cooperation with an external device, such as a low-delay DBA with a mobile base station. In the external cooperation function, for example, the application side receives a message from an external device. Since the message receiving function from an external device strongly depends on the implementation, the connection configuration with the external device, and the message format, it is desirable that the role of the application is to receive and parse the message without decomposing it. Further, the standard functions of the installed OS may be utilized, or an original API may be specified.

In the above example, the application processes the algorithm such as DBA, and the API subprocessing entity indicates the processing by messaging. This division of functions is suitable when messaging is common and only the algorithm is changed. It is desirable that the interface has low algorithm dependence because it is versatile.

The configuration according to the first embodiment shown above is the same in the following embodiments, and may be appropriately combined. For example, in FIG. 6, the case where the configuration of the execution unit is only TRx11, SW12 and SW13 is illustrated in FIG. 6, but the parts other than TRx11, SW12 and SW13, the other places, the place where the PON is terminated, and the control The unit 14 may be an execution unit.

(Embodiment 1-2)
Although the configuration used for TWDM-PON is illustrated in the first embodiment, it may be applied to TDM-PON. The TDM-PON is the same as the embodiment 1-1 except that it does not have to have a function of wavelength division multiplexing of the PON section of the ONU-OLT between ONUs such as λ setting switching (DWA). Is.

(Embodiment 1-3)
Although the configuration used for TWDM-PON is illustrated in the first embodiment, it may be applied to WDM-PON. The embodiment 1-3 is the embodiment 1-1, except that the WDM-PON does not have to have a function of time-dividing and multiplexing the band resources of the PON section of the ONU-OLT between ONUs such as DBA. Is similar to.

(Embodiment 1-4)
This embodiment is a combination including OFDM (Orthogonal Frequency Division Multiplexing) -PON, CDM (Code Division Multiplexing) -PON, SCM (Subcarrier Multiplexing) -PON, and core wire division multiplexing.

Although the configuration used for TWDM-PON is illustrated in the first embodiment, it may be applied to a PON that shares resources other than wavelength and time. For example, it may be applied to OFDM-PON that divides and multiplexes the frequency resource of electricity of one wavelength, SCM-PON that divides and multiplexes the frequency resource of electricity of one wavelength, CDM-PON that divides and multiplexes by a code, or core wire division. Multiplexing may be used in combination, space division multiplexing using a multi-core fiber or the like may be used in combination, or wavelength division multiplexing may not be used. The same applies if the function of dividing and multiplexing the wavelength resources of the TWDM-PON by wavelength division multiplexing is read as a function corresponding to the function required for dividing and multiplexing each of the multiplexed resources.

(Embodiment 2)
In the second embodiment, the configuration used for TWDM-PON performs GEM encapsulation. In this case, an adapter for generating a GEM frame is provided in the SW so that the GEM frame is conducted between the SW and other parts. By transferring to SW until GEM encapsulation, the L2 functional part can be excluded from the protocol stack of other parts, and the superimposition of the L2 functional part can be avoided in SW and other parts.

Although TWDM-PON is taken as an example, if the frame for identification in the PON section is handled in the same manner as in the first to second embodiments to the first to fourth embodiments, the same applies to other PONs. The effect of is obtained. For example, in the case of IEEE standard GE-PON, 10GE-PON, etc., instead of the GEM frame, an LLID may be added so that the frame to which the LLID is given conducts between the SW and other parts. Good.

(Embodiment 3)
In the third embodiment, the control information used for the TWDM-PON goes through the SW. In this case, instead of transferring the bridge function-related to the SW, any one of PLOAM, Embedded OAM, and OMCI that retains the control information is framed as necessary and processed via the SW. By inputting / outputting control information via SW, there is an effect that processing other than SW becomes lighter. In addition to the transfer of the third embodiment, the bridge function of the first and second embodiments may be transferred to the SW.

Although TWDM-PON is taken as an example, if the control information is handled in the same manner and processed via SW, the same applies to other PONs as in the first to second embodiments of the first to fourth embodiments. The effect is obtained.

At least a part of the communication device in the above-described embodiment may be realized by a computer. In that case, the program for realizing this function may be recorded on a computer-readable recording medium, and the program recorded on the recording medium may be read by the computer system and executed. The term "computer system" as used herein includes hardware such as an OS and peripheral devices. Further, the "computer-readable recording medium" refers to a portable medium such as a flexible disk, a magneto-optical disk, a ROM, or a CD-ROM, or a storage device such as a hard disk built in a computer system. Further, a "computer-readable recording medium" is a communication line for transmitting a program via a network such as the Internet or a communication line such as a telephone line, and dynamically holds the program for a short period of time. In that case, a program may be held for a certain period of time, such as a volatile memory inside a computer system serving as a server or a client. Further, the above program may be for realizing a part of the above-mentioned functions, and may be further realized for realizing the above-mentioned functions in combination with a program already recorded in the computer system. It may be realized by using a programmable logic device such as FPGA (Field Programmable Gate Array).

Although the embodiment of the present invention has been described in detail with reference to the drawings, the specific configuration is not limited to this embodiment. The above-described embodiment is merely an example, and the present invention can be implemented in a form in which various modifications and improvements have been made based on the knowledge of those skilled in the art, and includes a design within a range that does not deviate from the gist of the present invention. ..

1 ... PON system, 2 ... ONU, 3 ... ODN, 4 ... OLT, 5 ... controller, 6 ... controller, 10 ... optical switch unit, 11 ... transmission / reception unit, 12 ... switch unit, 13 ... switch unit, 14 ... control unit , 15 ... Proxy part, 16 ... External server, 21 ... Device-independent API, 22 ... Device-independent API, 23 ... Device-dependent API, 24 ... Device-dependent API, 25 ... Device-dependent API, 26 ... API, 27 ... Device Independent API, 101 ... Fluctuation determination unit, 102 ... Fluctuation handling processing unit, 110 ... Device dependent unit, 111 ... Hardware unit, 112 ... Hardware unit, 113 ... Software unit, 114 ... OAM unit, 114a ... Embedded OAM engine , 114b ... PLOAM engine, 115 ... NE management / control unit, 115a ... NE management unit, 115b ... NE control, 120 ... middleware unit, 121 ... middleware unit, 130 ... device-independent application unit, 131 ... extended function unit, 131 -1 ... Extended function unit, 131-2 ... Extended function unit, 131-3 ... Extended function unit, 132 ... Basic function unit, 133 ... Management / control agent unit, 140 ... EMS, 150 ... Device-dependent application unit, 160 ... External device, 300 ... PON main signal processing function unit, 310 ... PMD unit, 320 ... PON access control function unit, 330 ... maintenance operation function unit, 340 ... L2 main signal processing function unit, 350 ... PON multicast function unit, 360 ... Power saving control function unit, 370 ... Frequency / time synchronization function unit, 380 ... Protection function unit

Claims (10)

A first component having at least an arithmetic processing function for calculating the band allocation or the transmission permission time specified by the transmission permission instruction, and a second component having a transmission function for transmitting the transmission permission instruction based on the calculation of the first component . A fluctuation handling processing unit that performs a process of suppressing fluctuations in either or both of the first component and the second component when fluctuations occur between the components.
With
As a process of suppressing the fluctuation, the fluctuation handling processing unit synchronizes the allocation cycle and the Polling cycle, transmits the transmission permission instruction after a predetermined time has elapsed based on the fluctuation statistical value, and gives priority to the transmission permission instruction. A fluctuation-responsive processing device that performs at least one of the transmission processes. At least the time included in the transmission permission instruction based on the calculation of the first component having an arithmetic processing function for calculating the band allocation or the transmission permission time specified in the transmission permission instruction, and the transmission permission instruction based on the calculation of the first component. When there is a fluctuation in the difference from the transmission time of the second component having a transmission function for transmitting the first component, the fluctuation is suppressed for either or both of the first component and the second component. Fluctuation response processing unit, which performs processing
Equipped with a,
As processing for suppressing the fluctuation, the fluctuation handling processing unit synchronizes the allocation cycle and the Polling cycle, transmits a transmission permission instruction after a predetermined time has elapsed based on the fluctuation statistical value, and preferentially transmits the transmission permission instruction. A fluctuation-responsive processing device that performs at least one of the processing . A fluctuation judgment unit that determines parts that are fluctuating,
In the fluctuation determination unit, a first component having an arithmetic processing function for calculating at least a band allocation or a transmission permission time instructed by a transmission permission instruction, and a transmission for transmitting the transmission permission instruction based on the calculation of the first component. When it is determined that fluctuations have occurred between the second component having a function, a process of suppressing the fluctuations is performed on either or both of the first component and the second component. Fluctuation handling processing unit and
Fluctuation-responsive processing device equipped with. A fluctuation judgment unit that determines parts that are fluctuating,
The time included in the transmission permission instruction based on the calculation of the first component having an arithmetic processing function for calculating at least the band allocation or the transmission permission time specified in the transmission permission instruction in the fluctuation determination unit, and the time of the first component. When it is determined that the difference from the transmission time of the second component having the transmission function for transmitting the transmission permission instruction based on the calculation is fluctuating, the first component or the second component A fluctuation handling processing unit that performs processing to suppress fluctuations for either or both, and
Fluctuation-responsive processing device equipped with. The fluctuation determination unit determines that fluctuation has occurred in the first component when any of interruption, paging, and memory conflict has occurred, and either of the polling wait and the conflict with downlink data. It is determined that fluctuations have occurred in the second component when polling has occurred, and fluctuations have occurred in both the first component and the second component when an interrupt wait has occurred. Judge that it is occurring,
The fluctuation-responsive processing device according to claim 3 or 4. A first component having at least an arithmetic processing function for calculating the band allocation or the transmission permission time specified by the transmission permission instruction, and a second component having a transmission function for transmitting the transmission permission instruction based on the calculation of the first component . Fluctuation handling processing step, which performs a process of suppressing fluctuations in either or both of the first component and the second component when fluctuations occur between the components.
Have,
In the fluctuation handling processing step, as processing for suppressing the fluctuation, synchronization of the allocation cycle and the polling cycle, transmission of the transmission permission instruction after a lapse of a predetermined time obtained based on the fluctuation statistical value, and priority of the transmission permission instruction. A fluctuation suppression method that performs at least one of the transmission processes . At least the time included in the transmission permission instruction based on the calculation of the first component having an arithmetic processing function for calculating the band allocation or the transmission permission time specified in the transmission permission instruction, and the transmission permission instruction based on the calculation of the first component. When there is a fluctuation in the difference from the transmission time of the second component having a transmission function for transmitting the first component, the fluctuation is suppressed for either or both of the first component and the second component. Has a fluctuation response processing step, which performs processing,
In the fluctuation handling processing step, as processing for suppressing the fluctuation, synchronization of the allocation cycle and the polling cycle, transmission of the transmission permission instruction after the elapse of a predetermined time obtained based on the fluctuation statistical value, and priority transmission of the transmission permission instruction. A fluctuation suppression method that performs at least one of the processes . Fluctuation judgment step to judge the part where fluctuation is occurring, and
In the fluctuation determination step, at least the first component having an arithmetic processing function for calculating the band allocation or the transmission permission time specified by the transmission permission instruction, and the transmission of transmitting the transmission permission instruction based on the calculation of the first component. When it is determined that fluctuations have occurred between the second component having a function, a process of suppressing the fluctuations is performed on either or both of the first component and the second component. Fluctuation handling processing steps and
Fluctuation suppression method including. Fluctuation judgment step to judge the part where fluctuation is occurring, and
In the fluctuation determination step, at least the time included in the transmission permission instruction based on the calculation of the first component having an arithmetic processing function for calculating the band allocation or the transmission permission time specified in the transmission permission instruction, and the time of the first component. When it is determined that the difference from the transmission time of the second component having the transmission function for transmitting the transmission permission instruction based on the calculation is fluctuating, the first component or the second component Fluctuation response processing step that performs processing to suppress fluctuation for either or both, and
Fluctuation suppression method having. A computer program for operating a computer as the fluctuation-responsive processing device according to any one of claims 1 to 5.

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