CN116436514B - Multiple bypass optical port line, protection system and protection method - Google Patents
Multiple bypass optical port line, protection system and protection method Download PDFInfo
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- CN116436514B CN116436514B CN202310677888.1A CN202310677888A CN116436514B CN 116436514 B CN116436514 B CN 116436514B CN 202310677888 A CN202310677888 A CN 202310677888A CN 116436514 B CN116436514 B CN 116436514B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B10/00—Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
- H04B10/03—Arrangements for fault recovery
- H04B10/038—Arrangements for fault recovery using bypasses
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D30/00—Reducing energy consumption in communication networks
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Abstract
The invention discloses a multiple bypass optical port circuit, which comprises a WAN port, an optical splitter, a first optical switch, a second optical switch and a converging and diverging equipment module; the WAN port comprises a downlink port and an uplink port; the beam splitter comprises a downlink beam splitter and an uplink beam splitter; the first optical switch is respectively connected with the light splitting branches of the downlink light splitter and the uplink light splitter, the output end of the second optical switch and the converging and diverging equipment module, and the converging and diverging equipment module is used for connecting service end equipment; the input end of the second optical switch is connected with an uplink shunt port of the converging and shunting equipment module. When the node is interrupted, the optical path can be switched, so that the whole communication of the optical port line is kept uninterrupted, the normal operation of the protection system can be ensured when the optical path is blocked, and compared with the prior art, a more stable and efficient protection mechanism is newly added, the safety of the optical path protection function is higher, and the service quality of operators is improved.
Description
Technical Field
The invention relates to the technical field of network communication, in particular to a multiple bypass optical port line, a protection system and a protection method.
Background
The intelligent optical path protection system is a device or system for realizing non-blocking communication by utilizing an optical fiber communication technology and an optical switch technology to intelligently protect or switch an optical fiber communication line, a bypass and a ring network. The main application is as follows: line redundancy protection, automatic switching protection, bypass shunt protection, and self-healing loop protection. Bypass refers to a system that allows two networks to be physically turned on directly without passing through a network security device through a specific trigger state (power down or dead halt).
Considering that the prior art cannot meet the increasing demands that operators need to protect the existing backup of the ring network optical line, and can synchronously extract, analyze and process the ring network optical link information and report the alarm information, thereby being convenient for comprehensive management. Therefore, the multi-bypass optical port line, the protection system and the protection method are convenient to operate and use and capable of protecting the optical path.
Disclosure of Invention
The invention aims to solve the defects in the prior art, and provides a multiple bypass optical port line, a protection system and a protection method, which can switch optical paths when a node is interrupted, so that the whole communication of the optical port line is kept uninterrupted, and further, the normal operation of the protection system can be ensured when the optical paths are blocked, compared with the prior art, a more stable and efficient protection mechanism is newly added, the safety of the optical path protection function is higher, and the service quality of operators is improved.
In order to achieve the above object, the present invention provides the following technical solutions:
a multiple bypass optical port line comprises a WAN port, an optical splitter, a first optical switch, a converging and diverging equipment module and a second optical switch; the WAN port comprises a downlink port and an uplink port; the beam splitter comprises a downlink beam splitter and an uplink beam splitter;
the first optical switch is respectively connected with the light splitting branches of the downlink light splitter and the uplink light splitter, the output end of the second optical switch and the converging and diverging equipment module, and the converging and diverging equipment module is used for connecting service end equipment; and the input end of the second optical switch is connected with an uplink shunt port of the converging and shunting equipment module.
The optical path switching device has the advantages that the optical path switching can be performed when the node in the optical path is abnormal through the structure, so that the whole communication of an optical port line is kept uninterrupted, the normal operation of a protection system can be ensured when the optical path is completely blocked, compared with the prior art, a more stable and efficient protection mechanism is newly added, the safety of an optical path protection function is higher, and the service quality of operators is improved.
Preferably, the first optical switch comprises a first input contact, a second input contact, a first output contact and a second output contact, the first optical switch is used for switching a path between the first input contact and the first output contact and between the first output contact and the second output contact, and the second input contact is connected with the second output contact;
the convergence and distribution equipment module comprises a first downlink distribution port, a second downlink distribution port, a first uplink distribution port, a second uplink distribution port and a LAN port for connecting service end equipment, wherein the first downlink distribution port and the second downlink distribution port are both connected with a transmitting end of the LAN port, the first downlink distribution port is also connected with the second uplink distribution port, and the first uplink distribution port is connected with a receiving end of the LAN port;
the second optical switch comprises a third input contact, a fourth input contact and a third output contact, and is used for switching a passage between the third input contact and the third output contact and between the fourth input contact and the third output contact;
the incident end of the downlink optical splitter is connected with a downlink port in the WAN port, and the first input contact of the first optical switch is connected with one optical splitter branch of the downlink optical splitter; the first downstream shunt port is connected with a first output contact through an optical amplifier, the first upstream shunt port is connected with a third input contact through the optical amplifier, the second downstream shunt port is connected with a fourth input contact through the optical amplifier, and the third output contact is connected with a second input contact; the incident end of the uplink beam splitter is connected with the second output end of the first optical switch, and the uplink port in the WAN port is connected with one beam splitter branch of the uplink beam splitter; the second downstream split port is connected with the other split branch of the upstream optical splitter through an optical amplifier.
Through the structure, the looped network optical link enters the multi-bypass optical port line through the WAN port, and the optical port line is realized by switching the optical paths through the first optical switch, the second optical switch and the converging and diverging equipment module and based on the connection between the first optical switch and the second optical switch and the converging and diverging equipment module: when a plurality of nodes such as a WAN port, service end equipment, a convergence and distribution equipment module, a LAN port of the convergence and distribution equipment module and the like are interrupted, the switching of the optical paths can be performed.
Preferably, a TAP port is further included, said TAP port being connected to another optical branch of the downstream optical splitter.
The access TAP port is used for monitoring the WAN port and providing a fault safety protection technology, so that even if power interruption occurs, real-time data can continue to flow, and the network safety of the multiple bypass optical port line is improved.
Preferably, two WAN ports and the splitter are provided, the first optical switch further includes a fifth input contact, a sixth input contact, a fifth output contact and a sixth output contact, the second optical switch further includes a seventh input contact, an eighth input contact and a fourth output contact, and downlink data of each WAN port is uplink from another WAN port.
Through the structure, a plurality of WAN ports are provided, and if one WAN port at one end is down, the WAN port at the other end can still transmit and receive data to realize that the communication is kept uninterrupted; and the speed of each WAN port can be independently configured, and each WAN port adopts a QSFP28 optical module, has a self-adaptive function and can adapt to different speeds.
The multiple bypass protection system comprises the multiple bypass optical port line and further comprises:
a node monitoring module; the node monitoring module is used for monitoring the data transmission state of each node and generating node abnormality information when signal abnormality occurs;
the input end of the CPU is connected with the transmitting end of the node monitoring module;
the memory is connected with the CPU and used for storing control instructions;
the receiving end of the optical path switching module is connected with the output end of the CPU, and the path switching module executes a control instruction to switch the paths of the first optical switch, the second optical switch and the converging and diverging equipment module.
Through the structure, the optical power of each port (LAN port and WAN port) is monitored in real time, abnormal information is output and a control instruction is sent when the conditions of strong or weak light, down of the port, abnormal data receiving and transmitting and the like occur, the optical path is switched, the protection system for the backup of the optical fiber line can be used for automatically identifying the optical path signal state of the main system and the backup system and carrying out the optical path instantaneous switching, thereby ensuring that the protection system operates normally when the main optical cable and the backup optical cable are blocked completely and improving the service quality of operators.
Preferably, the system further comprises a timer, wherein the timer is respectively connected with the node monitoring module and the CPU.
Through the structure, firstly, interruption of a system light path signal caused by interruption of service end equipment can be avoided, secondly, the light path can be switched in time, and no matter an operator waits for the service end equipment to restore the path or directly stops testing the service end equipment, the signal can be kept from being interrupted.
Preferably, the receiving end of the CPU is further in communication connection with the convergence and distribution equipment module.
With the above structure, when the service side device transmits an APi command, the CPU can receive the command, thereby switching the optical path.
A multiple bypass protection method comprising the steps of:
monitoring the data transmission state of each node, and generating node abnormality information when signal abnormality occurs;
searching a corresponding control instruction according to the node abnormality information;
and switching the paths of the first optical switch, the second optical switch and the converging and diverging equipment module according to the control instruction, keeping the communication of the optical port line uninterrupted, and completing the protection of the optical port line.
By the method, the optical power of each port (LAN port and WAN port) is monitored in real time, abnormal information is output and a control instruction is sent when the conditions of strong or weak light, down of the ports or abnormal data receiving and transmitting occur, and the like, so that the optical path is switched, the protection system for the optical fiber line backup can be realized, the optical path signal states of the main and standby systems can be automatically identified, the optical path is instantaneously switched, the normal operation of the protection system can be ensured when the main and standby optical cables are blocked, and the service quality of operators is improved.
Preferably, after the switching the paths of the first optical switch, the second optical switch and the converging and diverging device module, the method further includes:
if the node is not recovered within a certain time after the abnormality occurs, a control instruction is secondarily output;
and further switching the passage according to the control instruction.
By the method, the interruption of the system light path signal caused by the interruption of the service end equipment can be avoided, and the light path can be switched in time, so that no matter an operator waits for the service end equipment to restore the path or directly stops testing the service end equipment, the signal can be kept from being interrupted.
Preferably, the method further comprises:
and receiving a control instruction, and switching the passage according to the control instruction.
By the method, when the service end equipment sends the APi command, the CPU can receive the command, so that the optical path is switched.
A readable storage medium having stored therein a computer program for implementing the method described above when executed by a processor.
Compared with the prior art, the invention has the beneficial effects that: through the switching of first optical switch, second optical switch and gathering the reposition of redundant personnel equipment module to the light path to and based on its connection each other, make this optical port circuit realize when the node appears breaking, can carry out the switching of optical path, thereby play and keep the holistic communication of optical port circuit to not break off, and then can ensure when the optical path takes place the full hindrance, protection system operation is normal, compared with prior art, newly-increased more stable more efficient protection mechanism, optical path protect function's security is higher, the service quality of operator is improved.
Drawings
FIG. 1 is a schematic diagram of a multiple bypass optical port circuit according to the present invention;
FIG. 2 is a schematic diagram of a multiple bypass protection system according to the present invention;
FIG. 3 is a flow chart of a multiple bypass protection method according to the present invention;
FIG. 4 is a flowchart of a timer used in a multiple bypass protection method according to the present invention.
In the figure: 1. a WAN port; 1.1, a downlink port; 1.2, uplink ports; 2. a beam splitter; 2.1, a downlink beam splitter; 2.2, an uplink beam splitter; 3. a first optical switch; 3.1, a first input contact; 3.11, a first output contact; 3.2, a second input contact; 3.21, a second output contact; 3.3, fifth input contact; 3.31, fifth output contact; 3.4, sixth input contact; 3.41, sixth output contact; 4. A second optical switch; 4.1, a third input contact; 4.2, third output contact; 4.3, fourth input contact; 4.4, fourth output contact; 4.5, seventh input contact; 4.6, eighth input contact; 5. a converging and diverging device module; 5.1, a first downlink split port; 5.2, a second downlink split port; 5.3, a first uplink shunt port; 5.4, a second uplink shunt port; 5.5, LAN ports; 5.51, a transmitting end; 5.52, a receiving end; 6. Service end equipment; 7. a node monitoring module; 8. a CPU; 9. a memory; 10. an optical path switching module; 11. a timer.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Referring to fig. 1, the present invention provides the following technical solutions: a multiple bypass optical port line comprises a WAN port 1, an optical splitter 2, a first optical switch 3, a converging and diverging equipment module 5 and a second optical switch 4; WAN port 1 includes downstream port 1.1 and upstream port 1.2; the beam splitter 2 comprises a downlink beam splitter 2.1 and an uplink beam splitter 2.2;
the first optical switch 3 is respectively connected with the beam splitting branches of the downlink beam splitter 2.1 and the uplink beam splitter 2.2, the output end of the second optical switch 4 and the convergence and splitting equipment module 5, and the convergence and splitting equipment module 5 is used for connecting service end equipment 6; the input end of the second optical switch 4 is connected with an uplink shunt port of the convergence and shunt equipment module 5.
As an optional implementation scheme of the invention, when the node in the optical path is abnormal, the optical path can be switched, so that the whole communication of the optical port line is kept uninterrupted, and further, when the optical path is completely blocked, the normal operation of a protection system can be ensured, and compared with the prior art, a more stable and efficient protection mechanism is newly added, the safety of the optical path protection function is higher, and the service quality of operators is improved.
Specifically, the first optical switch 3 includes a first input contact 3.1, a second input contact 3.2, a first output contact 3.11, and a second output contact 3.21, the first optical switch 3 is configured to switch a path between the first input contact 3.1 to the first output contact 3.11 and between the first output contact 3.11 to the second output contact 3.21, and the second input contact 3.2 is connected to the second output contact 3.21;
the convergence and splitting device module 5 comprises a first downlink splitting port 5.1, a second downlink splitting port 5.2, a first uplink splitting port 5.3 and a second uplink splitting port 5.4, and a LAN port 5.5 for connecting the service end device 6, wherein the first downlink splitting port 5.1 and the second downlink splitting port 5.2 are both connected with a transmitting end 5.51 of the LAN port 5.5, the first downlink splitting port 5.1 is also connected with the second uplink splitting port 5.4, and the first uplink splitting port 5.3 is connected with a receiving end 5.52 of the LAN port 5.5;
the second optical switch 4 comprises a third input contact 4.1, a fourth input contact 4.3 and a third output contact 4.2, the second optical switch 4 being arranged to switch the path between the third input contact 4.1 to the third output contact 4.2 and the fourth input contact 4.3 to the third output contact 4.2;
the incident end of the downlink optical splitter 2.1 is connected with the downlink port 1.1 in the WAN port 1, and the first input contact 3.1 of the first optical switch 3 is connected with one of the optical splitter branches of the downlink optical splitter 2.1; the first downstream shunt port 5.1 is connected with the first output contact 3.11 through an optical amplifier, the first upstream shunt port 5.3 is connected with the third input contact 4.1 through the optical amplifier, the second downstream shunt port 5.2 is connected with the fourth input contact 4.3 through the optical amplifier, and the third output contact 4.2 is connected with the second input contact 3.2; the incident end of the uplink optical splitter 2.2 is connected with the second output end of the first optical switch 3, and the uplink port 1.2 in the WAN port 1 is connected with one optical splitter branch of the uplink optical splitter 2.2; the second downstream split port 5.2 is connected to the other splitting branch of the upstream splitter 2.2 via an optical amplifier.
The optical path mainly comprises three path states:
k0 hard pass state: the first input contact 3.1 in the first optical switch 3 is connected with the second output contact 3.21, and the second downlink shunt port 5.2 in the convergence shunt device module 5 is connected with the transmitting end 5.51 of the LAN port 5.5; the optical path of the uplink port 1.2 and the optical path of the downlink port 1.1 are communicated;
k1 soft pass state: a first input contact 3.1 in the first optical switch 3 is connected with a first output contact 3.11, a fourth input contact 4.3 in the second optical switch 4 is connected with a third output contact 4.2, and a first downlink shunt port 5.1 in the converging and shunting equipment module 5 is connected with a second uplink shunt port 5.4;
k2 traffic state: the first input contact 3.1 in the first optical switch 3 is connected to the first output contact 3.11, the third input contact 4.1 in the second optical switch 4 is connected to the third output contact 4.2, the first downstream split port 5.1 in the convergence split device module 5 is connected to the transmitting end 5.51 of the LAN port 5.5, and the first upstream split port 5.3 is connected to the receiving end 5.52 of the LAN port 5.5.
As an optional implementation manner of the present invention, the looped network optical link enters the present multiplex bypass optical port line through the WAN port 1, and the optical port line is realized by switching the optical paths of the first optical switch 3, the second optical switch 4 and the converging and diverging device module 5 and based on the connection between them: when the WAN port 1, the service end device 6, the convergence and distribution device module 5, the LAN port 5.5 of the convergence and distribution device module 5 and other nodes are interrupted, the optical path can be switched, so that the whole communication of the optical port line is kept uninterrupted.
Specifically, a TAP port is also included, which is connected to another optical branch of the downstream optical splitter 2.1.
As an alternative implementation mode of the invention, the WAN port 1 is monitored by the access TAP port, the fault safety protection technology is provided, and even if power interruption occurs, real-time data can continue to flow, so that the network safety of the multiple bypass optical port line is improved.
Specifically, two WAN ports 1 and optical splitters 2 are provided, the first optical switch 3 further includes a fifth input contact 3.3, a sixth input contact 3.4, a fifth output contact 3.31 and a sixth output contact 3.41, the second optical switch 4 further includes a seventh input contact 4.5, an eighth input contact 4.6 and a fourth output contact 4.4, and downlink data of each WAN port 1 is uplink from another WAN port 1.
As an alternative implementation manner of the present invention, a plurality of WAN ports 1 are provided, if one WAN port 1 drops, the WAN port 1 at the other end can still transmit and receive data to realize that the communication is kept uninterrupted; and the rate of each WAN port 1 can be independently configured, and each WAN port 1 adopts a QSFP28 optical module, has an adaptive function and can adapt to different rates.
Referring to fig. 2, a multiple bypass protection system includes the above-mentioned multiple bypass optical port line, and further includes:
a node monitoring module 7; the node monitoring module 7 is used for monitoring the data transmission state of each node and generating node abnormality information when signal abnormality occurs;
the input end of the CPU8 is connected with the transmitting end 5.51 of the node monitoring module 7;
a memory 9, the memory 9 being connected to the CPU8, the memory 9 being for storing control instructions;
the light path switching module 10, the receiving end 5.52 of the light path switching module 10 is connected with the output end of the CPU8, the light path switching module executes control instructions to switch the paths of the first optical switch 3, the second optical switch 4 and the converging and diverging equipment module 5, and the light path switching module 10 adopts an MCU microcontroller.
As an optional implementation manner of the present invention, the node monitoring module 7 monitors the optical power of each port (LAN port 5.5 and WAN port 1) in real time, and outputs abnormal information when the light is stronger or weaker, the port down is lost or the data is transmitted and received abnormally, and the like, and the CPU8 sends a control instruction according to the abnormal information, so that the optical path switching module 10 switches the paths of the first optical switch 3, the second optical switch 4 and the converging and diverging device module 5, so that the present embodiment can be used in a protection system for optical fiber line backup, and can automatically identify the optical path signal states of the main and standby systems, and perform optical path instantaneous switching, thereby ensuring that the protection system operates normally when the main and standby optical cables are completely blocked, and improving the service quality of operators.
Specifically, the node monitoring module 7 and the CPU8 are connected to each other by a timer 11, and the timer 11 is connected to each other.
As an optional implementation manner of the present invention, specifically, when the upstream port 1.2 of the WAN port 1 does not send data, it is detected that the downstream port 1.1 and the LAN port are normal (i.e. the service end device 6 is interrupted), the third input point in the second optical switch 4 is switched to the fourth input point, the first downstream split port 5.1 in the convergence split device module 5 is switched to be connected to the second upstream split port 5.4, if the interrupted upstream port 1.2 does not restore the path within 5min, an output instruction causes the first optical switch 3 to switch the first input contact 3.1 to be connected to the second output contact 3.21, and the convergence split device module 5 switches the second downstream split port 5.2 to be directly connected to the sending end 5.51 of the LAN port 5.5; firstly, interruption of the system optical path signal caused by interruption of the service end equipment 6 can be avoided, secondly, the optical path can be switched in time, and no matter an operator waits for the service end equipment 6 to restore the path or directly stops testing the service end equipment 6, the signal can be kept from interruption.
Specifically, the receiving end 5.52 of the CPU8 is further in communication connection with the convergence and splitting device module 5, and when the service end device 6 sends an APi command, the CPU8 can receive the command, thereby switching the optical path; the CPU8 may also directly receive a control instruction of the network management, and the operator may directly switch the optical path.
Referring to fig. 3, a multiple bypass protection method includes the following steps:
monitoring the data transmission state of each node, and generating node abnormality information when signal abnormality occurs;
searching a corresponding control instruction according to the node abnormality information;
and switching the paths of the first optical switch 3, the second optical switch 4 and the converging and diverging equipment module 5 according to the control instruction, keeping the communication of the optical port line uninterrupted, and completing the protection of the optical port line.
As an optional implementation manner of the invention, by monitoring the optical power of each port (LAN port 5.5 and WAN port 1) in real time, when the conditions of stronger or weaker light, down of the port or abnormal data receiving and transmitting occur, the CPU8 outputs abnormal information, and sends a control instruction according to the abnormal information, so that the optical path switching module 10 switches the paths of the first optical switch 3, the second optical switch 4 and the converging and diverging equipment module 5, therefore, the implementation manner can be used for a protection system for optical fiber line backup, can automatically identify the optical path signal states of a main system and a standby system, and can perform optical path instantaneous switching, thereby ensuring that the protection system operates normally when the main optical cable and the standby optical cable are blocked completely, and improving the service quality of operators.
Referring to fig. 4, after switching the paths of the first optical switch 3, the second optical switch 4 and the converging and diverging device module 5, the method further includes:
if the node is not recovered within a certain time after the abnormality occurs, a control instruction is secondarily output;
the path is further switched according to the control instruction.
As an alternative implementation manner of the present invention, when the upstream port 1.2 of the WAN port 1 does not transmit data, it is detected that the downstream port 1.1 and the LAN port are normal (i.e. the service end device 6 is interrupted), the third input point in the second optical switch 4 is switched to the fourth input point, the first downstream port 5.1 in the convergence and splitting device module 5 is switched to be connected to the second upstream port 5.4, if the interrupted upstream port 1.2 does not restore the path within 5min, an output instruction causes the first optical switch 3 to switch the first input contact 3.1 to be connected to the second output contact 3.21, and the convergence and splitting device module 5 switches the second downstream port 5.2 to be directly connected to the transmitting end 5.51 of the LAN port 5.5; firstly, interruption of the system optical path signal caused by interruption of the service end equipment 6 can be avoided, secondly, the optical path can be switched in time, and no matter an operator waits for the service end equipment 6 to restore the path or directly stops testing the service end equipment 6, the signal can be kept from interruption.
Specifically, the method further comprises the following steps:
receiving the control instruction and switching the path according to the control instruction, when the service side device 6 transmits the APi command, the CPU8 can receive the command, thereby switching the optical path.
A readable storage medium having stored therein a computer program for implementing the method described above when executed by a processor.
The working principle of the invention is as follows: in the case of power-off and before receiving a switching command after initial power-up, the optical path is in a K0 hard-pass state in which data can flow into the service-side device 6 when the service-side device 6 is connected to the LAN port. When the WAN port 1 is interrupted, the optical path is immediately switched into a K0 hard straight-through state, so that the interruption of the optical path signal of the system caused by down of the WAN port 1 due to the physical layer is avoided; when the data input of the WAN port 1 is normal and the data output of the WAN port 1 is interrupted, the WAN port 1 is immediately switched to a K0 hard straight-through state, if the WAN port 1 is the reason of the service end equipment 6, the WAN port 1 is switched to a K1 soft straight-through state, and after 5 minutes, the WAN port 1 is still not recovered, the WAN port 1 is switched to the K0 hard straight-through state, so that the interruption of the service end equipment 6 to interrupt the system optical path signal is avoided; in the K2 traffic state, when the WAN port 1 inputs and outputs data normally: if the heartbeat of the client is overtime or the LAN port 5.5 is down, and the client sends a switching instruction through Api, the protection system is switched to a K1 soft straight-through state; if the transmitting end 5.51 of the LAN port 5.5 is normal, the input data of the LAN port 5.5 is not forwarded from the WAN port 1, and the state is switched to a K0 hard straight-through state, so that the interruption of the optical path signal caused by the fault of the convergence and distribution equipment module 5 is avoided; when the data input and output of the WAN port 1 and the LAN port 5.5 are normal, the client sends a switching instruction through the Api, and the protection system is switched to a K2 service state.
The foregoing is only a preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art, who is within the scope of the present invention, should make equivalent substitutions or modifications according to the technical scheme of the present invention and the inventive concept thereof, and should be covered by the scope of the present invention.
Claims (9)
1. The multiple bypass optical port line is characterized by comprising a WAN port, an optical splitter, a first optical switch, a converging and diverging equipment module and a second optical switch; the WAN port comprises a downlink port and an uplink port; the beam splitter comprises a downlink beam splitter and an uplink beam splitter;
the first optical switch is respectively connected with the light splitting branches of the downlink light splitter and the uplink light splitter, the output end of the second optical switch and the converging and diverging equipment module, and the converging and diverging equipment module is used for connecting service end equipment; the input end of the second optical switch is connected with an uplink shunt port of the converging and shunting equipment module;
the first optical switch comprises a first input contact, a second input contact, a first output contact and a second output contact, and is used for switching a passage between the first input contact and the first output contact and a passage between the first output contact and the second output contact, and the second input contact is connected with the second output contact;
the convergence and distribution equipment module comprises a first downlink distribution port, a second downlink distribution port, a first uplink distribution port, a second uplink distribution port and a LAN port for connecting service end equipment, wherein the first downlink distribution port and the second downlink distribution port are both connected with a transmitting end of the LAN port, the first downlink distribution port is also connected with the second uplink distribution port, and the first uplink distribution port is connected with a receiving end of the LAN port;
the second optical switch comprises a third input contact, a fourth input contact and a third output contact, and is used for switching a passage between the third input contact and the third output contact and between the fourth input contact and the third output contact;
the incident end of the downlink optical splitter is connected with a downlink port in the WAN port, and the first input contact of the first optical switch is connected with one optical splitter branch of the downlink optical splitter; the first downstream shunt port is connected with a first output contact through an optical amplifier, the first upstream shunt port is connected with a third input contact through the optical amplifier, the second downstream shunt port is connected with a fourth input contact through the optical amplifier, and the third output contact is connected with a second input contact; the incident end of the uplink beam splitter is connected with the second output end of the first optical switch, and the uplink port in the WAN port is connected with one beam splitter branch of the uplink beam splitter; the second downstream split port is connected with the other split branch of the upstream optical splitter through an optical amplifier.
2. The multiple bypass optical port line of claim 1, wherein: a TAP port is also included that is connected to another optical branch of the downstream optical splitter.
3. The multiple bypass optical port line of claim 1, wherein: the WAN port and the beam splitter are both provided with two, the first optical switch further comprises a fifth input contact, a sixth input contact, a fifth output contact and a sixth output contact, the second optical switch further comprises a seventh input contact, an eighth input contact and a fourth output contact, and downlink data of each WAN port are uplink from another WAN port.
4. A multiple bypass protection system comprising the multiple bypass optical port line of any one of claims 1-3, further comprising:
a node monitoring module; the node monitoring module is used for monitoring the data transmission state of each node and generating node abnormality information when signal abnormality occurs;
the input end of the CPU is connected with the transmitting end of the node monitoring module;
the memory is connected with the CPU and used for storing control instructions;
the receiving end of the optical path switching module is connected with the output end of the CPU, and the optical path switching module executes a control instruction to switch the paths of the first optical switch, the second optical switch and the converging and diverging equipment module.
5. The multiple bypass protection system of claim 4, wherein: the system also comprises a timer which is respectively connected with the node monitoring module and the CPU.
6. The multiple bypass protection system of claim 4, wherein: and the receiving end of the CPU is also in communication connection with the converging and diverging equipment module.
7. A multiple bypass protection method, wherein the method is used for switching multiple bypass optical port lines according to any one of claims 1 to 3, and comprises the following steps:
monitoring the data transmission state of each node, and generating node abnormality information when signal abnormality occurs;
searching a corresponding control instruction according to the node abnormality information;
and switching the paths of the first optical switch, the second optical switch and the converging and diverging equipment module according to the control instruction, keeping the communication of the optical port line uninterrupted, and completing the protection of the optical port line.
8. The method of claim 7, wherein: after the first optical switch, the second optical switch and the converging and diverging equipment module are switched, the method further comprises the following steps:
if the node is not recovered within a certain time after the abnormality occurs, a control instruction is secondarily output;
and further switching the passage according to the control instruction.
9. The multiple bypass protection method of claim 7, further comprising:
and receiving a control instruction, and switching the passage according to the control instruction.
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| CN201114070Y (en) * | 2007-08-17 | 2008-09-10 | 武汉光迅科技股份有限公司 | Optical protection device against single station failure |
| CN109560865A (en) * | 2019-01-29 | 2019-04-02 | 北京瑞源芯科技有限公司 | It is provided simultaneously with the optical fiber link control equipment of light splitting and bypass functionality |
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| US7242860B2 (en) * | 2002-10-18 | 2007-07-10 | Hitachi America, Ltd | Optical protection switching using 2 by 2 switching functions |
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| CN109560865A (en) * | 2019-01-29 | 2019-04-02 | 北京瑞源芯科技有限公司 | It is provided simultaneously with the optical fiber link control equipment of light splitting and bypass functionality |
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