CN105790986A - Method, apparatus and system for managing optical network unit DPU device - Google Patents

Abstract

The invention discloses an optical network unit DPU equipment management method, device and system, wherein, a specific service bearing channel is established between the optical line terminal OLT and the optical network unit DPU; the permanent manager of the OLT receives the NETCONF from the configuration server on behalf of the PMA Configure the message, and send the management message of the management object to the DPU through the specific service bearer channel; through the OLT and the ONU adjacent to the OLT, the specific service bearer channel is terminated, and the OLT and the ONU respectively send the NET - The CONF message is extracted to the device management CPU, and the OLT and the ONU establish a transparent channel for carrying the NET-CONF protocol, which solves the problems of high complexity and poor scalability of the optical network unit DPU device management, and reduces management complexity It improves scalability and reduces maintenance costs.

Description

Optical network unit DPU equipment management method, device and system

technical field

The present invention relates to the field of communications, in particular to a device management method, device and system for an optical network unit (DPU).

Background technique

A distribution processing unit (DistributionPointUnit, DPU for short) device only refers to a device placed on a branch point (DistributionPoint, DP for short) node. The network side is a passive optical network (Passive Optical Network, referred to as xPON)/Ethernet uplink port, and the user side is a VDSL2/G.FAST digital subscriber line (Digital Subscriber Line, referred to as DSL) interface. In related technologies, the current DPU device management model The network configuration NETCONF protocol is adopted, which generally carries the IP protocol. If the uplink device is an optical line terminal (abbreviated as OLT), then the permanent manager agent (Permanent ManagementAgen, referred to as PMA) can be placed on the OLT device, even if the OLT and the Optical Network Unit (referred to as ONU) are adjacent If the equipment still adopts the IP bearer mode, then it is necessary to configure IP addresses on both the OLT and the DPU, which involves issues such as IP address allocation and management, which brings complexity to network management and increases the complexity of the DPU equipment.

The current conventional management method is the management method using IP addresses. FIG. 1 is a schematic diagram of a method in which IP addresses are used to manage DPU devices in related technologies. As shown in FIG. The disadvantage of this method is: each DPU needs to be assigned an IP address, IP address assignment, identification and management are very complicated, and the opening and maintenance workload is huge.

Another way is to use a dedicated optical network unit when using technologies such as GPON (Gigabit-Capable PON)/XG-PON1 (Gigabit Passive Optical Network) between the OLT and the DPU Management and Control Interface (OMCI for short) is a protocol for information exchange between OLT and ONT defined in the GPON standard) channel to carry NETCONF messages. This channel is used for configuration and notification between OLT and ONU, as shown in Fig. 2 is a schematic diagram of the OMCI management channel between the OLT and the ONU in the related art, and FIG. 3 is a schematic diagram of the NETCONFoverOMCI management method in the related art, as shown in FIGS. 2 and 3 . The implementation scheme based on this channel is the NETCONFoverOMCI method. This function adopts the underlying mechanism of PON, and can realize OLT and ONU configuration management and ONU alarm notification without configuring IP addresses. However, in this OMCI channel, the maximum byte of each OMCI message is less than 53 bytes. If OMCI is used to carry NETCONF messages, then NETCONF message fragmentation and reassembly are involved, and the scalability is poor.

In the related art, no effective solution has been proposed for the problems of high complexity of optical network unit DPU equipment management and poor scalability.

Contents of the invention

The present invention provides an optical network unit DPU device management method, device and system to at least solve the above problems.

According to one aspect of the present invention, a device management method for an optical network unit DPU is provided, including: establishing a specific service bearer channel between an optical line terminal OLT and an optical network unit DPU; The NETCONF configuration message of the server sends the management message of the management object to the DPU through the specific service bearer channel, wherein the DPU analyzes the management message of the NETCONF management data, and configures the DPU related parameters; through the OLT and the optical network unit ONU adjacent to the OLT, the specific service bearer channel is terminated, the OLT and the ONU respectively extract the NET-CONF message to the equipment management CPU, and the OLT Establish a transparent channel with the ONU for carrying the NET-CONF protocol.

Further, the specific service bearing channel includes one of the following: the GPON encapsulation mode GEM channel of the gigabit passive optical network GPON, the logical link label LLID channel of the Ethernet passive optical network EPON, and the virtual local area network VLAN of the Ethernet aisle.

Further, when the specific service bearing channel is a GPON encapsulation mode GEM channel of Gigabit Passive Optical Network GPON, the NET-CONF message is carried on a GEM frame, and the length of the GEM frame is greater than the NET-CONF The length of the CONF packet.

Further, when the specific service bearing channel is a virtual local area network VLAN channel of Ethernet, the addressing mode for establishing a specific service bearing channel between the optical line terminal OLT and the optical network unit DPU includes one of the following: between the VLANID and the In the case where the DPUs are one-to-one correspondence, and one VLAN has multiple DPU devices, the MAC addresses of the DPU devices are used to identify and distinguish them; in the case of VLAN bearing, the source MAC address of the message is the MAC address of the device Address, the destination MAC address, if you do not know the MAC address of the peer, use the broadcast address to send, and if you get the MAC address of the peer, fill in the MAC address of the peer.

Further, before the permanent manager agent PMA of the OLT receives the NETCONF configuration message from the configuration server, it includes: through the northbound interface mode, the PMA uses an IP address to connect to the network management configuration server, and the upper layer protocol of the connection Including: Network Configuration Protocol NET-CONF, Simple Network Management Protocol SNMP, Human-Machine Exchange Protocol TL1.

According to another aspect of the present invention, a device management device for an optical network unit DPU is also provided, including: an establishment module for establishing a specific service bearer channel between the optical line terminal OLT and the optical network unit DPU; a configuration module for the The permanent manager agent PMA of the OLT receives the NET-CONF configuration message from the configuration server, and sends the management message of the managed object to the DPU through the specific service bearer channel, wherein the DPU sends the management message to the DPU. The message analyzes the management data of NET-CONF, and configures the relevant parameters of the DPU; the transmission module is used to terminate the specific service bearer channel through the OLT and the OLT adjacent equipment optical network unit ONU, the The OLT and the ONU respectively extract the NET-CONF message to the device management CPU, and the OLT and the ONU establish a transparent channel for carrying the NET-CONF protocol.

Further, the establishment module includes: the first channel unit, the GPON encapsulation mode GEM channel of the gigabit passive optical network GPON; the second channel unit, the logical link label LLID channel of the Ethernet passive optical network EPON; the third channel Unit, Ethernet virtual local area network VLAN channel.

Further, the first channel unit is used for the case where the specific service bearing channel is a GPON encapsulation mode GEM channel of Gigabit Passive Optical Network GPON, the NET-CONF message is carried on the GEM frame, and the The GEM frame length is greater than the NET-CONF packet length.

Further, the third channel unit is used in the case where the specific service bearing channel is an Ethernet virtual local area network VLAN channel, and the addressing mode for establishing a specific service bearing channel between the optical line terminal OLT and the optical network unit DPU includes the following One: when the VLANID and the DPU are in one-to-one correspondence, and there are multiple DPU devices in one VLAN, identify and distinguish them according to the MAC addresses of the DPU devices; in the case of VLAN bearer, The source MAC address of the message is the MAC address of the device, and the destination MAC address. If the MAC address of the peer is not known, the broadcast address is used to send it. When the MAC address of the peer is obtained, the MAC address of the peer is filled.

Further, the device further includes: an interface module, which is used to connect the PMA to the network management configuration server using an IP address through a northbound interface, and the upper layer protocol of the connection includes: the network configuration protocol NET-CONF, simple network management Protocol SNMP, man-machine exchange protocol TL1.

According to still another aspect of the present invention, an optical network unit DPU device management system is also provided, including: the device described in any one item.

Through the present invention, a specific service bearer channel is established between the optical line terminal OLT and the optical network unit DPU; the permanent manager agent PMA of the OLT receives the NETCONF configuration message from the configuration server, and passes the management message of the management object through the specific The service bearer channel is sent to the DPU, wherein the DPU analyzes the management message of the NETCONF management data, and configures the relevant parameters of the DPU; through the OLT and the ONU adjacent to the OLT, the specific service bearer is terminated channel, the OLT and the ONU respectively extract the NET-CONF message to the device management CPU, and the OLT and the ONU establish a transparent channel for carrying the NET-CONF protocol, which solves the high complexity of the optical network unit DPU device management, The problem of poor scalability reduces management complexity, improves scalability, and reduces maintenance costs.

Description of drawings

The accompanying drawings described here are used to provide a further understanding of the present invention and constitute a part of the application. The schematic embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute improper limitations to the present invention. In the attached picture:

FIG. 1 is a schematic diagram of a manner in which an IP address is used to manage a DPU device in the related art;

Fig. 2 is the schematic diagram of the OMCI management channel between OLT and ONU in the related art;

Fig. 3 is the schematic diagram that adopts NETCONFoverOMCI management mode in the relevant technology;

Fig. 4 is a flow chart of a device management method for an optical network unit DPU according to an embodiment of the present invention;

5 is a structural block diagram of an optical network unit DPU device management device according to an embodiment of the present invention;

Fig. 6 is a schematic diagram of a management mode using NETCONFoverGEM/LLID/VLAN according to a preferred embodiment of the present invention.

detailed description

Hereinafter, the present invention will be described in detail with reference to the drawings and examples. It should be noted that, in the case of no conflict, the embodiments in the present application and the features in the embodiments can be combined with each other.

In this embodiment, a method for managing an optical network unit DPU device is provided. FIG. 4 is a flowchart of a method for managing an optical network unit DPU device according to an embodiment of the present invention. As shown in FIG. 4 , the process includes the following steps :

Step S402, establishing a specific service bearer channel between the optical line terminal OLT and the optical network unit DPU;

Step S404, the permanent manager agent PMA of the OLT receives the NETCONF configuration message from the configuration server, and sends the management message of the managed object to the DPU through the specific service bearer channel, wherein the DPU sends the management message to the DPU Analyze the management data of NETCONF and configure the relevant parameters of the DPU;

Step S406, terminate the specific service bearer channel through the OLT and the ONU adjacent to the OLT, the OLT and the ONU respectively extract the NET-CONF message to the equipment management CPU, and the OLT and the ONU establish a transparent Channels are used to carry the NET-CONF protocol.

Through the above steps, a specific channel is created between the OLT and the ONU, the channel is terminated through the OLT and the ONU side, and the protocol packets are respectively extracted to the device management CPU, so that a transparent channel can be established between the OLT and the ONU side for carrying NET-CONF protocol, NET-CONF protocol can not perceive the difference of the underlying channel, thus solving the problem of high management complexity and poor scalability of optical network unit DPU equipment, reducing management complexity, improving scalability, and reducing maintenance cost.

In this embodiment, there may be many specific service bearing channels, wherein the specific service bearing channel may include one of the following: GPON encapsulation GEM channel of Gigabit passive optical network GPON, Ethernet passive optical The logical link of the network EPON marks the LLID channel, and the virtual local area network VLAN channel of the Ethernet.

In this embodiment, when the specific service bearing channel is a GPON encapsulation mode GEM channel of Gigabit Passive Optical Network GPON, the NET-CONF message is carried on a GEM frame, and the length of the GEM frame is greater than that of the NET-CONF The length of the message, so that the length of the GEM frame is enough to support a NET-CONF message, without fragmentation, reassembly, etc., and it is transparent to NET-CONF, and the NET-CONF protocol cannot perceive the difference of the underlying channel.

In this embodiment, when the specific service bearing channel is a virtual local area network VLAN channel of Ethernet, the addressing mode for establishing a specific service bearing channel between the optical line terminal OLT and the optical network unit DPU may include one of the following:

In the case that the VLANID and the DPU are in one-to-one correspondence, and there are multiple DPU devices in one VLAN, identify and distinguish them according to the MAC address of the DPU device;

In the case of VLAN bearer, the source MAC address of the message is the MAC address of the device, and the destination MAC address. If the peer MAC address is unknown, the broadcast address is used to send it. When the peer MAC address is obtained, the peer MAC address is filled. address.

In this embodiment, before the permanent manager agent PMA of the OLT receives the NETCONF configuration message from the configuration server, it includes:

Through the northbound interface, the PMA uses an IP address to connect to the network management configuration server. The upper layer protocols of the connection include: the network configuration protocol NET-CONF, the simple network management protocol SNMP, and the man-machine exchange protocol TL1.

In this embodiment, an optical network unit DPU device management device is also provided, which is used to implement the above embodiments and preferred implementation modes, and those that have already been described will not be repeated. As used below, the term "module" may be a combination of software and/or hardware that realizes a predetermined function. Although the devices described in the following embodiments are preferably implemented in software, implementations in hardware, or a combination of software and hardware are also possible and contemplated.

Fig. 5 is a structural block diagram of an optical network unit DPU device management device according to an embodiment of the present invention. As shown in Fig. 5, the device includes:

The establishment module 52 is used to establish a specific service bearer channel between the optical line terminal OLT and the optical network unit DPU;

The configuration module 54 is used for the permanent manager agent PMA of the OLT to receive the NET-CONF configuration message from the configuration server, and send the management message of the managed object to the DPU through the specific service bearing channel, wherein the DPU Perform NET-CONF management data analysis on the management message, and configure the relevant parameters of the DPU;

The transmission module 56 is used to terminate the specific service bearer channel through the OLT and the ONU adjacent to the ONU, the OLT and the ONU respectively extract the NET-CONF message to the equipment management CPU, and the OLT and the ONU establish A transparent channel is used to carry the NET-CONF protocol.

Through the above device, a specific channel is created between the OLT and the ONU, the channel is terminated through the OLT and the ONU side, and the protocol packets are respectively extracted to the device management CPU, so that a transparent channel can be established between the OLT and the ONU side for carrying NET-CONF protocol, NET-CONF protocol can not perceive the difference of the underlying channel, thus solving the problem of high management complexity and poor scalability of optical network unit DPU equipment, reducing management complexity, improving scalability, and reducing maintenance cost.

In this embodiment, the establishment module 52 includes:

The first channel unit, GPON encapsulation mode GEM channel of Gigabit Passive Optical Network GPON;

The second channel unit, the logical link mark LLID channel of the Ethernet passive optical network EPON;

The third channel unit, the virtual local area network VLAN channel of Ethernet.

The first channel unit is used for when the specific service bearing channel is a GPON encapsulation mode GEM channel of Gigabit Passive Optical Network GPON, the NET-CONF message is carried on a GEM frame, and the GEM frame length is greater than the NET -CONF packet length.

The third channel unit is used in the case where the specific service bearing channel is a virtual local area network VLAN channel of Ethernet, and the addressing mode for establishing a specific service bearing channel between the optical line terminal OLT and the optical network unit DPU includes one of the following: In the case of a one-to-one correspondence between the VLAN ID and the DPU, and there are multiple DPU devices in one VLAN, they are identified and distinguished according to the MAC address of the DPU device; in the case of VLAN bearer, the source MAC address of the message is the MAC address of the device Address, the destination MAC address, if you do not know the MAC address of the peer, use the broadcast address to send, and if you get the MAC address of the peer, fill in the MAC address of the peer.

In this embodiment, the device also includes: an interface module, which is used to connect the PMA to the network management configuration server using an IP address through a northbound interface. The upper layer protocol of the connection includes: the network configuration protocol NET-CONF, simple network management Protocol SNMP, man-machine exchange protocol TL1.

In this embodiment, there is also an optical network unit (DPU) equipment management system, which includes the apparatus in any one of the embodiments, and is used to implement the method in the above embodiments.

The present invention will be described in detail below in combination with preferred embodiments and implementation scenarios.

This preferred embodiment discloses a management method for managing a DPU device through a PMA on an OLT.

a. Set a specific service bearing channel between the OLT and the DPU, such as the GEM channel of GPON, the LLID of EPONE PON (Ethernet Passive Optical Network, Ethernet Passive Optical Network), or a specific Virtual Local Area Network (VirtualLocalAreaNetwork, referred to as VLAN for short) of Ethernet );

b. The PMA of the OLT receives the NETCONF configuration message from the configuration server, and sends it to the DPU through the specific service bearer channel between the OLT and the DPU according to the managed object;

C. The DPU parses the management message sent through the specific service bearer channel between the OLT and the DPU to directly complete the analysis of the management data of NETCONF, and configure the relevant parameters of the DPU;

The channel is terminated through the OLT and the ONU side, and the packets are respectively extracted to the device management CPU; in this way, a transparent channel can be established on the OLT and ONU side to carry the NET-CONF protocol.

In the northbound interface mode, the PMA uses an IP address to connect with the network management configuration server, and the upper layer protocol can be the network configuration NETCONF protocol, or SNMP, man-machine exchange protocol TL1 (TransactionLanguage-1) and other modes.

For the G-PON encapsulation mode GEM (G-PONEncapsulationMode, referred to as GEM) channel of GPON and the logical link identifier (LogicalLinkIdentifier, referred to as LLID) channel of EPON, this channel corresponds to the DPU one-to-one. However, there are two methods for addressing using VLANs:

If there is a one-to-one correspondence between VLANID and DPU, the implementation scheme is similar to GEM/LLID at this time. If there are multiple DPU devices in one VLAN, then it is necessary to identify and distinguish them based on the MAC addresses of the DPU devices.

When using VLAN bearer, the source MAC address of the message is the MAC address of the device, and the destination MAC address. If you do not know the peer MAC address, you can use the broadcast address to send it. When you get the peer MAC address, you can fill in the peer MAC address.

Fig. 6 is the schematic diagram that adopts NETCONFoverGEM/LLID/VLAN management mode according to the preferred embodiment of the present invention;

As shown in Figure 6, this preferred embodiment does not need to assign IP addresses, adopts the GEM channel as a transparent channel between the OLT and the ONU, and directly carries the NETCONF message on the GEM frame. The specific method is as follows:

s1. Set a specific service bearing channel between the OLT and the DPU, such as the GEM channel of GPON, the LLID of EPON, or a specific VLAN of Ethernet;

s2. The PMA of the OLT receives the NETCONF configuration message from the configuration server, and sends it to the DPU through a specific service bearer channel between the OLT and the DPU according to the managed object

s3. The DPU parses the management message sent through the specific service bearer channel between the OLT and the DPU to directly complete the analysis of the NETCONF management data, and configure the relevant parameters of the DPU

In the northbound direction, the PMA uses an IP address for its connection with the NETCONF configuration service;

S4. If the VLAN bearing mode is adopted, and there are multiple DPU devices in the VLAN, the corresponding relationship between the MAC address and the DPU needs to be configured on the OLT to facilitate addressing.

Obviously, those skilled in the art should understand that each module or each step of the above-mentioned present invention can be realized by a general-purpose computing device, and they can be concentrated on a single computing device, or distributed in a network formed by multiple computing devices Alternatively, they may be implemented in program code executable by a computing device so that they may be stored in a storage device to be executed by a computing device, and in some cases in an order different from that shown here The steps shown or described are carried out, or they are separately fabricated into individual integrated circuit modules, or multiple modules or steps among them are fabricated into a single integrated circuit module for implementation. As such, the present invention is not limited to any specific combination of hardware and software.

The above descriptions are only preferred embodiments of the present invention, and are not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and changes. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included within the protection scope of the present invention.

Claims (11)

1. A kind of optical network unit DPU equipment management method, it is characterized in that, comprising: Establish a specific service bearer channel between the optical line terminal OLT and the optical network unit DPU; The permanent manager agent PMA of the OLT receives the NETCONF configuration message from the configuration server, and sends the management message of the managed object to the DPU through the specific service bearer channel, wherein the DPU sends the management message to the DPU. The message analyzes the management data of NETCONF, and configures the relevant parameters of the DPU; Terminate the specific service bearer channel through the OLT and the optical network unit ONU adjacent to the OLT, the OLT and the ONU respectively extract the NET-CONF message to the equipment management CPU, the OLT and the ONU Establish a transparent channel for carrying the NET-CONF protocol. 2. The method according to claim 1, wherein the specific service bearing channel comprises one of the following: Gigabit passive optical network GPON GPON encapsulation mode GEM channel, Ethernet passive optical network EPON logical link mark LLID channel, Ethernet virtual local area network VLAN channel. 3. The method of claim 2, comprising: When the specific service bearing channel is a GPON encapsulation mode GEM channel of Gigabit Passive Optical Network GPON, the NET-CONF message is carried on a GEM frame, and the length of the GEM frame is greater than that of the NET-CONF message length. 4. The method of claim 2, comprising: In the case where the specific service bearing channel is a virtual local area network VLAN channel of Ethernet, the addressing mode for establishing a specific service bearing channel between the optical line terminal OLT and the optical network unit DPU includes one of the following: In the case that the VLANID and the DPU are in one-to-one correspondence, and one VLAN has multiple DPU devices, identify and distinguish them according to the MAC addresses of the DPU devices; In the case of VLAN bearer, the source MAC address of the message is the MAC address of the device, and the destination MAC address. If the peer MAC address is unknown, the broadcast address is used to send it. When the peer MAC address is obtained, the peer MAC address is filled. address. 5. method according to claim 1, is characterized in that, before the permanent manager agent PMA of described OLT receives the NETCONF configuration message from configuration server, comprises: Through the northbound interface, the PMA uses an IP address to connect to the network management configuration server. The upper layer protocols of the connection include: the network configuration protocol NET-CONF, the simple network management protocol SNMP, and the man-machine exchange protocol TL1. 6. An optical network unit DPU device management device, characterized in that, comprising: The establishment module is used to establish a specific service bearer channel between the optical line terminal OLT and the optical network unit DPU; The configuration module is used for the permanent manager agent PMA of the OLT to receive the NET-CONF configuration message from the configuration server, and send the management message of the managed object to the DPU through the specific service bearer channel, wherein, The DPU analyzes the management message of the management data of NET-CONF, and configures the relevant parameters of the DPU; A transmission module, configured to terminate the specific service bearer channel through the OLT and the optical network unit (ONU) adjacent to the OLT, the OLT and the ONU respectively extract the NET-CONF message to the equipment management CPU, the The OLT and the ONU establish a transparent channel for carrying the NET-CONF protocol. 7. The device according to claim 6, wherein the establishment module comprises: The first channel unit, GPON encapsulation mode GEM channel of Gigabit Passive Optical Network GPON; The second channel unit, the logical link mark LLID channel of the Ethernet passive optical network EPON; The third channel unit, the virtual local area network VLAN channel of Ethernet. 8. The device of claim 7, comprising: The first channel unit is used for when the specific service bearing channel is a GPON encapsulation mode GEM channel of Gigabit Passive Optical Network GPON, the NET-CONF message is carried on a GEM frame, and the GEM frame The length is greater than the length of the NET-CONF packet. 9. The device of claim 7, comprising: The third channel unit is used for the case where the specific service bearing channel is a virtual local area network VLAN channel of Ethernet, and the addressing mode for establishing a specific service bearing channel between the optical line terminal OLT and the optical network unit DPU includes one of the following: In the case where the VLANID and the DPU are in one-to-one correspondence, and one VLAN has multiple DPU devices, identify and distinguish them according to the MAC addresses of the DPU devices; In the case of VLAN bearer, the source MAC address of the message is the MAC address of the device, and the destination MAC address. If the peer MAC address is unknown, the broadcast address is used to send it. When the peer MAC address is obtained, the peer MAC address is filled. address. 10. The device according to claim 6, further comprising: The interface module is used to connect the PMA to the network management configuration server by using an IP address through the northbound interface. The upper layer protocols of the connection include: the network configuration protocol NET-CONF, the simple network management protocol SNMP, and the man-machine exchange protocol TL1. 11. A kind of optical network unit DPU equipment management system, it is characterized in that, comprising: A device as claimed in any one of claims 6 to 10.