WO2021147357A1 - 路由信息的发布方法、装置及系统 - Google Patents

路由信息的发布方法、装置及系统 Download PDF

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Publication number
WO2021147357A1
WO2021147357A1 PCT/CN2020/116606 CN2020116606W WO2021147357A1 WO 2021147357 A1 WO2021147357 A1 WO 2021147357A1 CN 2020116606 W CN2020116606 W CN 2020116606W WO 2021147357 A1 WO2021147357 A1 WO 2021147357A1
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Prior art keywords
border
routing information
network
boundary
transmission
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PCT/CN2020/116606
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English (en)
French (fr)
Inventor
罗贤龙
郑瑜
陈巍
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华为技术有限公司
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Priority to EP20915444.2A priority Critical patent/EP4080902A4/en
Publication of WO2021147357A1 publication Critical patent/WO2021147357A1/zh
Priority to US17/870,678 priority patent/US20220360526A1/en

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L61/00—Network arrangements, protocols or services for addressing or naming
    • H04L61/58—Caching of addresses or names
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q11/00—Selecting arrangements for multiplex systems
    • H04Q11/0001—Selecting arrangements for multiplex systems using optical switching
    • H04Q11/0005—Switch and router aspects
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L45/00—Routing or path finding of packets in data switching networks
    • H04L45/02—Topology update or discovery
    • H04L45/04—Interdomain routing, e.g. hierarchical routing
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L45/00—Routing or path finding of packets in data switching networks
    • H04L45/14—Routing performance; Theoretical aspects
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L45/00—Routing or path finding of packets in data switching networks
    • H04L45/54—Organization of routing tables
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L45/00—Routing or path finding of packets in data switching networks
    • H04L45/645—Splitting route computation layer and forwarding layer, e.g. routing according to path computational element [PCE] or based on OpenFlow functionality
    • H04L45/655—Interaction between route computation entities and forwarding entities, e.g. for route determination or for flow table update
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L61/00—Network arrangements, protocols or services for addressing or naming
    • H04L61/09—Mapping addresses
    • H04L61/10—Mapping addresses of different types
    • H04L61/103—Mapping addresses of different types across network layers, e.g. resolution of network layer into physical layer addresses or address resolution protocol [ARP]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q11/00—Selecting arrangements for multiplex systems
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W40/00—Communication routing or communication path finding
    • H04W40/02—Communication route or path selection, e.g. power-based or shortest path routing
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L2101/00—Indexing scheme associated with group H04L61/00
    • H04L2101/60—Types of network addresses
    • H04L2101/618—Details of network addresses
    • H04L2101/622—Layer-2 addresses, e.g. medium access control [MAC] addresses
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L45/00—Routing or path finding of packets in data switching networks
    • H04L45/02—Topology update or discovery
    • H04L45/036—Updating the topology between route computation elements, e.g. between OpenFlow controllers
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L45/00—Routing or path finding of packets in data switching networks
    • H04L45/74—Address processing for routing
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q11/00—Selecting arrangements for multiplex systems
    • H04Q11/0001—Selecting arrangements for multiplex systems using optical switching
    • H04Q11/0005—Switch and router aspects
    • H04Q2011/0037—Operation
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q2213/00—Indexing scheme relating to selecting arrangements in general and for multiplex systems
    • H04Q2213/13141—Hunting for free outlet, circuit or channel

Definitions

  • This application relates to the field of communication technology, and in particular to a method, device and system for publishing routing information.
  • OTN optical transport network
  • OTN includes multiple OTN pipes (for example, OTN pipe 1, OTN pipe 2, OTN pipe 3 and OTN pipe 4).
  • OTN pipe 1, OTN pipe 2, OTN pipe 3 and OTN pipe 4 One end of each OTN pipe is connected to OTN equipment, and the other end is the core.
  • OTN equipment, optical cable terminal (optical line terminal, OLT) and router establish connection through OTN pipeline.
  • the optical network terminal (ONT) can include the destination address in the service data and send it to the OLT.
  • the destination address is used to identify the application server.
  • the OLT determines the next hop from the pre-configured routing table according to the destination address of the service data.
  • the IP address of the router, and the MAC address of the next-hop router is determined according to the pre-configured address resolution protocol (ARP) table, and the business data is sent to the next-hop router through the OTN pipe according to the MAC address, and the next hop
  • ARP address resolution protocol
  • the router forwards the service data to the corresponding application server according to the destination address of the service data, and the application server processes the service data.
  • the process for the application server to send service data to the ONT is similar to the foregoing process, and will not be repeated.
  • each OLT performs route flooding learning to obtain the routing table and ARP table.
  • the OLT can flood the interior gateway protocol (IGP) message to obtain the routing table through the OTN pipe connected to it.
  • IGP interior gateway protocol
  • each router can also use the route flooding learning method to obtain the routing table and the ARP table.
  • the number of OLTs is huge. If the static configuration method is applied, the routing configuration work in the entire communication system will be complicated, heavy, and time-consuming. If the routing flooding learning method is applied, the number of OLTs in the network is huge, and the number of pre-configured OTN pipes is large.
  • the central processing unit (CPU) of each OLT and each router in the communication system The pressure on hardware resources such as memory, memory, etc. is very high, and the OLT is generally a small device, it is difficult to support this method, and in the data transmission process, when a certain OTN pipeline is not used, because the OTN pipeline has been configured, It will still occupy network resources and cause a waste of network resources.
  • This application provides a method, device and system for publishing routing information to solve the problem of high complexity and workload of routing configuration when configuring routing tables and ARP in existing communication systems using OTN.
  • Large and time-consuming, the application of routing flooding learning method will lead to a large number of pre-established OTN pipes, resulting in a waste of network resources and a technical problem that puts heavy pressure on the hardware resources of each device in the network.
  • a method for publishing routing information is provided.
  • the method is applied to a boundary transmission device located in a transmission network.
  • the transmission network is centrally controlled by a controller.
  • the transmission network is used to connect a first network domain and a second network domain.
  • a network domain includes a first boundary device, and the second network domain includes a second boundary device.
  • the boundary transmission device is connected to the first boundary device.
  • the method includes: the boundary transmission device receives a control plane protocol message from the controller including the second boundary device.
  • the first routing information of the device s address and the destination address of the second network domain, and send the first routing information to the first border device; the first routing information is used to generate the first border device’s information for indicating the first network domain
  • the forwarding table of the forwarding relationship with the second network domain is provided.
  • the border transfer device receives routing information sent by the controller based on the control plane protocol, and sends the received routing information to the border device, and the border device automatically generates a forwarding table according to the received routing information.
  • routing information can be sent within the transport network through the existing control plane protocol, so that the control plane within the transport network is reachable, without occupying a large amount of data bandwidth resources of the transport network to send routing information, and saving the network resources of the data plane of the transport network; and It is not necessary to pre-establish massive transmission pipelines for routing flooding, and there is no need for border devices and border transmission devices to apply routing flooding learning methods to generate forwarding tables through transmission pipelines, reducing the hardware of border devices and border transmission devices that use routing flooding methods to generate forwarding tables Resources handle pressure.
  • the border device can automatically generate a forwarding table based on the routing information sent by the border transmission device, and there is no need to configure the forwarding table to the border device through a static configuration method, which reduces the complexity and workload of routing configuration and shortens the configuration time.
  • the border transfer device receives second routing information from the first border device that includes the address of the first border device and the destination address of the first network domain; and combines the second routing information Send to the controller.
  • the border transfer device sends the second routing information of the first border device to the controller, so that the controller can pass the second routing information of the first border device through other border transfer devices connected to the second border device. Sent to the second border device, so that the second border device automatically generates the forwarding table of the second border device according to the received second routing information, and realizes the forwarding of service data in the first network domain and the second network domain according to the forwarding table, There is no need to configure the forwarding table to the border device through a static configuration method, which reduces the complexity and workload of routing configuration and shortens the configuration time.
  • the address of the second boundary device includes an IP address and/or a MAC address.
  • the address of the second boundary device includes the IP address and the MAC address of the second boundary device
  • the destination address of the second network domain includes the IP address of the second network domain.
  • the forwarding table includes a routing table and an ARP table.
  • the first border device establishes a routing table and an ARP table according to the first routing information, so that in the process of service data transmission, the IP address of the next hop can be determined according to the routing table, and the next hop can be determined according to the ARP table.
  • the MAC address corresponding to the IP address sends the business data to the next hop according to the MAC address to realize Layer 3 routing and forwarding and Layer 2 routing and forwarding.
  • the first boundary device is a user-side network device, and the second boundary device is a server-side network device; or the first boundary device is a server-side network Device, the second boundary device is a user-side network device.
  • the first boundary device may be a user-side network device, and the second boundary device may be a server-side network device; or the first boundary device may be a server-side network device, and the second boundary device may be a user-side network device ,
  • the method described in this embodiment can be implemented by the user-side device or the method described in this embodiment can be implemented by the server-side device, which improves the flexibility of method implementation.
  • the border transmission device sends the first routing information to the first border device based on the control protocol of the network layer or the data link layer.
  • the border transmission device can send routing information to the border device based on the control protocol of the network layer or the data link layer, so that the control plane is reachable, without occupying a large amount of data bandwidth resources, and saving network resources of the data plane.
  • a communication device in a second aspect, can implement the functions performed by the boundary transfer device in the first aspect or the possible design of the first aspect, and the functions can be implemented by hardware executing corresponding software.
  • the hardware or software includes one or more modules corresponding to the above-mentioned functions.
  • the communication device includes: a receiving module and a sending module.
  • the receiving module is configured to receive the first routing information including the address of the second border device and the destination address of the second network domain from the controller based on the control plane protocol message.
  • the sending module is configured to send the first routing information to the first border device; the first routing information is used to generate a forwarding table of the first border device for indicating the forwarding relationship between the first network domain and the second network domain .
  • the specific implementation of the communication device may refer to the behavior function of the boundary transmission device in the routing information publishing method provided by the first aspect or any one of the possible designs of the first aspect, based on the communication device described in the second aspect,
  • the border transfer device receives the routing information sent by the controller based on the control plane protocol, and sends the received routing information to the border device, and the border device automatically generates a forwarding table according to the received routing information.
  • routing information can be sent within the transport network through the existing control plane protocol, so that the control plane within the transport network is reachable, without occupying a large amount of data bandwidth resources of the transport network to send routing information, and saving the network resources of the data plane of the transport network; and It is not necessary to pre-establish massive transmission pipelines for routing flooding, and there is no need for border devices and border transmission devices to apply routing flooding learning methods to generate forwarding tables through transmission pipelines, reducing the hardware of border devices and border transmission devices that use routing flooding methods to generate forwarding tables Resources handle pressure.
  • the border device can automatically generate a forwarding table based on the routing information sent by the border transmission device, and there is no need to configure the forwarding table to the border device through a static configuration method, which reduces the complexity and workload of routing configuration and shortens the configuration time.
  • the receiving module is further configured to receive second routing information from the first border device that includes the address of the first border device and the destination address of the first network domain; the sending module, It is also used to send the second routing information to the controller.
  • the border transfer device sends the second routing information of the first border device to the controller, so that the controller can pass the second routing information of the first border device through other border transfer devices connected to the second border device. Sent to the second border device, so that the second border device automatically generates the forwarding table of the second border device according to the received second routing information, and realizes the forwarding of service data in the first network domain and the second network domain according to the forwarding table, There is no need to configure the forwarding table to the border device through a static configuration method, which reduces the complexity and workload of routing configuration and shortens the configuration time.
  • the address of the second boundary device includes an IP address and/or a MAC address.
  • the address of the second boundary device includes the IP address and the MAC address of the second boundary device
  • the destination address of the second network domain includes the IP address of the second network domain.
  • the forwarding table includes a routing table and an ARP table.
  • the first border device establishes a routing table and an ARP table according to the first routing information, so that in the process of service data transmission, the IP address of the next hop can be determined according to the routing table, and the next hop can be determined according to the ARP table.
  • the MAC address corresponding to the IP address sends the business data to the next hop according to the MAC address to realize Layer 3 routing and forwarding and Layer 2 routing and forwarding.
  • the first boundary device is a user-side network device, and the second boundary device is a server-side network device; or the first boundary device is a server-side network Device, the second boundary device is a user-side network device.
  • the first boundary device may be a user-side network device, and the second boundary device may be a server-side network device; or the first boundary device may be a server-side network device, and the second boundary device may be a user-side network device ,
  • the method described in this embodiment can be implemented by the user-side device or the method described in this embodiment can be implemented by the server-side device, which improves the flexibility of method implementation.
  • the sending module is further configured to send the first routing information to the first border device based on the control protocol of the network layer or the data link layer.
  • the border transmission device can send routing information to the border device based on the control protocol of the network layer or the data link layer, so that the control plane is reachable, without occupying a large amount of data bandwidth resources, and saving network resources of the data plane.
  • a communication device may be a boundary transfer device or a chip or a system on a chip in the boundary transfer device.
  • the communication device can realize the functions performed by the boundary transfer device in the above-mentioned aspects or various possible designs, and the functions can be realized by hardware.
  • the communication device may include a transceiver.
  • the transceiver may be used to support the communication device to implement the aforementioned first aspect or the functions involved in any possible design of the first aspect.
  • the transceiver can be used to receive the first routing information including the address of the second border device and the destination address of the second network domain from the controller based on the control plane protocol message, and the transceiver can also be used to send the first routing information.
  • the first routing information is used to generate a forwarding table of the first border device that is used to indicate the forwarding relationship between the first network domain and the second network domain.
  • the communication device may further include a memory, and the memory is used to store necessary computer-executable instructions and data of the communication device.
  • the transceiver executes the computer-executable instructions stored in the memory, so that the communication device executes the routing information publishing method as described in the first aspect or any one of the possible designs of the first aspect .
  • the specific implementation of the communication device may refer to the behavior function of the boundary transmission device in the routing information publishing method provided in the first aspect or any one of the possible designs of the first aspect.
  • a communication device in a fourth aspect, includes one or more processors and one or more memories; the one or more memories are coupled with the one or more processors, and the one or more memories are used for storing Computer program code or computer instructions; when one or more processors execute the computer instructions, the communication device executes the routing information publishing method as described in the first aspect or any possible design of the first aspect.
  • a computer-readable storage medium stores computer instructions or programs. When the computer instructions or programs are run on a computer, the computer executes the steps described in the first aspect or the first aspect. Any possible design of the routing information publishing method.
  • a computer program product containing instructions which when running on a computer, causes the computer to execute the routing information publishing method as described in the first aspect or any possible design of the first aspect.
  • a method for publishing routing information is provided.
  • the method is applied to a controller.
  • the controller centrally controls a transmission network including a first boundary transmission device and a second boundary transmission device, and the transmission network is used to connect to the first network.
  • Domain and a second network domain the first network domain includes the first border device, the second network domain includes the second border device, the first border transfer device is connected to the first border device, and the second border transfer device is connected to the second border device
  • the method includes: the controller receives the first routing information including the address of the second border device and the destination address of the second network domain from the second border transfer device based on the control plane protocol message; and sending the first routing information to the second border transfer device A border transmission device; the first routing information is used to generate a forwarding table of the first border device for indicating the forwarding relationship between the first network domain and the second network domain.
  • the controller receives routing information based on the control plane protocol message, and sends the received routing information to the border device, and the border device automatically generates a forwarding table according to the received routing information.
  • the existing control plane protocol sends routing information in the transmission network to achieve the reachability of the internal control plane of the transmission network without occupying a large amount of data bandwidth resources of the transmission network to send routing information, saving the network resources of the data plane of the transmission network; and it does not need to be established in advance.
  • Mass transmission pipelines carry out routing flooding, without the need for border devices and border transmission devices to apply routing flooding learning methods to generate forwarding tables through transmission pipelines, reducing the processing pressure of hardware resources for border devices and border transmission devices to generate forwarding tables by routing flooding methods.
  • the border device can automatically generate a forwarding table based on the routing information sent by the border transmission device, and there is no need to configure the forwarding table to the border device through a static configuration method, which reduces the complexity and workload of routing configuration and shortens the configuration time.
  • the controller receives the second routing information from the first border transfer device that includes the address of the first border device and the destination address of the first network domain based on the control plane protocol message; and The second routing information is sent to the second border transfer device; where the second routing information is used to generate a forwarding table of the second border device for indicating the forwarding relationship between the first network domain and the second network domain.
  • the controller receives routing information based on the control plane protocol message, and sends the received routing information to the border device.
  • the border device automatically generates a forwarding table based on the received routing information.
  • the existing control The plane protocol sends routing information in the transmission network to achieve the reachability of the internal control plane of the transmission network.
  • the pipeline performs routing flooding without the need for border devices and border transmission devices to apply routing flooding learning methods to generate forwarding tables through the transmission pipeline, reducing the processing pressure of hardware resources for border devices and border transmission devices to generate forwarding tables by routing flooding methods.
  • the border device can automatically generate a forwarding table based on the routing information sent by the border transmission device, and there is no need to configure the forwarding table to the border device through a static configuration method, which reduces the complexity and workload of routing configuration and shortens the configuration time.
  • the controller receives the first routing information from multiple second border transmission devices in the transmission network;
  • the first routing information of the border transfer device is sent to the first border transfer device based on the same control plane protocol message.
  • the controller can send the first routing information of multiple second border transmission devices to the first border transmission device based on the same control plane protocol message, so as to reduce signaling interaction.
  • the controller receives second routing information from a plurality of first border transmission devices in the transmission network;
  • the second routing information of the border transfer device is sent to the second border transfer device based on the same control plane protocol message.
  • the controller can send the second routing information of multiple first border transmission devices to the first border transmission device based on the same control plane protocol message, so as to reduce signaling interaction.
  • the first boundary transmission device is a user-side boundary transmission device
  • the second boundary transmission device is a server-side boundary transmission device
  • the first boundary The transmission device is a server-side boundary transmission device
  • the second boundary transmission device is a user-side boundary transmission device.
  • the first boundary transmission device may be a user-side boundary transmission device, and the second boundary transmission device may be a server-side boundary transmission device; or, the first boundary transmission device may be a server-side boundary transmission device, and the second boundary transmission device may be a server-side boundary transmission device.
  • the transmission device may be a user-side boundary transmission device without limitation, that is, the method described in this embodiment can be implemented by the user-side device or the method described in this embodiment can be implemented by the server-side device, which improves the flexibility of method implementation.
  • the controller sends the first routing information to the first boundary transmission device based on the control plane protocol message; the controller sends the first routing information to the second boundary transmission device based on the control plane protocol message.
  • the border transfer device sends the second routing information.
  • the controller can send routing information to the border transmission device based on the control plane protocol message, so that the control plane is reachable, without occupying a large amount of data bandwidth resources, and saving data plane network resources.
  • a communication device can implement the functions performed by the controller in the seventh aspect or the possible design of the seventh aspect, and the functions can be implemented by hardware executing corresponding software.
  • the hardware or software includes one or more modules corresponding to the above-mentioned functions.
  • the communication device includes: a receiving module and a sending module.
  • the receiving module is configured to receive the first routing information including the address of the second border device and the destination address of the second network domain from the second border transfer device based on the control plane protocol message.
  • the sending module is used to send the first routing information to the first border transmission device; the first routing information is used to generate the transfer of the first border device for indicating the forwarding relationship between the first network domain and the second network domain Published.
  • control The router receives routing information based on the control plane protocol message, and sends the received routing information to the border device.
  • the border device automatically generates a forwarding table based on the received routing information. In this way, it can be sent in the transport network through the existing control plane protocol. Routing information to achieve the reachability of the internal control plane of the transmission network, without occupying a large amount of data bandwidth resources of the transmission network to send routing information, saving the network resources of the data plane of the transmission network; and it is not necessary to pre-establish massive transmission pipelines for routing flooding.
  • Border devices and border transmission devices use routing flooding learning methods to generate forwarding tables through transmission pipelines, reducing the processing pressure of hardware resources on border devices and border transmission devices that use routing flooding methods to generate forwarding tables.
  • the border device can automatically generate a forwarding table based on the routing information sent by the border transmission device, and there is no need to configure the forwarding table to the border device through a static configuration method, which reduces the complexity and workload of routing configuration and shortens the configuration time.
  • the receiving module is further configured to receive a second boundary transfer device including the address of the first boundary device and the destination address of the first network domain from the first boundary transfer device based on the control plane protocol message. Routing information; the sending module is also used to send the second routing information to the second border transmission device; the second routing information is used to generate the second border device for indicating the connection between the first network domain and the second network domain Forwarding table of forwarding relationship.
  • the controller receives routing information based on the control plane protocol message, and sends the received routing information to the border device.
  • the border device automatically generates a forwarding table based on the received routing information.
  • the existing control The plane protocol sends routing information in the transmission network to achieve the reachability of the internal control plane of the transmission network.
  • the pipeline performs routing flooding without the need for border devices and border transmission devices to apply routing flooding learning methods to generate forwarding tables through the transmission pipeline, reducing the processing pressure of hardware resources for border devices and border transmission devices to generate forwarding tables by routing flooding methods.
  • the border device can automatically generate a forwarding table based on the routing information sent by the border transmission device, and there is no need to configure the forwarding table to the border device through a static configuration method, which reduces the complexity and workload of routing configuration and shortens the configuration time.
  • the receiving module is also used to receive first routing information from multiple second border transmission devices in the transmission network; the sending module is also used For sending the received first routing information of the plurality of second border transfer devices to the first border transfer device based on the same control plane protocol message.
  • the controller can send the first routing information of multiple second border transmission devices to the first border transmission device based on the same control plane protocol message, so as to reduce signaling interaction.
  • the receiving module is also used to receive second routing information from multiple first border transmission devices in the transmission network; the sending module is also used For sending the received second routing information of the plurality of first border transfer devices to the second border transfer device based on the same control plane protocol message.
  • the controller can send the second routing information of multiple first border transmission devices to the first border transmission device based on the same control plane protocol message, so as to reduce signaling interaction.
  • the first boundary transmission device is a user-side boundary transmission device
  • the second boundary transmission device is a server-side boundary transmission device
  • the first boundary The transmission device is a server-side boundary transmission device
  • the second boundary transmission device is a user-side boundary transmission device.
  • the first boundary transmission device may be a user-side boundary transmission device, and the second boundary transmission device may be a server-side boundary transmission device; or, the first boundary transmission device may be a server-side boundary transmission device, and the second boundary transmission device may be a server-side boundary transmission device.
  • the transmission device may be a user-side boundary transmission device without limitation, that is, the method described in this embodiment can be implemented by the user-side device or the method described in this embodiment can be implemented by the server-side device, which improves the flexibility of method implementation.
  • the sending module is also used to send the first routing information to the first border transfer device based on the control plane protocol message; the sending module is also used to The second routing information is sent to the second border transfer device based on the control plane protocol message.
  • the controller can send routing information to the border transmission device based on the control plane protocol, so that the control plane is reachable, without occupying a large amount of data bandwidth resources, and saving data plane network resources.
  • a communication device may be a controller or a chip or a system on a chip in the controller.
  • the communication device can realize the functions performed by the controller in the above-mentioned aspects or various possible designs, and the functions can be realized by hardware.
  • the communication device may include a transceiver.
  • the transceiver may be used to support the communication device to implement the functions involved in the seventh aspect or any one of the possible designs of the seventh aspect.
  • the transceiver can be used to receive the first routing information from the second border transfer device including the address of the second border device and the destination address of the second network domain based on the control plane protocol message; the transceiver can also be used to transfer the first The routing information is sent to the first border transmission device; the first routing information is used to generate a forwarding table of the first border device for indicating the forwarding relationship between the first network domain and the second network domain.
  • the communication device may further include a memory, and the memory is used to store necessary computer-executable instructions and data of the communication device. When the communication device is running, the transceiver executes the computer-executable instructions stored in the memory, so that the communication device executes the routing information publishing method as described in the seventh aspect or any one of the possible designs of the seventh aspect. .
  • the specific implementation of the communication device may refer to the behavior and function of the boundary transmission device in the routing information release method provided by the seventh aspect or any one of the possible designs of the seventh aspect.
  • a communication device in a tenth aspect, includes one or more processors and one or more memories; the one or more memories are coupled with the one or more processors, and the one or more memories are used for storing Computer program code or computer instructions; when one or more processors execute the computer instructions, the communication device executes the routing information publishing method as described in the seventh aspect or any possible design of the seventh aspect.
  • a computer-readable storage medium stores computer instructions or programs.
  • the computer instructions or programs When the computer instructions or programs are run on a computer, the computer can execute the seventh aspect or the seventh aspect. Any possible design of the routing information publishing method.
  • a computer program product containing instructions which when running on a computer, causes the computer to execute the routing information publishing method as described in the seventh aspect or any possible design of the seventh aspect.
  • a communication system in a thirteenth aspect, includes the communication device according to the second aspect or any possible design of the second aspect and any possible design according to the eighth aspect or the eighth aspect The communication device.
  • FIG. 1a is a simplified schematic diagram of a communication system provided by an embodiment of this application.
  • FIG. 1b is a simplified schematic diagram of a communication system provided by an embodiment of this application.
  • FIG. 2 is a schematic diagram of the composition of a communication device provided by an embodiment of the application.
  • FIG. 3 is a schematic diagram of a method for publishing routing information according to an embodiment of the application
  • FIG. 4a is a schematic diagram of a frame structure of routing information provided by an embodiment of this application.
  • 4b is a schematic diagram of a frame structure of a destination address provided by an embodiment of the application.
  • 4c is a schematic diagram of a frame structure of routing information provided by an embodiment of the application.
  • FIG. 5 is a schematic diagram of a method for publishing routing information according to an embodiment of the application
  • FIG. 6 is a schematic diagram of a method for publishing routing information according to an embodiment of the application.
  • FIG. 7 is a schematic diagram of a frame structure of second routing information provided by an embodiment of this application.
  • FIG. 8 is a schematic diagram of a forwarding table provided by an embodiment of the application.
  • FIG. 9 is a schematic diagram of the composition of a communication device provided by an embodiment of the application.
  • FIG. 10 is a schematic diagram of the composition of a communication device provided by an embodiment of the application.
  • the method for publishing routing information can be used in a communication system as shown in FIG. 1a, and the communication system includes a first network domain, a transmission network, and a second network domain.
  • the transmission network is used to connect the first network domain and the second network domain to realize the transmission of service data between the first network domain and the second network domain.
  • the transmission network may be a network used to transmit service data, for example, it may be an optical transport network (optical transport network, OTN), a synchronous digital hierarchy (synchronous digital hierarchy, SDH) network, etc., without limitation.
  • the first network domain and the second network domain may be Internet Protocol (IP) networks.
  • IP Internet Protocol
  • FIG. 1a and FIG. 1b as examples, the method for publishing routing information provided by the embodiment of the present application will be described.
  • the transmission network may include multiple transmission pipelines, a first boundary transmission device, and a second boundary transmission device.
  • the transmission network may include a transmission pipe 1, a transmission pipe 2, a transmission pipe 3, and a transmission pipe 4.
  • One end of each conveying pipeline is a first boundary conveying device, and the other end is a second boundary conveying device.
  • the first boundary conveying device may be connected to at least one first boundary device, and the second boundary conveying device may be connected to at least one second boundary device. Connected, that is, a connection is established between the first boundary device and the second boundary device through a transmission pipeline.
  • Different transmission pipelines correspond to different bandwidths and delays. By using different transmission pipelines to transmit different service data, bandwidth isolation and stable delay can be achieved to meet user needs.
  • the transmission network may also include a controller, through which the transmission network is centrally controlled.
  • the controller may be a software defined network (SDN) independently deployed outside the transmission network.
  • SDN software defined network
  • the controller may not be limited to being centrally deployed in the transmission network as shown in FIG. 1a, but may also be deployed independently of the transmission network.
  • the naming of the transmission pipe is not limited in the embodiment of the present application. Exemplarily, when the transmission network is OTN, the transmission pipe may be named OTN pipe.
  • the first network domain may include at least one first boundary device and at least one first device connected to the first boundary device.
  • the first boundary device may be a device that sends/receives service data including a destination address.
  • the device may be a device for transmitting service data between the first device and the transmission network.
  • the second network domain may include at least one second boundary device and at least one second device connected to the second boundary device.
  • the second boundary device may be a device that sends/receives service data including a destination address.
  • the border device may be a device used to transmit service data between the second device and the transmission network.
  • the first network domain and the second network domain are two network domains that mutually transmit service data through a transmission network.
  • the first device sends service data including a destination address to the first border device, and the destination address is used to identify the second Device;
  • the first boundary device determines the IP address of the second boundary device next hop of the first boundary device from the pre-configured routing table according to the destination address of the received service data, and determines the first boundary according to the pre-configured ARP table
  • the service data is sent through the OTN pipe to the second border device of the first border device according to the MAC address; the second border device of the next hop is based on the received service
  • the destination address of the data is forwarded to the corresponding second device.
  • the first network domain may be a user-side network domain, and the second network domain may be a server-side network domain; or, the first network domain may be a server-side network domain, and the second network domain may be a user-side network domain.
  • the first device may be a user-side network device
  • the first boundary device may be a user-side boundary device
  • the second A boundary transfer device may be a user-side boundary OTN device
  • the second boundary transfer device may be a server-side boundary OTN device
  • the second boundary device may be a server-side boundary device
  • the second device may be a server-side network device.
  • the user-side boundary device can establish a connection with the server-side boundary device through an OTN pipeline.
  • One end of the OTN pipeline is the user-side boundary OTN device, and the other end is the server-side boundary OTN device.
  • the user-side network device may be the ONT shown in FIG. 1b; the user-side boundary device may be the OLT shown in FIG. 1b; the user-side boundary transmission device may be the access OTN device shown in FIG. 1b; the server-side boundary The transmission device may be the core OTN device shown in FIG. 1b; the server-side boundary device may be a routing switching device such as a gateway or a router shown in FIG. 1b; the server-side network device may be the application server shown in FIG. 1b.
  • the ONT shown in FIG. 1b may also be connected to at least one user equipment.
  • the user equipment may be called a terminal (terminal) or a mobile station (MS) or a mobile terminal (MT). )Wait.
  • the user equipment may be a mobile phone, a tablet computer, or a computer with a wireless transceiver function.
  • User equipment can also be virtual reality (VR) terminals, augmented reality (AR) terminals, wireless terminals in industrial control, wireless terminals in unmanned driving, wireless terminals in telemedicine, and smart grids. There are no restrictions on wireless terminals, wireless terminals in smart cities, wireless terminals in smart homes, and in-vehicle terminals.
  • At least one first device, at least one first boundary device, at least one first boundary transfer device, at least one second boundary transfer device, at least one second boundary device, and at least one first boundary device in the embodiments of the present application
  • Both devices can be one or more chips, or system on chip (system on chip, SOC), etc.
  • Fig. 1a is only an exemplary drawing, and the number of devices included therein is not limited.
  • the communication system may also include other devices.
  • the name of each device and the naming of each transmission pipe in Figure 1a are not limited.
  • each device and each transmission pipe can also be named other names, such as: the first network domain and the second network domain When communicating through OTN, the transmission pipe can also be named OTN pipe, etc., without limitation.
  • an embodiment of the present application provides a method for publishing routing information.
  • the method is applied to a boundary transmission device located in a transmission network.
  • the boundary transmission device may be a first boundary transmission device or a second boundary transmission device.
  • Device, taking the boundary transmission device as the first boundary transmission device as an example, the method includes: the first boundary transmission device receives first routing information from the controller based on a control plane protocol message; the first routing information includes the second boundary device Address and the destination address of the second network domain; the first border transfer device sends the first routing information to the first border device; so that the first border device generates instructions for the first network domain and the second network according to the first routing information The forwarding table of the forwarding relationship between domains.
  • an embodiment of the present application provides a method for publishing routing information, which is described in the following embodiments corresponding to FIG. 3, FIG. 5, and FIG. 6.
  • the border transmission device can receive the routing information sent by the controller based on the control plane protocol, and send the received routing information to the border device, and the border device automatically generates a forwarding table according to the received routing information.
  • routing information can be sent within the transport network through the existing control plane protocol, so that the control plane within the transport network is reachable, without occupying a large amount of data bandwidth resources of the transport network to send routing information, and saving the network resources of the data plane of the transport network; and It is not necessary to pre-establish massive transmission pipelines for routing flooding, and there is no need for border devices and border transmission devices to apply routing flooding learning methods to generate forwarding tables through transmission pipelines, reducing the hardware of border devices and border transmission devices that use routing flooding methods to generate forwarding tables Resources handle pressure.
  • the border device can automatically generate a forwarding table based on the routing information sent by the border transmission device, and there is no need to configure the forwarding table to the border device through a static configuration method, which reduces the complexity and workload of routing configuration and shortens the configuration time.
  • each device in Figure 1a such as: the first device, the first boundary device, the first boundary transmission device, the controller, the second boundary transmission device, the second boundary device, and the second device can all be applied to those shown in Fig. 2
  • the composition structure shown, or includes the components shown in FIG. 2. 2 is a schematic diagram of the composition of a communication device 200 provided by an embodiment of the application.
  • the communication device 200 may be a first device or a chip or a system on a chip in the first device; it may also be a first boundary device or a first boundary device.
  • the communication device 200 includes a processor 201, a transceiver 202 and a communication line 203.
  • the communication device 200 may further include a memory 204.
  • the processor 201, the memory 204, and the transceiver 202 may be connected through a communication line 203.
  • the processor 201 is a central processing unit (CPU), a general-purpose processor network processor (network processor, NP), a digital signal processor (digital signal processing, DSP), a microprocessor, a microcontroller, Programmable logic device (PLD) or any combination of them.
  • the processor 201 may also be other devices with processing functions, such as circuits, devices, or software modules, without limitation.
  • the transceiver 202 is used to communicate with other devices or other communication networks.
  • the other communication network may be Ethernet, radio access network (RAN), wireless local area networks (WLAN), etc.
  • the transceiver 202 may be a module, a circuit, a transceiver, or any device capable of implementing communication.
  • the communication line 203 is used to transmit information between the components included in the communication device 200.
  • the memory 204 is used to store instructions. Among them, the instruction may be a computer program.
  • the memory 204 may be a read-only memory (read-only memory, ROM) or other types of static storage devices that can store static information and/or instructions, and may also be a random access memory (RAM) or a random access memory (RAM).
  • RAM random access memory
  • RAM random access memory
  • RAM random access memory
  • RAM random access memory
  • EEPROM electrically erasable programmable read-only memory
  • CD- ROM compact disc read-only memory
  • optical disc storage including compact discs, laser discs, optical discs, digital versatile discs, Blu-ray discs, etc.
  • the memory 204 may exist independently of the processor 201, or may be integrated with the processor 201.
  • the memory 204 may be used to store instructions or program codes or some data.
  • the memory 204 may be located in the communication device 200 or outside the communication device 200 without limitation.
  • the processor 201 is configured to execute instructions stored in the memory 204 to implement the routing information publishing method provided in the following embodiments of the present application.
  • the processor 201 may include one or more CPUs, such as CPU0 and CPU1 in FIG. 2.
  • the communication device 200 includes multiple processors, for example, in addition to the processor 201 in FIG. 2, it may also include a processor 207.
  • the communication apparatus 200 further includes an output device 205 and an input device 206.
  • the input device 206 is a device such as a keyboard, a mouse, a microphone, or a joystick
  • the output device 205 is a device such as a display screen and a speaker.
  • the communication device 200 may be a desktop computer, a portable computer, a network server, a mobile phone, a tablet computer, a wireless terminal, an embedded device, a chip system, or a device with a similar structure in FIG. 2.
  • the composition structure shown in FIG. 2 does not constitute a limitation on the communication device.
  • the communication device may include more or less components than those shown in the figure, or combine certain components. , Or different component arrangements.
  • the chip system may be composed of chips, or may include chips and other discrete devices.
  • the controller sends the first routing information of the second boundary device sent by the second boundary transfer device to the first boundary device through the first boundary transfer device as an example.
  • the method of publishing routing information is described.
  • the second boundary transfer device may be any of the second boundary transfer devices in FIG. 1a, the second boundary device may be the second boundary device connected to the second boundary transfer device in FIG. 1a, and the first boundary transfer device may be the second boundary transfer device in FIG. 1a. Any of the first boundary transfer devices in the first boundary device, the first boundary device may be the first boundary device connected to the first boundary transfer device in FIG. 1a.
  • the controller, the second boundary transfer device, the second boundary device, the first boundary transfer device, and the first boundary device described in the following embodiments may include the components shown in FIG. 2.
  • FIG. 3 is a flowchart of a method for publishing routing information provided by this application. As shown in FIG. 3, the method includes:
  • Step 301 The second border device generates first routing information, and sends the first routing information to the second border transfer device.
  • the first routing information may include the address of the second border device and the destination address of the second network domain.
  • the address of the second boundary device includes an IP address and a MAC address.
  • the destination address of the second network domain is the address of the second device connected to the second boundary device.
  • the address of the second device includes an IP address.
  • the second device connected to the second border device may include one or more second devices.
  • the second boundary device may include the address of the second device as the destination address of the second network domain in the first routing information.
  • the second boundary device may include the addresses of the multiple second devices as the destination addresses of the second network domain in the same first routing information, Alternatively, the second border device may generate multiple pieces of first routing information, and include the address of at least one second device as the destination address of the second network domain in one piece of first routing information.
  • the second border device may carry the first routing information in an extended path calculation element protocol (PCEP) message and send it to the second border transmission device.
  • PCEP extended path calculation element protocol
  • the extended PCEP message may also include other information in its message header, as shown in Figure 4a, and may also include a version number field. , Flag bit field, message type field, message length field, object type extension field, object type field, reserved field, P field, I field and object length field.
  • the message type field and the object type extension field use new type values to identify that the extensible PCEP message carries the routing information described in this application; for the description of the remaining fields in the message header, please refer to the existing The description of the header of the PCEP message with technology will not be repeated.
  • the version number field occupies 3 bits
  • the flag bit field occupies 5 bits
  • the message type field occupies 8 bits.
  • the message length field occupies 16 bits
  • the object type field occupies 8 bits
  • the object type field occupies 4 bits
  • the reserved field occupies 2 bits
  • the P field occupies 1 bit
  • the I field occupies 1 bit Bit
  • the object length field occupies 16 bits
  • the address of the second boundary device occupies 80 bits.
  • the address of the second boundary device includes an IP address occupying 32 bits and a MAC address occupying 48 bits.
  • the length of the destination address of the second network domain is variable.
  • the destination address of the second network domain may also include a type field that occupies 16 bits, a length field that occupies 16 bits, and an occupancy 8-bit IP address prefix field.
  • the message format shown in FIG. 4a can be used.
  • the message format shown in FIG. 4c may be used.
  • the first routing information may include the destination address of the second network domain and the destination address of the second network domain. 2 etc. multiple destination addresses.
  • the second boundary device may generate the first routing information in the following manner: the second boundary device may automatically discover the second device connected to itself and obtain the address of the second device, according to the address of the second device and its own address Generate the first routing information.
  • the second boundary device may automatically discover the second device in the early stage of network planning, generate the first routing information, and send it to the second boundary transmission device.
  • Step 302 The second border transfer device receives the first routing information, and sends the first routing information to the controller based on the control plane protocol message.
  • the control plane protocol may be a physical layer (PHY) control plane protocol or a bottom layer control plane protocol, and the control plane protocol may support the second boundary transfer device to send the first routing information to the controller through the physical layer or the bottom layer.
  • PHY physical layer
  • the control plane protocol may be PCEP.
  • control plane protocol message may be a message suitable for transmission on the control plane.
  • the control plane protocol may be a protocol between the second boundary transfer device and the controller.
  • the second boundary transmission device may receive the first routing information from the second boundary device through the control protocol of the network layer or the data link layer, and send the first routing information to the controller based on the control plane protocol message of the physical layer .
  • each of the multiple second border devices shown in FIG. 1a can generate first routing information according to step 301 above, and send the first routing information to the second border transmission device connected to itself.
  • Each of the plurality of second boundary transmission devices shown in FIG. 1a may send the first routing information of at least one second boundary device received by itself to the controller according to the above step 302.
  • Step 303 The controller receives the first routing information, and sends the first routing information to the first border transfer device based on the control plane protocol message.
  • controller may be the controller shown in FIG. 1a.
  • control plane protocol message refers to the description in step 302, which will not be repeated.
  • the controller may receive first routing information sent from multiple second border transfer devices in the transport network; and send the received multiple first routing information to the first border transfer device based on the same control plane protocol message , To reduce signaling interaction.
  • Step 304 The first border transmission device receives the first routing information, and sends the first routing information to the first border device.
  • the first boundary device may be one or more boundary devices connected to the first boundary transfer device.
  • the first border transmission device sends the first routing information to the first border device based on a control protocol of the network layer or the data link layer.
  • Step 305 The first border device receives the first routing information, and generates a forwarding table according to the first routing information.
  • the forwarding table may be used to indicate the forwarding relationship between the first network domain and the second network domain.
  • the forwarding table may include a routing table and an ARP table.
  • the entries of the routing table may include the destination address, the next hop corresponding to the destination address, and the outgoing interface corresponding to the destination address.
  • the entry of the ARP table may include the IP address of the next hop and the MAC address corresponding to the IP address.
  • generating the forwarding table by the first border device according to the first routing information may include:
  • IP address of the second device uses the IP address of the second edge device corresponding to the IP address of the second device as the next hop corresponding to the destination address, and set the outgoing interface of the first edge device corresponding to the second edge device Generate routing table as an outgoing interface.
  • the IP address of the second border device is used as the IP address of the next hop, and the MAC address of the second border device corresponding to the IP address of the second border device is used as the MAC address corresponding to the IP address to generate an ARP table.
  • the boundary transmission device uses the routing flooding learning method to generate the processing pressure on hardware resources when the forwarding table is generated.
  • the first boundary device and the second boundary transmission device automatically generate the forwarding table according to the received first routing information and the second routing information, There is no need for static configuration, which reduces the complexity and workload of routing configuration and shortens the configuration time.
  • the controller sends the first routing information of the second border device sent by the second border transfer device to the first border device through the first border transfer device, similar to FIG. 3, referring to FIG. 5, control
  • the device may send the second routing information of the first border device sent by the first border transfer device to the second border device through the second border transfer device.
  • Fig. 5 is a flowchart of a method for publishing routing information provided by this application. As shown in Fig. 5, the method includes:
  • Step 501 The first border device generates second routing information, and sends the second routing information to the first border transfer device.
  • the second routing information may include the address of the first border device and the destination address of the first network domain.
  • the address of the first boundary device includes an IP address and a MAC address.
  • the destination address of the first network domain is the address of the first device connected to the first border device.
  • the address of the first device includes an IP address.
  • the second routing information is similar to the first routing information, and the related description of the second routing information can refer to the related description of the first routing information in the above step 301, which will not be repeated.
  • the first border device may generate the second routing information in the following manner: the first border device automatically discovers the first device connected to itself and obtains the address of the first device, and generates the second routing information based on the address of the first device and its own address. The second routing information.
  • the first boundary device may automatically discover the first device in the early stage of network planning, generate second routing information, and send it to the first boundary transmission device.
  • Step 502 The first border transfer device receives the second routing information, and sends the second routing information to the controller based on the control plane protocol message.
  • the processing procedure is similar to the processing procedure of the aforementioned step 302, and the relevant description of the processing procedure can refer to the relevant description of the aforementioned step 302, and will not be repeated.
  • Step 503 The controller receives the second routing information, and sends the second routing information to the second border transfer device based on the control plane protocol message.
  • the processing procedure is similar to the processing procedure of the aforementioned step 303, and the related description of the processing procedure can refer to the relevant description of the aforementioned step 303, and will not be repeated.
  • Step 504 The second border transmission device receives the second routing information, and sends the second routing information to the second border device.
  • the processing procedure is similar to the processing procedure of the aforementioned step 304, and the relevant description of the processing procedure can refer to the relevant description of the aforementioned step 304, and will not be repeated.
  • Step 505 The second border device receives the second routing information, and generates a forwarding table according to the second routing information.
  • the forwarding table may be used to indicate the forwarding relationship between the first network domain and the second network domain.
  • the forwarding table may include a routing table and an ARP table.
  • the entries of the routing table may include the destination address, the next hop corresponding to the destination address, and the outgoing interface corresponding to the destination address.
  • the entry of the ARP table may include the IP address of the next hop and the MAC address corresponding to the IP address.
  • generating the forwarding table by the second border device according to the second routing information may include:
  • IP address of the first device is used as the destination address, use the IP address of the first edge device corresponding to the IP address of the first device as the next hop corresponding to the destination address, and set the outgoing interface of the second edge device corresponding to the first edge device Generate routing table as an outgoing interface.
  • the IP address of the first border device is used as the IP address of the next hop, and the MAC address of the first border device corresponding to the IP address of the first border device is used as the MAC address corresponding to the IP address to generate an ARP table.
  • the transmission network as the OTN the transmission network as the OTN
  • the second network domain as the server-side network domain
  • the user-side network domain includes ONT and OLT.
  • the OTN includes controllers, access OTN equipment and core OTN equipment.
  • the server-side network domain includes routers and application servers.
  • the destination address of the user-side network domain is the IP of the ONT. Address, the destination address of the server-side network domain is the IP address of the application server.
  • FIG. 6 is a way of publishing routing information provided by an embodiment of the application. As shown in FIG. 6, the method includes:
  • Step 601 The OLT generates second routing information, and sends the second routing information to the access OTN device.
  • the second routing information may include the IP address of the OLT, the MAC address of the OLT, and the IP address of the ONT connected to the OLT.
  • the ONT connected to the OLT may include one or more ONTs.
  • the OLT may generate second routing information including the IP address of the OLT, the MAC address of the OLT, and the IP address of the ONT.
  • the OLT2 can carry the IP address of the OLT2, the MAC address of the OLT2, and the IP address of the ONT3 in the second routing information and send it to the access OTN device 2.
  • the OLT may include the IP addresses of the multiple ONTs in the same second routing information.
  • the OLT1 carries the IP address of OLT1, the MAC address of OLT1, the IP address of ONT1, and the IP address of ONT2 in the second routing information and sends it to the access OTN device 1.
  • the OLT may also generate multiple second routing information, and include the IP address of at least one ONT in one second routing information.
  • OLT1 can carry the IP address of OLT1, the MAC address of OLT1, and the IP address of ONT1 in the second routing information 1 and send it to the access OTN device 1.
  • the IP address of OLT1, the MAC address of OLT1 The IP address of the ONT2 is carried in the second routing information 2 and sent to the access OTN device 1.
  • the OLT may carry the second routing information in an extended PCEP message and send it to the access OTN device.
  • the extended PCEP message may include: IP address, MAC address of OLT1, IP address of ONT1.
  • the message header of the aforementioned extended PCEP message may also include: version number field, flag bit field, message type field, message length field, object type extension field, object type field, reserved field, P field, I field, and object Length field.
  • a PCEP session may be established between the OLT and the access OTN device, and the extended PCEP message is applied to send the second routing information to the access OTN device.
  • a BGP session is established between the OLT and the access OTN device, and the second routing information is sent to the access OTN device through the BGP session.
  • Step 602 Access the OTN device to receive the second routing information, and send the second routing information to the controller based on the control plane protocol message.
  • the control plane protocol message may be the aforementioned extended PCEP message.
  • the access OTN device 1 can send the received second routing information including the IP address of OLT1, the MAC address of OLT1, the IP address of ONT1, and the IP address of ONT2 to the controller to access the OTN device 2 Send the received second routing information including the IP address of OLT2, the MAC address of OLT2, and the IP address of ONT3 to the controller.
  • Step 603 The controller receives the second routing information, and sends the second routing information to the core OTN device based on the control plane protocol message.
  • the control plane protocol message may be the aforementioned extended PCEP message.
  • the controller can send the received second routing information including the IP address of OLT1, the MAC address of OLT1, the IP address of ONT1, and the IP address of ONT2 to the core OTN device 1 and the core OTN device 2.
  • the received second routing information including the IP address of OLT2, the MAC address of OLT2, and the IP address of ONT3 are also sent to the core OTN device 1 and the core OTN device 2.
  • the controller may also combine the second routing information including the IP address of OLT1, the MAC address of OLT1, the IP address of ONT1, and the IP address of ONT2, and the second routing information including the IP address of OLT2, MAC address of OLT2, and IP address of ONT3.
  • the second routing information is carried in the same control plane protocol message and sent to the core OTN device 1, and the control plane protocol message is sent to the core OTN device 2, so as to reduce signaling interaction.
  • Step 604 The core OTN device receives the second routing information, and sends the second routing information to the router.
  • the core OTN device may send the second routing information to the router based on the control protocol of the network layer or the data link layer, and the control protocol of the network layer or the link layer may be the BGP protocol or the ARP protocol.
  • the core OTN device 1 can receive the received second routing information including the IP address of OLT1, the MAC address of OLT1, the IP address of ONT1, and the IP address of ONT2, and the received IP address of OLT2, The second routing information of the MAC address of OLT2 and the IP address of ONT3 is sent to router 1.
  • the core OTN device 2 can receive the received second routing information including the IP address of OLT1, the MAC address of OLT1, the IP address of ONT1, and the IP address of ONT2, and the received IP address of OLT2, the MAC address of OLT2, and ONT3.
  • the second routing information of the IP address is sent to router 2.
  • Step 605 The router receives the second routing information, and generates a forwarding table of the router according to the second routing information.
  • the forwarding table may include a routing table and an ARP table.
  • the router 1 receives the second routing information including the IP address of OLT1, the MAC address of OLT1, the IP address of ONT1, and the IP address of ONT2, and the received IP address of OLT2, the MAC address of OLT2, and the IP address of ONT3. Take the second routing information as an example.
  • the destination address includes the IP address of ONT1, the IP address of ONT2, and the IP address of ONT3;
  • the next hop includes the IP address of OLT1 corresponding to the IP address of ONT1 Address, the IP address of OLT1 corresponding to the IP address of ONT2, and the IP address of OLT2 corresponding to the IP address of ONT3;
  • the outgoing interface includes the outgoing interface of the router corresponding to OLT1 and the outgoing interface of the router corresponding to OLT2.
  • the IP address of the next hop includes the IP address of OLT1 and the IP address of OLT2;
  • the MAC address corresponding to the IP address of the next hop includes the MAC address of OLT1 and the MAC address of OLT2.
  • different next hops can correspond to the outgoing interfaces of different routers.
  • OLT1 can correspond to outgoing interface 1 of router 1
  • OLT2 can correspond to outgoing interface 2 of routers.
  • FIG. 1b During service data transmission, take Figure 1b as an example.
  • application server 1 needs to send service data to ONT1
  • application server 1 carries the IP address of ONT1 in the service data and sends it to router 1 connected to application server 1.
  • Router 1 determines that the next hop corresponding to the IP address of ONT1 is the IP address of OLT1 according to the routing table shown in Figure 8, and the corresponding outgoing interface is the outgoing interface 1 of the router, and determines the IP address of OLT1 according to the ARP table shown in Figure 8.
  • the MAC address of OLT1 corresponds to the MAC address of OLT1 in the business data and send it to the core OTN device 1 through the outgoing interface 1.
  • the core OTN device 1 sends the business data to the access OTN device 1 through the OTN pipe according to the MAC address of OLT1
  • the access OTN device 1 sends the service data to the OLT1 according to the MAC address of the OLT1
  • the OLT1 sends the service data to the ONT1 according to the IP address of the ONT1 included in the service data.
  • the controller sends the second routing information of the OLT sent by the access OTN device to the router through the core OTN device.
  • the controller can also send the first routing information of the router sent by the core OTN device to the OLT through the access OTN device, so that the OLT generates a forwarding table according to the first routing information.
  • the processing procedure is the same as that shown in Figure 6.
  • the processing process is similar.
  • the OLT generates a routing table and an ARP table according to the first routing information of multiple routers sent by accessing OTN.
  • the entries of the routing table include the IP address of the application server, the IP address of the router corresponding to the application server, and The outgoing interface of the OLT corresponding to the router; the ARP table includes the IP address of the router and the MAC address corresponding to the IP address of the router.
  • ONT1 When ONT1 needs to send service data to application server 1, ONT1 carries the IP address of application server 1 in the service data and sends it to OLT1 connected to ONT1. OLT1 determines the application server according to the pre-generated routing table. The next hop corresponding to 1 is the IP address of router 1, and the corresponding outgoing interface is the outgoing interface of OLT1 corresponding to router 1. According to the pre-generated ARP table, the MAC address of router 1 corresponding to the IP address of router 1 is determined. The MAC address is carried in the service data and sent to the access OTN device 1 through the outgoing interface of the OLT1 corresponding to the router 1.
  • the access OTN device 1 sends the service data to the core OTN device 1 through the OTN pipe according to the MAC address of the router 1.
  • the core The OTN device 1 sends the service data to the router 1 according to the MAC address of the router 1, and the router 1 sends the service data to the application server 1 according to the IP address of the application server 1 included in the service data.
  • each device includes a hardware structure and/or software module corresponding to each function.
  • the present application can be implemented in the form of hardware or a combination of hardware and computer software. Whether a certain function is executed by hardware or computer software-driven hardware depends on the specific application and design constraint conditions of the technical solution. Professionals and technicians can use different methods for each specific application to implement the described functions, but such implementation should not be considered beyond the scope of this application.
  • the embodiment of the present application may divide the function modules of each network element according to the foregoing method examples.
  • each function module may be divided corresponding to each function, or two or more functions may be integrated into one processing module.
  • the above-mentioned integrated modules can be implemented in the form of hardware or software functional modules. It should be noted that the division of modules in the embodiments of the present application is illustrative, and is only a logical function division, and there may be other division methods in actual implementation.
  • FIG. 9 shows a communication device
  • the communication device 90 may be a boundary transfer device or a chip or a system on a chip in the boundary transfer device.
  • the communication device 90 may be used to perform the functions of the boundary transfer device involved in the above-mentioned embodiments.
  • the communication device 90 shown in FIG. 9 includes: a receiving module 901 and a sending module 902.
  • the receiving module 901 is configured to receive the first routing information including the address of the second border device and the destination address of the second network domain from the controller based on the control plane protocol message.
  • the sending module 902 is configured to send the first routing information to the first border device; the first routing information is used to generate the transfer of the first border device for indicating the forwarding relationship between the first network domain and the second network domain Published.
  • the receiving module 901 is also used to receive second routing information including the address of the first border device and the destination address of the first network domain from the first border device; the sending module 902 is also used to The second routing information is sent to the controller.
  • the address includes an IP address and/or MAC address.
  • the forwarding table includes a routing table and/or an ARP table.
  • the first boundary device is a user-side network device and the second boundary device is a server-side network device; or the first boundary device is a server-side network device and the second boundary device is a user-side network device.
  • the sending module 902 is further configured to send the first routing information to the first border device based on the control protocol of the network layer or the data link layer.
  • the receiving module 901 and the sending module 902 in FIG. 9 can be replaced by a transceiver, and the transceiver can integrate the functions of the receiving module 901 and the sending module 902.
  • the communication device 90 shown in FIG. 9 may also include a memory.
  • the receiving module 901 and the sending module 902 are replaced by transceivers, the communication device 90 involved in the embodiment of the present application may be the communication device shown in FIG. 2.
  • FIG. 10 shows a communication device, and the communication device 100 may be a controller or a chip in the controller or a system on a chip.
  • the communication device 100 can be used to perform the functions of the controller involved in the above-mentioned embodiments.
  • the communication device 100 shown in FIG. 10 includes: a receiving module 1001 and a sending module 1002.
  • the receiving module 1001 is configured to receive the first routing information including the address of the second border device and the destination address of the second network domain from the second border transfer device based on the control plane protocol message.
  • the sending module 1002 is configured to send the first routing information to the first border transmission device; the first routing information is used to generate the information of the first border device for indicating the forwarding relationship between the first network domain and the second network domain Forwarding table.
  • the receiving module 1001 is further configured to receive the second routing information from the first border transfer device that includes the address of the first border device and the destination address of the first network domain based on the control plane protocol message; and send;
  • the module 1002 is also used to send the second routing information to the second border transmission device; the second routing information is used to generate the second border device's information for indicating the forwarding relationship between the first network domain and the second network domain Forwarding table.
  • the receiving module 1001 is also used to receive first routing information from multiple second boundary transmission devices in the transmission network; the sending module 1002 is also used to transmit multiple received second boundary transmissions.
  • the first routing information of the device is sent to the first border transfer device based on the same control plane protocol message.
  • the receiving module 1001 is also used to receive second routing information from multiple first boundary transmission devices in the transmission network; the sending module 1002 is also used to transmit the received multiple first boundary transmissions The second routing information of the device is sent to the second border transfer device based on the same control plane protocol message.
  • the first boundary transmission device is a user-side boundary transmission device
  • the second boundary transmission device is a server-side boundary transmission device
  • the first boundary transmission device is a server-side boundary transmission device
  • the second boundary transmission device is a server-side boundary transmission device.
  • the device is a user-side boundary transmission device.
  • the sending module 1002 is also used to send the first routing information to the first border transfer device based on the control plane protocol message; the sending module 1002 is also used to send the first routing information to the second border transfer device based on the control plane protocol message Send the second routing information.
  • the embodiment of the present application also provides a computer-readable storage medium. All or part of the processes in the foregoing method embodiments may be completed by a computer program instructing relevant hardware.
  • the program may be stored in the foregoing computer-readable storage medium. When the program is executed, it may include processes as in the foregoing method embodiments. .
  • the computer-readable storage medium may be an internal storage unit of the terminal (including the data sending end and/or the data receiving end) of any of the foregoing embodiments, such as the hard disk or memory of the terminal.
  • the computer-readable storage medium may also be an external storage device of the terminal, such as a plug-in hard disk, a smart media card (SMC), a secure digital (SD) card, and a flash memory card equipped on the terminal.
  • SMC smart media card
  • SD secure digital
  • the aforementioned computer-readable storage medium may also include both an internal storage unit of the aforementioned terminal and an external storage device.
  • the aforementioned computer-readable storage medium is used to store the aforementioned computer program and other programs and data required by the aforementioned terminal.
  • the aforementioned computer-readable storage medium can also be used to temporarily store data that has been output or will be output.
  • At least one (item) refers to one or more
  • “multiple” refers to two or more than two
  • “at least two (item)” refers to two or three And three or more
  • "and/or” is used to describe the association relationship of the associated objects, indicating that there can be three kinds of relationships, for example, "A and/or B” can mean: there is only A, only B and A at the same time And B three cases, where A, B can be singular or plural.
  • the character “/” generally indicates that the associated objects are in an “or” relationship.
  • “The following at least one item (a)” or similar expressions refers to any combination of these items, including any combination of a single item (a) or a plurality of items (a).
  • At least one of a, b, or c can mean: a, b, c, "a and b", “a and c", “b and c", or "a and b and c" ", where a, b, and c can be single or multiple.
  • the disclosed device and method may be implemented in other ways.
  • the device embodiments described above are merely illustrative.
  • the division of the modules or units is only a logical function division. In actual implementation, there may be other division methods, for example, multiple units or components may be divided. It can be combined or integrated into another device, or some features can be omitted or not implemented.
  • the displayed or discussed mutual coupling or direct coupling or communication connection may be indirect coupling or communication connection through some interfaces, devices or units, and may be in electrical, mechanical or other forms.
  • the units described as separate parts may or may not be physically separate.
  • the parts displayed as units may be one physical unit or multiple physical units, that is, they may be located in one place, or they may be distributed to multiple different places. . Some or all of the units may be selected according to actual needs to achieve the objectives of the solutions of the embodiments.
  • the functional units in the various embodiments of the present application may be integrated into one processing unit, or each unit may exist alone physically, or two or more units may be integrated into one unit.
  • the above-mentioned integrated unit can be implemented in the form of hardware or software functional unit.
  • the integrated unit is implemented in the form of a software functional unit and sold or used as an independent product, it can be stored in a readable storage medium.
  • the technical solutions of the embodiments of the present application are essentially or the part that contributes to the prior art, or all or part of the technical solutions can be embodied in the form of a software product, and the software product is stored in a storage medium. It includes several instructions to make a device (which may be a single-chip microcomputer, a chip, etc.) or a processor (processor) execute all or part of the steps of the method described in each embodiment of the present application.
  • the aforementioned storage media include: U disk, mobile hard disk, ROM, RAM, magnetic disk or optical disk and other media that can store program codes.

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Abstract

本申请实施例提供路由信息的发布方法、装置及系统，涉及通信技术领域，能够解决现有应用OTN的通信系统中，配置路由表和ARP时，应用静态配置方式会导致路由配置工作的复杂度高、工作量大且耗时，应用路由洪泛学习方式会导致预先建立的OTN管道数量较多，造成网络资源浪费且对网络中各设备的硬件资源压力大的问题。该方法包括：连接第一网络域中的第一边界设备的边界传送设备基于控制平面协议消息，接收来自控制器的包括位于第二网络域的第二边界设备的地址和第二网络域的目的地址的第一路由信息，并将第一路由信息发送给第一边界设备，由第一边界设备根据该第一路由信息生成第一边界设备的、用于指示第一网络域和第二网络域之间的转发关系的转发表。

Description

路由信息的发布方法、装置及系统
本申请要求于2020年1月22日提交中国国家知识产权局、申请号为202010075539.9、发明名称为“路由信息的发布方法、装置及系统”的中国专利申请的优先权，其全部内容通过引用结合在本申请中。
技术领域
本申请涉及通信技术领域，尤其是涉及一种路由信息的发布方法、装置及系统。
背景技术
随着通信技术的高速发展，虚拟现实(virtual reality，VR)游戏、超清视频等业务的普遍使用，使得用户对业务的大带宽和低时延的需求越来越强烈。为了满足用户需求，提出应用光传输网络(optical transport network，OTN)对业务数据进行传输。
例如，如图1b所示，OTN包括多个OTN管道(例如，OTN管道①、OTN管道②、OTN管道③和OTN管道④)，每个OTN管道的一端为接入OTN设备，另一端为核心OTN设备，光缆终端(optical line terminal，OLT)与路由器之间通过OTN管道建立连接。光网络终端(optical network terminal，ONT)可以将目的地址包括在业务数据中发送给OLT，该目的地址用于标识应用服务器，OLT根据业务数据的目的地址从预先配置的路由表中确定下一跳路由器的IP地址，并根据预先配置的地址解析协议(address resolution protocol，ARP)表确定下一跳路由器的MAC地址，根据该MAC地址将业务数据通过OTN管道发送至下一跳路由器，下一跳路由器根据业务数据的目的地址将业务数据转发给相应的应用服务器，由应用服务器对业务数据进行处理。相应的，应用服务器向ONT发送业务数据的过程与上述过程类似，不予赘述。
现有技术中，可以应用下述两种方式为OLT和路由器配置路由表和ARP表：一、静态配置的方式，应用人工或者借助于自动化配置工具(如：软件定义网络(software defined network，SDN)控制器、网络管理系统等)为每个OLT和每个路由器配置路由表和ARP表。二、路由洪泛学习的方式，由各个OLT进行路由洪泛学习得到路由表以及ARP表，如：OLT可以通过与其连接的OTN管道洪泛内部网关协议(interior gateway protocol，IGP)消息得到路由表，并根据地址解析协议对路由表进行学习得到ARP表；类似的，各个路由器也可以应用路由洪泛学习的方式得到路由表以及ARP表。
但是，现有应用OTN的通信系统中，OLT数量巨大，如果应用静态配置的方式，会导致整个通信系统中路由配置工作的复杂度高、工作量大且耗时。如果应用路由洪泛学习的方式，网络中OLT数量巨大，预先配置的OTN管道的数量较多，进行路由洪泛时对通信系统中各个OLT和各个路由器的中央处理器(central processing unit，CPU)、内存等硬件资源的压力非常大，而OLT一般为小型设备，很难支持该种方式，且在数据传输过程中，当某一OTN管道并未被使用时，由于该OTN管道已经被配置，仍会占用网络资源，造成网络资源浪费。
发明内容
本申请提供一种路由信息的发布方法、装置及系统，用以解决现有应用OTN的通信系统中，配置路由表和ARP时，应用静态配置方式会导致路由配置工作的复杂度高、工作量大且耗时，应用路由洪泛学习方式会导致预先建立的OTN管道数量较多，造成网络资源浪费且对网络中各设备的硬件资源压力大的技术问题。
为达到上述目的，本申请实施例采用如下技术方案：
第一方面，提供一种路由信息的发布方法，该方法应用于位于传送网络的边界传送设备，传送网络通过控制器进行集中控制，传送网络用于连接第一网络域和第二网络域，第一网络域包括第一边界设备，第二网络域包括第二边界设备，边界传送设备与第一边界设备相连，该方法包括：边界传送设备基于控制平面协议消息接收来自控制器的包括第二边界设备的地址和第二网络域的目的地址的第一路由信息，并将第一路由信息发送给第一边界设备；该第一路由信息用于生成第一边界设备的用于指示第一网络域和第二网络域之间的转发关系的转发表。
基于第一方面所述的方法，边界传送设备基于控制平面协议接收控制器发送的路由信息，并将接收到的路由信息发送给边界设备，由边界设备根据接收到的路由信息自动生成转发表。如此，可以通过现有控制平面协议在传送网络内发送路由信息，实现传送网络内部控制平面可达，无需占用传送网络的大量数据带宽资源发送路由信息，节省传送网络的数据平面的网络资源；且可以不用预先建立海量的传送管道进行路由洪泛，无需边界设备和边界传送设备应用路由洪泛学习方式通过传送管道生成转发表，降低边界设备和边界传送设备应用路由洪泛方式生成转发表的硬件资源处理压力。同时，可以由边界设备根据边界传送设备发送的路由信息自动生成转发表，无需通过静态配置方式将转发表配置给边界设备，降低路由配置工作的复杂度和工作量，缩短配置时间。
在一种可能的设计中，结合第一方面，边界传送设备接收来自第一边界设备的包括第一边界设备的地址和第一网络域的目的地址的第二路由信息；并将第二路由信息发送给控制器。
基于该可能的设计，边界传送设备将第一边界设备的第二路由信息发送给控制器，可以使得控制器将第一边界设备的第二路由信息通过其他与第二边界设备相连的边界传送设备发送给第二边界设备，使得第二边界设备根据接收到的第二路由信息自动生成第二边界设备的转发表，根据该转发表实现业务数据在第一网络域与第二网络域的转发，无需通过静态配置方式将转发表配置给边界设备，降低路由配置工作的复杂度和工作量，缩短配置时间。
在一种可能的设计中，结合第一方面或者第一方面的可能的设计，第二边界设备的地址包括IP地址和/或MAC地址。例如，第二边界设备的地址包括第二边界设备的IP地址和MAC地址，第二网络域的目的地址包括第二网络域的IP地址。
在一种可能的设计中，结合第一方面或者第一方面的可能的设计，转发表包括路由表和ARP表。
基于该可能的设计，第一边界设备根据第一路由信息建立路由表和ARP表，便于在业务数据传输过程中，可以根据路由表确定下一跳的IP地址，根据ARP表确定下一跳的IP地址对应的MAC地址，根据该MAC地址将业务数据发送至下一跳，实现三层路由转发以及 二层路由转发。
在一种可能的设计中，结合第一方面或者第一方面的可能的设计，第一边界设备为用户侧网络设备，第二边界设备为服务器侧网络设备；或者第一边界设备为服务器侧网络设备，第二边界设备为用户侧网络设备。
基于该可能的设计，第一边界设备可以为用户侧网络设备，第二边界设备可以为服务器侧网络设备；或者第一边界设备可以为服务器侧网络设备，第二边界设备可以为用户侧网络设备，不予限制，即可以由用户侧设备实现该实施例所述的方法或者由服务侧设备实现该实施例所述的方法，提高方法实施的灵活性。
在一种可能的设计中，结合第一方面或者第一方面的可能的设计，边界传送设备基于网络层或数据链路层的控制协议向第一边界设备发送第一路由信息。
基于该可能的设计，边界传送设备可以基于网络层或数据链路层的控制协议向边界设备发送路由信息，实现控制平面可达，无需占用大量数据带宽资源，节省数据平面的网络资源。
第二方面，提供了一种通信装置，通信装置可以实现上述第一方面或者第一方面可能的设计中边界传送设备所执行的功能，所述功能可以通过硬件执行相应的软件实现。所述硬件或软件包括一个或多个上述功能相应的模块。如：该通信装置包括：接收模块，发送模块。
接收模块，用于基于控制平面协议消息接收来自控制器的包括第二边界设备的地址和第二网络域的目的地址的第一路由信息。
发送模块，用于将第一路由信息发送给第一边界设备；该第一路由信息用于生成第一边界设备的用于指示第一网络域和第二网络域之间的转发关系的转发表。
其中，该通信装置的具体实现方式可参考第一方面或第一方面的任一种可能的设计提供的路由信息的发布方法中边界传送设备的行为功能，基于第二方面所述的通信装置，边界传送设备基于控制平面协议接收控制器发送的路由信息，并将接收到的路由信息发送给边界设备，由边界设备根据接收到的路由信息自动生成转发表。如此，可以通过现有控制平面协议在传送网络内发送路由信息，实现传送网络内部控制平面可达，无需占用传送网络的大量数据带宽资源发送路由信息，节省传送网络的数据平面的网络资源；且可以不用预先建立海量的传送管道进行路由洪泛，无需边界设备和边界传送设备应用路由洪泛学习方式通过传送管道生成转发表，降低边界设备和边界传送设备应用路由洪泛方式生成转发表的硬件资源处理压力。同时，可以由边界设备根据边界传送设备发送的路由信息自动生成转发表，无需通过静态配置方式将转发表配置给边界设备，降低路由配置工作的复杂度和工作量，缩短配置时间。
在一种可能的设计中，结合第二方面，接收模块，还用于接收来自第一边界设备的包括第一边界设备的地址和第一网络域的目的地址的第二路由信息；发送模块，还用于将第二路由信息发送给控制器。
基于该可能的设计，边界传送设备将第一边界设备的第二路由信息发送给控制器，可以使得控制器将第一边界设备的第二路由信息通过其他与第二边界设备相连的边界传送设备发送给第二边界设备，使得第二边界设备根据接收到的第二路由信息自动生成第二边界设备的转发表，根据该转发表实现业务数据在第一网络域与第二网络域的转发，无需通 过静态配置方式将转发表配置给边界设备，降低路由配置工作的复杂度和工作量，缩短配置时间。
在一种可能的设计中，结合第二方面或者第二方面的可能的设计，第二边界设备的地址包括IP地址和/或MAC地址。例如，第二边界设备的地址包括第二边界设备的IP地址和MAC地址，第二网络域的目的地址包括第二网络域的IP地址。
在一种可能的设计中，结合第二方面或者第二方面的可能的设计，转发表包括路由表和ARP表。
基于该可能的设计，第一边界设备根据第一路由信息建立路由表和ARP表，便于在业务数据传输过程中，可以根据路由表确定下一跳的IP地址，根据ARP表确定下一跳的IP地址对应的MAC地址，根据该MAC地址将业务数据发送至下一跳，实现三层路由转发以及二层路由转发。
在一种可能的设计中，结合第二方面或者第二方面的可能的设计，第一边界设备为用户侧网络设备，第二边界设备为服务器侧网络设备；或者第一边界设备为服务器侧网络设备，第二边界设备为用户侧网络设备。
基于该可能的设计，第一边界设备可以为用户侧网络设备，第二边界设备可以为服务器侧网络设备；或者第一边界设备可以为服务器侧网络设备，第二边界设备可以为用户侧网络设备，不予限制，即可以由用户侧设备实现该实施例所述的方法或者由服务侧设备实现该实施例所述的方法，提高方法实施的灵活性。
在一种可能的设计中，结合第二方面或者第二方面的可能的设计，发送模块，还用于基于网络层或数据链路层的控制协议向第一边界设备发送第一路由信息。
基于该可能的设计，边界传送设备可以基于网络层或数据链路层的控制协议向边界设备发送路由信息，实现控制平面可达，无需占用大量数据带宽资源，节省数据平面的网络资源。
第三方面，提供了一种通信装置，该通信装置可以为边界传送设备或者边界传送设备中的芯片或者片上系统。该通信装置可以实现上述各方面或者各可能的设计中边界传送设备所执行的功能，所述功能可以通过硬件实现。一种可能的设计中，该通信装置可以包括：收发器。收发器可以用于支持通信装置实现上述第一方面或者第一方面的任一种可能的设计中所涉及的功能。例如：收发器可以用于基于控制平面协议消息接收来自控制器的包括第二边界设备的地址和第二网络域的目的地址的第一路由信息，收发器还可以用于将第一路由信息发送给第一边界设备；该第一路由信息用于生成第一边界设备的用于指示第一网络域和第二网络域之间的转发关系的转发表。在又一种可能的设计中，所述通信装置还可以包括存储器，存储器，用于保存通信装置必要的计算机执行指令和数据。当该通信装置运行时，该收发器执行该存储器存储的该计算机执行指令，以使该通信装置执行如上述第一方面或者第一方面的任一种可能的设计所述的路由信息的发布方法。
其中，该通信装置的具体实现方式可参考第一方面或第一方面的任一种可能的设计提供的路由信息的发布方法中边界传送设备的行为功能。
第四方面，提供了一种通信装置，该通信装置包括一个或多个处理器和一个或多个存储器；一个或多个存储器与一个或多个处理器耦合，一个或多个存储器用于存储计算机程序代码或计算机指令；当一个或多个处理器执行计算机指令时，使得通信装置执行如第一 方面或者第一方面的任一可能的设计所述的路由信息的发布方法。
第五方面，提供了一种计算机可读存储介质，该计算机可读存储介质存储有计算机指令或程序，当计算机指令或程序在计算机上运行时，使得计算机执行如第一方面或者第一方面的任一可能的设计所述的路由信息的发布方法。
第六方面，提供了一种包含指令的计算机程序产品，当其在计算机上运行时，使得计算机执行如第一方面或者第一方面的任一可能的设计所述的路由信息的发布方法。
其中，第三方面至第六方面中任一种设计方式所带来的技术效果可参见上述第一方面至第二方面的任一种可能的设计所带来的技术效果，不再赘述。
第七方面，提供一种路由信息的发布方法，该方法应用于控制器，控制器对包括第一边界传送设备和第二边界传送设备的传送网络进行集中控制，传送网络用于连接第一网络域和第二网络域，第一网络域包括第一边界设备，第二网络域包括第二边界设备，第一边界传送设备与第一边界设备相连，第二边界传送设备与第二边界设备相连，该方法包括：控制器基于控制平面协议消息接收来自第二边界传送设备的包括第二边界设备的地址和第二网络域的目的地址的第一路由信息；并将第一路由信息发送给第一边界传送设备；该第一路由信息用于生成第一边界设备的用于指示第一网络域和第二网络域之间的转发关系的转发表。
基于第七方面所述的方法，控制器基于控制平面协议消息接收路由信息，并将接收到的路由信息发送给边界设备，由边界设备根据接收到的路由信息自动生成转发表，如此，可以通过现有控制平面协议在传送网络内发送路由信息，实现传送网络内部控制平面可达，无需占用传送网络的大量数据带宽资源发送路由信息，节省传送网络的数据平面的网络资源；且可以不用预先建立海量的传送管道进行路由洪泛，无需边界设备和边界传送设备应用路由洪泛学习方式通过传送管道生成转发表，降低边界设备和边界传送设备应用路由洪泛方式生成转发表的硬件资源处理压力。同时，可以由边界设备根据边界传送设备发送的路由信息自动生成转发表，无需通过静态配置方式将转发表配置给边界设备，降低路由配置工作的复杂度和工作量，缩短配置时间。
在一种可能的设计中，结合第七方面，控制器基于控制平面协议消息接收来自第一边界传送设备的包括第一边界设备的地址和第一网络域的目的地址的第二路由信息；并将第二路由信息发送给第二边界传送设备；其中，第二路由信息用于生成第二边界设备的用于指示第一网络域和第二网络域之间的转发关系的转发表。
基于该可能的设计，控制器基于控制平面协议消息接收路由信息，并将接收到的路由信息发送给边界设备，由边界设备根据接收到的路由信息自动生成转发表，如此，可以通过现有控制平面协议在传送网络内发送路由信息，实现传送网络内部控制平面可达，无需占用传送网络的大量数据带宽资源发送路由信息，节省传送网络的数据平面的网络资源；且可以不用预先建立海量的传送管道进行路由洪泛，无需边界设备和边界传送设备应用路由洪泛学习方式通过传送管道生成转发表，降低边界设备和边界传送设备应用路由洪泛方式生成转发表的硬件资源处理压力。同时，可以由边界设备根据边界传送设备发送的路由信息自动生成转发表，无需通过静态配置方式将转发表配置给边界设备，降低路由配置工作的复杂度和工作量，缩短配置时间。
在一种可能的设计中，结合第七方面或者第七方面的可能的设计，控制器接收来自传 送网络中多个第二边界传送设备的第一路由信息；并将接收到的多个第二边界传送设备的第一路由信息基于同一个控制平面协议消息发送给第一边界传送设备。
基于该可能的设计，控制器可以基于同一个控制平面协议消息将多个第二边界传送设备的第一路由信息发送给第一边界传送设备，以减少信令交互。
在一种可能的设计中，结合第七方面或者第七方面的可能的设计，控制器接收来自传送网络中多个第一边界传送设备的第二路由信息；并将接收到的多个第一边界传送设备的第二路由信息基于同一个控制平面协议消息发送给第二边界传送设备。
基于该可能的设计，控制器可以基于同一个控制平面协议消息将多个第一边界传送设备的第二路由信息发送给第一边界传送设备，以减少信令交互。
在一种可能的设计中，结合第七方面或者第七方面的可能的设计，第一边界传送设备为用户侧边界传送设备，第二边界传送设备为服务器侧边界传送设备；或者，第一边界传送设备为服务器侧边界传送设备，第二边界传送设备为用户侧边界传送设备。
基于该可能的设计，第一边界传送设备可以为用户侧边界传送设备，第二边界传送设备可以为服务器侧边界传送设备；或者，第一边界传送设备可以为服务器侧边界传送设备，第二边界传送设备可以为用户侧边界传送设备，不予限制，即可以由用户侧设备实现该实施例所述的方法或者由服务侧设备实现该实施例所述的方法，提高方法实施的灵活性。
在一种可能的设计中，结合第七方面或者第七方面的可能的设计，控制器基于控制平面协议消息向第一边界传送设备发送第一路由信息；控制器基于控制平面协议消息向第二边界传送设备发送第二路由信息。
基于该可能的设计，控制器可以基于控制平面协议消息向边界传送设备发送路由信息，实现控制平面可达，无需占用大量数据带宽资源，节省数据平面的网络资源。
第八方面，提供了一种通信装置，通信装置可以实现上述第七方面或者第七方面可能的设计中控制器所执行的功能，所述功能可以通过硬件执行相应的软件实现。所述硬件或软件包括一个或多个上述功能相应的模块。如：该通信装置包括：接收模块，发送模块。
接收模块，用于基于控制平面协议消息接收来自第二边界传送设备的包括第二边界设备的地址和第二网络域的目的地址的第一路由信息。
发送模块，用于将第一路由信息发送给第一边界传送设备；该第一路由信息用于生成第一边界设备的用于指示第一网络域和第二网络域之间的转发关系的转发表。
其中，该通信装置的具体实现方式可参考第七方面或者第七方面的任一种可能的设计提供的路由信息的发布方法中控制器的行为功能，基于第八方面所述的通信装置，控制器基于控制平面协议消息接收路由信息，并将接收到的路由信息发送给边界设备，由边界设备根据接收到的路由信息自动生成转发表，如此，可以通过现有控制平面协议在传送网络内发送路由信息，实现传送网络内部控制平面可达，无需占用传送网络的大量数据带宽资源发送路由信息，节省传送网络的数据平面的网络资源；且可以不用预先建立海量的传送管道进行路由洪泛，无需边界设备和边界传送设备应用路由洪泛学习方式通过传送管道生成转发表，降低边界设备和边界传送设备应用路由洪泛方式生成转发表的硬件资源处理压力。同时，可以由边界设备根据边界传送设备发送的路由信息自动生成转发表，无需通过静态配置方式将转发表配置给边界设备，降低路由配置工作的复杂度和工作量，缩短配置时间。
在一种可能的设计中，结合第八方面，接收模块，还用于基于控制平面协议消息接收来自第一边界传送设备的包括第一边界设备的地址和第一网络域的目的地址的第二路由信息；发送模块，还用于并将第二路由信息发送给第二边界传送设备；第二路由信息用于生成第二边界设备的用于指示第一网络域和第二网络域之间的转发关系的转发表。
基于该可能的设计，控制器基于控制平面协议消息接收路由信息，并将接收到的路由信息发送给边界设备，由边界设备根据接收到的路由信息自动生成转发表，如此，可以通过现有控制平面协议在传送网络内发送路由信息，实现传送网络内部控制平面可达，无需占用传送网络的大量数据带宽资源发送路由信息，节省传送网络的数据平面的网络资源；且可以不用预先建立海量的传送管道进行路由洪泛，无需边界设备和边界传送设备应用路由洪泛学习方式通过传送管道生成转发表，降低边界设备和边界传送设备应用路由洪泛方式生成转发表的硬件资源处理压力。同时，可以由边界设备根据边界传送设备发送的路由信息自动生成转发表，无需通过静态配置方式将转发表配置给边界设备，降低路由配置工作的复杂度和工作量，缩短配置时间。
在一种可能的设计中，结合第八方面或者第八方面的可能的设计，接收模块，还用于接收来自传送网络中多个第二边界传送设备的第一路由信息；发送模块，还用于将接收到的多个第二边界传送设备的第一路由信息基于同一个控制平面协议消息发送给第一边界传送设备。
基于该可能的设计，控制器可以基于同一个控制平面协议消息将多个第二边界传送设备的第一路由信息发送给第一边界传送设备，以减少信令交互。
在一种可能的设计中，结合第八方面或者第八方面的可能的设计，接收模块，还用于接收来自传送网络中多个第一边界传送设备的第二路由信息；发送模块，还用于将接收到的多个第一边界传送设备的第二路由信息基于同一个控制平面协议消息发送给第二边界传送设备。
基于该可能的设计，控制器可以基于同一个控制平面协议消息将多个第一边界传送设备的第二路由信息发送给第一边界传送设备，以减少信令交互。
在一种可能的设计中，结合第八方面或者第八方面的可能的设计，第一边界传送设备为用户侧边界传送设备，第二边界传送设备为服务器侧边界传送设备；或者，第一边界传送设备为服务器侧边界传送设备，第二边界传送设备为用户侧边界传送设备。
基于该可能的设计，第一边界传送设备可以为用户侧边界传送设备，第二边界传送设备可以为服务器侧边界传送设备；或者，第一边界传送设备可以为服务器侧边界传送设备，第二边界传送设备可以为用户侧边界传送设备，不予限制，即可以由用户侧设备实现该实施例所述的方法或者由服务侧设备实现该实施例所述的方法，提高方法实施的灵活性。
在一种可能的设计中，结合第八方面或者第八方面的可能的设计，发送模块，还用于基于控制平面协议消息向第一边界传送设备发送第一路由信息；发送模块，还用于基于控制平面协议消息向第二边界传送设备发送第二路由信息。
基于该可能的设计，控制器可以基于控制平面协议向边界传送设备发送路由信息，实现控制平面可达，无需占用大量数据带宽资源，节省数据平面的网络资源。
第九方面，提供了一种通信装置，该通信装置可以为控制器或者控制器中的芯片或者片上系统。该通信装置可以实现上述各方面或者各可能的设计中控制器所执行的功能，所 述功能可以通过硬件实现。一种可能的设计中，该通信装置可以包括：收发器。收发器可以用于支持通信装置实现上述第七方面或者第七方面的任一种可能的设计中所涉及的功能。例如：收发器可以用于基于控制平面协议消息接收来自第二边界传送设备的包括第二边界设备的地址和第二网络域的目的地址的第一路由信息；收发器还可以用于将第一路由信息发送给第一边界传送设备；该第一路由信息用于生成第一边界设备的用于指示第一网络域和第二网络域之间的转发关系的转发表。在又一种可能的设计中，所述通信装置还可以包括存储器，存储器，用于保存通信装置必要的计算机执行指令和数据。当该通信装置运行时，该收发器执行该存储器存储的该计算机执行指令，以使该通信装置执行如上述第七方面或者第七方面的任一种可能的设计所述的路由信息的发布方法。
其中，该通信装置的具体实现方式可参考第七方面或第七方面的任一种可能的设计提供的路由信息的发布方法中边界传送设备的行为功能。
第十方面，提供了一种通信装置，该通信装置包括一个或多个处理器和一个或多个存储器；一个或多个存储器与一个或多个处理器耦合，一个或多个存储器用于存储计算机程序代码或计算机指令；当一个或多个处理器执行计算机指令时，使得通信装置执行如第七方面或者第七方面的任一可能的设计所述的路由信息的发布方法。
第十一方面，提供了一种计算机可读存储介质，该计算机可读存储介质存储有计算机指令或程序，当计算机指令或程序在计算机上运行时，使得计算机执行如第七方面或者第七方面的任一可能的设计所述的路由信息的发布方法。
第十二方面，提供了一种包含指令的计算机程序产品，当其在计算机上运行时，使得计算机执行如第七方面或者第七方面的任一可能的设计所述的路由信息的发布方法。
其中，第九方面至第十二方面中任一种设计方式所带来的技术效果可参见上述第七方面至第八方面的任一种可能的设计所带来的技术效果，不再赘述。
第十三方面，提供了一种通信系统，该通信系统包括如第二方面或第二方面的任一可能的设计所述的通信装置以及如第八方面或者第八方面的任一可能的设计所述的通信装置。
附图说明
图1a为本申请实施例提供的一种通信系统的简化示意图；
图1b为本申请实施例提供的一种通信系统的简化示意图；
图2为本申请实施例提供的一种通信装置的组成示意图；
图3为本申请实施例提供的一种路由信息的发布方法的示意图；
图4a为本申请实施例提供的一种路由信息的帧结构示意图；
图4b为本申请实施例提供的一种目的地址的帧结构示意图；
图4c为本申请实施例提供的一种路由信息的帧结构示意图；
图5为本申请实施例提供的一种路由信息的发布方法的示意图；
图6为本申请实施例提供的一种路由信息的发布方法的示意图；
图7为本申请实施例提供的一种第二路由信息的帧结构示意图；
图8为本申请实施例提供的一种转发表的示意图；
图9为本申请实施例提供的一种通信装置的组成示意图；
图10为本申请实施例提供的一种通信装置的组成示意图。
具体实施方式
下面结合说明书附图，对本申请实施例提供的路由信息的发布方法进行说明。
本申请实施例提供的路由信息的发布方法可用于如图1a所示的通信系统中，该通信系统包括第一网络域、传送网络和第二网络域。其中，传送网络用于连接第一网络域与第二网络域，实现第一网络域与第二网络域之间业务数据的传输。
具体的，传送网络可以为用于传输业务数据的网络，如：可以为光传输网络(optical transport network，OTN)、同步数字体系(synchronous digital hierarchy，SDH)网络等网络，不予限制。第一网络域和第二网络域可以为互联网协议(internet protocol，IP)网络。
下面以图1a和图1b为例，对本申请实施例提供的路由信息的发布方法进行描述。
具体的，传送网络可以包括多个传送管道、第一边界传送设备和第二边界传送设备。例如，如图1a所示，传送网络可以包括传送管道①、传送管道②、传送管道③和传送管道④。每个传送管道的一端为第一边界传送设备，另一端为第二边界传送设备，第一边界传送设备可以与至少一个第一边界设备相连，第二边界传送设备可以与至少一个第二边界设备相连，即第一边界设备与第二边界设备之间通过传送管道建立连接。不同的传送管道对应不同的带宽和时延，通过应用不同的传送管道传输不同的业务数据可以实现带宽隔离和稳定时延，满足用户需求。
进一步的，如图1a所示，传送网络还可以包括控制器，通过控制器对传送网络进行集中控制，该控制器可以为独立部署于传送网络之外的软件定义网络(software defined network，SDN)控制器或者位于传送网络中的集中控制单元(central control unit，CCU)。
需要说明的是，控制器可以不限于如图1a所示集中部署在传送网络中，也可以与传送网络独立部署。本申请实施例中不限制传送管道的命名。示例性的，当传送网络为OTN时，传送管道可以命名为OTN管道。
其中，第一网络域可以包括至少一个第一边界设备、以及与第一边界设备相连的至少一个第一设备，第一边界设备可以为发送/接收包括目的地址的业务数据的设备，第一边界设备可以为用于传输第一设备与传送网络之间的业务数据的设备。
类似的，第二网络域可以包括至少一个第二边界设备、以及与第二边界设备相连的至少一个第二设备，第二边界设备可以为发送/接收包括目的地址的业务数据的设备，第二边界设备可以为用于传输第二设备与传送网络之间的业务数据的设备。
本申请实施例中，第一网络域、第二网络域为通过传送网络相互传输业务数据的两个网络域。以第一网络域通过传送网络向第二网络域发送业务数据为例，如图1a所示，第一设备将包括目的地址的业务数据发送给第一边界设备，该目的地址用于标识第二设备；第一边界设备根据接收到的业务数据的目的地址从预先配置的路由表中确定第一边界设备下一跳的第二边界设备的IP地址，并根据预先配置的ARP表确定第一边界设备下一跳的第二边界设备的MAC地址，根据该MAC地址将业务数据通过OTN管道发送至第一边界设备下一跳的第二边界设备；下一跳第二边界设备根据接收到的业务数据的目的地址转发给相应的第二设备。
需要说明的是，第二网络域通过传送网络向第一网络域发送业务数据的过程与上述过程类似，不予赘述。
示例性的，第一网络域可以为用户侧网络域，第二网络域可以为服务器侧网络域；或者，第一网络域可以为服务器侧网络域，第二网络域可以为用户侧网络域。
以第一网络域为用户侧网络域，传送网络为OTN，第二网络域为服务器侧网络域为例：第一设备可以为用户侧网络设备，第一边界设备可以为用户侧边界设备，第一边界传送设备可以为用户侧边界OTN设备，第二边界传送设备可以为服务器侧边界OTN设备，第二边界设备可以为服务器侧边界设备，第二设备可以为服务器侧网络设备。用户侧边界设备可以与服务器侧边界设备通过OTN管道建立连接，OTN管道的一端为用户侧边界OTN设备，另一端为服务器侧边界OTN设备。
示例性的，用户侧网络设备可以为图1b所示的ONT；用户侧边界设备可以为图1b所示的OLT；用户侧边界传送设备可以为图1b所示的接入OTN设备；服务器侧边界传送设备可以为图1b所示的核心OTN设备；服务器侧边界设备可以为网关或图1b所示的路由器等路由交换设备；服务器侧网络设备可以为图1b所示的应用服务器。
其中，图1b所示的ONT还可以与至少一个用户设备相连，该用户设备(user equipment，UE)可以称为终端(terminal)或者移动台(mobile station，MS)或者移动终端(mobile terminal，MT)等。具体的，该用户设备可以是手机(mobile phone)、平板电脑或带无线收发功能的电脑。用户设备还可以是虚拟现实(virtual reality，VR)终端、增强现实(augmented reality，AR)终端、工业控制中的无线终端、无人驾驶中的无线终端、远程医疗中的无线终端、智能电网中的无线终端、智慧城市(smart city)中的无线终端、智慧家庭(smart home)中的无线终端、车载终端等等，不予限制。
需要说明的是，本申请实施例的至少一个第一设备、至少一个第一边界设备、至少一个第一边界传送设备、至少一个第二边界传送设备、至少一个第二边界设备、以及至少一个第二设备都可以为一个或多个芯片，也可以为片上系统(system on chip，SOC)等。图1a仅为示例性附图，其包括的设备数量不受限制。此外，除图1a所示设备之外，该通信系统还可以包括其他设备。图1a中各个设备的名称、各个传送管道的命名不受限制，除图1a所示名称之外，各个设备、各个传送管道还可以命名为其他名称，如：第一网络域与第二网络域之间通过OTN进行通信时，传送管道还可以命名为OTN管道等，不予限制。
以图1b为例，OLT与路由器通过OTN管道进行业务数据传输时，需要根据预先配置的路由表和ARP表进行转发。现有应用OTN的通信系统中，可以应用静态配置的方式或路由洪泛学习的方式为OLT和路由器配置转发表和ARP表，但是，通信系统中OLT数量巨大，如果应用静态配置的方式，会导致整个通信系统中路由配置工作的复杂度高、工作量大且耗时。如果应用路由洪泛学习的方式，网络中OLT数量巨大，预先配置的OTN管道的数量较多，进行路由洪泛时对通信系统中各个OLT和各个路由器的CPU、内存等硬件资源的压力非常大，而OLT一般为小型设备，很难支持该种方式，且在数据传输过程中，当某一OTN管道并未被使用时，由于该OTN管道已经被配置，仍会占用网络资源，造成网络资源浪费。
为解决上述技术问题，本申请实施例提供一种路由信息的发布方法，该方法应用于位于传送网络的边界传送设备，该边界传送设备可以为第一边界传送设备，也可以为第二边界传送设备，以边界传送设备为第一边界传送设备为例，该方法包括：第一边界传送设备基于控制平面协议消息接收来自控制器的第一路由信息；该第一路由信息包括第二边界设备的地址和第二网络域的目的地址；第一边界传送设备将第一路由信息发送给第一边界设 备；以使第一边界设备根据第一路由信息生成用于指示第一网络域和第二网络域之间的转发关系的转发表。类似的，第二边界传送设备执行的操作与第一边界传送设备执行的操作一致，不予赘述。具体的，本申请实施例提供一种路由信息的发布方法可参照下述图3、图5和图6对应的实施例中所述。
这样，边界传送设备可以基于控制平面协议接收控制器发送的路由信息，并将接收到的路由信息发送给边界设备，由边界设备根据接收到的路由信息自动生成转发表。如此，可以通过现有控制平面协议在传送网络内发送路由信息，实现传送网络内部控制平面可达，无需占用传送网络的大量数据带宽资源发送路由信息，节省传送网络的数据平面的网络资源；且可以不用预先建立海量的传送管道进行路由洪泛，无需边界设备和边界传送设备应用路由洪泛学习方式通过传送管道生成转发表，降低边界设备和边界传送设备应用路由洪泛方式生成转发表的硬件资源处理压力。同时，可以由边界设备根据边界传送设备发送的路由信息自动生成转发表，无需通过静态配置方式将转发表配置给边界设备，降低路由配置工作的复杂度和工作量，缩短配置时间。
具体实现时，图1a中各设备，如：第一设备、第一边界设备、第一边界传送设备、控制器、第二边界传送设备、第二边界设备、第二设备均可以应用图2所示的组成结构，或者包括图2所示的部件。图2为本申请实施例提供的一种通信装置200的组成示意图，该通信装置200可以为第一设备或者第一设备中的芯片或者片上系统；也可以为第一边界设备或者第一边界设备中的芯片或者片上系统；也可以为第一边界传送设备或者第一边界传送设备中的芯片或者片上系统；也可以为控制器或者控制器中的芯片或者片上系统；也可以为第二边界传送设备或者第二边界传送设备中的芯片或者片上系统；也可以为第二边界设备或者第二边界设备中的芯片或者片上系统；也可以为第二设备或者第二设备中的芯片或者片上系统；如图2所示，该通信装置200包括处理器201，收发器202以及通信线路203。
进一步的，该通信装置200还可以包括存储器204。其中，处理器201，存储器204以及收发器202之间可以通过通信线路203连接。
其中，处理器201是中央处理器(central processing unit，CPU)、通用处理器网络处理器(network processor，NP)、数字信号处理器(digital signal processing，DSP)、微处理器、微控制器、可编程逻辑器件(programmable logic device，PLD)或它们的任意组合。处理器201还可以是其它具有处理功能的装置，例如电路、器件或软件模块，不予限制。
收发器202，用于与其他设备或其它通信网络进行通信。该其它通信网络可以为以太网，无线接入网(radio access network，RAN)，无线局域网(wireless local area networks，WLAN)等。收发器202可以是模块、电路、收发器或者任何能够实现通信的装置。
通信线路203，用于在通信装置200所包括的各部件之间传送信息。
存储器204，用于存储指令。其中，指令可以是计算机程序。
其中，存储器204可以是只读存储器(read-only memory，ROM)或可存储静态信息和/或指令的其他类型的静态存储设备，也可以是随机存取存储器(random access memory，RAM)或可存储信息和/或指令的其他类型的动态存储设备，还可以是电可擦可编程只读存储器(electrically erasable programmable read-only memory，EEPROM)、只读光盘 (compact disc read-only memory，CD-ROM)或其他光盘存储、光碟存储(包括压缩光碟、激光碟、光碟、数字通用光碟、蓝光光碟等)、磁盘存储介质或其他磁存储设备等，不予限制。
需要指出的是，存储器204可以独立于处理器201存在，也可以和处理器201集成在一起。存储器204可以用于存储指令或者程序代码或者一些数据等。存储器204可以位于通信装置200内，也可以位于通信装置200外，不予限制。处理器201，用于执行存储器204中存储的指令，以实现本申请下述实施例提供的路由信息的发布方法。
在一种示例中，处理器201可以包括一个或多个CPU，例如图2中的CPU0和CPU1。
作为一种可选的实现方式，通信装置200包括多个处理器，例如，除图2中的处理器201之外，还可以包括处理器207。
作为一种可选的实现方式，通信装置200还包括输出设备205和输入设备206。示例性地，输入设备206是键盘、鼠标、麦克风或操作杆等设备，输出设备205是显示屏、扬声器(speaker)等设备。
需要指出的是，通信装置200可以是台式机、便携式电脑、网络服务器、移动手机、平板电脑、无线终端、嵌入式设备、芯片系统或有图2中类似结构的设备。此外，图2中示出的组成结构并不构成对该通信装置的限定，除图2所示部件之外，该通信装置可以包括比图示更多或更少的部件，或者组合某些部件，或者不同的部件布置。
本申请实施例中，芯片系统可以由芯片构成，也可以包括芯片和其他分立器件。
此外，本申请的各实施例之间涉及的动作、术语等均可以相互参考，不予限制。本申请的实施例中各个设备之间交互的消息名称或消息中的参数名称等只是一个示例，具体实现中也可以应用其他的名称，不予限制。
下面结合图1a所示通信系统，以控制器将第二边界传送设备发送的第二边界设备的第一路由信息通过第一边界传送设备发送给第一边界设备为例，对本申请实施例提供的路由信息的发布方法进行描述。第二边界传送设备可以是图1a中任一第二边界传送设备，第二边界设备可以是图1a中与第二边界传送设备相连的第二边界设备，第一边界传送设备可以是图1a中的任一第一边界传送设备，第一边界设备可以是图1a中与第一边界传送设备相连的第一边界设备。下述实施例所述的控制器、第二边界传送设备、第二边界设备、第一边界传送设备和第一边界设备可以具备图2所示部件。
图3为本申请提供的一种路由信息的发布方法的流程图，如图3所示，该方法包括：
步骤301：第二边界设备生成第一路由信息，并将第一路由信息发送给第二边界传送设备。
其中，第一路由信息可以包括第二边界设备的地址和第二网络域的目的地址。可选的，第二边界设备的地址包括IP地址和MAC地址。第二网络域的目的地址为与第二边界设备相连的第二设备的地址。具体的，第二设备的地址包括IP地址。
需要说明的是，与第二边界设备相连的第二设备可以包括一个或者多个第二设备。当与第二边界设备相连的第二设备包括一个第二设备时，第二边界设备可以将该第二设备的地址作为第二网络域的目的地址包括在第一路由信息中。当与第二边界设备相连的第二设备包括多个第二设备时，第二边界设备可以将多个第二设备的地址作为第二网络域的目的地址包括在同一个第一路由信息中，或者，第二边界设备可以生成多个第一路由信息，将 至少一个第二设备的地址作为第二网络域的目的地址包括在一个第一路由信息中。
示例性的，第二边界设备可以将第一路由信息携带在扩展的路径计算单元协议(path computation element protocol，PCEP)报文中发送给第二边界传送设备。
该扩展的PCEP报文除可以包括第二边界设备的地址和第二网络域的目的地址之外，在其报文头部还可以包括其他信息，如图4a所示，还可以包括版本号字段、标志位字段、消息类型字段、消息长度字段、对象类型扩展字段、对象类型字段、保留字段、P字段、I字段和对象长度字段。
其中，消息类型字段和对象类型扩展字段使用新的类型值，用于标识该可扩展的PCEP报文中携带的是本申请所述的路由信息；报文头部中其余字段的描述可参照现有技术对PCEP报文头部的描述，不予赘述。
具体的，如图4a所示，上述携带有第一路由信息的扩展的PCEP报文中，版本号字段占用3个比特位，标志位字段占用5个比特位，消息类型字段占用8个比特位，消息长度字段占用16个比特位，对象类字段占用8个比特位，对象类型字段占用4个比特位，保留字段占用2个比特位，P字段占用1个比特位，I字段占用1个比特位，对象长度字段占用16个比特位，第二边界设备的地址占用80个比特位，其中，第二边界设备的地址包括占用32个比特位的IP地址和占用48个比特位的MAC地址，第二网络域的目的地址的长度是可变的。
示例性的，如图4b所示，第二网络域的目的地址除包括第二设备的IP地址外，还可以包括占用16个比特位的类型字段，占用16个比特位的长度字段，以及占用8个比特位的IP地址前缀字段。
需要说明的是，当第一路由信息中的第二网络域的目的地址包括一个第二设备的地址时，可以采用图4a所示的消息格式，当第一路由信息中的第二网络域的目的地址包括多个第二设备的地址时，可以采用图4c所示的消息格式，如图4c所示，第一路由信息可以包括第二网络域的目的地址1、第二网络域的目的地址2等多个目的地址。
具体的，第二边界设备可以根据下述方式生成第一路由信息：第二边界设备可以自动发现与自身相连的第二设备并获取第二设备的地址，根据第二设备的地址与自身的地址生成第一路由信息。
需要说明的是，第二边界设备自动发现第二设备的过程可参照现有技术，不予赘述。
进一步的，第二边界设备可以在网络规划初期，自动发现第二设备，生成第一路由信息并发送给第二边界传送设备。
步骤302、第二边界传送设备接收第一路由信息，并基于控制平面协议消息向控制器发送第一路由信息。
其中，控制平面协议可以为物理层(physical，PHY)的控制平面协议或者底层的控制平面协议，该控制平面协议可以支持第二边界传送设备通过物理层或底层向控制器发送第一路由信息。示例性的，该控制平面协议可以为，PCEP。
其中，控制平面协议消息可以为适用于在控制平面上传输的消息。控制平面协议可以为第二边界传送设备可以与控制器之间的协议。
具体的，第二边界传送设备可以通过网络层或数据链路层的控制协议，接收来自第二边界设备的第一路由信息，并基于物理层的控制平面协议消息向控制器发送第一路由信息。
需要说明的是，图1a所示的多个第二边界设备中的每一个均可以按照上述步骤301生成第一路由信息，并将第一路由信息发送给与自身相连的第二边界传送设备。图1a所示的多个第二边界传送设备中的每一个均可以按照上述步骤302将自身接收到的至少一个第二边界设备的第一路由信息发送给控制器。
步骤303、控制器接收第一路由信息，并基于控制平面协议消息将第一路由信息发送给第一边界传送设备。
其中，控制器可以为图1a所示的控制器。控制平面协议消息的相关描述可参照步骤302中所述，不予赘述。
进一步的，控制器可以接收来自传送网络中多个第二边界传送设备发送的第一路由信息；并将接收到的多个第一路由信息基于同一个控制平面协议消息发送给第一边界传送设备，以减少信令交互。
步骤304、第一边界传送设备接收第一路由信息，并将第一路由信息发送给第一边界设备。
其中，第一边界设备可以为与第一边界传送设备连接的一个或多个边界设备。
可选的，第一边界传送设备基于网络层或数据链路层的控制协议向第一边界设备发送第一路由信息。
步骤305、第一边界设备接收第一路由信息，根据第一路由信息生成转发表。
其中，该转发表可以用于指示第一网络域和第二网络域之间的转发关系。该转发表可以包括路由表和ARP表。
该路由表的表项可以包括目的地址、目的地址对应的下一跳、以及目的地址对应的出接口，ARP表的表项可以包括下一跳的IP地址、以及IP地址对应的MAC地址。
具体的，第一路由信息包括第二设备的IP地址、第二边界设备的IP地址和第二边界设备的MAC地址时，第一边界设备根据第一路由信息生成转发表可以包括：
将第二设备的IP地址作为目的地址，将第二设备的IP地址对应的第二边界设备的IP地址作为目的地址对应的下一跳，将第二边界设备对应的第一边界设备的出接口作为出接口生成路由表。将第二边界设备的IP地址作为下一跳的IP地址，将第二边界设备的IP地址对应的第二边界设备的MAC地址作为IP地址对应的MAC地址，生成ARP表。
基于图3所述的方法，以第一边界设备为m个，第二边界设备为n个为例，应用现有路由洪泛学习方式，需预先建立m*n条传送管道以实现路由洪泛，应用本申请实施例所述的方法，仅需建立第一边界设备经过第一边界传送设备连接到控制器的m条连接和第二边界设备经过第二边界传送设备连接到控制器的n条连接，本申请实施例的m+n条连接与现有路由洪泛学习方式的m*n条传送管道相比，可以实现控制平面可达，且本申请实施例基于控制平面的每一条连接仅占用K级带宽，与传送管道至少占用G级带宽相比，无需占用大量数据带宽资源，节省数据平面的网络资源，且不用预先建立海量的传送管道进行路由洪泛，可以降低第一边界设备和边界传送设备通过路由洪泛学习方式生成转发表时对硬件资源的处理压力，同时，第一边界设备与第二边界传送设备根据接收到的第一路由信息和第二路由信息自动生成转发表，可以无需静态配置，降低路由配置工作的复杂度和工作量，缩短配置时间。
上述步骤301-步骤305中，控制器将第二边界传送设备发送的第二边界设备的第一路 由信息通过第一边界传送设备发送给第一边界设备，与图3类似，参照图5，控制器可以将第一边界传送设备发送的第一边界设备的第二路由信息通过第二边界传送设备发送给第二边界设备。
图5为本申请提供的一种路由信息的发布方法的流程图，如图5所示，该方法包括：
步骤501：第一边界设备生成第二路由信息，并将第二路由信息发送给第一边界传送设备。
其中，第二路由信息可以包括第一边界设备的地址和第一网络域的目的地址。可选的，第一边界设备的地址包括IP地址和MAC地址。第一网络域的目的地址为与第一边界设备相连的第一设备的地址。具体的，第一设备的地址包括IP地址。
具体的，第二路由信息与第一路由信息类似，对第二路由信息的相关描述可参照上述步骤301中对第一路由信息的相关描述，不予赘述。
具体的，第一边界设备可以根据下述方式生成第二路由信息：第一边界设备自动发现与自身相连的第一设备并获取第一设备的地址，根据第一设备的地址与自身的地址生成第二路由信息。
需要说明的是，第一边界设备自动发现第一设备的过程可参照现有技术，不予赘述。
进一步的，第一边界设备可以在网络规划初期，自动发现第一设备，生成第二路由信息并发送给第一边界传送设备。
步骤502、第一边界传送设备接收第二路由信息，并基于控制平面协议消息向控制器发送第二路由信息。
具体的，该处理过程与上述步骤302的处理过程类似，对该处理过程的相关描述可参照上述步骤302的相关描述，不予赘述。
步骤503、控制器接收第二路由信息，并基于控制平面协议消息将第二路由信息发送给第二边界传送设备。
具体的，该处理过程与上述步骤303的处理过程类似，对该处理过程的相关描述可参照上述步骤303的相关描述，不予赘述。
步骤504、第二边界传送设备接收第二路由信息，并将第二路由信息发送给第二边界设备。
具体的，该处理过程与上述步骤304的处理过程类似，对该处理过程的相关描述可参照上述步骤304的相关描述，不予赘述。
步骤505、第二边界设备接收第二路由信息，根据第二路由信息生成转发表。
其中，该转发表可以用于指示第一网络域和第二网络域之间的转发关系。该转发表可以包括路由表和ARP表。
该路由表的表项可以包括目的地址、目的地址对应的下一跳、以及目的地址对应的出接口，ARP表的表项可以包括下一跳的IP地址、以及IP地址对应的MAC地址。
具体的，第二路由信息包括第一设备的IP地址、第一边界设备的IP地址和第一边界设备的MAC地址时，第二边界设备根据第二路由信息生成转发表可以包括：
将第一设备的IP地址作为目的地址，将第一设备的IP地址对应的第一边界设备的IP地址作为目的地址对应的下一跳，将第一边界设备对应的第二边界设备的出接口作为出接口生成路由表。将第一边界设备的IP地址作为下一跳的IP地址，将第一边界设备的IP 地址对应的第一边界设备的MAC地址作为IP地址对应的MAC地址，生成ARP表。
下面以第一网络域为用户侧网络域，传送网络为OTN，第二网络域为服务器侧网络域为例，对本申请实施例提供的路由信息的发布方式进行详细描述。
如图1b所示，用户侧网络域包括ONT和OLT，OTN包括控制器、接入OTN设备和核心OTN设备，服务器侧网络域包括路由器和应用服务器，用户侧网络域的目的地址为ONT的IP地址，服务器侧网络域的目的地址为应用服务器的IP地址。参照图6，以控制器将接入OTN设备发送的第二路由信息通过核心OTN设备发送给路由器为例，对本申请实施例提供的一种路由信息的发布方法进行描述。
图6为本申请实施例提供的一种路由信息的发布方式，如图6所示，该方法包括：
步骤601、OLT生成第二路由信息，并将第二路由信息发送给接入OTN设备。
其中，第二路由信息可以包括OLT的IP地址、OLT的MAC地址、以及与OLT相连的ONT的IP地址。
需要说明的是，与OLT相连的ONT可以包括一个或多个ONT。
当与OLT相连的ONT包括一个ONT时，OLT可以生成包括OLT的IP地址、OLT的MAC地址、以及ONT的IP地址的第二路由信息。以图1b为例，OLT2可以将OLT2的IP地址、OLT2的MAC地址以及ONT3的IP地址携带在第二路由信息中发送给接入OTN设备2。
当与OLT相连的ONT包括多个ONT时，OLT可以将多个ONT的IP地址包括在同一个第二路由信息中。以图1b为例，OLT1将OLT1的IP地址、OLT1的MAC地址、ONT1的IP地址以及ONT2的IP地址携带在第二路由信息中发送给接入OTN设备1。或者，OLT也可以生成多个第二路由信息，将至少一个ONT的IP地址包括在一个第二路由信息中。以图1b为例，OLT1可以将OLT1的IP地址、OLT1的MAC地址、ONT1的IP地址携带在第二路由信息1中发送给接入OTN设备1，将OLT1的IP地址、OLT1的MAC地址、ONT2的IP地址携带在第二路由信息2中发送给接入OTN设备1。
具体的，OLT可以将第二路由信息携带在扩展的PCEP报文中发送给接入OTN设备。如图7所示，以OLT1将OLT1的IP地址、OLT1的MAC地址、ONT1的IP地址携带在第二路由信息中发送给接入OTN设备1为例，扩展的PCEP报文可以包括：OLT1的IP地址、OLT1的MAC地址、ONT1的IP地址。
上述扩展的PCEP报文的报文头部还可以包括：版本号字段、标志位字段、消息类型字段、消息长度字段、对象类型扩展字段、对象类型字段、保留字段、P字段、I字段和对象长度字段。
示例性的，OLT与接入OTN设备之间可以建立PCEP会话，应用扩展的PCEP报文将第二路由信息发送给接入OTN设备。
可替换的，OLT与接入OTN设备之间建立BGP会话，通过BGP会话将第二路由信息发送给接入OTN设备。
步骤602、接入OTN设备接收第二路由信息，并基于控制平面协议消息将第二路由信息发送给控制器。
其中，控制平面协议消息可以是上述扩展的PCEP报文。
以图1b为例，接入OTN设备1可以将接收到的包括OLT1的IP地址、OLT1的MAC地址、ONT1的IP地址以及ONT2的IP地址的第二路由信息发送给控制器，接入OTN设备2 将接收到的包括OLT2的IP地址、OLT2的MAC地址以及ONT3的IP地址的第二路由信息发送给控制器。
步骤603、控制器接收第二路由信息，并基于控制平面协议消息将第二路由信息发送给核心OTN设备。
其中，控制平面协议消息可以是上述扩展的PCEP报文。
以图1b为例，控制器可以将接收到的包括OLT1的IP地址、OLT1的MAC地址、ONT1的IP地址以及ONT2的IP地址的第二路由信息发送给核心OTN设备1以及核心OTN设备2，将接收到的包括OLT2的IP地址、OLT2的MAC地址以及ONT3的IP地址的第二路由信息也发送给核心OTN设备1以及核心OTN设备2。
进一步的，控制器还可以将包括OLT1的IP地址、OLT1的MAC地址、ONT1的IP地址以及ONT2的IP地址的第二路由信息以及包括OLT2的IP地址、OLT2的MAC地址以及ONT3的IP地址的第二路由信息携带在同一个控制平面协议消息中发送给核心OTN设备1，以及将该控制平面协议消息发送给核心OTN设备2，以减少信令交互。
步骤604、核心OTN设备接收第二路由信息，并将第二路由信息发送给路由器。
其中，核心OTN设备可以基于网络层或数据链路层的控制协议向路由器发送第二路由信息，该网络层或链路层的控制协议可以为BGP协议或者ARP协议。
以图1b为例，核心OTN设备1可以将接收到的包括OLT1的IP地址、OLT1的MAC地址、ONT1的IP地址以及ONT2的IP地址的第二路由信息以及接收到的包括OLT2的IP地址、OLT2的MAC地址以及ONT3的IP地址的第二路由信息发送给路由器1。
核心OTN设备2可以将接收到的包括OLT1的IP地址、OLT1的MAC地址、ONT1的IP地址以及ONT2的IP地址的第二路由信息以及接收到的包括OLT2的IP地址、OLT2的MAC地址以及ONT3的IP地址的第二路由信息发送给路由器2。
步骤605、路由器接收第二路由信息，根据第二路由信息生成路由器的转发表。
其中，转发表可以包括路由表和ARP表。
以路由器1接收到包括OLT1的IP地址、OLT1的MAC地址、ONT1的IP地址以及ONT2的IP地址的第二路由信息以及接收到的包括OLT2的IP地址、OLT2的MAC地址以及ONT3的IP地址的第二路由信息为例，如图8所示，生成的路由表中，目的地址包括ONT1的IP地址、ONT2的IP地址和ONT3的IP地址；下一跳包括ONT1的IP地址对应的OLT1的IP地址、ONT2的IP地址对应的OLT1的IP地址、ONT3的IP地址对应的OLT2的IP地址；出接口包括OLT1对应的路由器的出接口、OLT2对应的路由器的出接口。生成的ARP表中，下一跳的IP地址包括OLT1的IP地址、OLT2的IP地址；下一跳的IP地址对应的MAC地址包括OLT1的MAC地址、OLT2的MAC地址。
示例性的，不同的下一跳可以对应不同的路由器的出接口，如OLT1可以对应路由器1的出接口1，OLT2可以对应路由器的出接口2。
在进行业务数据传输时，以图1b为例，当应用服务器1需要将业务数据发送至ONT1时，应用服务器1将ONT1的IP地址携带在业务数据中发送至与应用服务器1相连的路由器1，路由器1根据图8所示的路由表确定ONT1的IP地址对应的下一跳为OLT1的IP地址，对应的出接口为路由器的出接口1，根据图8所示的ARP表确定OLT1的IP地址对应的OLT1的MAC地址，将OLT1的MAC地址携带在业务数据中通过出接口1发送给核心OTN 设备1，核心OTN设备1根据OLT1的MAC地址将业务数据通过OTN管道发送至接入OTN设备1，接入OTN设备1根据OLT1的MAC地址将业务数据发送给OLT1，OLT1根据业务数据包括的ONT1的IP地址，将业务数据发送给ONT1。
上述步骤601-步骤605中，控制器将接入OTN设备发送的OLT的第二路由信息通过核心OTN设备发送给路由器。
与图6类似，控制器也可以将核心OTN设备发送的路由器的第一路由信息通过接入OTN设备发送给OLT，以使OLT根据第一路由信息生成转发表，该处理过程与图6所示的处理过程类似，OLT根据接入OTN发送的多个路由器的第一路由信息生成路由表和ARP表，该路由表的表项包括应用服务器的IP地址、应用服务器对应的路由器的IP地址、以及路由器对应的OLT的出接口；该ARP表包括路由器的IP地址以及路由器的IP地址对应的MAC地址。
以图1b为例，当ONT1需要将业务数据发送至应用服务器1时，ONT1将应用服务器1的IP地址携带在业务数据中发送至与ONT1相连的OLT1，OLT1根据预先生成的路由表确定应用服务器1对应的下一跳为路由器1的IP地址，对应的出接口为路由器1对应的OLT1的出接口；根据预先生成的ARP表确路由器1的IP地址对应的路由器1的MAC地址，将路由器1的MAC地址携带在业务数据中通过路由器1对应的OLT1的出接口发送给接入OTN设备1，接入OTN设备1根据路由器1的MAC地址将业务数据通过OTN管道发送至核心OTN设备1，核心OTN设备1根据路由器1的MAC地址将业务数据发送给路由器1，路由器1根据业务数据包括的应用服务器1的IP地址，将业务数据发送给应用服务器1。
上述主要从设备之间交互的角度对本申请实施例提供的方案进行了介绍。可以理解的是，各个设备为了实现上述功能，其包含了执行各个功能相应的硬件结构和/或软件模块。本领域技术人员应该很容易意识到，结合本文中所公开的实施例描述的各示例的算法步骤，本申请能够以硬件或硬件和计算机软件的结合形式来实现。某个功能究竟以硬件还是计算机软件驱动硬件的方式来执行，取决于技术方案的特定应用和设计约束条件。专业技术人员可以对每个特定的应用来使用不同方法来实现所描述的功能，但是这种实现不应认为超出本申请的范围。
本申请实施例可以根据上述方法示例对各个网元进行功能模块的划分，例如，可以对应各个功能划分各个功能模块，也可以将两个或两个以上的功能集成在一个处理模块中。上述集成的模块既可以应用硬件的形式实现，也可以应用软件功能模块的形式实现。需要说明的是，本申请实施例中对模块的划分是示意性的，仅仅为一种逻辑功能划分，实际实现时可以有另外的划分方式。
在应用对应各个功能划分各个功能模块的情况下，图9示出了一种通信装置，通信装置90可以为边界传送设备或者边界传送设备中的芯片或者片上系统。该通信装置90可以用于执行上述实施例中涉及的边界传送设备的功能。图9所示通信装置90包括：接收模块901、发送模块902。
接收模块901，用于基于控制平面协议消息接收来自控制器的包括第二边界设备的地址和第二网络域的目的地址的第一路由信息。
发送模块902，用于将第一路由信息发送给第一边界设备；该第一路由信息用于生成第一边界设备的用于指示第一网络域和第二网络域之间的转发关系的转发表。
其中，该通信装置100的具体实现方式可参考图3、图5和图6所述路由信息的发布方法中边界传送设备的行为功能。
在一种可能的设计中，接收模块901，还用于接收来自第一边界设备的包括第一边界设备的地址和第一网络域的目的地址的第二路由信息；发送模块902，还用于将第二路由信息发送给控制器。
在一种可能的设计中，地址包括IP地址和/或MAC地址。
在一种可能的设计中，转发表包括路由表和/或ARP表。
在一种可能的设计中，第一边界设备为用户侧网络设备，第二边界设备为服务器侧网络设备；或者第一边界设备为服务器侧网络设备，第二边界设备为用户侧网络设备。
在一种可能的设计中，发送模块902，还用于基于网络层或数据链路层的控制协议向第一边界设备发送第一路由信息。
作为又一种可实现方式，图9中的接收模块901、发送模块902可以由收发器代替，该收发器可以集成接收模块901、发送模块902的功能。进一步的，图9所示通信装置90还可以包括存储器。当接收模块901、发送模块902由收发器代替时，本申请实施例所涉及的通信装置90可以为图2所示通信装置。
在应用对应各个功能划分各个功能模块的情况下，图10示出了一种通信装置，通信装置100可以为控制器或者控制器中的芯片或者片上系统。该通信装置100可以用于执行上述实施例中涉及的控制器的功能。图10所示通信装置100包括：接收模块1001、发送模块1002。
接收模块1001，用于基于控制平面协议消息接收来自第二边界传送设备的包括第二边界设备的地址和第二网络域的目的地址的第一路由信息。
发送模块1002，用于将第一路由信息发送给第一边界传送设备；该第一路由信息用于生成第一边界设备的用于指示第一网络域和第二网络域之间的转发关系的转发表。
其中，该通信装置100的具体实现方式可参考图3、图5和图6所述路由信息的发布方法中控制器的行为功能。
在一种可能的设计中，接收模块1001，还用于基于控制平面协议消息接收来自第一边界传送设备的包括第一边界设备的地址和第一网络域的目的地址的第二路由信息；发送模块1002，还用于并将第二路由信息发送给第二边界传送设备；第二路由信息用于生成第二边界设备的用于指示第一网络域和第二网络域之间的转发关系的转发表。
在一种可能的设计中，接收模块1001，还用于接收来自传送网络中多个第二边界传送设备的第一路由信息；发送模块1002，还用于将接收到的多个第二边界传送设备的第一路由信息基于同一个控制平面协议消息发送给第一边界传送设备。
在一种可能的设计中，接收模块1001，还用于接收来自传送网络中多个第一边界传送设备的第二路由信息；发送模块1002，还用于将接收到的多个第一边界传送设备的第二路由信息基于同一个控制平面协议消息发送给第二边界传送设备。
在一种可能的设计中，第一边界传送设备为用户侧边界传送设备，第二边界传送设备为服务器侧边界传送设备；或者，第一边界传送设备为服务器侧边界传送设备，第二边界传送设备为用户侧边界传送设备。
在一种可能的设计中，发送模块1002，还用于基于控制平面协议消息向第一边界传送 设备发送第一路由信息；发送模块1002，还用于基于控制平面协议消息向第二边界传送设备发送第二路由信息。
本申请实施例还提供了一种计算机可读存储介质。上述方法实施例中的全部或者部分流程可以由计算机程序来指令相关的硬件完成，该程序可存储于上述计算机可读存储介质中，该程序在执行时，可包括如上述各方法实施例的流程。计算机可读存储介质可以是前述任一实施例的终端(包括数据发送端和/或数据接收端)的内部存储单元，例如终端的硬盘或内存。上述计算机可读存储介质也可以是上述终端的外部存储设备，例如上述终端上配备的插接式硬盘，智能存储卡(smart media card,SMC)，安全数字(secure digital,SD)卡，闪存卡(flash card)等。进一步地，上述计算机可读存储介质还可以既包括上述终端的内部存储单元也包括外部存储设备。上述计算机可读存储介质用于存储上述计算机程序以及上述终端所需的其他程序和数据。上述计算机可读存储介质还可以用于暂时地存储已经输出或者将要输出的数据。
需要说明的是，本申请的说明书、权利要求书及附图中的术语“第一”和“第二”等是用于区别不同对象，而不是用于描述特定顺序。此外，术语“包括”和“具有”以及它们任何变形，意图在于覆盖不排他的包含。例如包含了一系列步骤或单元的过程、方法、系统、产品或设备没有限定于已列出的步骤或单元，而是可选地还包括没有列出的步骤或单元，或可选地还包括对于这些过程、方法、产品或设备固有的其它步骤或单元。
应当理解，在本申请中，“至少一个(项)”是指一个或者多个，“多个”是指两个或两个以上，“至少两个(项)”是指两个或三个及三个以上，“和/或”，用于描述关联对象的关联关系，表示可以存在三种关系，例如，“A和/或B”可以表示：只存在A，只存在B以及同时存在A和B三种情况，其中A，B可以是单数或者复数。字符“/”一般表示前后关联对象是一种“或”的关系。“以下至少一项(个)”或其类似表达，是指这些项中的任意组合，包括单项(个)或复数项(个)的任意组合。例如，a，b或c中的至少一项(个)，可以表示：a，b，c，“a和b”，“a和c”，“b和c”，或“a和b和c”，其中a，b，c可以是单个，也可以是多个。
通过以上的实施方式的描述，所属领域的技术人员可以清楚地了解到，为描述的方便和简洁，仅以上述各功能模块的划分进行举例说明，实际应用中，可以根据需要而将上述功能分配由不同的功能模块完成，即将装置的内部结构划分成不同的功能模块，以完成以上描述的全部或者部分功能。
在本申请所提供的几个实施例中，应该理解到，所揭露的装置和方法，可以通过其它的方式实现。例如，以上所描述的装置实施例仅仅是示意性的，例如，所述模块或单元的划分，仅仅为一种逻辑功能划分，实际实现时可以有另外的划分方式，例如多个单元或组件可以结合或者可以集成到另一个装置，或一些特征可以忽略，或不执行。另一点，所显示或讨论的相互之间的耦合或直接耦合或通信连接可以是通过一些接口，装置或单元的间接耦合或通信连接，可以是电性，机械或其它的形式。
所述作为分离部件说明的单元可以是或者也可以不是物理上分开的，作为单元显示的部件可以是一个物理单元或多个物理单元，即可以位于一个地方，或者也可以分布到多个不同地方。可以根据实际的需要选择其中的部分或者全部单元来实现本实施例方案的目的。
另外，在本申请各个实施例中的各功能单元可以集成在一个处理单元中，也可以是各 个单元单独物理存在，也可以两个或两个以上单元集成在一个单元中。上述集成的单元既可以应用硬件的形式实现，也可以应用软件功能单元的形式实现。
所述集成的单元如果以软件功能单元的形式实现并作为独立的产品销售或使用时，可以存储在一个可读取存储介质中。基于这样的理解，本申请实施例的技术方案本质上或者说对现有技术做出贡献的部分或者该技术方案的全部或部分可以以软件产品的形式体现出来，该软件产品存储在一个存储介质中，包括若干指令用以使得一个设备(可以是单片机，芯片等)或处理器(processor)执行本申请各个实施例所述方法的全部或部分步骤。而前述的存储介质包括：U盘、移动硬盘、ROM、RAM、磁碟或者光盘等各种可以存储程序代码的介质。
以上所述，仅为本申请的具体实施方式，但本申请的保护范围并不局限于此，任何在本申请揭露的技术范围内的变化或替换，都应涵盖在本申请的保护范围之内。因此，本申请的保护范围应以权利要求的保护范围为准。

Claims (33)

  1. 一种路由信息的发布方法，其特征在于，所述方法应用于位于传送网络的边界传送设备，所述传送网络通过控制器进行集中控制，所述传送网络用于连接第一网络域和第二网络域，所述第一网络域包括第一边界设备，所述第二网络域包括第二边界设备，所述边界传送设备与所述第一边界设备相连，所述方法包括：
    所述边界传送设备基于控制平面协议消息接收来自所述控制器的第一路由信息；其中，所述第一路由信息包括所述第二边界设备的地址和所述第二网络域的目的地址；
    所述边界传送设备将所述第一路由信息发送给所述第一边界设备；其中，所述第一路由信息用于生成所述第一边界设备的转发表，所述转发表用于指示所述第一网络域和所述第二网络域之间的转发关系。
  2. 根据权利要求1所述的方法，其特征在于，所述方法还包括：
    所述边界传送设备接收来自所述第一边界设备的第二路由信息；其中，所述第二路由信息包括所述第一边界设备的地址和所述第一网络域的目的地址；
    所述边界传送设备将所述第二路由信息发送给所述控制器。
  3. 根据权利要求1或2所述的方法，其特征在于，所述第二边界设备的地址包括互联网协议IP地址和/或媒体访问控制MAC地址。
  4. 根据权利要求1-3任一项所述的方法，其特征在于，所述转发表包括路由表和/或地址解析协议ARP表。
  5. 根据权利要求1-4任一项所述的方法，其特征在于，
    所述第一边界设备为用户侧网络设备，所述第二边界设备为服务器侧网络设备；或者
    所述第一边界设备为服务器侧网络设备，所述第二边界设备为用户侧网络设备。
  6. 根据权利要求1-5任一项所述的方法，其特征在于，所述边界传送设备将所述第一路由信息发送给所述第一边界设备，包括：
    所述边界传送设备基于网络层或数据链路层的控制协议向所述第一边界设备发送所述第一路由信息。
  7. 一种路由信息的发布方法，其特征在于，所述方法应用于控制器，所述控制器对包括第一边界传送设备和第二边界传送设备的传送网络进行集中控制，所述传送网络用于连接第一网络域和第二网络域，所述第一网络域包括第一边界设备，所述第二网络域包括第二边界设备，所述第一边界传送设备与所述第一边界设备相连，所述第二边界传送设备与所述第二边界设备相连，所述方法包括：
    所述控制器基于控制平面协议消息接收来自所述第二边界传送设备的第一路由信息；其中，所述第一路由信息包括所述第二边界设备的地址和所述第二网络域的目的地址；
    所述控制器将所述第一路由信息发送给所述第一边界传送设备；其中，所述第一路由信息用于生成所述第一边界设备的转发表，所述转发表用于指示所述第一网络域和所述第二网络域之间的转发关系。
  8. 根据权利要求7所述的方法，其特征在于，所述方法还包括：
    所述控制器基于控制平面协议消息接收来自所述第一边界传送设备的第二路由信息；其中，所述第二路由信息包括所述第一边界设备的地址和所述第一网络域的目的地址；
    所述控制器将所述第二路由信息发送给所述第二边界传送设备；其中，所述第二路由 信息用于生成所述第二边界设备的转发表，所述转发表用于指示所述第一网络域和所述第二网络域之间的转发关系。
  9. 根据权利要求7或8所述的方法，其特征在于，所述方法还包括：
    所述控制器接收来自所述传送网络中多个第二边界传送设备的第一路由信息；
    所述控制器将接收到的所述多个第二边界传送设备的第一路由信息基于同一个控制平面协议消息发送给所述第一边界传送设备。
  10. 根据权利要求8或9所述的方法，其特征在于，所述方法还包括：
    所述控制器接收来自所述传送网络中多个第一边界传送设备的第二路由信息；
    所述控制器将接收到的所述多个第一边界传送设备的第二路由信息基于同一个控制平面协议消息发送给所述第二边界传送设备。
  11. 根据权利要求7-10任一项所述的方法，其特征在于，
    所述第一边界传送设备为用户侧边界传送设备，所述第二边界传送设备为服务器侧边界传送设备；或者
    所述第一边界传送设备为服务器侧边界传送设备，所述第二边界传送设备为用户侧边界传送设备。
  12. 根据权利要求7-11任一项所述的方法，其特征在于，所述控制器将所述第一路由信息发送给所述第一边界传送设备，包括：
    所述控制器基于控制平面协议消息向所述第一边界传送设备发送所述第一路由信息。
  13. 根据权利要求8-12任一项所述的方法，其特征在于，所述控制器将第二路由信息发送给所述第二边界传送设备，包括：
    所述控制器基于控制平面协议消息向所述第二边界传送设备发送所述第二路由信息。
  14. 一种通信装置，其特征在于，所述通信装置位于传送网络，所述传送网络通过控制器进行集中控制，所述传送网络用于连接第一网络域和第二网络域，所述第一网络域包括第一边界设备，所述第二网络域包括第二边界设备，所述通信装置与所述第一边界设备相连，所述装置包括：
    接收模块，用于基于控制平面协议消息接收来自所述控制器的第一路由信息；其中，所述第一路由信息包括所述第二边界设备的地址和所述第二网络域的目的地址；
    发送模块，用于将所述第一路由信息发送给所述第一边界设备；其中，所述第一路由信息用于生成所述第一边界设备的转发表，所述转发表用于指示所述第一网络域和所述第二网络域之间的转发关系。
  15. 根据权利要求14所述的装置，其特征在于，
    所述接收模块，还用于接收来自所述第一边界设备的第二路由信息；其中，所述第二路由信息包括所述第一边界设备的地址和所述第一网络域的目的地址；
    所述发送模块，还用于将所述第二路由信息发送给所述控制器。
  16. 根据权利要求14或15所述的装置，其特征在于，所述第二边界设备的地址包括互联网协议IP地址和/或媒体访问控制MAC地址。
  17. 根据权利要求14-16任一项所述的装置，其特征在于，所述转发表包括路由表和/或地址解析协议ARP表。
  18. 根据权利要求14-17任一项所述的装置，其特征在于，
    所述第一边界设备为用户侧网络设备，所述第二边界设备为服务器侧网络设备；或者
    所述第一边界设备为服务器侧网络设备，所述第二边界设备为用户侧网络设备。
  19. 根据权利要求14-18任一项所述的装置，其特征在于，
    所述发送模块，还用于基于网络层或数据链路层的控制协议向所述第一边界设备发送所述第一路由信息。
  20. 一种通信装置，其特征在于，所述通信装置对包括第一边界传送设备和第二边界传送设备的传送网络进行集中控制，所述传送网络用于连接第一网络域和第二网络域，所述第一网络域包括第一边界设备，所述第二网络域包括第二边界设备，所述第一边界传送设备与所述第一边界设备相连，所述第二边界传送设备与所述第二边界设备相连，所述装置包括：
    接收模块，用于基于控制平面协议消息接收来自所述第二边界传送设备的第一路由信息；其中，所述第一路由信息包括所述第二边界设备的地址和所述第二网络域的目的地址；
    发送模块，用于将所述第一路由信息发送给所述第一边界传送设备；其中，所述第一路由信息用于生成所述第一边界设备的转发表，所述转发表用于指示所述第一网络域和所述第二网络域之间的转发关系。
  21. 根据权利要求20所述的装置，其特征在于，
    所述接收模块，还用于基于控制平面协议消息接收来自所述第一边界传送设备的第二路由信息；其中，所述第二路由信息包括所述第一边界设备的地址和所述第一网络域的目的地址；
    所述发送模块，还用于将所述第二路由信息发送给所述第二边界传送设备；其中，所述第二路由信息用于生成所述第二边界设备的转发表，所述转发表用于指示所述第一网络域和所述第二网络域之间的转发关系。
  22. 根据权利要求20或21所述的装置，其特征在于，
    所述接收模块，还用于接收来自所述传送网络中多个第二边界传送设备的第一路由信息；
    所述发送模块，还用于将接收到的所述多个第二边界传送设备的第一路由信息基于同一个控制平面协议消息发送给所述第一边界传送设备。
  23. 根据权利要求21或22所述的装置，其特征在于，
    所述接收模块，还用于接收来自所述传送网络中多个第一边界传送设备的第二路由信息；
    所述发送模块，还用于将接收到的所述多个第一边界传送设备的第二路由信息基于同一个控制平面协议消息发送给所述第二边界传送设备。
  24. 根据权利要求20-23任一项所述的装置，其特征在于，
    所述第一边界传送设备为用户侧边界传送设备，所述第二边界传送设备为服务器侧边界传送设备；或者
    所述第一边界传送设备为服务器侧边界传送设备，所述第二边界传送设备为用户侧边界传送设备。
  25. 根据权利要求20-24任一项所述的装置，其特征在于，所述发送模块，还用于基于控制平面协议消息向所述第一边界传送设备发送所述第一路由信息。
  26. 根据权利要求21-25任一项所述的装置，其特征在于，所述发送模块，还用于基于控制平面协议消息向所述第二边界传送设备发送第二路由信息。
  27. 一种通信装置，其特征在于，所述通信装置包括一个或多个处理器、收发器；所述一个或多个处理器、所述收发器支持所述通信装置执行如权利要求1-6任一项所述的路由信息的发布方法。
  28. 一种通信装置，其特征在于，所述通信装置包括一个或多个处理器、收发器；所述一个或多个处理器、所述收发器支持所述通信装置执行如权利要求7-13任一项所述的路由信息的发布方法。
  29. 一种计算机可读存储介质，其特征在于，计算机可读存储介质存储有计算机指令或程序，当计算机指令或程序在计算机上运行时，使得所述计算机执行如权利要求1-6任一项所述的路由信息的发布方法。
  30. 一种计算机可读存储介质，其特征在于，计算机可读存储介质存储有计算机指令或程序，当计算机指令或程序在计算机上运行时，使得所述计算机执行如权利要求7-13任一项所述的路由信息的发布方法。
  31. 一种通信系统，其特征在于，所述通信系统包括第一网络域、传送网络和第二网络域，所述传送网络通过控制器进行集中控制，所述传送网络用于连接所述第一网络域和所述第二网络域，所述传送网络包括第一边界传送设备和第二边界传送设备，所述第一网络域包括第一边界设备，所述第二网络域包括第二边界设备，所述第一边界传送设备与所述第一边界设备相连，所述第二边界传送设备与所述第二边界设备相连；
    所述控制器，用于基于控制平面协议消息接收来自所述第二边界传送设备的第一路由信息；其中，所述第一路由信息包括所述第二边界设备的地址和所述第二网络域的目的地址；所述控制器将所述第一路由信息发送给所述第一边界传送设备；
    所述第一边界传送设备，用于基于所述控制平面协议消息接收来自所述控制器的第一路由信息；所述第一边界传送设备将所述第一路由信息发送给所述第一边界设备；其中，所述第一路由信息用于生成所述第一边界设备的转发表，所述转发表用于指示所述第一网络域和所述第二网络域之间的转发关系。
  32. 根据权利要求31所述的通信系统，其特征在于，所述控制器还用于基于控制平面协议消息接收来自所述第一边界传送设备的第二路由信息；其中，所述第二路由信息包括所述第一边界设备的地址和所述第一网络域的目的地址；
    所述控制器还用于将所述第二路由信息发送给所述第二边界传送设备；其中，所述第二路由信息用于生成所述第二边界设备的转发表，所述转发表用于指示所述第一网络域和所述第二网络域之间的转发关系。
  33. 根据权利要求31或32所述的通信系统，其特征在于，所述控制器还用于接收来自所述传送网络中多个第二边界传送设备的第一路由信息；
    所述控制器还用于将接收到的所述多个第二边界传送设备的第一路由信息基于同一个控制平面协议消息发送给所述第一边界传送设备。
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