Method and nodes for discovering neighbor

Abstract

The embodiment of the invention relates to a method and nodes for discovering a neighbor. The method comprises the following steps that: a maintenance association end node MEP sends a first request message to a remote maintenance association end node RMEP, wherein the first request message carries the identifying information of the MEP; and the RMEP receives the first request message and saves identifying information of the MEP in a database. Thus the RMEP in a MD network can acquire the information of the MEP, and the RMEP can discover and identify the MEP dynamically so as to prevent the RMEP from configuring the information of the MEP artificially and greatly reduce the work load.

Description

technical field [0001] The invention relates to the communication field, in particular to a method and a node for dynamically discovering neighbors. Background technique [0002] The Ethernet fault detection (CC: Continuity Check) message of the prior art is sent from each maintenance alliance interruption node (MEP: Maintenance association End Point) to all remote maintenance alliance interruption nodes (RMEP: Maintenance Association) in the maintenance alliance (MA: Maintenance Association). RemoteMaintenance association End Point, that is, other MEPs) periodically send multicast. If a CC message corresponding to an RMEP is not received within the specified period, it is considered that there is a failure somewhere inside the MA. The initiator MEP needs to save the identification information such as the remote maintenance alliance interruption node identifier (RMEP ID: RMEP ID: RMote Maintenance as association End Point Identifier) ​​of the remote RMEP in the local databas...

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Problems solved by technology

[0004] The inventor finds in practice: the existing Ethernet (ETHERNET) is a broadcast network, and every two devices in the same broadcast domain are all intercommunicative; During CFM management, in addition to configuring the maintenance domain (MD: Maintenance Domain), MA, and MEP ID for the local MEP, the following configurations also need to be completed: 1. On the local MEP, configure the RMEP ID information in the current MA ; 2. At the same time, add the MEP maintenance association end point identifier (MEP ID: Maintenance association End Point Identifier) ​​information on the router where the RMEP is located. The above configuration needs to be done manually, and the workload is very large

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