A method and network equipment for establishing neighbor relationship

Abstract

The embodiment of the present invention discloses a method for establishing a neighbor relationship, comprising: a network device discovers more than one neighbor, determines the order of establishing the neighbor relationship according to a priority policy, and establishes the neighbor relationship in sequence according to the order in which the neighbor relationship is established. The embodiment of the present invention also provides a corresponding network device. In the embodiment of the present invention, the order of establishing the neighbor relationship is determined according to the priority policy, so that the process of establishing the neighbor relationship is orderly and controllable, so that the stability and reliability of the network operation can be improved.

Description

technical field [0001] The present invention relates to the field of communication technologies, in particular to a method and network device for establishing a neighbor relationship. Background technique [0002] In the current network, different types of networks run different network protocols, and different network protocols have their own mechanisms for discovering and establishing neighbors, so that the order of establishing neighbors within each protocol and between protocols is random and uncontrollable. [0003] Please refer to figure 1 The network shown includes: a router (Router, RT) RT-ospf in an OSPF network running the Open Shortest Path First (OSPF) protocol, and a BGP network running the Border Gateway Protocol (BGP) The router RT-bgp in the network, and the autonomous system border router (Autonomous System Boundary Router, ASBR) located between the OSPF network and the BGP network include ASBR1 and ASBR2. To reduce the number of internal and external rout...

AI Technical Summary

Problems solved by technology

When ASBR3 is powered off, the traffic flowing to ASBR5 in the ISIS domain will be tangentially switched to ASBR4; when ASBR3 restarts and recovers, because the ISIS network converges faster, ISIS-1 and ISIS-2 will determine ASBR3 as a pseudo node before ASBR3 and send the traffic back to ASBR3. Switch to ASBR3; but at this time, ASBR3 has not identified itself as a pseudo node, nor has it learned the route of ASBR5, and the BGP neighbor relationship between ASBR3 and ASBR5 has not been established, which will cause traffic loss

[0005] In short, because the order of establishing neighbors within each protocol and between protocols is random and uncontrollable, in some scenarios, the network operation will be unstable, resulting in traffic loss; and key services cannot be identified, and key services cannot be quickly restored or established.

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