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假装网络工程师24——BGP路由反射器与联邦-兔样兔森破

 3 years ago
source link: https://blog.51cto.com/arkling/2552556
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neoserver,ios ssh client
一、背景介绍bgp协议根据工作的位置又可分为ibgp与ebgp,不同的as之间通过as_path来进行防环,但是在AS内部,as_path值为空,这样就有环路的隐患,为了消除该隐还,bgp要求as之间采用水平分割的方式进行防环,这样就要求启用bgp的路由器两两之间建立对等体关系。如下图,R2与R4之间如果不建立对等体关系,R1与R5之间无法相互学习到对方路由,尽管R2与R4都将路由发送给了R3,R

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