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BGP ring protection mechanisms

Latest reply: Dec 18, 2018 09:50:29 2250 1 9 0

Hi there, everyone!


This post is about BGP ring protection mechanisms. Please see more details as you read below.


Loop protection for BGP protocl


BACKGROUND


Any routing protocol needs to solve the loop problem first. OSPFISIS uses the SPF algorithm to solve the problem. The EIGRP algorithm is novel and is a diffusion algorithm. Therefore, BGP uses many small methods in the design, design diversified control attributes in energy refinement.


TYPES OF BGP RING PROTECTION MECHANISMS


There are two BGP ring protection mechanisms:


1. The first is the internal ring protection of the AS. IBGP split horizon is implemented. The basic idea of IBGP split horizon is not to transmit the routes learned from IBGP peers to other IBGP peers.


2. The second is the ring protection between ASs. It is implemented through the AS-PATH attribute. The basic idea is as follows: if the AS_PATH of a route received by a BGP router from its external peer contains its own AS number, the router knows that a loop occurs and discards the route.


This would be the BGP ring protection mechanisms.

  • x
  • convention:

yiyi0519
Created Dec 18, 2018 09:50:29 Helpful(0) Helpful(0)

If the routes of two identical ASs traverse another AS, they need to communicate with each other. How should they be configured?
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  • x
  • convention:

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