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bgp client-to-client-reflection
Specifies whether this BGP entity reflects routes received from a client to another client.
Syntax: [no] bgp client-to-client-reflection
Description: To reduce the internal mesh of very large autonomous systems, BGP enables you to define route reflector clusters. A cluster consists of:
- One (or few) routers configured as route reflectors. Route reflectors pass routing information learned from client peers to other client peers.
- Many routers configured as clients. Clients pass their routing information to a router configured as the route reflector.
You can configure internal BGP peers as route reflectors responsible for passing learned IBGP routes to IBGP neighbors. Internal peers are divided into two groups: client peers and non-client peers. The route reflector and client peers form a cluster and are not required to be fully meshed.
NOTE If client-to-client-reflection is enabled, the clients of a route reflector can not be members of a peer group.
If a BGP entity is configured as a route reflector, and client-to-client-reflection has been disabled, the bgp client-to-client-reflection command re-enables route reflection.
Use the no bgp client-to-client-reflection command to disable client-to-client-reflection.
Factory Default: If a route reflector is configured, routes from a client are reflected to other clients.
Command Mode: Router configuration.
Example: In the following example, the no bgp client-to-client-reflection command disables route reflection between two neighbors that are fully meshed (and therefore do no require route reflection):
router(config)#router bgp 1092
router(config-router)#neighbor 205.97.56.15 remote-as 1092
router(config-router)#neighbor 205.97.56.15 route-reflector-client
router(config-router)#neighbor 205.97.56.16 remote-as 1092
router(config-router)#neighbor 205.97.56.16 route-reflector-client
router(config-router)#no bgp client-to-client-reflection
Related Commands: bgp cluster-id
neighbor route-reflector-client
show ip bgp neighbors
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Source
File Name: BGP_Nd.fm
HTML File Name: BGP_Nd4.html
Last Updated: 05/10/04 at 16:36:55