(Optional) Setting the Cluster ID of a Route Reflector
When there are multiple route reflectors in a cluster, you need to configure the same cluster ID for all the route reflectors in this cluster to avoid routing loops.
Context
To enhance network reliability and avoid single points of failure, more than one route reflector can be configured in a cluster. In this case, you need to set the same cluster ID for all the route reflectors in the same cluster. This can reduce the number of routes to be received by each route reflector and save the memory.
To ensure that a client can learn the routes reflected by a route reflector, the cluster ID of the route reflector must be different from the router ID of the client. If they are the same, the client discards the received routes.
Procedure
- Run system-view
The system view is displayed.
- Run bgp as-number
The BGP view is displayed.
- Run ipv4-family unicast
The IPv4 unicast address family view is displayed.
- Run reflector cluster-id { cluster-id-value | cluster-id-ipv4 }
The cluster ID of a route reflector is set.
When there are multiple route reflectors in a cluster, you need to run the command to configure the same cluster-id for all the route reflectors in this cluster.
The reflector cluster-id command can be configured on only route reflectors.
- Run commit
The configuration is committed.