Configuring a BGP4+ Route Reflector

By configuring a BGP4+ route reflector, you can solve the problem of establishing fully meshed connections between multiple IBGP peers.

Context

To ensure the connectivity between IBGP peers inside an AS, you need to establish full-meshed IBGP peers. When there are many IBGP peers, establishing a full-meshed network costs a lot. The route reflector or the confederation can be used to solve this problem.

Procedure

Access the system view.
system-view
Access the BGP view.
bgp { as-number-plain | as-number-dot }
Access the BGP IPv6 unicast address family view.
ipv6-family unicast
Configure an RR and its client.
peer { ipv4-address | ipv6-address | group-name } reflect-client
(Optional) Set a cluster ID for the RR.
reflector cluster-id cluster-id

By default, each RR uses its router ID as the cluster ID.
(Optional) Disable route reflection between clients.
undo reflect between-clients

By default, route reflection is allowed between clients.
(Optional) Prohibit BGP from adding preferred routes to IP routing tables.
routing-table rib-only [ route-policy route-policy-name ]

By default, BGP adds preferred routes to IP routing tables.