Which configuration can be used to reduce the number of BGP sessions in an IBGP network?

Which configuration can be used to reduce the number of BGP sessions in an IBGP network?
A . Neighbor range
B . Route reflector
C . Next-hop-self
D . Neighbor group

Answer: B

Explanation:

Route reflectors help to reduce the number of IBGP sessions inside an AS. A route reflector forwards the routers learned from one peer to the other peers. If you configure route reflectors, you dont’ need to create a full mesh IBGP network. All clients in a cluster only talck to route reflector to get sync routing updates. Route reflectors pass the routing updates to other route reflectors and border routers within the AS.

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