An administrator wants to scale the IBGP sessions and optimize the routing table in an...

In anIBGP (Internal BGP) network, all routers must befully meshed, meaning every router must establish a BGP session with every other router in the sameautonomous system (AS). Thisdoes not scale wellin large networks due to the exponential increase in BGP sessions.

Tooptimize and scale IBGP,Route Reflectors (RRs)are used. ARoute Reflector (RR)reduces the number ofIBGP peer connectionsby allowing acentralized router (RR)to redistribute IBGP routes to other IBGP peers (calledclients). This eliminates the need for afull mesh, significantlyreducing BGP session overhead.

By configuring theroute-reflector-clientsetting on IBGP peers, an administrator can:

●Scale IBGP sessionsby reducing the number of direct BGP peer connections.

●Optimize the routing tableby ensuring routes are efficiently propagated within the IBGP network.

●Eliminate the need for full mesh topology, making IBGP more manageable.