Background on Route Reflector – RR: Route Reflector is created to offer an alternative way to a fully meshed IBGP (Internal Border Gateway Protocol) speakers while preventing loops. Configuring BGP route-reflector is not as intimidating as it sounds. In fact it’s very simple.
In this topology, R2 will be the route-reflector for R3 and R4.
R2:
router bgp 65501
no synchronization
bgp log-neighbor-changes
bgp router-id 2.2.2.2
network 10.0.0.4 mask 255.255.255.252
network 10.0.0.8 mask 255.255.255.252
neighbor 10.0.0.6 remote-as 65501
neighbor 10.0.0.6 route-reflector-client
neighbor 10.0.0.10 remote-as 65501
neighbor 10.0.0.10 route-reflector-client
no auto-summary
R3:
router bgp 65501
no synchronization
bgp router-id 2.2.2.2
bgp log-neighbor-changes
network 10.0.0.4 mask 255.255.255.252
network 10.0.0.12 mask 255.255.255.252
neighbor 10.0.0.5 remote-as 65501
no auto-summary
R4:
router bgp 65501
no synchronization
bgp router-id 4.4.4.4
bgp log-neighbor-changes
network 10.0.0.8 mask 255.255.255.252
network 10.0.0.12 mask 255.255.255.252
neighbor 10.0.0.9 remote-as 65501
no auto-summary
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