Missing Routes - Example I
R1 and R4 have the same Router-ID
R1# show ip bgp summary | include identifier.
BGP router identifier 100.1.1.1, local AS number 100.
R4# show ip bgp summary | include identifier.
BGP router identifier 100.1.1.1, local AS number 100.
Can be a problem in multicast networks; For RP (Rendezvous Point) purposes the same address may be assigned tomultiple routers
Specify a unique Router-ID
R1#show run | include router-id
bgp router-id 1.1.1.1
R4# show run | include router-id
bgp router-id 4.4.4.4