Hi Rene and staff,
i lab eBGP and i BGP with the following topology
R1 advertise 172.16.0.0/16 (loopback 0) to PE-3 via eBGP
In AS 65000 RR4 is route reflector
PE-3 advertise 10.0.1.0/24 to RR4 (it is an internal route learned by PE-3; i create it by a static route to null0)
As route-reflector RR4 advertise 10.0.1.0/24 to PE-5 (PE-3 and PE-5 are route-reflector-client)
My question is about 172.16.0.0/16
In RR4 this prefix learned via eBGP between R1 and PE-3 is valid but not best: so RR4 does not advertise this prefix to PE-5
The question is: does PE-5 should have to know about prefix 172.16/16 in some designs ?
The answer is likely yes, is not it ?
So, if PE-5 has to know about this prefix what best configuration could solve this issue ?