Re: seeing prefixes learned via AS100-400 and also locally

The reason is that BB3 is originating those prefixes via an IGP to its
neighbors (show ip proto). But he also learns his own prefixes via BGP
from 204.12.1.4.

Since the (E)BGP routes have a higher AD (20) than the directly
connected routes (0), they are marked with "r" to indicate a RIB failure.

I guess you are advertising those IGP learned routes via redistribution
or the network command on one of your BGP routers (R1 - R6, SW1 - SW4)
in the topology.

Best regards,

Jochen

Blogs and organic groups at http://www.ccie.net
Received on Fri Dec 30 2011 - 17:35:55 ART