Hi all. I'm learning BGP for my CCNP BSCI exam, and have been trying to setup a test lab with 3 routers in a full mesh. I've got each router speaking BGP to each other and advertising a local subnet to each other (the subnet is setup on a loopback interface instead of a physical interface). If I do a "show ip bgp", I can see two paths to each subnet, and a "show ip route" tells me the same thing. The problem is when I take down the link from router A to C, the traffic from router A cannot pass through router B to the loopback interface on router C. I've looked and looked, and it's probably simple, but I don't understand what's preventing ping traffic from passing through the alternate routes. If you help out and possibly give a few suggestions, I'd really appreciate it! Thanks.
- posted
17 years ago