Hello everyone. Looking for a little help with some BGP. Router A is connected to AT&T, Router B is connected to Cogent. I have a single /24 block. Right now roughtly the majority of the west coast has decided it wants to use my Cogent link as the primary connection. The majority of the east coast has decided to use my AT&T link. What I'd like to do is advertise my /24 to AT&T under most normal circumastances. When I lose that BGP peer, or can not advertise out my AT&T link for whatever reason, have my Cogent link take over and advertise out from there. I picked up on this old thread from 2007 (https://supportforums.cisco.com/thread/195217) which seems to be close but I feel like I'm missing something.