We have a t1 and a t3 for internet connectivity. Both connectons come into the same router. We are using BGP on the router. Rather than tinker with bgp parameters to try and make the t3 used as a first priority, should I somehow just put the t1 interface in a backup mode. I am interested in hearing opinions on how you guys would handle this. I am using weight commands to make the t3 the preference for outbound traffic. I am going to do some work with set as-path prepend statements this weekend to try to manipulate inbound traffic to use the t3. I am just now starting to think that maybe I just want to make the t1 used only if the t3 is completely down.
any ideas or know hows on this one?