If it is a outage and you are running BGP you will need to wait for your router to converge. In worst case you will be dragged into the routing problems. However, I agree with Randy that 90% of outages are due to local-tail problems.
I agree that two links to two operators are more reliable, but the real questions are if they are enough MORE reliable to justify the extra routes, and if so how do we implement this? And this should be a general solution all the way down to the residential users...
OK. I went backstreams up the thread. Sure, since we're talking about "all the way down to the residential users..."
I am not conviced that having multiple upstreams for entrprises, SOHO, residentials or even small ISPs are worth it.
OK mh
- kurtis -