Hi Faisal, > You might have to deploy some other means of (script ?) to bring your BGP > session down from the 'broken' Service Provider. > > To the best of my knowledge, BGP does not have any mechanism to determine > broken connectivity upstream past the router you are BGP session is up with.
Well, technically there's BFD that might do the trick. But of course it won't be available; it's not usually, so specially with Cogent... :) But maybe its link was just overloaded in fact. -- Olivier