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Re: Global Crossing Contact / BGP and SONET interaction question
* [email protected] (Randy Epstein) [Wed 26 Jul 2006, 07:44 CEST]:
Recently my BGP session has started flapping on the GX circuit... It looks something like this:I don't have an answer to the root cause of your problem, and I'm not looking for a discussion on route dampening (there are enough debates on this issue to make your head spin), but may I suggest you raise your hold timers to prevent your BGP sessions from going down on short disturbances as these?
Wrong error condition - hold timer isn't triggered when the interface for a directly connected neighbor goes down.
You'll want Global Crossing to configure a hold-timer on their Juniper or a carrier-delay on their Cisco router. Or configure "no bgp fast-external-fallover" but that has more side effects.