One of my providers (and eBGP neighbor) recently had a hardware failure which caused the port that connects our two routers to go down. My router did detect the link failure and BGP pretty much immediately transitioned to an Idle state. my side is a Juniper MX80 running 11.4, their side I believe is a Cisco 6509.
what surprised me is that it looks like routes toward that provider were not immediately removed from my routing table. Instead i see evidence of blackholing for almost 3 minutes. Is this normal behavior? is the behavior configurable? I thought it might be related to the BGP holdtime, but that appears to be set for 30 seconds. I see that cisco has a feature called 'fast-external-fallover' that bypasses the hold-down timer. Is there an equivalent in JunOS? what is the Juniper best practice to handle link failure between eBGP neighbors? thanks! -andy _______________________________________________ juniper-nsp mailing list juniper-nsp@puck.nether.net https://puck.nether.net/mailman/listinfo/juniper-nsp