As far as i know, BFD is not supported on portchannels. Some IOS however, let you configure it, but it doesn't work. And it is quiet logical: think about it: by default BFD is running on one link in your portchannel. What if this link fails ? do you want to bring down OSPF/BGP ? no of course not, however, bfd would react so fast it would bring down the routing session even before it is able to fail over to another link.
The same for the other suggestion: run BFD on each link (resource waiste and hog). Run BFD on each link, but only bring down the routing session when the last BFD on the portchannel goes down ? ok would work, but how would you send traffic on each link: BFD works on IP level, not L2 or even L1 level, you can't put an IP on each link in a portchannel, so no, forget BFD and portchannels :-) regards, Geert 2011/10/25 zaid <[email protected]> > my ios 12.2 SRB doesn't support BFD on port channel , I look for BFD per > link ? which ios dose support ? is there another way to detect port channel > failure > > > Zaid > _______________________________________________ > cisco-nsp mailing list [email protected] > https://puck.nether.net/mailman/listinfo/cisco-nsp > archive at http://puck.nether.net/pipermail/cisco-nsp/ > _______________________________________________ cisco-nsp mailing list [email protected] https://puck.nether.net/mailman/listinfo/cisco-nsp archive at http://puck.nether.net/pipermail/cisco-nsp/
