and what if your BFD packets would be running on the first link of your 3-link portchannel, but your OSPF packets on the second link (by coincidence)...doesn't make sense , see.......
2011/11/3 Geert Nijs <[email protected]> > 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/
