(Apologies for top-posting - dumb mail-client) Correct, I intend using one of bgp, isis or other appropriate IGP with BFD as cisco recommends in their documentation.
Are you sure there is no mib for BFD?, I see, on ciscos ftp mib repository, a bfd-ietf-mib.txt that reads " ... Mib for bidirectional forwarding protocol... "? Alternatively, if I used this with isis, for example, would I be able to have isis generate traps, based on detection performed by the BFD mechanism? Unfortunately, IP-SLA has been overruled by the powers that be on this particular network :-) Many Thanks, Traiano ------Original Message------ From: Oliver Boehmer (oboehmer) To: [email protected] To: [email protected] Sent: Nov 27, 2009 9:03 AM Subject: RE: [c-nsp] Using BFD as a link monitoring protocol Hi, > I need to monitor the state of links between router interfaces, and I have > a case where the link may go down (due to fibre break at L2) but the > interfaces still appear up when polled (we're on a ring). When a link goes > down I need to get sent a trap specifically identifying which link went > down, so I've looked at BFD (Bidirectional Forwarding Detection), and the > idea is to set up bfd sessions to run between each pair of interfaces that > define a link, and a session failure will result in snmp traps being sent > identifying which link failed. > > My question is: Has anyone deployed BFD for this purpose, i.e link failure > monitoring, and is this an appropriate application of BFD? Well, you can't just run BFD by itself, you need to have an application/client (routing protocols, HSRP, etc.) which is configured to use BFD before BFD establishes a session (not sure if the hidden command "bfd neighbor x.x.x.x" can work around this). In addition, BFD MIB is not yet there except in 12.2SRE. Not sure how many pairs you need to monitor, but you could investigate using IP-SLA probes for this purpose.. oli Sent via my BlackBerry from Vodacom - let your email find you! _______________________________________________ cisco-nsp mailing list [email protected] https://puck.nether.net/mailman/listinfo/cisco-nsp archive at http://puck.nether.net/pipermail/cisco-nsp/
