nanog mailing list archives
RE: Multi-homed clients and BGP timers
From: "Frank Bulk" <frnkblk () iname com>
Date: Sun, 24 May 2009 08:53:56 -0500
I would agree, BFD is the ideal way to go. I've wanted our upstream provider to use BFD on our OSPF and iBGP links, but they said they're still testing it internally. They're quite gun-shy on implementing it because the existing configuration is stable -- they don't want a new protocol creating unnecessary failovers. I'm just looking to cut failovers from the existing 12 to 45 seconds (depending on the direction) to a second or two. Frank -----Original Message----- From: Ivan Pepelnjak [mailto:ip () ioshints info] Sent: Saturday, May 23, 2009 7:40 AM To: 'Steve Bertrand'; 'Jack Bates' Cc: 'NANOG list' Subject: RE: Multi-homed clients and BGP timers For BFD to work, you need: * ISR + 12.4(15)T (or later) * 7200 with 12.4T or 12.2SRx * 7600/6500/GSR + 12.2SRB (or later) * ASR A complete list is at the bottom of this document: http://www.cisco.com/en/US/docs/ios/12_0s/feature/guide/fs_bfd.html You'll find some more BFD details and usage guidelines here: http://www.nil.com/ipcorner/bfd/ Best regards Ivan http://www.ioshints.info/about http://blog.ioshints.info/
Correct me if I'm wrong, but wasn't this exactly the typeof situationthat BFD was designed to detect and help with?I don't know, but I'm printing it[1] anyway to take home and read. It's been mentioned a few times, and clearly worth learning about. Thanks, Steve [1] http://bgp.potaroo.net/ietf/all-ids/draft-ietf-bfd-v4v6-1hop-09.txt
Current thread:
- Multi-homed clients and BGP timers Steve Bertrand (May 22)
- Re: Multi-homed clients and BGP timers Zaid Ali (May 22)
- Re: Multi-homed clients and BGP timers Steve Bertrand (May 22)
- Re: Multi-homed clients and BGP timers Danny McPherson (May 22)
- RE: Multi-homed clients and BGP timers Deepak Jain (May 22)
- Re: Multi-homed clients and BGP timers Steve Bertrand (May 22)
- Re: Multi-homed clients and BGP timers Jack Bates (May 22)
- Re: Multi-homed clients and BGP timers Steve Bertrand (May 22)
- RE: Multi-homed clients and BGP timers Ivan Pepelnjak (May 23)
- RE: Multi-homed clients and BGP timers Frank Bulk (May 24)
- Re: Multi-homed clients and BGP timers Steve Bertrand (May 22)
- Re: Multi-homed clients and BGP timers Zaid Ali (May 22)
- RE: Multi-homed clients and BGP timers Ivan Pepelnjak (May 23)
- Re: Multi-homed clients and BGP timers Florian Weimer (May 25)
- Re: Multi-homed clients and BGP timers Danny McPherson (May 25)
- Re: Multi-homed clients and BGP timers Florian Weimer (May 25)
- IXP BGP timers (was: Multi-homed clients and BGP timers) Chris Caputo (May 25)
- Re: IXP BGP timers (was: Multi-homed clients and BGP timers) Andree Toonk (May 25)
- RE: IXP BGP timers (was: Multi-homed clients and BGP timers) John.Herbert (May 25)