nanog mailing list archives
Re: Internet routing table "completeness" monitoring?
From: Jay Ashworth <jra () baylink com>
Date: Wed, 3 Oct 2012 09:47:18 -0400 (EDT)
----- Original Message -----
From: "ML" <ml () kenweb org>
Has anyone put in place a method to identify if one their BGP peers suddenly withdraws X% of their prefixes? e.g I should expect ~420k prefixes in a "complete"[1] routing table from a transit peer today. If suddenly I'm only getting 390k prefixes I'd guess a major network was depeered or similiar. If so how are people doing this? SNMP MIB, screen scrape?
Well, if I had to do it, I think I'd just point munin at the router, yes, using SNMP, and put the prefix count graph up on the Big Wall, as a filled curve. That thing jumps around, someone will likely notice. This assumes a staffed NOC, of course, but it still gives you something to look at historically if you note a problem in an unstaffed situation as well. Cheers, -- jra -- Jay R. Ashworth Baylink jra () baylink com Designer The Things I Think RFC 2100 Ashworth & Associates http://baylink.pitas.com 2000 Land Rover DII St Petersburg FL USA #natog +1 727 647 1274
Current thread:
- Internet routing table "completeness" monitoring? ML (Oct 02)
- Re: Internet routing table "completeness" monitoring? Saku Ytti (Oct 02)
- Re: Internet routing table "completeness" monitoring? Jay Ashworth (Oct 03)
- RE: Internet routing table "completeness" monitoring? Joseph Jackson (Oct 03)
- RE: Internet routing table "completeness" monitoring? Eric Tykwinski (Oct 03)
- Re: Internet routing table "completeness" monitoring? Christopher Morrow (Oct 03)
- Re: Internet routing table "completeness" monitoring? Justin M. Streiner (Oct 03)
- RE: Internet routing table "completeness" monitoring? Eric Tykwinski (Oct 03)
- Message not available
- RE: Internet routing table "completeness" monitoring? Joseph Jackson (Oct 03)
- RE: Internet routing table "completeness" monitoring? William F. Maton Sotomayor (Oct 03)
- Re: Internet routing table "completeness" monitoring? Andrew Gallo (Oct 03)