[156993] in North American Network Operators' Group
Internet routing table "completeness" monitoring?
daemon@ATHENA.MIT.EDU (ML)
Wed Oct 3 00:43:36 2012
Date: Wed, 03 Oct 2012 00:43:09 -0400
From: ML <ml@kenweb.org>
To: North American Networking and Offtopic Gripes List <nanog@nanog.org>
Reply-To: ml@kenweb.org
Errors-To: nanog-bounces+nanog.discuss=bloom-picayune.mit.edu@nanog.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?
[1] Varying levels of completeless apply.
