Document Action: 'BGP Wedgies' to Informational RFC

Wed Jun 15 20:47:59 UTC 2005

Will sharply 'pulling up' the MED on a rear-facing peer clear the
wedgie, or make it worse???

Sorry, couldn't resist...

Chuck 

-----Original Message-----
From: owner-nanog at merit.edu [mailto:owner-nanog at merit.edu] On Behalf Of
Fergie (Paul Ferguson)
Sent: Wednesday, June 15, 2005 1:29 PM
To: nanog at merit.edu
Subject: FWD: Document Action: 'BGP Wedgies' to Informational RFC 

Direct operational relevence, methinks.

FYI.

- ferg

-- The IESG <iesg-secretary at ietf.org> wrote:

The IESG has approved the following document:

- 'BGP Wedgies '
   <draft-ietf-grow-bgp-wedgies-03.txt> as an Informational RFC

This document is the product of the Global Routing Operations Working
Group. 

The IESG contact persons are David Kessens and Bert Wijnen.

A URL of this Internet-Draft is:
http://www.ietf.org/internet-drafts/draft-ietf-grow-bgp-wedgies-03.txt

Technical Summary

 It has commonly been assumed that the Border Gateway Protocol (BGP)
 is a tool for distributing reachability information in a manner that
 creates forwarding paths in a deterministic manner.  In this memo we 
 will describe a class of BGP configurations for which there is more
 than one potential outcome, and where forwarding states other than
 the intended state are equally stable, and that the stable state
 where BGP converges may be selected by BGP in a non-deterministic
 manner.  These stable, but unintended, BGP states are termed here
 "BGP Wedgies".

Working Group Summary

 The Grow Working Group came to consensus on this document.

Protocol Quality

 This document was reviewed for the IESG by David Kessens.

--
"Fergie", a.k.a. Paul Ferguson
 Engineering Architecture for the Internet
 fergdawg at netzero.net or fergdawg at sbcglobal.net
 ferg's tech blog: http://fergdawg.blogspot.com/