[86467] in North American Network Operators' Group

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Re: BGP terminology question

daemon@ATHENA.MIT.EDU (Randy Bush)
Sun Nov 6 14:45:08 2005

From: Randy Bush <randy@psg.com>
Date: Sun, 6 Nov 2005 09:44:36 -1000
To: "Patrick W. Gilmore" <patrick@ianai.net>
Cc: nanog@merit.edu
Errors-To: owner-nanog@merit.edu


> A peer should never announce a route it has already announced unless  
> that route is withdrawn.

one of many counterexamples: change in igp will cause change in
med.  any attribute changes, and announcement is required.

e.g., an internal igp oscillation could cause what the op
describes.

randy


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