[195662] in North American Network Operators' Group
Re: Max Prefix Out, was Re: Verizon 701 Route leak?
daemon@ATHENA.MIT.EDU (Leo Bicknell)
Thu Aug 31 17:12:35 2017
X-Original-To: nanog@nanog.org
Date: Thu, 31 Aug 2017 08:24:30 -0700
From: Leo Bicknell <bicknell@ufp.org>
To: nanog@nanog.org
Mail-Followup-To: nanog@nanog.org
In-Reply-To: <3C632718-E45B-4D41-93D5-30EC8B09AFEB@ip-clear.de>
Errors-To: nanog-bounces@nanog.org
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In a message written on Thu, Aug 31, 2017 at 12:50:58PM +0200, J??rg Kost w=
rote:
> What about adding an option to the BGP session that A & B do agree on a=
=20
> fixed number of prefixes in both directions, so Bs prefix-in could be As=
=20
> prefix-out automatically?
As others have pointed out, that's harder to do, but there's a
different reason it may not be desireable.
If a peer sets a limit to tear down the session with no automatic
reset, forcing a call to their NOC to get a human to reset it then
it may be advantageous to set your side to tear down at N-1 prefixes.
That way you can insure restoration at the speed of your NOC, and
not at the speed of your peer's.
--=20
Leo Bicknell - bicknell@ufp.org
PGP keys at http://www.ufp.org/~bicknell/
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