[184844] in North American Network Operators' Group
Re: IGP choice
daemon@ATHENA.MIT.EDU (Daniel Corbe)
Thu Oct 22 17:43:59 2015
X-Original-To: nanog@nanog.org
From: Daniel Corbe <dcorbe@hammerfiber.com>
To: "marcel.duregards\@yahoo.fr" <marcel.duregards@yahoo.fr>
Date: Wed, 21 Oct 2015 23:55:09 -0400
In-Reply-To: <5629155D.3090206@yahoo.fr> (marcel's message of "Thu, 22 Oct
2015 18:57:01 +0200")
Cc: "nanog@nanog.org" <nanog@nanog.org>
Errors-To: nanog-bounces@nanog.org
"marcel.duregards@yahoo.fr" <marcel.duregards@yahoo.fr> writes:
> Hi everyone,
>
> Anybody from Yahoo to share experience on IGP choice ?
> IS-IS vs OSPF, why did you switch from one to the other, for what reason ?
> Same question could apply to other ISP, I'd like to heard some
> international ISP/carriers design choice, please.
>
> Thank in advance,
> Best regards,
> -Marcel
I worked a project as recently as 2009 where we tried to connect two
6509s together over a tunnel interface and wanted to extend Area 0
across it and couldn't because it was a limitation of the version of IOS
we were running at the time.
That forced us to use isis.
It was a decision based on pragmatism rather than design choice; and we
were a small operator, too. The choice of an interior routing protocol
really doesn't have much implication for small operators.
