[85116] in North American Network Operators' Group
Re: Cogent/Level 3 depeering
daemon@ATHENA.MIT.EDU (Todd Vierling)
Wed Oct 5 14:42:30 2005
Date: Wed, 5 Oct 2005 14:04:36 -0400 (EDT)
From: Todd Vierling <tv@duh.org>
To: Matthew Crocker <matthew@crocker.com>
Cc: nanog@nanog.org
In-Reply-To: <EAEA21D7-1D19-4C78-898E-710F184B3AD4@crocker.com>
Errors-To: owner-nanog@merit.edu
On Wed, 5 Oct 2005, Matthew Crocker wrote:
> > So perhaps the question you should be asking is: Why didn't routes for
> > these networks fall over to the other upstream peers which *are* capable of
> > moving the packets? Surely MCI, AT&T, Sprint, and others would carry the
> > packets to the right place. I can see the paths right here....
>
> They did, and I'm not down. I see Level 3 via Sprint and GNAPs/CENT just
> fine.
No, I mean: Why didn't *your upstream's* routes fall back to *their* other
peers, who should be perfectly capable of transiting those packets?
The thinly veiled implication there is that "full mesh" is not a long term
effective way to run the backbone level transit, because dropping one peer
without an alternate path means that we get broken transit. Yum.
--
-- Todd Vierling <tv@duh.org> <tv@pobox.com> <todd@vierling.name>
