[93347] in North American Network Operators' Group
Re: link between Sprint and Level3 Networks is down in Chicago
daemon@ATHENA.MIT.EDU (Matthew Petach)
Thu Nov 9 19:41:59 2006
Date: Thu, 9 Nov 2006 16:37:46 -0800
From: "Matthew Petach" <mpetach@netflight.com>
To: deepak@ai.net
Cc: "Dennis Dayman" <dennis@thenose.net>, nanog@merit.edu
In-Reply-To: <4553A4DA.4090402@ai.net>
Errors-To: owner-nanog@merit.edu
On 11/9/06, Deepak Jain <deepak@ai.net> wrote:
> Does someone know if this is a *single* link down?? It seems bizarre to
> me that there would only be a single link (geographically) between those
> two.
>
> Whatever happened to redundancy?
> Deepak
From the outside, this appeared to be more like a CEF
consistency sort of thing; routes were still carrying packets
to the interconnect, but the packets were not successfully
making it across the interconnect. I would hazard a guess
that had the link truly gone down in the classic sense, BGP
would have done the more proper thing, and found a different
path for the routes to propagate along.
Again, this is speculation from the outside, based on the
path packets were taking before dropping on the floor.
Matt
>
> Dennis Dayman wrote:
> > We received confirmation from Time Warner. The link between Sprint and
> > Level3 Networks is down in Chicago. This has been an issue since 3:10 PM
> > EST. Time Warner has a ticket open to address the issue. Not sure what it
> > is yet.
> >
> > -Dennis
> >
> >
> >
>
>
