North American Network Operators Group
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Re: link between Sprint and Level3 Networks is down in Chicago

  • From: Matthew Petach
  • Date: Thu Nov 09 19:43:57 2006
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On 11/9/06, Deepak Jain <[email protected]> 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
>
>
>