[36441] in North American Network Operators' Group
Re: Major Qwest ATM outage.
daemon@ATHENA.MIT.EDU (Sean Donelan)
Thu Apr 5 16:43:24 2001
Date: 5 Apr 2001 13:41:14 -0700
Message-ID: <20010405204114.10436.cpmta@c004.sfo.cp.net>
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To: oberman@es.net
From: Sean Donelan <sean@donelan.com>
Cc: nanog@merit.edu
Errors-To: owner-nanog-outgoing@merit.edu
On Thu, 05 April 2001, "Kevin Oberman" wrote:
> As was reported when Qwest did the software upgrade to all of their
> Lucent (Ascend) 550s, the Qwest IP net does not use ATM. It is
> entirely POS. As a result, the Qwest IP side was not impacted.
>
> This does look like the sort of like the cascading PNNI routing
> problems that the big upgrade last week was supposed to have fixed. I
> think the Lucent folk still have problems to deal with.
Folks have reported that qwest said the cause for the failure was an
OC48 going down, which led to instabilities within their network.
