[44412] in North American Network Operators' Group
Re: Followup British Telecom outage reason
daemon@ATHENA.MIT.EDU (Neil J. McRae)
Sat Nov 24 06:04:31 2001
In-Reply-To: <Pine.GSO.4.40.0111231752290.3044-100000@clifden.donelan.com> from Sean Donelan at "Nov 23, 2001 06:01:32 pm"
To: sean@donelan.com (Sean Donelan)
Date: Sat, 24 Nov 2001 11:05:20 +0000 (GMT)
Cc: nanog@merit.edu
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From: neil@DOMINO.ORG (Neil J. McRae)
Errors-To: owner-nanog-outgoing@merit.edu
>
>
> BT is telling ISPs the reason for the multi-hour outage was
> a software bug in the interface cards used in BT's core network.
> BT installed a new version of the software. When that didn't fix
> the problem, they fell back to a previous version of the software.
>
> BT didn't identify the vendor, but BT is identified as a "Cisco Powered
> Network(tm)." Non-BT folks believe the problem was with GSR interface
> cards. I can't independently confirm it.
>
I'd be surprised if it was the GSR, and in anycase that doesn't
absolve anyone. If it was a software issue- why wasn't the software
properly tested? Why was such a critical upgrade rolled out across
the entire network at the same time? It doesn't add up.
Neil.
