nanog mailing list archives
Re: Followup British Telecom outage reason
From: neil () DOMINO ORG (Neil J. McRae)
Date: Sat, 24 Nov 2001 11:05:20 +0000 (GMT)
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.
Current thread:
- Followup British Telecom outage reason Sean Donelan (Nov 23)
- Re: Followup British Telecom outage reason Neil J. McRae (Nov 24)
- Re: Followup British Telecom outage reason Sean Donelan (Nov 24)
- Re: Followup British Telecom outage reason Jared Mauch (Nov 24)
- Re: Followup British Telecom outage reason S (Nov 24)
- RE: Followup British Telecom outage reason Christian Kuhtz (Nov 24)
- Re: Followup British Telecom outage reason Paul Vixie (Nov 25)
- Re: Followup British Telecom outage reason Alex Bligh (Nov 26)
- RE: Followup British Telecom outage reason Christian Kuhtz (Nov 28)
- RE: Followup British Telecom outage reason Patrick Greenwell (Nov 28)
- Re: Followup British Telecom outage reason Peter Galbavy (Nov 30)
- Re: Followup British Telecom outage reason Neil J. McRae (Nov 30)
- Re: Followup British Telecom outage reason Sean Donelan (Nov 24)
- Re: Followup British Telecom outage reason Neil J. McRae (Nov 24)