nanog mailing list archives
Re: Points of Failure (was Re: National infrastructure asset)
From: "Grant A. Kirkwood" <grant () virtical net>
Date: Mon, 24 Sep 2001 12:22:08 -0700
Sean Donelan wrote:
On Mon, 24 Sep 2001, Bob Bownes wrote:But there was a point in time when taking out a certain parking garage in Va could have caused us a very great deal of difficulty. But I'd say we are past that, for the most part.Are we? When 25 Broadway failed, approximately 1% of the global Internet routing table also disappeared. Which I would guess qualifies it as a "major" hub.
But does that mean that X number of sites were unreachable, or that there were simply Y number fewer routes to X sites? (Excluding those *directly* affected, ie; those *in* 25 Broadway)
Verizon still has 100,000 lines out of service, and only now begun to restore service to "small" businesses.
Yes, but my understanding was that we were referring to IP traffic. POTS doesn't exactly have a built-in routing protocol.
A couple of years ago a fiber cut in Ohio disrupted about 20% of the Internet routing table.
But again, does this mean that 20% of the Internet was unreachable, or that there were 20% fewer routes to a given number of (hopefully multihomed) sites? No, this question is not rhetorical... I simply don't have any imperical evidence to look at that could adequately answer this question. Grant -- Grant A. Kirkwood - grant () virtical net Chief Technology Officer - Virtical Solutions, Inc. http://www.virtical.net/
Current thread:
- Re: National infrastructure asset, (continued)
- Re: National infrastructure asset Bill McGonigle (Sep 24)
- Re: National infrastructure asset Anthony Townsend (Sep 24)
- Re: National infrastructure asset Joel Jaeggli (Sep 24)
- Re: National infrastructure asset Steve Meuse (Sep 25)
- Points of Failure (was Re: National infrastructure asset) Sean Donelan (Sep 24)
- Re: Points of Failure (was Re: National infrastructure asset) Alex Bligh (Sep 24)
- Re: Points of Failure (was Re: National infrastructure asset) Sean Donelan (Sep 24)
- Re: Points of Failure (was Re: National infrastructure asset) Grant A. Kirkwood (Sep 24)
- Re: Points of Failure (was Re: National infrastructure asset) Bob Bownes (Sep 24)
- Re: Points of Failure (was Re: National infrastructure asset) Sean Donelan (Sep 24)
- Re: Points of Failure (was Re: National infrastructure asset) Grant A. Kirkwood (Sep 24)
- Re: Points of Failure (was Re: National infrastructure asset) Chris Woodfield (Sep 24)
- Re: Points of Failure (was Re: National infrastructure asset) bmanning (Sep 24)
- Re: Points of Failure (was Re: National infrastructure asset) Sean Donelan (Sep 25)
- Re: Points of Failure (was Re: National infrastructure asset) batz (Sep 25)
- Re: Points of Failure (was Re: National infrastructure asset) Peter van Dijk (Sep 25)
- Re: Points of Failure (was Re: National infrastructure asset) Randy Bush (Sep 25)
- Re: Points of Failure (was Re: National infrastructure asset) Alex Bligh (Sep 25)
- Re: Points of Failure (was Re: National infrastructure asset) Joseph T. Klein (Sep 25)
- RE: Points of Failure (was Re: National infrastructure asset) Matt Levine (Sep 24)
- Re: Points of Failure (was Re: National infrastructure asset) mike harrison (Sep 24)