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North American Network Operators Group Date Prev | Date Next | Date Index | Thread Index | Author Index | Historical Re: Points of Failure (was Re: National infrastructure asset)
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 - [email protected] Chief Technology Officer - Virtical Solutions, Inc. http://www.virtical.net/
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