[42858] in North American Network Operators' Group
Re: Points of Failure (was Re: National infrastructure asset)
daemon@ATHENA.MIT.EDU (bmanning@vacation.karoshi.com)
Mon Sep 24 15:52:51 2001
From: bmanning@vacation.karoshi.com
Message-Id: <200109242015.UAA02607@vacation.karoshi.com>
To: grant@virtical.net
Date: Mon, 24 Sep 2001 20:15:54 +0000 (UCT)
Cc: sean@donelan.com (Sean Donelan), nanog@merit.edu
In-Reply-To: <3BAF87E0.58942969@virtical.net> from "Grant A. Kirkwood" at Sep 24, 2001 12:22:08 PM
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> 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)
From what point did 1% of the routing table disappear?
Was the same visable from multiple, diverse points?
I expect that from some perspectives, 100% of the routing
table disappeared and some places didn't even see a blip.
--bill
