[53787] in North American Network Operators' Group
Re: Risk of Internet collapse grows
daemon@ATHENA.MIT.EDU (Stephen J. Wilcox)
Wed Nov 27 08:38:32 2002
Date: Wed, 27 Nov 2002 13:37:58 +0000 (GMT)
From: "Stephen J. Wilcox" <steve@telecomplete.co.uk>
To: variable@ednet.co.uk
Cc: "nanog@merit.edu" <nanog@merit.edu>
In-Reply-To: <Pine.LNX.4.44.0211271324570.15745-100000@pachabel.ednet.co.uk>
Errors-To: owner-nanog-outgoing@merit.edu
On Wed, 27 Nov 2002 variable@ednet.co.uk wrote:
>
> On Wed, 27 Nov 2002, David Diaz wrote:
>
> > I think this is old news. There was a cover story back in 1996 time
> > frame on Mae_east. We have to ask how likely is this with many of
> > the top backbones doing private peering over local loops, how much
> > damage would occur if an exchange point where hit?
well recent issues have suggested an exchange can cause short term issues at
least, for a longer outage i dont think we have an example.. in the short term
flap dampening causes unreachability and circuits hitting capacity prior to a
reroute by the noc are big problems but these may be solvable (or worsened) if
an outage were to persist..
> It depends which exchange point is hit. There are a couple of buildings
> in London which if hit would have a disasterous affect on UK and European
> peering.
Europe would reroute, UK would suffer.. but this comes back to the regional
effect
> What about fibre landing stations? Are these diverse enough? Again, most
> of the transatlantic fibre (for the UK) appears to come in near Lands End.
Hmm, I know of multiple landings including lands end... so it is diverse, but
the sheer bandwidth down one cable is very large, an outage would be noticable.
Steve
