[53854] in North American Network Operators' Group
Re: Risk of Internet collapse grows
daemon@ATHENA.MIT.EDU (Ratul Mahajan)
Fri Nov 29 17:06:01 2002
Date: Fri, 29 Nov 2002 14:05:36 -0800 (PST)
From: Ratul Mahajan <ratul@cs.washington.edu>
To: nanog@merit.edu
In-Reply-To: <038101c297dd$d4e291a0$f7333b41@amer.cisco.com>
Errors-To: owner-nanog-outgoing@merit.edu
On Fri, 29 Nov 2002, Stephen Sprunk wrote:
> How much of this research is based on marketing maps on the ISPs' web sites,
> versus actual maps of the networks in question? Most "tier 1" ISPs won't
> even let their vendors see the latter.
last year we *measured* isp maps as part of a research project called
rocketfuel and found that the marketing maps can differ significantly from
the real ones quite a bit because of lack-of-detail, outdated-ness, or
optimistic-projections. a paper describing the methodology and the maps
themselves can be found off:
http://www.cs.washington.edu/research/networking/rocketfuel/
-- ratul
