[70137] in North American Network Operators' Group
Re: looking for Slammer infectee access link speeds
daemon@ATHENA.MIT.EDU (vern@ee.lbl.gov)
Sun May 2 11:36:13 2004
From: vern@ee.lbl.gov
To: Deepak Jain <deepak@ai.net>
Cc: Iljitsch van Beijnum <iljitsch@muada.com>, nanog@merit.edu
In-reply-to: Your message of Sun, 02 May 2004 11:23:51 EDT.
Date: Sun, 02 May 2004 08:35:42 -0700
Errors-To: owner-nanog-outgoing@merit.edu
> I think this is really the most important point. Link speeds and such
> are not as significant, maximum packet rates probably are.
Where link rates become key is in modeling the worm's dynamics. Because
often a single infected machine could fill an access link, additional
infections behind that same link didn't change the worm's overall scanning
rate; this is unlike other, non-"bandwidth-limited" worms, and changes
Slammer's growth to not be the usual exponential/logistic curve.
See our paper on Slammer for more details:
http://www.computer.org/security/v1n4/j4wea.htm
We're now trying to explore that effect, which requires knowing what those
bottleneck bandwidth rates were for sets of hosts behind a common bottleneck.
Vern
