[92120] in North American Network Operators' Group

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Re: TCP receive window set to 0; DoS or not?

daemon@ATHENA.MIT.EDU (billn@pegasus.billn.net)
Thu Sep 7 19:39:13 2006

Date: Thu, 7 Sep 2006 16:40:57 -0700 (MST)
From: billn@pegasus.billn.net
To: Richard A Steenbergen <ras@e-gerbil.net>
Cc: Travis Hassloch <travis.hassloch@rackspace.com>, nanog@merit.edu
In-Reply-To: <20060907232402.GA2180@overlord.e-gerbil.net>
Errors-To: owner-nanog@merit.edu



On Thu, 7 Sep 2006, Richard A Steenbergen wrote:

> Advertising a window of 0 is a perfectly valid way of telling the other 
> side that you are temporarily out of resoruces, and would like them to 
> stop sending you data. This can be caused by any number of things, from a 

This makes sense when taken in combination with our earlier assessment 
that it was coming from mobile devices, like PDAs or smart phones, limited 
on both CPU and optimized to save power.

- billn

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