Subject: Re: Traffic storm interaction with MacOS 8.6
To: j.d.morton@lancaster.ac.uk (Jonathan Morton)
Date: Sun, 10 Dec 2000 18:23:41 +0000 (GMT)
Cc: linux-kernel@vger.kernel.org
In-Reply-To: <l0313030bb658f80c3180@[192.168.239.101]> from "Jonathan Morton" at Dec 10, 2000 10:07:42 AM
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From: Alan Cox <alan@lxorguk.ukuu.org.uk>
Sender: linux-kernel-owner@vger.kernel.org

> Analysis:
> 	This is probably a bug in the MacOS, as well as in Linux, and the
> presence of both is necessary to cause the effect.  I believe it can be

I would imagine its a bug in some mangling proxy in the middle. MacOS is
mentat streams which while not reknowned for its behaviour certainly isnt
normally in the complete idiot category

> systems, in the following manner.  The workaround involves NOT sending more
> than one TCP responses in a row which advertise a zero receive window,

Thats not legal. RFC's are explicit about when you send acks

> eliminating the storm.  When the receive window becomes available again, a
> single, empty TCP packet would be generated advertising the new window
> size; this I believe is already present.

This packet is unreliable so the acks must happen.

> 

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