From mboxrd@z Thu Jan  1 00:00:00 1970
From: Hannes Frederic Sowa <hannes@stressinduktion.org>
Subject: Re: Big performance loss from 3.4.63 to 3.10.13 when routing ipv4
Date: Wed, 2 Oct 2013 00:20:02 +0200
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Cc: netdev@vger.kernel.org
To: Wolfgang Walter <linux@stwm.de>
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On Tue, Oct 01, 2013 at 06:39:32PM +0200, Wolfgang Walter wrote:
> All network traffic over the router become slow and sluggish. If one pings the 
> router there is a packet loss. After about 2 minutes the traffic completely 
> stalls for about 1 minute. Then it works again as in the beginning to then 
> stall again. And so on.

Maybe dropwatch can give a first hint?