netdev - Re: Fwd: Linux stack performance drop (TCP and UDP) in 3.10 kernel in routed scenario

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Message-ID: <1401899666.3645.255.camel@edumazet-glaptop2.roam.corp.google.com>
Date:	Wed, 04 Jun 2014 09:34:26 -0700
From:	Eric Dumazet <eric.dumazet@...il.com>
To:	Suprasad Mutalik Desai <suprasad.desai@...il.com>
Cc:	netdev@...r.kernel.org, davem@...emloft.ne
Subject: Re: Fwd: Linux stack performance drop (TCP and UDP) in 3.10 kernel
 in routed scenario

On Wed, 2014-06-04 at 07:59 -0700, Eric Dumazet wrote:

> Its yet not clear why a router has to checksum TCP packets.
> 
> Maybe a conntracking requirement...


Right... you can tweak nf_conntrack_checksum



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