From: Alexander Clouter <alex@digriz.org.uk>
To: linux-kernel@vger.kernel.org
Cc: linux-wireless@vger.kernel.org
Subject: Re: How to disable TCP checksum calculation?
Date: Sat, 7 May 2011 08:28:30 +0100 [thread overview]
Message-ID: <ut8f98-hoj.ln1@chipmunk.wormnet.eu> (raw)
In-Reply-To: A24AE1FFE7AEC5489F83450EE98351BF35079BA24F@shsmsx502.ccr.corp.intel.com
Wu, Xia <xia.wu@intel.com> wrote:
>
> I'm studying TCP transporting efficiency. Now I want to disable TCP
> checksum calculation, but I cannot find the right way to disable it.
> Who can give me a help on how to disable TCP checksum on Linux?
>
Look at using TCP checksum offloading to see the effects:
http://en.wikipedia.org/wiki/TCP_Offload_Engine
----
berk:/home/alex# ethtool -k eth0
Offload parameters for eth0:
rx-checksumming: on
tx-checksumming: on
scatter-gather: on
tcp-segmentation-offload: on
udp-fragmentation-offload: off
generic-segmentation-offload: on
generic-receive-offload: on
large-receive-offload: off
rx-vlan-offload: on
tx-vlan-offload: on
ntuple-filters: off
receive-hashing: on
----
Cheers
--
Alexander Clouter
.sigmonster says: Dental health is next to mental health.
next prev parent reply other threads:[~2011-05-07 8:08 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-05-07 4:37 How to disable TCP checksum calculation? Wu, Xia
2011-05-07 7:28 ` Alexander Clouter [this message]
2011-05-07 13:38 ` Eric Dumazet
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