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Date: Sat, 7 May 2011 08:28:30 +0100 From: Alexander Clouter <alex@...riz.org.uk> To: linux-kernel@...r.kernel.org Cc: linux-wireless@...r.kernel.org Subject: Re: How to disable TCP checksum calculation? Wu, Xia <xia.wu@...el.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. -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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