From: Chris Friesen <chris.friesen@genband.com>
To: Pierre Louis Aublin <pierre-louis.aublin@inria.fr>
Cc: netdev@vger.kernel.org
Subject: Re: tcp/udp checksum on loopback interface
Date: Mon, 25 Jul 2011 18:04:18 -0600 [thread overview]
Message-ID: <4E2E0482.7030008@genband.com> (raw)
In-Reply-To: <4E292E51.4040802@inria.fr>
On 07/22/2011 02:01 AM, Pierre Louis Aublin wrote:
> Hello everybody
>
> I am interested in the reliability of TCP and UDP using the loopback
> interface.
> I found that there is no checksum verification on the body of packets
> transmitted through the loopback interface :
> Finally, why this behaviour? Is it because you assume message can not
> get corrupted while staying on the same machine?
That's correct. We can save cpu time by not doing the checksum because
we assume that our own hardware won't introduce errors (or if it does
and we care about them we'll be monitoring the hardware for ECC errors
anyways).
Chris
--
Chris Friesen
Software Developer
GENBAND
chris.friesen@genband.com
www.genband.com
prev parent reply other threads:[~2011-07-26 0:04 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-07-22 8:01 tcp/udp checksum on loopback interface Pierre Louis Aublin
2011-07-26 0:04 ` Chris Friesen [this message]
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