From mboxrd@z Thu Jan  1 00:00:00 1970
From: Joe Perches <joe@perches.com>
Subject: Re: [E1000-devel] [PATCH] fixing hw timestamping in igb
Date: Wed, 09 Feb 2011 00:56:41 -0800
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Cc: "Ronciak, John" <john.ronciak@intel.com>,
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To: Anders Berggren <anders@halon.se>
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On Wed, 2011-02-09 at 09:24 +0100, Anders Berggren wrote:
> Our hardware ping, using Intel 82580 NICs,
> have an accuracy of 8 nanoseconds.

Perhaps you mean 8 nanosecond resolution?
Is documentation available for this claim?