netdev - Re: r8169 in 2.6.18 silently corrupting data, 2.6.22-rc3 link not detected at all

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Message-ID: <20070528213425.GB4494@electric-eye.fr.zoreil.com>
Date:	Mon, 28 May 2007 23:34:25 +0200
From:	Francois Romieu <romieu@...zoreil.com>
To:	Andrew Paprocki <andrew@...iboo.com>
Cc:	netdev@...r.kernel.org
Subject: Re: r8169 in 2.6.18 silently corrupting data, 2.6.22-rc3 link not detected at all

Andrew Paprocki <andrew@...iboo.com> :
[...]
> The align errors in ethtool show up even in the "working" 2.6.18.
> Could this be related to the fact that other hosts on this gigabit
> network run with a 9000 MTU ? I saw that this chipset has a hardware
> limitation and the drivers caps off at 7200..

Assuming you use a real level 2 ethernet switch, the MTU MUST be the same
for each device in the LAN: cap everybody at 7200 bytes.

I raised the issue with an engineer from Realtek once and he did
not seem to worry too much.

-- 
Ueimor
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