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From: Carsten Aulbert <carsten.aulbert@aei.mpg.de>
To: Stephen Hemminger <shemminger@linux-foundation.org>
Cc: netdev@vger.kernel.org
Subject: Re: Yukon2 88E8056 card problem with switch?
Date: Fri, 15 May 2009 13:08:45 +0200	[thread overview]
Message-ID: <4A0D4D3D.8030902@aei.mpg.de> (raw)
In-Reply-To: <20090514080615.6419b121@nehalam>

Hi again

Stephen Hemminger schrieb:
> 
> You are only seeing partial flow control. My recommendation would be to
> turn off flow control with:
>    ethtool -A eth0 autoneg off rx off tx off
> 
Tried that, did not help.

> 
> It works with other switches, so check cable and try another switch.
> 

I think I've overlooked something. Is it possible that said chip (or the
driver) has problems with Jumbo frames? Our usual setup for more than a
year now is that we run everything with MTU 9000 and thus I have not
looked into this before. I just did a full install with MTU 1500 and it
just worked.

Is there a known issue with Jumbo frames?

The same set-up (switch, cable, etc, works with an e1000 and Jumbo frames).

Cheers

CArsten


      parent reply	other threads:[~2009-05-15 11:08 UTC|newest]

Thread overview: 3+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
     [not found] <4A0BC769.9010507@aei.mpg.de>
2009-05-14 15:06 ` Yukon2 88E8056 card problem with switch? Stephen Hemminger
2009-05-14 15:41   ` Carsten Aulbert
2009-05-15 11:08   ` Carsten Aulbert [this message]

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