From mboxrd@z Thu Jan 1 00:00:00 1970 From: Carsten Aulbert Subject: Re: Yukon2 88E8056 card problem with switch? Date: Fri, 15 May 2009 13:08:45 +0200 Message-ID: <4A0D4D3D.8030902@aei.mpg.de> References: <4A0BC769.9010507@aei.mpg.de> <20090514080615.6419b121@nehalam> Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Cc: netdev@vger.kernel.org To: Stephen Hemminger Return-path: Received: from welcomes-you.com ([85.214.50.128]:38494 "EHLO smtp.welcomes-you.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752757AbZEOLIu (ORCPT ); Fri, 15 May 2009 07:08:50 -0400 In-Reply-To: <20090514080615.6419b121@nehalam> Sender: netdev-owner@vger.kernel.org List-ID: 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