netdev - Re: Bug#709616: floods the network with pause packets

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Message-ID: <1369918724.3469.445.camel@deadeye.wl.decadent.org.uk>
Date:	Thu, 30 May 2013 13:58:44 +0100
From:	Ben Hutchings <ben@...adent.org.uk>
To:	Stéphane Glondu <glondu@...ian.org>
Cc:	709616@...s.debian.org, e1000-devel@...ts.sourceforge.net,
	netdev <netdev@...r.kernel.org>
Subject: Re: Bug#709616: floods the network with pause packets

On Thu, 2013-05-30 at 11:21 +0200, Stéphane Glondu wrote:
> Le 26/05/2013 18:10, Ben Hutchings a écrit :
> > OK, so the switch is indeed defective: it says it can handle pause
> > frames, but it can't.
> 
> The problem happened on (at least) two different switches from different
> manufacturers (Transtec and Netgear).
> 
> FWIW, the problem just happened on another machine (with same hardware)
> this morning. It is running Ubuntu with kernel 3.5.0-31-generic.
> 
> > Could you check whether the switch is also sending pause frames back to
> > the port that's generating them?
> 
> How exactly do I do that? Is disconnecting the faulty computer and
> connecting my laptop in its place right?

ethtool -S eth0 | grep flow_control

Ben.

-- 
Ben Hutchings
If at first you don't succeed, you're doing about average.

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