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Date:      Thu, 30 Apr 2009 09:04:05 +0200
From:      Miki <miki.bsd@gmail.com>
To:        "M. Warner Losh" <imp@bsdimp.com>
Cc:        freebsd-net@freebsd.org
Subject:   Re: [ed] link state constantly going down and up
Message-ID:  <261c29700904300004k4bc02635m2729a0a54c09c135@mail.gmail.com>
In-Reply-To: <20090429.141002.-720655694.imp@bsdimp.com>
References:  <261c29700904282342q62828573hf2631a7f79a10581@mail.gmail.com> <20090429.141002.-720655694.imp@bsdimp.com>

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2009/4/29 M. Warner Losh <imp@bsdimp.com>

> : I have a problem with a D-Link DFE-670TXD which is handled by if_ed :
> : the link state is constantly going down and up :
> : Apr 28 14:21:33 iut-mir-o kernel: ed0: link state changed to DOWN
> : Apr 28 14:21:35 iut-mir-o kernel: ed0: link state changed to UP
> ...
> : the problem appear with the following commit :
> : SVN rev 190643 on 2009-04-02 16:58:45Z by imp (CVS rev 1.126)
> : I do not see any link state change if I revert the commit.
>
> Doh!
>
> I needed to force auto negotiation for other cards to work.  Let me
> see if I can dig up the DFE-670TXD and go from there...  Are you also
> seeing really horrible network performance as well?  Do you see this
> only under load, or just at idle?
>
> Warner
>

Yes network performance suffers from this. The problem only appears under
load
but not when idle.

Mikael



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