Date: Thu, 30 Apr 2009 01:36:10 -0600 (MDT) From: "M. Warner Losh" <imp@bsdimp.com> To: miki.bsd@gmail.com Cc: freebsd-net@FreeBSD.org Subject: Re: [ed] link state constantly going down and up Message-ID: <20090430.013610.439575052.imp@bsdimp.com> In-Reply-To: <261c29700904300029s6757d39ei86fbf69ef816fa48@mail.gmail.com> References: <261c29700904300004k4bc02635m2729a0a54c09c135@mail.gmail.com> <20090430.011738.1617886960.imp@bsdimp.com> <261c29700904300029s6757d39ei86fbf69ef816fa48@mail.gmail.com>
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In message: <261c29700904300029s6757d39ei86fbf69ef816fa48@mail.gmail.com>
Miki <miki.bsd@gmail.com> writes:
: 2009/4/30 M. Warner Losh <imp@bsdimp.com>
:
: > In message: <261c29700904300004k4bc02635m2729a0a54c09c135@mail.gmail.com>
: > Miki <miki.bsd@gmail.com> writes:
: > : 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.
: >
: > Thanks. I'll try to reproduce it here. I noticed this on one of the
: > cards, but had trouble reproducing it, but I'll try harder.
: >
: > Warner
: >
:
: I can easily reproduce this by downloading an ISO image via ftp
: and doing a checkout of a subversion repository
OK. I'll try that. Do you know if you are able to trigger it with
ttcp too? That's where I saw the odd symptoms before...
Warner
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