Re: Duplex mismatch

You should set your card to auto-negociate.

Chris.

On Mon, 31 Dec 2001, Pat Dalzell wrote:

> Hi,
> 
> First of all, I love the device - great work!  (Looking forward to Ogg
> Vorbis support :-)
> 
> I'm experiencing some problems hopefully someone can help with.  My LAN
> has 2 win98 boxes and 2 linux boxes all with static IP's, and a win2k
> laptop that gets it's IP via DHCP from one of the linux machines.  I'm
> getting the following kernel messages on the machine that runs the slimp3
> server:
> 
> Dec 31 16:06:03 moe kernel: eth0: Transmit error, Tx status register 82.
> Dec 31 16:06:03 moe kernel: Probably a duplex mismatch.  See
> Documentation/networking/vortex.txt
> Dec 31 16:06:03 moe kernel:   Flags; bus-master 1, dirty 271168(0) current
> 271168(0)
> Dec 31 16:06:03 moe kernel:   Transmit list 00000000 vs. c1632200.
> Dec 31 16:06:03 moe kernel:   0: @c1632200  length 800005b4 status
> 000105b4
> Dec 31 16:06:03 moe kernel:   1: @c1632240  length 800005b4 status
> 000105b4
> (followed by 13 messages similar to last message)
> 
> These happen every few minutes while the slimp3 plays.  The slimp3 plays
> fine and the linux machine doesn't lose connectivity.  Mii-tool reports:
> 
> eth0: no autonegotiation, 10baseT-HD, link ok
> 
> The "Probably a duplex mismatch" message is in reference to the following
> documentation:
> -----------
> "This is a common error which is almost always caused by another host on
> the same network being in full-duplex mode, while this host is in
> half-duplex mode.  You need to find that other host and make it run in
> half-duplex mode or fix this host to run in full-duplex mode.
> 
> As a last resort, you can force the 3c59x driver into full-duplex mode
> with
> 
>         options 3c59x full_duplex=1
> 
> but this has to be viewed as a workaround for broken network gear and
> should only really be used for equipment which cannot autonegotiate."
> -----------
> 
> Any ideas on how to gracefully fix this without making my whole LAN run
> full duplex?
> 
> Thanks,
> Pat
> 
> 
> 
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--
chris maresca
      internet systems architect -- www.chrismaresca.com

"Every day you may make progress. Every step may be fruitful. Yet there will stretch
out before you an ever-lengthening, ever-ascending path. You know you will never get
to the end of the journey. But this, so far from discouraging, only adds to the joy
and glory of the climb."                          [Sir Winston Churchill, 1874-1965]



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