Re: Duplex mismatch

Pat,

Why don't you want your LAN to be full duplex?
What kind of hub/switch are you using?

Sean


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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>
>


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