On Thu, Jun 13, 2002 at 08:37:53AM -0400, Rodney Fulk wrote:

> Isn't that handled automatically by the card?

It's supposed to, but sometimes autonegotiation doesn't always work
right. Those who use cisco know it only too well.

So I need to force the card to use full-duplex.

> > > Hello , somebody knows which file I need to modify for my linux machine
> > > runs at 10Mbs or 100Mbs?  Thanks
> > 
> > Actually, I'm trying to find some information about this myself. I have
> > a server with a quad-port PCI ethernet card, made by Tulip. This is what
> > dmesg shows:
> > 
> > Linux Tulip driver version 0.9.15-pre2 (May 16, 2001)
> > tulip0:  EEPROM default media type Autosense.
> > tulip0:  Index #0 - Media MII (#11) described by a 21142 MII PHY 
> > (3) block.
> > tulip0:  MII transceiver #1 config 3100 status 7849 advertising 01e1.
> > eth1: Digital DS21143 Tulip rev 65 at 0xcc00, 00:80:C8:B9:C0:58, IRQ 11.
> > tulip1:  EEPROM default media type Autosense.
> > tulip1:  Index #0 - Media MII (#11) described by a 21142 MII PHY 
> > (3) block.
> > tulip1:  MII transceiver #1 config 3100 status 7849 advertising 01e1.
> > eth2: Digital DS21143 Tulip rev 65 at 0xc880, 00:80:C8:B9:C0:57, IRQ 9.
> > tulip2:  EEPROM default media type Autosense.
> > tulip2:  Index #0 - Media MII (#11) described by a 21142 MII PHY 
> > (3) block.
> > tulip2:  MII transceiver #1 config 3100 status 7849 advertising 01e1.
> > eth3: Digital DS21143 Tulip rev 65 at 0xc800, 00:80:C8:B9:C0:56, IRQ 3.
> > tulip3:  EEPROM default media type Autosense.
> > tulip3:  Index #0 - Media MII (#11) described by a 21142 MII PHY 
> > (3) block.
> > tulip3:  MII transceiver #1 config 3100 status 7869 advertising 01e1.
> > eth4: Digital DS21143 Tulip rev 65 at 0xc480, 00:80:C8:B9:C0:55, IRQ 10.
> > 
> > I have connected eth4 to an HP4000M core switch at our provider, and
> > that switch port is set to 100MB, full-duplex. However, the message in
> > the /var/log/messages file of this server shows:
> > 
> > Jun 11 16:35:25 ETR1500 kernel: eth4: Setting half-duplex based on MII#1
> > link partner capability of 0081.
> > 
> > Is there any way I can force this eth4 port to full duplex? I tried to
> > look in the ifconfig man page, but I could not find any relevant option.

-- 
Anand Buddhdev
http://anand.org



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