RE: NIC Speed and Duplexing


Subject: RE: NIC Speed and Duplexing
From: W.D. McKinney (deem@wdm.com)
Date: Fri Nov 21 2003 - 13:55:55 AKST


On Fri, 2003-11-21 at 13:46, Jan Zumwalt wrote:
> First, I am definitely *NOT* a network guru so this is not much of a
> qualified answer. But... what I remember is the hardware does the speed
> switching automatically. I am unaware of any manual defeat for this feature.
> The internal electronics senses a certain number of packet losses and down
> shifts. My assumption is that if a 100% packet success prevails for a time,
> it will attempt high gear again - no user control.
> JZ
>
> -----Original Message-----
> From: aklug-bounce@aklug.org [mailto:aklug-bounce@aklug.org]On Behalf Of Dan
> Wolf
> Sent: Friday, November 21, 2003 6:24 AM
> To: aklug@aklug.org
> Subject: NIC Speed and Duplexing
>
> Hello all,
> I am running Suse 8.2 (soon 9.0) on an Abit BE6 II MB with a P500. A 3Com
> Fast Ethernet PCI 3C595-TX is installed. Can anyone provide a clue or
> pointer to information on how to selectivly set the Speed (10 or 100) and
> the Duplexing (Full or Half) for the card. The 3Com driver for Windows
> permits changing these parameters but I have been unable to locate details
> for doing this in Linux. I have looked through the configuration tools
> included with SUSE and read the Ethernet How-To but I have not had any luck.
> The system runs fine but stays at 10Mb. I have two additional systems which
> I have connected to to the same switch. These systems are running Intel
> eepro 10/100 cards and run at 100 full by default.
> Thanks in advance!
> Dan
>
>

I recommend mii-tool as that is what I use. Does the trick every time.
See http://www.die.net/doc/linux/man/man8/mii-tool.8.html

Dee

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