[eepro100] Speed and Duplexing, Once Again

Donald Becker becker@scyld.com
Thu Oct 17 16:58:01 2002

On Thu, 17 Oct 2002, Mirza, Danish wrote:

> can u tell me how to setup eepro100 to work on gige network ?

The eepro100 NICs only work at 10Mbps and 100Mbps.  They will not work
at gigabit speeds.

If the gigabit switch senses or negotiates the speed and duplex (most
switches do), everything will work automatically.

> do we have to put some parameters in /etc/modules.conf like we do to make it
> 100 FULL.

This is a great example of why forcing the speed and duplex to 100-full
is a very bad idea.
If you swap cables to a gigabit switch, your duplex will be mismatched.
If you then force the gigabit switch link to 100-full, an upgrade to a
gigabit card will be slow, and perhaps have a freshly-mismatched duplex.

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Donald Becker				becker@scyld.com
Scyld Computing Corporation		http://www.scyld.com
410 Severn Ave. Suite 210		Scyld Beowulf cluster system
Annapolis MD 21403			410-990-9993