[tulip-bug] Capture Effect - a value-added feature and options=14

[Donald Becker]

On Tue, 3 Oct 2000, Junjiro Okajima wrote:

> Donald Becker:
> > > matter of negotiaton to that hub. So I decided to add a module option,
> > > options=14 which means 100M and full-duplex.
> > 
> > You are forcing full duplex... that is usually wrong.
> 
> What can I do without specfying options, in case of a hub which is
> full-duplex'able but tulip driver doesn't recognize?

What makes you think that your hub supports full duplex?

"Hub" usually means "repeater", which is a half duplex device.
The device is usually called a "switch" if it supports full duplex.

Forcing full duplex is almost always a bad idea.  If you have an old switch
which doesn't support autonegotiation it's best to just leave it in half
duplex mode.  You'll never notice the performance difference , but you will
notice the performance drop with a duplex mismatch.

Donald Becker				becker@scyld.com
Scyld Computing Corporation		http://www.scyld.com
410 Severn Ave. Suite 210		Generation Two Beowulf Clusters
Annapolis MD 21403