[lug] NIC Question (full duplex)

[Fred Robinson]

Thanks Doug!

 Fred Robinson
Operator, SIPFusion
  sipfusion

(SIPFusion is a not for profit business development project)
558 Copperdale Ln.
Golden, CO 80403
fred.robinson at sipfusion.com
office: 303.642.8061
mobile: 720.272.5201





-----Original Message-----
From: lug-admin at lug.boulder.co.us [mailto:lug-admin at lug.boulder.co.us]On
Behalf Of Doug Shaw
Sent: Monday, March 18, 2002 11:20 PM
To: lug at lug.boulder.co.us
Subject: Re: [lug] NIC Question (full duplex)


At 09:01 PM 3/18/02, Jeffrey Siegal wrote:

>Some cards (many newer cards) will do the swap automatically, so you can
>use a regular cable.  And you won't have *any* collsions, since each
>system will transmit over a separate pair of wires.

This is full-duplex; any card that runs in or autodetects this
functionality in its network connection should be able to do
this.  Half-duplex - even on the same card - puts you back to transmitting
on 1,2 and receiving on 3,6, meaning you'll need to a crossover cable if
you're running at half duplex.

Any "modern" card that does FD will almost certainly do HD as well.  This
means that unless you manually configure these cards to FD, they had better
both autodetect it correctly or your machine-to-machine link won't work at
all.

Doug   (not a fan of autodetection)


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