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Date: Sun, 03 Jun 2007 11:46:15 -0400
To: Pang <freebsd@laws.ms>
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Cc: freebsd-questions@freebsd.org
Subject: Re: Switching between half-duplex and full duplex
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At 07:01 AM 6/3/2007, you wrote:
>  I have just installed FreeBSD and found that the nic em0 is set to 
> half-duplex only. Could anyone tell me how I can switch it to full-duplex?
>        media: Ethernet autoselect (10baseT/UTP <half-duplex>)

You should be more concerned that it is only at 10Mb.  I'm not sure 
if the old 10bT protocol even supported full duplex.  You definitely 
need a switch rather than hub to run full duplex, and 100Mb or better 
may also be required.  Once you have that it should auto-detect and 
enable full duplex, if your other hardware is capable.

   -RW