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Re: Doubling 100MBit ethernet by splitting the cable



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On Wed, May 21, 2003 at 05:35:52PM +0200, Grzegorz B. Prokopski wrote:
> Long time ago I've read that 100mbit ethernet uses only 2 pairs
> which leaves half of wires unused and thus when there's such a
> need - these can be used to create second 100mbit connection
> on the same cable (and connect second computer w/o the need of
> another cable).

You're thinking 10Mbps.  100Mbps uses four pairs.

> I've googled quite much and I am sure that's possible (with all
> doubts that it's non-standard solution etc.) [0]. But I still
> can't find good description (with images/asciiart preferred) of
> how to do this exactly?

Don't try it if you've never built your own cables or you don't
understand the pinouts.  Otherwise, get creative and use the unused
two pairs and fork the cable on both sides and give it a shot.  This
is *way* more effort and doesn't work as reliably as getting a real
second cable, though.  Don't bother unless you're looking for
something to just mess with people.

- -- 
 .''`.     Baloo Ursidae <baloo@ursine.dyndns.org>
: :'  :    proud Debian admin and user
`. `'`
  `-  Debian - when you have better things to do than fix a system
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