>
>   I would say that your simplest option here is to replace the hubs
> with switches.  If you make them 10/100 switches (rather than just
> 10), then you can further speed up specific stations by upgrading to
> a 10/100 NIC.  But going from hubs to switches should eliminate
> collisions, offering better network performance even to stations that
> stay on 10 Mbps NICs.  They'll see even more improvement if they can
> be set for half duplex....

With a switch and half-duplex he'll see improvement, but for the
best improvement he'll need to have his NIC's set for full-duplex.  That
way there's a full 20 Mbps  total bandwidth usage (10 Mbps send/10 Mbps
recieve,
at the same time).

--Patrick Black
CCNA certified.

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