OT: Effective Speed of 10BaseT

From: Eric Smith <eric_at_brouhaha.com>
Date: Sun Nov 14 16:10:34 1999

pete_at_dunnington.u-net.com (Pete Turnbull) wrote:
> But are you running over 10baseT (or 10base2) all the way? Zane's system
> might take a fair performance hit because either the hub or the switch is
> buffering every packet and retransmitting it.

Oh, and I forgot to mention that a true "hub" (which in Ethernet terms
is just a multiport repeater) does not buffer any packets.

The newer so-called Dual Speed Hubs incorporate a two-port switch (which
in Ethernet terms is a bridge). They don't buffer packets between same-speed
hosts, but will buffer packets between 10 and 100 Mbps hosts.

Still, with proper protocols this will cause no noticable performance
penalty for bulk transfers.
Received on Sun Nov 14 1999 - 16:10:34 GMT