Slow transfer with 21140 card

Robert G. Brown rgb@phy.duke.edu
Wed Jul 22 16:23:39 1998


On Wed, 22 Jul 1998, Hannu Krosing wrote:

> You are probably right. But are the switches _always_ full-duplex ?

I'm not sure, but I thought so.  At least, I don't recall looking at
specs on a switch that wasn't.  However, it might well be that there
are really cheap switches that either aren't full duplex or (more
likely) don't have a full 100 Mbps of bandwidth per port and hence
cannot support full duplex connections between all possible pairs of
ports at once.  Somebody out there will know for sure.  Somebody
always does..;-)

   rgb

Robert G. Brown	                       http://www.phy.duke.edu/~rgb/
Duke University Dept. of Physics, Box 90305
Durham, N.C. 27708-0305
Phone: 1-919-660-2567  Fax: 919-660-2525     email:rgb@phy.duke.edu