OT: Effective Speed of 10BaseT

From: Allison J Parent <allisonp_at_world.std.com>
Date: Sun Nov 14 16:29:50 1999

<DEC 3000/300LX that just isn't giveing me the kind of Xfer rates I expect,
<and I'm wondering/suspecting there is a problem with my calculations.
<Using a pair of PDF's totalling 24.6MB as my test I'm getting 8.34MB/Min,
<yet I'd expect it to be closer to 72MB/Min.

140kbytes/sec is slow. I'd expect much better than that. I'd expect better
than that using LAT/LAP/DECnet out of a VS2000. Burst rate for 10bT should
hit 1.25mbytes/sec but, averages in the sub 400kbytes/sec range are more
likely. If the eithernet is busy it can drop more.

<The machine on the other end is a G4/450 PowerMac with 100BaseT, plugged
<into a 10/100Mbit switch, the DEC3000 is plugged into a 10/100Mbit hub
<which in turn is connected to the switch.

<Of course part of this could be the 21064/125 processor, and part of it
<could be the fact I'm using Appletalk.

It's the appletalk. Try TCP/IP. It's certainly not the cpu you have plenty
of speed there.

Received on Sun Nov 14 1999 - 16:29:50 GMT

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