achieving 19200 baud on the UNIX PC

[Karl Swartz]

In article <1060 at umbc3.UMD.EDU> alex at umbc3.UMD.EDU (Alex S. Crain) writes:
>	I would be interested to see if two 3b1's could sustain 19Kb (or
>higher) file transfers (uucp or whatever). Anybody ever tried?

I've had two different machines connected to ditka at 19200 for
uucp transfers, running HDB.  One is formtek, a Sun-3/180 at my
office, talking via Telebit TrailBlazers running at 19200 on both
sides.  Large news batches regularly show 1300-1400 bytes/second
as reported in xferstats.  (I also talk to a few out-of-state
TrailBlazers; these times aren't quite as good but are still in
respectable range.)

The other case was a hardwire to royko, a 0.5 MB 7300, also with
HDB.  Here, I only saw about 800-900 bytes/second.

Looks like the serial port can handle the speed, but the machine
can't really keep up with it.

-- 
Karl Swartz		|UUCP	{emoryu1,pacbell,decvax!formtek}!ditka!kls
1-412/937-4930 office	|	{pitt,psuvax1}!idis!formtek!ditka!kls
			|BIX	kswartz
"I never let my schooling get in the way of my education."  (Twain)