I was able to crank my serial port up to 57.6k on my SE/30 on a direct
serial connection to my powerbook. Thus, it was a pure 57.6k, not a
compressed 19.2 or 28.8. I got about 50kbps through it (via ftp, running
pppd & MacPPP on the line), and that's pure data. Once you add in
overhead, I must have been pretty close to 100%. 

MacBSD wouldn't let me chose a data rate higher than 57600. Although the 
man page claims that you can pick ANY rate (i.e. other thatn common 
values like 28800, 38400, etc), pppd would only let me pick the common 
values, and the highest it would let me pick was 57600 (or maybe it was 
one higher, like 76800). Can anyone comment on this? Is it just a 
question of what speeds are defined, or did the implementors stop at that 
speed for a more pressing reason?

-1LT Avram Dorfman
HQ USAF Network Management
permanent email address: avram@pobox.com

"Methodological observation of the sociometrical behavior tendencies of 
prematurated isolates indicates that a causal relationship exists between 
groundward tropism and lachrimatory behavior forms."

On Sun, 14 Jul 1996, Michael L. Kornegay wrote:

> Hi,
> 
> How is the serial driver in the Mac version of NetBSD on an older
> Macintosh (such as the SE/30)?  
> 
> What is the recommended maximum modem to computer serial port 
> speed for such a configuration?  
> 
> Does hardware flow control function acceptably on such a system?
> 
> Thanks,
> 
> ___________________
> Michael L. Kornegay
> Internet: mlk@mlksys.atl.ga.us
>