Article View: comp.sys.atari.st
Article #6582Re: What Kermit/UNITERM bugs?
From: PAUL BARTHOLDI
Date: Tue, 05 Dec 1989 08:52
Date: Tue, 05 Dec 1989 08:52
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2780 bytes
In article <8912010813.AA04349@ucbvax.Berkeley.EDU>, 01659@AECLCR.BITNET (Greg Csullog) writes:
> One netter mentioned problems with UNITERM's Kermit. ...
> The ONLY Kermit I trust is UNITERM's so WHAT problems are there?
I can confirm that I do use UNITERM (2.0e) Kermit almost dayly in binary mode
with the following counterparts : Vax-vms Kermit32, Vax-vms CKermit, IBM vm-cms
Kermit, Sun unix Kermit and PC Kermit 2.32 . My Atari 1040ST is connected at
19.2 Kbps to an Ethernet pad (Bridge cs/100) with XON/XOFF protocol. The line
to the IBM goes through the vax, then through a x.25 line to a central pad that
connects me to the 3090 ... From experience, I have set the packet length to
1024 (reduced to 96 max by CKermit ...) and use the CRC for error detection.
Depending on various conditions I get no errors or a few retries, but never got
locked or with unreadable file (even a single error would be rejected by the
dearcing programs). The mean transfer rate is almost 1KB/s with the Vax (780),
while it's almost 4 times slower with the IBM due to the many intermediates
nodes, but the error rate is similar. I found the 1KB packets giving the best
throughput. A 2KB is even better, but only if the retries are very rare.
I never the less remember a discussion about a year ago (or more ?) between
Simon Poole and ? concerning binary transmission. After reading all arguments,
i was convinced that UNITERM worked the right way, although the documentation
could have been interpreted differently. The fact that I never had any
problem with the 5 different versions above confirms this 'experimentaly'
I think (not a proof !)
regards and Thanks to Simon if he reads this ! Paul
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<467@obs.unige.ch>Path:
arc1-ca.pugleaf.net!utzoo!utgpu!jarvis.csri.toronto.edu!cs.utexas.edu!uunet!mcsun!cernvax!ethz!chx400!ugun2b!ugobs!barthoReferences:
<8912010813.AA04349@ucbvax.Berkeley.EDU>Show Full Headers
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Path: arc1-ca.pugleaf.net!utzoo!utgpu!jarvis.csri.toronto.edu!cs.utexas.edu!uunet!mcsun!cernvax!ethz!chx400!ugun2b!ugobs!bartho From: bartho@obs.unige.ch (PAUL BARTHOLDI) Newsgroups: comp.sys.atari.st Subject: Re: What Kermit/UNITERM bugs? Message-ID: <467@obs.unige.ch> Date: 5 Dec 89 08:52:46 GMT References: <8912010813.AA04349@ucbvax.Berkeley.EDU> Organization: University of Geneva, Switzerland Lines: 36