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From: ast@cs.vu.nl (Andy Tanenbaum)
Newsgroups: comp.os.minix
Subject: kermit
Message-ID: <1594@ast.cs.vu.nl>
Date: 30 Oct 88 12:38:30 GMT
Sender: ast@cs.vu.nl
Reply-To: ast@cs.vu.nl (Andy Tanenbaum)
Organization: VU Informatica, Amsterdam
Lines: 26


I have installed the kermit posted by Charles Hedrick on MINIX, but am having
endless problems with it.  The connect command, to do a remote login (like
my term program), works ok.  However, when I start up kermit on the remote
side (a SUN) in server mode, escape back to MINIX, and start sending, it goes
ok for a while, then it sort of dies.  Since I am SENDING from the MINIX side,
this can't be due to lack of buffer space, and I think an unloaded SUN 3/60
workstation ought to be able to collect characters at 1200 baud without
any trouble.

I also notice that initially, say the first 30,000 characters or so, the modem
lights show a burst of transmission from MINIX for about a second (90 bytes at
1200 baud = 750 msec), then a very short receive burst (probably an ACK), then
immediately another transmit, another receive, etc.  Looks fine.  After some
minutes, this pattern changes and kermit starts typing T% instead of ".".
The new pattern has a burst of transmission, but as soon as the transmission
starts, SUN kermit sends something back, and whatever it is, it is longer than
what MINIX is sending.  Normally the SUN side waits until the transmission from
MINIX is done.  In this mode it is sending something else, long, and immediately.
I have turned on the various kermit logging facilities, but I can't make any
sense out of the output.

Is there anyone who understands kermit well enough to know what is going on
here?  Could other people please post their experiences with kermit on MINIX?

Andy Tanenbaum (ast@cs.vu.nl)