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000108_news@columbia.edu _Tue Oct 31 09:40:46 2000.msg
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From: fdc@columbia.edu (Frank da Cruz)
Subject: Re: Kermit input overruns
Date: 31 Oct 2000 14:22:13 GMT
Organization: Columbia University
Message-ID: <8tmkil$12u$1@newsmaster.cc.columbia.edu>
To: kermit.misc@columbia.edu
In article <8tlsnq$51r$1@nnrp1.deja.com>, <mickwilson@my-deja.com> wrote:
: I am linking via null modem cable a Win98 laptop to Redhat Linux 6.0
: laptap. File transfers work, but only after a fashion and with
: considerable delay. I seek help to remedy this.
:
: Every 10-20 packets there is an "input overrun" error displayed, a pause
: of 5-10 seconds, then resumed transfer.
:
: The windows end is running kermit-for-DOS (no, I haven't yet ordered
: Kermit-for-9*).
:
That's usually the solution to problems like these.
: The unix end is running C-kermit on line /dev/ttyS0.
: Line parameters are xon/xoff, 8-none-1. The overruns occur at all speed
: between 9600 and 115,200 but seem to take longer to recover at lower
: speeds.
:
First, try using RTS/CTS instead of Xon/Xoff (on both ends) if your cable
allows it (you need a full null-modem cable, with RTS and CTS cross-
connected). If that doesn't help, then you'll need the native Windows
version of Kermit:
http://www.columbia.edu/kermit/k95.html
: I was a frequent kermit user in a previous life, but am new to unix. Is
: there something I should be trying to tweak re packet or window sizes?
: flow control?
:
Our first advice is always to run the most appropriate and latest versions
of the software on both ends. Manuals help too; the C-Kermit manual (which
also is included with K95) has whole sections on flow control, cable wiring,
and troubleshooting.
- Frank