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000309_news@newsmaster….columbia.edu _Fri Mar 20 11:01:30 1998.msg
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From: fdc@watsun.cc.columbia.edu (Frank da Cruz)
Newsgroups: comp.protocols.kermit.misc
Subject: Re: is this a kermit problem?
Date: 20 Mar 1998 16:01:27 GMT
Organization: Columbia University
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In article <890356581.7500@iris.nyx.net>,
arthur wouk <awouk@syzygy.nyx.net> wrote:
: running solaris2.4 on a sparc2, with the lates version of C-Kermit
: (6.0?). i have set up kermit and the port at 38,400. i am dialing in
: to an ISP which supports up to 56k. i am using a suprafax 28.4k
: modem.
:
: i connect ok, but at 26k. then the two modems go into a mating dance
: during which i seem to be able to get only a few characters at a time
: into thesystem.
:
The characters that do arrive: are they the ones you expect?
: the modem keeps cycling through mysterious modes, till
: eventually, either i lose carrier, or they two modems agree on 28.4k,
: after which everything is fine. this wait can take up to several
: minutes.
:
: anyone have any ideas as to how to shorten this speed matching dance?
:
This is a matter between the two modems and has nothing to do with Kermit,
except insofar as it might be affected by changing the initialization string
given to the modem by Kermit. But you didn't say how you were using the
modem. Did you "set modem type supra", "set speed 38400", and the "dial"?
The initialization commands used by Kermit in the dialing process are fairly
standard, and work in most cases. But as you know, it takes two modems to
make a connection. And modems are becoming more and more complex, and
differences between brands and models result in ever more scenarious like
the one you've described. The procedure for negotiating a mutually agreeable
modulation speed and set of protocols is, indeed, working, but it's taking
longer than you want. To improve the situation, you'll need to:
a. Read your modem manual in depth and experiment with different settings.
b. Call different phone numbers and see if you can narrow down the problem.
Does the problem occur only when you call a particular number, or does
it always happen?
c. If you think you have a complaint about your modem, contact the tech
support people at the modem company.
d. If you think the problem is in the telephone connection, contact the
phone company.
- Frank