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000323_fdc@watsun.cc.columbia.edu_Fri Aug 17 14:23:38 EDT 2001.msg
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Article: 12689 of comp.protocols.kermit.misc
Path: newsmaster.cc.columbia.edu!watsun.cc.columbia.edu!fdc
From: fdc@watsun.cc.columbia.edu (Frank da Cruz)
Newsgroups: comp.protocols.kermit.misc
Subject: Re: Error ttsetspeed failed:87
Date: 17 Aug 2001 18:22:01 GMT
Organization: Columbia University
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In article <jzcf7.319673$T97.36240736@typhoon.nyroc.rr.com>,
John Hill <jhill@sawmillmanager.com> wrote:
: I have a DOS handheld running kermit 3.15 dialing into a Windows 2000
: professional host running K95 ver 1.1.20. The host waits for a call (using
: the answer command) and then enters server mode. The DOS unit then changes
: directories and sends files to the host.
:
: I am having problems with this however. When certain DOS units that call in
: the message "ttsetspeed failed:87" appears on the host screen. On other
: units I get the message "Entering server mode" but it never proceeds any
: further.
:
If you can catch it in the act with a debug log, please send the log to
kermit-support@columbia.edu.
: The script running on the server is as follows (this is not exact but
: contains the important commands, if you need the exact script I can get
: that):
:
: set tapi line <MODEM TYPE>
: set modem type tapi
: set quiet on
: set file collision overwrite
: set file incomplete discard
: enable host
: enable delete
: enable bye
: enable finish
: set block-check 3
: set rec pack 500
: set send pack 500
: set buffers 280000
:
This command has no effect in Kermit 95 (but it does no harm either).
: set window 10
: set speed 9600
:
Any special reason for such a low speed? If all the modems involved
are relatively modern error-correcting, data-compressing models, then
you should be able use speeds of 57600bps or higher with RTS/CTS
(hardware) flow control.
: set file type binary
: set carrier-watch off
:
This is probably a mistake. You want Kermit to monitor the carrier
signal. Otherwise if a call disconnects, Kermit won't know it, and then
the next caller will get the previous caller's session. Note that the
ANSWER command knows that there is no carrier while it is waiting for a
phone call, so you don't have to "set carrier-watch off" just because you
are using the ANSWER command.
: cd /husky
: answer
: server
:
: Any help would be greatly appreciated.
:
What kind of modem is it? If it's a modern modem, then presumably it
is configured to keep its interface speed constant. But if it didn't,
that could explain the problems you are seeing.
- Frank