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000165_news@newsmaster….columbia.edu _Fri Aug 15 09:36:29 1997.msg
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From: jaltman@watsun.cc.columbia.edu (Jeffrey Altman)
Newsgroups: comp.protocols.kermit.misc
Subject: Re: Help: Telnet with C-Kermit 5A(191) for OS/2
Date: 15 Aug 1997 13:36:25 GMT
Organization: Columbia University
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Message-ID: <5t1m0p$jv7$1@apakabar.cc.columbia.edu>
References: <871647854.22740@dejanews.com>
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In article <871647854.22740@dejanews.com>, <bandyo@wam.umd.edu> wrote:
: I am trying to run a data query / report writer application remotely by
: telneting to rtk.net which is a menu driven site also accessible through
: their BBS number. Here is the problem. I can navigate within the menu
: system fine but inside the application (data query) sooner or later an
: arrow key stroke acts like as if I have hit escape key and takes me to
: previous menu, or if at the first menu, then out of the application!
:
: If I use C-Kermit to dial directly into the BBS (in stead of Telnet
: through internet), this problem goes away. I am using vt100 emulation in
: both telnet and direct dial. What am I doing wrong?
The problem is that the roundtrip time for a packet to be sent and
received by the BBS via Telnet is greater than the Escape key
detection timeout built into the BBS. This is a poor design
architecture for the BBS (and other apps) since the ESC char has very
special meaning to a VTxxx or other ANSI x3.64-1979 based terminal.
You would have exactly the same problem running a real terminal hooked
to a terminal server.
Kermit-95 for OS/2 is less susceptible to this symptom than C-Kermit
5a(191) as it tries to force the entire Escape sequence to be sent in
a single IP packet. See http://www.columbia.edu/kermit/os2.html for
more information.
Jeffrey Altman * Sr.Software Designer * Kermit-95 for Win32 and OS/2
The Kermit Project * Columbia University
612 West 115th St #716 * New York, NY * 10025 * (212) 854-1344
http://www.columbia.edu/kermit/k95.html * kermit-support@columbia.edu