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000433_fdc@panix.com_Sat Sep 2 14:29:32 2006.msg
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Path: reader2.panix.com!reader1.panix.com!panix!not-for-mail
From: Frank da Cruz <fdc@panix.com>
Newsgroups: comp.protocols.kermit.misc
Subject: Re: Unix Async Server
Date: Sat, 2 Sep 2006 18:28:25 +0000 (UTC)
Organization: PANIX Public Access Internet and UNIX, NYC
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Message-ID: <slrnefjja9.8ls.fdc@panix2.panix.com>
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Xref: panix comp.protocols.kermit.misc:15560
On 2006-09-01, malone <malonespam@cox.net> wrote:
: I am having difficulties transferring files to a Unix Async Server
: using Kermit 95 2.1.3 and any assistance would really be appreciated.
:
: Here is the situation:
: I connect to two separate Unix Async Servers and attempt to upload at
: least 3 files a week.
:
Using Kermit protocol?
: From time to time I can transfer files correctly
: but the odds of that happening are not good. I tried using the TAPI
: configurations in K95 to control the connection process but I must
: still be missing something since the transmission soon after the file
: transfer starts. I also tried to not use TAPI configuration at all and
: let K95 to control the connection. Unfortunately, that does not work
: either.
:
Are you using a modem, or is it a direct connection?
What does "show communications" say about flow control? You should be
using RTS/CTS if the modem supports it, or if it is a direct connection,
if the async server supports it and your cable is a true Null Modem cable
with its RTS and CTS wires crossed.
: Nothing to brag about but I can transfer the files successfully using
: HyperTerminal. Why would I be able to transmit the file using HT but
: not K95?
:
Because Hyperterminal always uses the slowest possible Kermit protocol
configuration -- short packets, no sliding windows, etc. You can test
this theory by giving the "robust" command to Kermit before uploading.
This tells Kermit to use very short packets and disables sliding windows,
among other things, making it sort of like HyperTerminal.
But better to get best kind of flow control enabled. RTS/CTS is best,
if the cable and the other devices support it too, otherwise Xon/Xoff.
The device or computer to which Kermit is directly connected (either
the modem or the async server) must be configured for the same kind of
flow control.
If this doesn't help, then the next question would be: exactly what is
the async server, and what software are you running on it to receive
the files?
- Frank