Path: utzoo!utgpu!news-server.csri.toronto.edu!rutgers!cs.utexas.edu!rosen
From: rosen@cs.utexas.edu (Eric Carl Rosen)
Newsgroups: comp.sys.mac.comm
Subject: Re: Z-Term, Unix, and Mac
Summary: Zmodem problems/solutions
Keywords: Zmodem
Message-ID: <1052@levelland.cs.utexas.edu>
Date: 22 Jan 91 02:36:38 GMT
References: <4168@mentor.cc.purdue.edu> <1991Jan22.005845.10126@maverick.ksu.ksu.edu>
Followup-To: comp.sys.mac.comm
Distribution: usa
Organization: Dept of Computer Sciences, UTexas, Austin
Lines: 27

If you are experiencing recurring problems with a Zmodem transfer, I suggest
the following advice:

	o	confirm that you have an 8-bit connection to your host
		machine. If you are rlogin-ing somewhere, use the -8
		option to force an 8-bit connection.

	o	disable any software flow control; XON/XOFF is an example
		of software flow control that should be disabled. Similarly,
		disable any pre or post-processing of control characters
		and the like.

		If you are having handshaking problems, use hardware
		handshaking. Otherwise, use no flow control for the best
		average performance.

	o	if your problems seem to be related to line noise, and you
		can control the size of the zmodem blocks on the SENDING
		side, try smaller blocks

	o	if transfers seem to never get started, chances are you do
		not have an 8-bit connection and/or software handshaking is
		enabled

Hope this helps. 

--Eric