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From: rlarson2@uxh.cso.uiuc.edu (Robert S larson)
Newsgroups: comp.unix.msdos
Subject: Re: Problems with rzsz9002.tar-z (Zmodem package)
Keywords: sz, rz, zmodem, download, upload
Message-ID: <1990Dec18.160704.3615@ux1.cso.uiuc.edu>
Date: 18 Dec 90 16:07:04 GMT
References: <5053@dnlunx.pttrnl.nl>
Sender: news@ux1.cso.uiuc.edu (News)
Organization: University of Illinois at Urbana
Lines: 21

henkf@dnlunx.pttrnl.nl (Henk Fictorie) writes:

>I'm having problems with the sz, rz (zmodem send/receive) programs
>from the rzsz9002 package.  I'm trying to transfer files from our Sun
>to my pc at home.
>When I try to send a file from the Sun to the pc, only the first 1024
>bytes arrive. After that, the PC reports Timeouts and I have to Abort
>the transfer. When I try to receive a file on the Sun from the pc, the
>pc program cannot even initiate the transfer.
>I can use Xmodem and Ymodem from the same package without any problems.

I used to experience similar problems with an identical configuration.
What I finally got to work was to use the command:

       sz -w 1024 filename
This seems to result in 512 byte packets being rather than 1024 byte
packets. Performance only decreased slightly; I now get about 220 cps
at 2400 baud, whereas zmodem should get 230 (with a clean phone line).
Still beats the hell out of kermit.