[Prev][Next][Index]

Re: sz transfer rate




On Sun, 25 Feb 1996, Ilan Finci wrote:

> When trying to download somthing using sz (I'm running seyon) - everything
> seems to be ok and I get reasnoble rate (~1600 BPS)
> 
> When trying to upload a file (to the same place,in the same session) I
> gat a rate of ~400 BPS and the numbers are jumping back and forward all
> the time. It also seems (not for sure) that binary data isn't transferred
> right (passed a gziped file and got crc error when opening it).

Which version of sz/rz are you using?
Which kernel version are you using?
How is your serial port configured (what setserial parameters are in effect)?

I noticed that the problem may have to do with incompatibility of the 
freeware zmodem implementation bundled in Slackware 3.0 (kernel version 
1.2.13) with the Oman version of sz/rz implementation which is shareware 
and may be used by the Internet service providers.

Also, my modem had problems when configured as 16550A, but when I 
reconfigured it as 16450 (with hi_speed), connections became reliable.

Presently, I use FTP over SLIP/PPP rather than sz/rz as my file transfer 
method.
                                            --- Omer
            Internet E-mail:  xlacha1@wizard.weizmann.ac.il
                              omerz@actcom.co.il
              WWW home page:  http://www.weizmann.ac.il/~xlacha1/
       DEAF-L FAQ home page:  http://www.weizmann.ac.il/deaf-info/