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PCP&Z.TXT
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1988-07-07
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55 lines
The following message from MicroSellar sysop Mark Rapp describes a
possible fix for the network problems some PCP users have had when
calling the HST 9600 baud modems.
A definition of the "-w" and "z pb1" parameters of DSZ module follow
the message.
---------------------------------------------------------------------
Date: 07-05-88 (18:24) Number: 11846
To: ALL Refer#: NONE
From: SYSOP Read: (N/A)
Subj: HST'S/DSZ/PCP Status: PUBLIC MESSAGE
A US Robotics HST 9600 baud modem is now online. Since the comm port is
being held open at 19,200, and PC Pursuit's congestion adversely affects
flow control, please modify your DSZ command line for SENDS to:
dsz ha both z pb1 sz -w (Note the "-w")
If your modem does not have a built-in buffer, you may need to remove
the "ha both" paramater. Without the addition of "-w", you will NOT be
able to transmit files to this system (if you are using PC Pursuit).
To download, you need do nothing on your end, except choose the "P"
protocol, now available, which is a modified Zmodem for PC Pursuit.
Please let me know how this works out for those of you having
difficulties here the last few days.
---
* Via ProEdit 2.7ß5
----------------------------------------------------------------------
sz [-abefnprtY+y] [-w[N]] file ... (ZMODEM send)
^^^^^^^
w = 0
w If non 0, restrict the ZMODEM transmitted window to the specified
number of bytes. Setting this parameter to N requests
acknowledgements from the receiver every N/4 characters. ZCOMM then
waits for acknowledgements from the receiver whenever it has sent N
more characters than it has received acknowledgements for. This
parameter is useful with networks with defective flow control, and
with networks that store an excessive number of characters in
transit.
b = 0
b If non zero, ZMODEM sends a break when it is sending a file and
receives a retransmission request. This mode of operation may be
used with high speed modems to clear unwanted characters from the
modem's buffer during error recovery. Usually, the modem must be
given a configuration command to set the proper action to take when
receiving a break signal.