Path: utzoo!mnetor!uunet!husc6!bloom-beacon!mit-eddie!uw-beaver!tektronix!reed!omen!caf
From: caf@omen.UUCP (Chuck Forsberg WA7KGX)
Newsgroups: comp.sys.ibm.pc
Subject: Re: DSZ downloads
Message-ID: <675@omen.UUCP>
Date: 5 May 88 20:30:15 GMT
References: <6208@swan.ulowell.edu> <1922@bgsuvax.UUCP> <6381@swan.ulowell.edu> <720@taurus.BITNET>
Reply-To: caf@omen.UUCP (Chuck Forsberg WA7KGX)
Organization: Omen Technology Inc, Portland Oregon
Lines: 35

In article <720@taurus.BITNET> <ofer%TAURUS.BITNET@CUNYVM.CUNY.EDU> writes:
:
:I tried using the DSZ0414 to download from BIX via Tymnet calling from a
:PAD in Israel that only allows 7 bit even parity and it didn't work.
:The pathnames passed ok but no data packets.
:The DSZ software doesn't say how to work on 7 bit paths.
:
:Procomm 2.4.2 , on the other hand performed wonderfully...
:Over half a meg of binaries using YMODEM with no error.

XMODEM and its variants, including the XMODEM-1k on BIS mislabelled as
YMODEM, require an 8 bit path to function.

The BIX ZMODEM support on BIX is still incomplete.  Apparently it does
not set a few of the foreign PADs to 8 bit transparency as does the
XMODEM program.  (8 bit transparency in the U.S. and Belgium works
properly using the defaults.)

Ths BIX ZMODEM implementation also does not monitor the reverse channel
for error packets, but this can be worked around by setting the DSZ
zmodem "l" parameter to 8192 or 4096.

There are a number of messages in the BIS protocols/general conference
detailing the workarounds.  If you need to download more than a few
short files, the improvement in throughout from using ZMODEM over
XMODEM-1k is well worth the bother of reading the messages.

BIX have been having problems with their Pyramid crashing, and have
been distracted from fixing the known bugs in their ZMODEM support.

Chuck Forsberg WA7KGX          ...!tektronix!reed!omen!caf 
Author of YMODEM, ZMODEM, Professional-YAM, ZCOMM, and DSZ
  Omen Technology Inc    "The High Reliability Software"
17505-V NW Sauvie IS RD   Portland OR 97231   503-621-3406
TeleGodzilla BBS: 621-3746   CIS: 70007,2304    Genie: CAF