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000006_dold@email.rahul.net_Sat Sep 22 13:48:04 EDT 2001.msg
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Article: 12813 of comp.protocols.kermit.misc
Path: newsmaster.cc.columbia.edu!phl-feed.news.verio.net!news.verio.net!mars.njcc.com!yellow.newsread.com!netaxs.com!newsread.com!feeder.qis.net!newsfeed.direct.ca!look.ca!sfo2-feed1.news.digex.net!intermedia!news-out.spamkiller.net!propagator-la!news-in-la.newsfeeds.com!news-in.superfeed.net!feedwest.news.agis.net!us.telia.net!news.mainstreet.net!bug.rahul.net!samba.rahul.net!rahul.net!a2i!dold.a2i!dold
From: dold@20.usenet.us.com
Newsgroups: comp.unix.solaris,comp.protocols.kermit.misc
Subject: Re: A Unix Tip problem
Date: 22 Sep 2001 16:39:55 GMT
Organization: Wintercreek Data
Lines: 22
Message-ID: <9oiess$heh$1@samba.rahul.net>
References: <113ed076.0109070921.45c34569@posting.google.com> <9nb0g4$1qh$0@pita.alt.net> <1000398035.902707@blake.timetraveller.org> <9nqp4i$hau$1@newsmaster.cc.columbia.edu> <1001172990.577070@blake.timetraveller.org>
Reply-To: dold@email.rahul.net
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Xref: newsmaster.cc.columbia.edu comp.unix.solaris:351058 comp.protocols.kermit.misc:12813
In comp.protocols.kermit.misc Robert Brockway <robert@timetraveller.org> wrote:
: I did prefix my statement with "Before ppp/slip" :)
: Why? Have any of the mentioned protocols (X-Modem, Z-Modem, or Kermit)
: been redrafted since then? They're still the same protocols they were.
: You canna change the laws of physics :)
You must have missed my post on the subject. Kermit used to be delivered
in a very conservative default mode, with small packets, and no sliding
windows. This yielded low performance, but performance that would work on
lines where ZModem would lock up and require reboots.
Since that time, the Kermit defaults were adjusted for better speed, and
became self correcting so that they still work on poor quality lines.
Chuck Forsberg stopped improving ZModem many years ago.
--
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Clarence A Dold - dold@email.rahul.net
- San Jose & Pope Valley (Napa County) CA.