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- Newsgroups: comp.dcom.modems
- Path: sparky!uunet!think.com!spool.mu.edu!darwin.sura.net!blaze.cs.jhu.edu!syzygy.cs.jhu.edu!swiet
- From: swiet@syzygy.cs.jhu.edu (Alexander Swietlicki)
- Subject: Re: NeXT/Supra modem performance question
- Message-ID: <1992Nov10.105748.25560@blaze.cs.jhu.edu>
- Sender: news@blaze.cs.jhu.edu (Usenet news system)
- Organization: Johns Hopkins Computer Science Department, Baltimore, MD
- References: <1992Nov7.180909.9732@augustana.ab.ca> <1992Nov9.072120.17438@blaze.cs.jhu.edu> <1992Nov9.161208.202@hsh.com>
- Date: Tue, 10 Nov 1992 10:57:48 GMT
- Lines: 22
-
- In article <1992Nov9.161208.202@hsh.com> lee@hsh.com (Lee Havemann) writes:
- >
- >We have found that a set window 3, set block 2 give us the best
- >transmission speed. It as almost as fast as zmodem.
- >(We use 5A(185) BETA-7, so you might want to get a newer version :-)
- >
-
- Just downloaded and compiled the latest and greatest kermit on
- both machines. Throughput is indeed improved with sliding windows, but
- is still a few hundred cps behind zmodem. :) The reason it didn't work
- before was that the 4E version didn't support it! While throughput is
- not as wonderful as that of sz, I made a nice discovery. Kermit's sliding
- windows appears to work over telnet, whereas zmodem gets infinite timeouts.
- Over a telnet, the optimum setting seems to be set window 2 and packet
- size 625. (anything larger generates errors)
- Anyone know what causes these problems when sz'ing or kermit'ing
- across networks?
-
- Alex
-
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-