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From: news@m2xenix.psg.com (Randy Bush)
Newsgroups: comp.dcom.modems
Subject: Re: PPP and V.32bis/V.42bis (was Re: Uses of V.42 (bis?) data compression)
Message-ID: <1991Apr14.161932.10490@m2xenix.psg.com>
Date: 14 Apr 91 16:19:32 GMT
References: <10334@pitt.UUCP> <3908.280363d4@hayes.uucp> <1991Apr12.132116.11546@hobbit.gandalf.ca> <1991Apr13.070324.10288@wimsey.bc.ca>
Organization: Pacific Systems Group, Portland Oregon US
Lines: 13

Stuart, timings in your measurements do not agree with ours down here in the
Portland SLIP metronet, RAINet.  Or were your figures Imperial CPS?

For a large text file, with V.42bis over straight V.32, we get 1.7kcps using
PC-Route with serial ports locked at 19.2kb and Intel 9600EX modems.

We believe that the limiting factor here is the serial port speed, as 1.7cps is
about 19.2 minus (non-compressed) headers.

We're planning to experiment with locking the ports at 38.4 when we get some
faster PC-Router motherboards, especially as we move towards V.32bis.
-- 
Randy Bush  / news@psg.com  / ..!uunet!m2xenix!news