Date: Tue, 16 Jan 1996 10:17:42 -0700 (MST) From: Barnacle Wes <wes@intele.net> To: questions@freebsd.org Subject: Re: delays in ppp solved Message-ID: <199601161717.KAA08693@intele.net>
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On Mon, 15 Jan 1996, Samy Touati wrote:
% The problem was the VJ compression.
% The site where I was connecting seems to support the VJ compression but
% for an unknown reason there was a buffering problem (probably due to a
% conflict between the modem compression scheme and the VJ one). After
% disabling the compression for the ppp driver everything worked like a charm.
On Mon, 15 Jan 1996, Doug White replied:
> Ah. That's the second odd conflict between VJ compression and modems
> that I've seen. I had a problem using OS/2's SLIP with the University
> dialup pool, disabling VJ compression solved it and I have no idea why. :)
Aha! When I first started with SLIP, then PPP, one of the cardinal
rules given to me by Terry Lambert was "turn off modem compression
completely." Reasons for this edict I've garnered over the years include:
3. Modem compression, as you have noticed, often interferes with VJ
compression used in SLIP and PPP implementations.
2. Modem compression often interferes with, and lengthens transfer of,
compressed files such as .gz and .jpg.
1. Modem compression slows down turn-around time -- terrible for
interactive sessions.
Anyone else care to expand this to a "Top Ten"?
--
Wes Peters | Yes I am a pirate, two hundred years too late
Softweyr | The cannons don't thunder, there's nothing to plunder
Consulting | I'm an over forty victim of fate...
wes@intele.net | Jimmy Buffet
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