Date: Wed, 17 Jan 1996 14:05:43 -0500 (EST) From: Samy Touati <lmcsato@lmc.ericsson.se> To: Barnacle Wes <wes@intele.net> Cc: questions@FreeBSD.org Subject: Re: delays in ppp solved Message-ID: <Pine.Sola.3.91.960117140412.21531A-100000@chicago> In-Reply-To: <199601161717.KAA08693@intele.net>
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On Tue, 16 Jan 1996, Barnacle Wes wrote: > 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. > > > 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"? > Yes but if you turn off the compression on one modem, shouldn't you also turn it off no the remote modem as well? What's better VJ compression or modem compression? Samy
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