Article View: comp.sys.mac
Article #3003Re: MNP 5
From: Michael J Kobb
Date: Tue, 15 Aug 1989 22:18
Date: Tue, 15 Aug 1989 22:18
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In article <3120@virginia.acc.virginia.edu> deh7g@newton.acc.Virginia.EDU (David E. Husk) writes: > > Does anyone out there in netland know what 'MNP 5' on a modeum > meams? Some type of error checking? If so what? > > Thanks > > Husk@virginia.edu MNP 5 stands for "Microcom Networking Protocol Level 5." It consists of: An error-correction protocol (which is modem-based, so both modems must support MNP 5. A high-speed data compression routine (written by a friend of mine), which effectively boosts the throughput by 100% (so your 2400 baud MNP5 modem, talking to another MNP5 modem, gets 4800 baud throughput). Nifty, eh? Unfortunately, level 5 is not real widely supported, since it's kind of expensive. Compu$erve supports level 4, which has the error-correction and "adaptive packetizing" (whatever that means -- adapts for line conditions?). It does not, however, support the data compression (why should they? then people could get twice the amount of information for the same amount of money!) Some businesses and schools support level 5... check around... --Mike Standard disclaimers...
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arc1-ca.pugleaf.net!utzoo!utgpu!watmath!att!tut.cis.ohio-state.edu!cs.utexas.edu!usc!bloom-beacon!mit-eddie!mit-amt!mjkobbReferences:
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Path: arc1-ca.pugleaf.net!utzoo!utgpu!watmath!att!tut.cis.ohio-state.edu!cs.utexas.edu!usc!bloom-beacon!mit-eddie!mit-amt!mjkobb From: mjkobb@mit-amt.MEDIA.MIT.EDU (Michael J Kobb) Newsgroups: comp.sys.mac Subject: Re: MNP 5 Message-ID: <486@mit-amt.MEDIA.MIT.EDU> Date: 15 Aug 89 22:18:30 GMT References: <3120@virginia.acc.virginia.edu> Reply-To: mjkobb@media-lab.media.mit.edu (Michael J Kobb) Distribution: na Organization: MIT Media Lab, Cambridge MA Lines: 29