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Path: euryale.cc.adfa.oz.au!newshost.carno.net.au!harbinger.cc.monash.edu.au!news.cs.su.oz.au!metro!metro!munnari.OZ.AU!spool.mu.edu!sol.net!spool.mu.edu!newsspool.sol.net!howland.erols.net!news.maxwell.syr.edu!chi-news.cic.net!news.inc.net!not-for-mail From: usenet-reply@tar.com (Richard Seaman, Jr.) Newsgroups: comp.unix.bsd.freebsd.misc Subject: Re: FreeBSD and ISDN -- final analysis? Date: 20 Jun 1997 13:29:52 GMT Organization: Internet Connect, Inc. http://www.inc.net usenet@news.inc.net Lines: 21 Message-ID: <5oe0kg$q2a$1@news.inc.net> References: <5obd62$18v@news.gvsu.edu> Reply-To: usenet-reply@tar.com (Richard Seaman, Jr.) NNTP-Posting-Host: ppro.tar.com X-Newsreader: IBM NewsReader/2 2.0 Xref: euryale.cc.adfa.oz.au comp.unix.bsd.freebsd.misc:43239 In <5obd62$18v@news.gvsu.edu>, behrensm@river.it.gvsu.edu (Matt Behrens) writes: >Hi all, > >In my quest to figure out if FreeBSD & ISDN really is possible, I did a >little research first (even R-ingTFM, believe it or not) :) and have come >up with two conflicting information sources. > >1. The FreeBSD handbook states that ISDN is possible simply by hooking it > up to the serial port and using PPP, albeit limited to 115Kbps. If you get a serial port card that goes faster than 115Kbps, and there are a number around, and if it has FreeBSD drivers (I haven't researched if any of the very fast cards do), you can do better than 115Kbps. A 2 B Channel ISDN BRI line can theoretically do 128Kbps sync. There are a number of ISDN TA's that will use this capability, plus compression, to give you better than 115Kbps async throughput. I've seen TA's that talk to the serial port at 230Kbps, at least. How much real throughput you get, I don't know. ISDN routers and bridges can generally do 128Kbps sync, and often compression in addition.