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Path: euryale.cc.adfa.oz.au!newshost.anu.edu.au!newshost.telstra.net!asstdc.scgt.oz.au!metro!metro!munnari.OZ.AU!spool.mu.edu!agate!howland.reston.ans.net!gatech!newsfeed.internetmci.com!in2.uu.net!brighton.openmarket.com!wizard.pn.com!Germany.EU.net!ruhr.de!nathan.ruhr.de!not-for-mail From: ue@nathan.ruhr.de (Udo Erdelhoff) Newsgroups: comp.unix.bsd.freebsd.misc Subject: Re: ISDN Date: 31 Mar 1996 14:03:36 +0200 Lines: 27 Message-ID: <4jlsao$cc@nathan.ruhr.de> References: <4ivo5k$jq3@sundog.tiac.net> <31553A0B.41C67EA6@FreeBSD.org> <Doy3J8.K0M.0.raindrop.seaslug.org@raindrop.seaslug.org> <315AFE74.41C67EA6@FreeBSD.org> X-Newsreader: TIN [version 1.2 PL2] Hi Jordan, Jordan K. Hubbard (jkh@FreeBSD.org) wrote: : You do lose whatever's over the top end between 115.2K and 128K, PLUS : you have the 2 bit overhead of async data, but I guess it still works : pretty fast (I get 10.5K/sec in my FTP transfers pretty steadily) so I : don't particularly mind! :-) I agree that 10.5 KByte/sec is an impressive speed. The only problem is that the guys with internal cards (Teles, etc.) will get about 15-15.5 KByte/sec out of that connection. As far as I understand it, the difference is the way the ISDN line is used. Those with an "ISDN Modem" (like you and me) use it as a super-fast modem line, the guys with an internal card treat it more like an ethernet connection. My big question is: What kind of protocol do they use with their internal cards? I've heard rumors that they use something like this: B-channel layer protocol 1 HDLC 2 transparent 3 transparent Just a rumor or is it the truth? /s/Udo -- Udo Erdelhoff ue@nathan.ruhr.de