Date: Thu, 15 Apr 1999 12:20:53 -0700 (PDT) From: Archie Cobbs <archie@whistle.com> To: listmail@helena.callcenter.systemhaus.net (Christoph Weber-Fahr) Cc: Freebsd-isdn@FreeBSD.ORG Subject: Re: FreeBSD and ISDN Message-ID: <199904151920.MAA24238@bubba.whistle.com> In-Reply-To: <199904121251.OAA20175@helena.otelo-call.de> from Christoph Weber-Fahr at "Apr 12, 99 02:51:41 pm"
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Christoph Weber-Fahr writes: > > I already have been given > > an Adtran TA. I have never used ISDN for internet before. I plan on > > using USWest's BRI plan that is geared to support the 2 B > > channels, but more than 2 should work according to their tech > > support. > > This is most definitely wrong. They would have to redefine the BRI > interface to make this happen. BRI (=Basic Rate Interface) consists of > two B and one D channel. Yes it can work, because the ISP probably has a PRI interface which has 23 B channels. You would of course need two BRI's however (= 4 B-channels). The problem is that you can't get two normal TA's to be part of the same multi-link bundle... instead they will each try to establish their own bundle independent of the other. The ISP server would see the TA's as unrelated. Some TA's actually have two RS-232 ports which can correspond directly to the two B-channels. If you had two of these, and four COM ports on your PC, then you could run multi-link PPP over the four B-channels, assuming the ISP equipment can handle it and you can figure out how to dial the thing. But with normal TA's this won't work. -Archie ___________________________________________________________________________ Archie Cobbs * Whistle Communications, Inc. * http://www.whistle.com To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-isdn" in the body of the message
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