From owner-freebsd-isdn Mon Apr 5 14:46:17 1999 Delivered-To: freebsd-isdn@freebsd.org Received: from pearly.csn.calvarychapel.com (ctwf013p07.twf.micron.net [207.70.39.42]) by hub.freebsd.org (Postfix) with ESMTP id C93E01545D for ; Mon, 5 Apr 1999 14:46:13 -0700 (PDT) (envelope-from jimshewmaker@calvarychapel.com) Received: from ester ([192.168.0.114]) by pearly.csn.calvarychapel.com (8.8.8/8.8.8) with SMTP id OAA01287 for ; Mon, 5 Apr 1999 14:55:08 -0600 (MDT) (envelope-from jimshewmaker@calvarychapel.com) Message-Id: <199904052055.OAA01287@pearly.csn.calvarychapel.com> From: "Jim Shewmaker" Organization: CSN International To: freebsd-isdn@FreeBSD.ORG Date: Mon, 5 Apr 1999 15:43:18 -0600 MIME-Version: 1.0 Content-type: text/plain; charset=US-ASCII Content-transfer-encoding: 7BIT Subject: Re: more than 2 B channels Reply-To: jimshewmaker@calvarychapel.com In-reply-to: <199904042110.OAA67999@bubba.whistle.com> References: <199904020112.SAA12298@pearly.csn.calvarychapel.com> from Jim Shewmaker at "Apr 1, 99 06:01:10 pm" X-mailer: Pegasus Mail for Win32 (v3.01b) Sender: owner-freebsd-isdn@FreeBSD.ORG Precedence: bulk X-Loop: FreeBSD.org > Jim Shewmaker writes: > > After glancing through RFC-1717, I still am unable to find any > > information on using Multilink PPP to dynamically combine 2 to 4 > > B channels at once. It appears that there may not be anything > > limiting it at the CO, but I would prefer to set up my 3.1-RELEASE > > machine to have one B channel on each async port. This way the > > other use of our ISDN (live audio feeds for radio broadcast) can be > > dropped individually and at any time without causing problems with > > normal traffic. There would always be at least 1 B channel > > available for Internet use (so that there is 0-3 B channels for audio > > at any given time). > > What are you talking about when you say "one B channel on each > async port"? Are you talking about using two terminal adapters? > You can't have two different terminal adapters connected to the > same ISDN line (unless they have S-interfaces and they're on the > same S-bus). > > If you have two ISDN lines and two terminal adapters, then with > the observation that terminal adapters look just like modems, all > you need to do (I think) is set up two-channel multi-link PPP over > your two async ports. > > If this isn't a meaningful answer, then I didn't understand your question :-) > > -Archie Actually, I mean using up to 4 TAs, so that each TA has its own B channel. That way our application that may need more than one B channel at a time for audio will only take what it needs, not a B channel more. Also, then I won't have to mess with synchronous ports to get 128 K on the normal two B channels, since an async port can go plenty fast to get 64K. I only read about using 2 at a time, nothing with more than 2 B channels. Jim Shewmaker Network and Systems CSN International To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-isdn" in the body of the message