Date: Mon, 5 Apr 1999 15:43:18 -0600 From: "Jim Shewmaker" <jimshewmaker@calvarychapel.com> To: freebsd-isdn@FreeBSD.ORG Subject: Re: more than 2 B channels Message-ID: <199904052055.OAA01287@pearly.csn.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"
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> 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
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