Date: Fri, 12 Jan 96 15:02:53 +0100 From: garyj@frt.dec.com To: jkh%freebsd.org@inet-gw-1.pa.dec.com Cc: hackers%freebsd.org@inet-gw-1.pa.dec.com Subject: Re: Status of ISDN drivers Message-ID: <9601121402.AA28614@cssmuc.frt.dec.com> In-Reply-To: Message from "Jordan K. Hubbard" <jkh@time.cdrom.com> of Fri, 12 Jan 96 01:44:29 PST.
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jkh@time.cdrom.com writes: > > What do you mean by 'sync'? Do you really want to get down to layer > > 2? In any case, you would only need one board: they handle a complete > > BRI. > > I mean I want to run 8 bit bytes down the line, not 10 bit bytes. :-) > Clocked serial. Synchronous serial. > this is IP over HDLC, the bytes all have 8 bits :) It's completely transparent and demand-dialed, very simple. > I'd also need two cards - I manage both ends of the link, right? :-) > I wouldn't mind moving the serial load off of freefall anyway. > A semi-intelligent ISDN card could be stuck into a number of different > machines at WC. > ah, yes, you'd need a card in freefall ! The Teles card can use 2 B-Channels. I'm not certain that the existing kernel code will do channel bundling, though. Sure would be interesting to try it. And it would *really* be nice to have someone in the US test the ISDN stuff ! WRT getting 128kb/sec. I though the RBOCs in the States only support 56kb/sec. per channel ? How you going to squeeze 128kb/sec. out of that ? The D-Channel is not used for data transfer (that would be an additional 16kb/sec.). --- Gary Jennejohn (work) gjennejohn@frt.dec.com (home) Gary.Jennejohn@munich.netsurf.de (play) gj@freebsd.org
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