Date: Fri, 12 Jan 1996 10:46:28 -0500 From: dennis@etinc.com (dennis) To: hackers@freebsd.org Subject: Re: Status of ISDN drivers Message-ID: <199601121546.KAA01414@etinc.com>
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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.). Of course for $695 you can get RISC-powered "plug and power-up" 128k sync...but we've been through that one before! dennis ---------------------------------------------------------------------------- Emerging Technologies, Inc. http://www.etinc.com Synchronous Communications Cards and Routers For Discriminating Tastes. 56k to T1 and beyond. Frame Relay, PPP, HDLC, and X.25
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