Date: Fri, 24 May 1996 12:21:35 -0400 From: dennis@etinc.com (Dennis) To: Michael Hancock <michaelh@cet.co.jp> Cc: hackers@freebsd.org Subject: Re: SDL cards Message-ID: <199605241621.MAA01179@etinc.com>
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>On Thu, 23 May 1996, Karl Denninger, MCSNet wrote: > >> > "Expensive" is a relative question, as always. They do have the >> > advantage of actually mostly working, so you'll save a lot of time >> > trying to get ISDN D channel signaling software to work. And then >> > tweaked to support the different phone switches, NI-1 vs. AT&T Custom, >> > different switch software "features", etc. > >[..] > >> > You should see the Pipeline 130 - T1 with built-in CSU/DSU and ISDN >> > BRI with NT1 in the same sized box. Making it bigger than necessary >> > only makes it cost more. I've got a P50 LS56 on a 56K Frame Relay >> > circuit at home, and it works great. >> >> Yeah, ain't that a neat box? An ISPs dream - T1 access with integrated ISDN >> dial backup (!) on one or two "B" channels. I love those damn things; now >> if I could just get some shipped! :-) >> >> Oh, they're cheap too (~$2k). CISCO, watch out in the access router >> marketplace; you have some serious competition out there. > >Cisco wasn't exactly the leader in this area. They are playing catching >up to the Livingston's and the Ascends. > >> > Disclaimer: at my day job, I work at UUNET Technologies, and we have >> > about 500 Ascend MAX 4000 boxes deployed in the field on about 1000 >> > ISDN PRI's. Having the product work is a big feature. >> >> Yep. I run MCSNet, and we switched about a month ago from traditional >> modems to Maxen as well. We also find that they work quite well. Still >> some software quirks, but I'd never go back to the old way. >> >> Being able to get 500+ lines in one 84" cabinet is a big plus :-) > >Granted. Ascends are very very nice. > >But there is no hack value. An ISDN-only solution using a P6 box with 3 >busmastering SDLComm RISCom/Pri cards handling 69 incoming ISDN >connections with STAC compression would be very cool. Yes and so would a molecular partical transporter :-) 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 for BSD/OS, FreeBSD and LINUX
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