Date: Thu, 23 May 1996 13:23:57 -0400 From: "Louis A. Mamakos" <louie@TransSys.COM> To: Michael Smith <msmith@atrad.adelaide.edu.au> Cc: jkh@time.cdrom.com (Jordan K. Hubbard), hasty@rah.star-gate.com, yves@CC.McGill.CA, freebsd-hackers@freebsd.com Subject: Re: SDL cards Message-ID: <199605231723.NAA01516@whizzo.transsys.com> In-Reply-To: Your message of "Thu, 23 May 1996 23:29:12 %2B0930." <199605231359.XAA08996@genesis.atrad.adelaide.edu.au> References: <199605231359.XAA08996@genesis.atrad.adelaide.edu.au>
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> Jordan K. Hubbard stands accused of saying: > > > > > Let me know if I can be of any assistance , I am really, really tired > > > of my ISPs Ascend 400 . It tends to buckle under the weight of > > > FreeBSD :( > > > > I find this quite surprising - you used to LOVE your Ascend, Amancio - > > is that love affair over so quickly? :-) > > The 400 is the multiport server. They're horrifically expensive, and > apparently seriously underpowered. The thing which may be the root of the problem is if you're expecting the box to do STAC compression on the ISDN B channels. You'll quickly run out of CPU on those boxes. The Ascend MAX 4000 has hardware compression support, so it's much less of an issue. "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. > A friend of mine bought a P50 recently; it's the most amazingly dinky > little unit - I was expexting something much larger. 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. 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. Louis Mamakos
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