From owner-freebsd-hackers Thu May 23 10:26:16 1996 Return-Path: owner-hackers Received: (from root@localhost) by freefall.freebsd.org (8.7.3/8.7.3) id KAA03435 for hackers-outgoing; Thu, 23 May 1996 10:26:16 -0700 (PDT) Received: from whizzo.transsys.com (whizzo.TransSys.COM [144.202.42.10]) by freefall.freebsd.org (8.7.3/8.7.3) with ESMTP id KAA03430 for ; Thu, 23 May 1996 10:26:14 -0700 (PDT) Received: from localhost.transsys.com (localhost.transsys.com [127.0.0.1]) by whizzo.transsys.com (8.7.5/8.7.3) with SMTP id NAA01516; Thu, 23 May 1996 13:23:58 -0400 (EDT) Message-Id: <199605231723.NAA01516@whizzo.transsys.com> X-Authentication-Warning: whizzo.transsys.com: Host localhost.transsys.com [127.0.0.1] didn't use HELO protocol To: Michael Smith cc: jkh@time.cdrom.com (Jordan K. Hubbard), hasty@rah.star-gate.com, yves@CC.McGill.CA, freebsd-hackers@freebsd.com From: "Louis A. Mamakos" Subject: Re: SDL cards References: <199605231359.XAA08996@genesis.atrad.adelaide.edu.au> In-reply-to: Your message of "Thu, 23 May 1996 23:29:12 +0930." <199605231359.XAA08996@genesis.atrad.adelaide.edu.au> Date: Thu, 23 May 1996 13:23:57 -0400 Sender: owner-hackers@FreeBSD.ORG X-Loop: FreeBSD.org Precedence: bulk > 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