From owner-freebsd-isp Sat Apr 12 04:55:00 1997 Return-Path: Received: (from root@localhost) by freefall.freebsd.org (8.8.5/8.8.5) id EAA29750 for isp-outgoing; Sat, 12 Apr 1997 04:55:00 -0700 (PDT) Received: from mixcom.mixcom.com (mixcom.mixcom.com [198.137.186.100]) by freefall.freebsd.org (8.8.5/8.8.5) with SMTP id EAA29741 for ; Sat, 12 Apr 1997 04:54:56 -0700 (PDT) Received: by mixcom.mixcom.com (8.6.12/2.2) id GAA16886; Sat, 12 Apr 1997 06:56:07 -0500 Received: from p75.mixcom.com(198.137.186.25) by mixcom.mixcom.com via smap (V1.3) id sma016856; Sat Apr 12 11:56:01 1997 Message-Id: <3.0.32.19970412064847.00ccd15c@mixcom.com> X-Sender: sysop@mixcom.com X-Mailer: Windows Eudora Pro Version 3.0 (32) Date: Sat, 12 Apr 1997 06:48:48 -0500 To: Vincent Poy From: "Jeffrey J. Mountin" Subject: Re: TS Holy War (was Re: Some advice needed.) Cc: isp@FreeBSD.ORG Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Sender: owner-isp@FreeBSD.ORG X-Loop: FreeBSD.org Precedence: bulk At 02:36 AM 4/12/97 -0700, Vincent Poy wrote: > Hmmm, what's the difference between this and a channelized T1? PRI is ISDN w/23 usable B channels at 64K/ea and CT1 has 24 channels of 56K/ea, which is generally less expensive, sometimes by a large factor. > Hmmm, what about the offerings from Cisco since I know some of the >Regional providers used it. More expensive per port. Don't know much else, as I was raised on Livingston, but I would guess you would want support for 56K analog. Don't think you can do that easily with Cisco. > Hmmm, do most ISPs have a spare machine and mirror it since >wouldn't backups do the same thing? Dunno, but considering that even with a DAT and fast system it can take a few hours to bring a system back up and in the case of a hardware failure it might take a while to isolate it. Faster to restore customer data to a working system and system data should be similar, so it is just a matter of configuring the services. Crash recovery is a pain and best to have a few options. I have enough parts for at least 2 machines. My own box can do stand in services. The point is to be quick about switching critical services. > Hmmm but if it's a POP, why would there be outgoing calls? =) One thing that you could offer to ISDN customers is dial-back, but this depends on 2 things; one is if you pay for it and another is if they pay for. With Ameritech business ISDN customers pay per channel, per minute and we don't, so this is a service plus. >> IMHO, term servers are good for dial-in shell access. > > What about for both dial-up shell and ppp access? Guess I should clarify that for just shell access a term server is good. We have a Xylogics and some users never call PPP. The comm server has to connect to a host, which can be done with telnet or in some cases it is an option on connect, but I don't like this method. Guess this topic should have the subject of "A lot of advice offered." ;=) ------------------------------------------- Jeff Mountin - System/Network Administrator jeff@mixcom.net MIX Communications Serving the Internet since 1990