Date: Thu, 11 Jul 1996 14:28:09 -0400 From: "Jacob M. Parnas" <jparnas@jparnas.cybercom.net> To: Henry Spencer <henry@zoo.toronto.edu> Cc: hardware@freebsd.org, bsdi-users@bsdi.com Subject: Re: your mail Message-ID: <199607111828.OAA03235@jparnas.cybercom.net> In-Reply-To: Your message of Thu, 11 Jul 1996 10:15:40 EDT. <Pine.3.89.9607111001.D4490-0100000@zoo.toronto.edu>
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In message <Pine.3.89.9607111001.D4490-0100000@zoo.toronto.edu>you write: >> >...Note that the splitting is *not*, in general, over the entire >> >metropolitan area -- the cable company can and does subdivide. The folks >> >in the Rogers Toronto-area experiment say that the net effective data rate >> >did vary depending on load, but it was always a lot faster than phone... >> >> I thought that while it was pretty easy to add a new ISDN server, it was >> hard to add a new cable. This would seem to be a problem, especially if >> this was done in bulk... > >They don't have to add new cable, just new boxes at the appropriate point >in the distribution tree. (As I think I already mentioned, the signal >distribution in cable is a tree, not a star, with the last amplifiers at >a fairly local level, out on poles in your neighborhood.) Especially if >everything before the final amplifier uses fiber -- which is, I believe, >the new trend, to the point where existing wiring is being converted at a >brisk pace in many areas -- the wiring is already in place. > >> >> And if you have to move, you may be out of luck. >> >ISDN has the same problem. >> >> I thought ISDN was a bit more common and standardized, but I could be wrong. > >Standardized, yes, but common... well, that varies a whole lot. It's not >something you can count on being able to get, especially at a reasonable >price, not yet. The bottom line for ISDN and cable is similar -- if you >really need it, that constrains where you move -- although the extent of >the problem may differ at the moment. > >> Also, how much are the charges for installation, equipment and any monthly/ >> packet/etc charges? > >This depends very heavily on the cable company, the same way ISDN charges >depend very heavily on the phone company. In Toronto, Rogers is talking >about a flat monthly fee of $30-40 on top of what you pay for your basic >cable service (which they quietly assume you already have!). We'll see. > > Henry Spencer > henry@zoo.toronto.edu Thanks for all the useful information. I wish my cable company would provide the service that some of you are getting. A nearby one does, but that doesn't help. *sigh*. I did think that ISDN was catching on, like touch-tones did, but I'm not sure. Jacob
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