On Mon, Mar 18, 2002, Yehuda Drori wrote about "Re: RE : cable modem":
> one of the major differences is the upstream speed. ADSL is asynchronic which
^^^^^^^^^^^
> mean that you can DL very fast comparing to UL ( which is about the upstream
Should be "asymmetric", not asynchronic, of course :)
I'm a bit ignorant about new cable technologies, but how can cable be
symmetric? Cable originally meant large amounts of data flowing from the
cable company HQ to all homes. Little data, if any, flowed back. At one
point I even heard of a cable ISP where the download side comes via cable,
but the upload side returns by modem (and thus limited to 56Kbps).
Is current technology more advanced?
By the way, the other-direction-is-a-modem solution is also doable for
sattelite operators: you'll get relatively fast (but shared) download speeds
and modem-speed for upload. The latency, however, would be annoying for
interactive sessions (e.g., ssh).
> so far this means that cable wins but cable speed is very depended on the
> number of users that share the line which is not the case with ADSL ( user
> are not effected by other users )
Right, cable is a shared medium. But I don't think that there's an inherent
limitation on the total bandwidth that the cable company can put into it
(they can upgrade their cables and add more cables if it was worth their
while). In any case, your ISP has a shared connection to abroad, and even
to the IIX (connecting to other ISPs in Israel), so the cable's limit might
not be the one you'll notice - maybe somebody who will try such a service can
comment on what actually happens (as far as I know, this service isn't widely
available in Israel yet).
--
Nadav Har'El | Monday, Mar 18 2002, 5 Nisan 5762
[EMAIL PROTECTED] |-----------------------------------------
Phone: +972-53-245868, ICQ 13349191 |A Nobel Peace Prize? I would KILL for one
http://nadav.harel.org.il |of those.
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