Re: Is the cable system insecure?

Not quite. The taps to which subscribers are connected are directional and have high port-to-port isolation. Not like a hub or switch or T-connection.

The downstream path is located somewhere in the bandwidth of 88-860MHz, while the upstream path is in the 5-42MHz bandwidth. Just where depends on the system.


CIAO!

Ed N.

Nonapeptide@xxxxxxxxx wrote:
Also, (again, if I understand correctly) each transmission that I send
hits some kind of local aggregator (multiplexer?) which then, in hub-
like fashion, repeats the transmission to every port, which includes
every neighbor that has a cable modem as well as the upstream
connection to the head end? Eek! Seems like a waste of bandwidth for
the provider. Each last mile area of a cable provider's service is
essentially a big MAN sized collision domain?


.

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