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Re: How do you put a TV station on the Mbone? (was: Royal Wedding...)
From: "Octavio Alvarez" <alvarezp () alvarezp ods org>
Date: Fri, 29 Apr 2011 14:46:23 -0700

On Fri, 29 Apr 2011 10:48:51 -0700, Jay Ashworth <jra () baylink com> wrote:

----- Original Message -----
From: "Rubens Kuhl" <rubensk () gmail com>

And that's the snap answer, yes.  But the *load*, while admittedly
lessened over unicast, falls *mostly* to the carriers, who cannot anymore
bill for it, either to end users, providers, *or* as transit.

Will they not complain about having their equipment utilization go up
with no recompense -- for something that is only of benefit to commercial
customers of some other entity?

Why would they bill someone for a service they are already providing?

So the first user in a router tunes to a multicast stream. Consumption
for the ISP and all the routers in the chain to the source: same as if
it were a unicast stream. Then a second user tunes to a multicast
stream. Cost for the ISP: zero.

So 5000 users connect each to a different multicast source. It is the
same as if they all used unicast. The utilization can never be
worse than a unicast-only network.

So maybe I'm oversimplifying, but I fail to see a problem, only an
artificial one created for the sake of it. Other than the potencial CPU
load of the routing protocol, I even fail to see the commercial value of
not providing multicast.


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