Brad Huntting wrote:
The real difficulty of multicast is in the various relationships
to resource reservation.
This is so completely wrong...
Multicast is cheaper than unicast from every resource perspective.
It uses fewer network resources for both content providers and
consumers. It even uses fewer resources for network providers.
Flaw: You are defining network resources as being circuit bandwidth.
"The real difficulty of multicast" is that it's much more difficult
for ISP's (and presumably router venders) to support than unicast.
No, the real difficulty is it consumes massive amounts of
"network resources"... the rare ones.