Kobayashi san;
> ISP talking with you intend to charge whether sender, reciever
> or both ? I guess some ISP would not like to start multicast
> service, even if subscriber request it. They might sometimes
> say as an excuse what you heard.
>
> I think there are a lot of way to make a special charge for special
> service without resource reservation protocol as you think, even
> if you say "It is not scalable way" :)
You completely miss the point.
Because best effort service is flat rated, receivers are not motivated
to use multicast. Senders learned to have more servers. See my column
article on the most recent IPSJ magazine for details.
That's all.
Masataka Ohta
