Tony Li wrote:
Vadim,
I sympathize with all of your cogent comments when applied to multicasting in the large. However, multicasting in the small, as practiced by certain ISPs seems to violate all of your assumptions and thus violates your conclusions. A specific example is UUcast. Comments?
There's always niche applications. It is still silly to build a significant chunkof complexity into the core network just to carry insignificant amount of traffic. Tunnels are our friends. --vadim PS I do not see how isolated network violates "all assumptions". And i fail to see why the same functionality (and a lot more) couldn't be implemented in application-level host-based caches/mcast servers. There's no particular reason to drag these functions into core gateways.