Absolutely, multicast inside of a provider network is critical for
feeding local caches. This is a common approach in IPTV networks
supporting VOD via multiple headends.
Content can still be multicasted to the edge caching servers, for
near-real-time updates,
that you then may visit/view on-demand with your favorite unicast client
Charles
--
Scott Helms
Vice President of Technology
ISP Alliance, Inc. DBA ZCorum
(678) 507-5000
--------------------------------
http://twitter.com/kscotthelms
--------------------------------
