The trend Contents matter more Web caching Multicast, video conferencing Subscription/publication services Security and privacy Addresses matter less Limited in supply Some are non-reachable, e.g private v4, or isolated v6 More and more are moving w Quite a few proposals to make network content centric rather than location centric 1313 The Trend  Contents matter more  Web caching  Multicast, video conferencing  Subscription/publication services  Security and privacy  Addresses matter less  Limited in supply.  Some are non-reachable, e.g., private v4, or isolated v6.  More and more are moving.  Quite a few proposals to make network content centric rather than location centric