P2P is good news “will force us to look for new solutions architectures in resource manegment”

 Past approaches to resource management include port filtering, mac address filtering, byte limiting  It is the old problem of “abuse of the commons” on any shared medium  With a shared medium network administrator has to make sure medium is used responsibly  With P2P data flows so large maybe we need to go back to connection oriented topologies

 Connection networks are not all bad  Telco business model and ATM gave connection networks a bad name  In future we may need both connection and connectionless networks (both have their advantages)  Two approaches to hybrid network:  QoS over connectionless  Best efforts over connections

 Internet was so successful not because it was connectionless but because of the Internet e2e principle that enabled innovation by putting control at the edge  Can we do the same thing with connection networks??  Peer to peer like Freenet, Fastlane(kazaa) with self organizing routers is application based routing  Routers are “connected” while the traffic is “connectionless”

 CA*net 4 is first attempt to put connections under control of user  Working on concepts such like RPON that will extend CA*net 4 concept to individual user  Ultimate objective- peer to peer “telephone calls” but where user controls routing of the telephone switch