Patent ID: 6961318

Claim:
For use in a network included within a packet data transmission system in which data packets may be transmitted from a source system to a destination system through one or more of such networks, a connection control system comprising a local reservation server accessible to the source system, said local reservation server including logic for receiving a reservation request from the source system, said logic responding to a determination that sufficient bandwidth is available in both the local and each of the remote networks of the one or more of such networks on a path between the source system and the destination system to satisfy the reservation request by setting up a virtual connection between the source system and a virtual system, said logic responding to a determination that at least one of the remote networks has insufficient bandwidth available by sending a request for additional bandwidth to a reservation server in that remote network, and a modeling server associated with said local reservation server, said modeling server being capable of gathering utilization and link status information from the local and remote networks and supplying such gathered information to the local reservation server.