| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To obtain a network control system capable of autonomously determining a transfer path when an edge label switch router in an IP core network receives a stream. <P>SOLUTION: This network control system is provided with a call controller 1 for performing establishment processing of a session between two terminals 9 and 10 housed in different label switch routers 41 to 46 in the IP core network 4, a policy server 2 for performing a resource reservation on the basis of the addresses and CoS (class of service) of the transmitting source and a destination terminal of a stream transmitted in the session with respect to a resource reservation request from the call controller 1 at session establishment when a virtual communication path that can house the CoS of the stream and resources amounts exists, and first stage label switch routers 41 and 44 for determining a virtual communication path fitting the destination address and the CoS stored in the packet of the stream and transferring the stream according to the virtual communication path. <P>COPYRIGHT: (C)2003,JPO</p> |
