| 摘要 |
PROBLEM TO BE SOLVED: To provide a physical network resource allocation device and method capable of storing more services with a smaller amount of facilities and operation utilization.SOLUTION: A network resource allocation device for allocating the resource of a physical network for storing the service of a virtual network includes: a reception propriety determination part 3 for, when a service request arrives, determining existence/non-existence of a candidate path which can be allocated to the arrival service; an optimal path determination part 4 for, when the candidate path exists, determining an optimal path to minimize predetermined costs from among the candidate paths; and a rearrangement execution part 6 for, when any candidate path does not exist, and rearrangement is not executed, inhibiting the reception of the service request, and for, when rearrangement is executed, temporarily extracting an existing service from the physical network, and for storing the existing service and the arrival service in the physical network to execute rearrangement.SELECTED DRAWING: Figure 1 |
