CONTROL APPARATUS, CONTROL METHOD AND PROGRAM
A control apparatus for embedding, in a physical network, a virtual network that implements provision of a service is provided. The control apparatus includes a memory; and a processor configured to acquire a prediction value of a traffic volume of the service and a prediction value of electric power including renewable energy that is usable by each physical node that constitutes the physical network; acquire information on the physical network; calculate an optimal solution of a two-stage robust optimization problem related to allocation of virtual nodes constituting the virtual network to physical nodes and path determination between the virtual nodes, based on the prediction value of the traffic volume, the prediction value of the electric power, and the information on the physical network; and control the virtual network embedded in the physical network, based on the allocation of the virtual nodes and the path determination represented by the optimal solution.
1 . An apparatus for allocating a virtual network to a physical network, the apparatus comprising:
a processor; and
a memory storing program instructions that cause the processor to perform allocation of virtual nodes constituting the virtual network to physical nodes or perform path determination between the virtual nodes, based on a prediction value of a traffic volume of a service, a prediction value of electric power of each of the physical nodes, and information on the physical network.
2 - 5 . (canceled)
6 . The apparatus according to claim 1 , wherein the allocation of the virtual nodes to the physical nodes or the path determination between the virtual nodes are performed so as to minimize a total cost of entirety of the virtual network.
7 . The apparatus according to claim 6 , wherein the cost is either a power consumption cost or a processing time cost.
8 . An apparatus for allocating a virtual network to a physical network, the apparatus comprising:
a processor; and
a memory storing program instructions that cause the processor to
perform allocation of virtual nodes constituting the virtual network to physical nodes or perform path determination between the virtual nodes, based on a prediction value of a traffic volume of a service, a prediction value of electric power of each of the physical nodes, and information on the physical network, the allocation or the path determination being robust to a prediction error in each of the prediction value of the traffic volume and the prediction value of the electric power.
9 . A control method performed by an apparatus for allocating a virtual network to a physical network, the control method comprising:
performing allocation of virtual nodes constituting the virtual network to physical nodes or performing path determination between the virtual nodes, based on a prediction value of a traffic volume of a service, a prediction value of electric power of each of the physical nodes, and information on the physical network.