| 摘要 |
PROBLEM TO BE SOLVED: To provide a device capable of executing correct path calculation, even when a plurality of path calculation requests are received simultaneously or in a short period.SOLUTION: A path calculation device includes a first storage unit for storing first topology information representing the topology of a network, a second storage unit for storing second topology information generated from the first topology information stored in the first storage unit, and a processing unit for determining a path between the start and end points based on the second topology information stored in the second storage unit, upon receiving a path calculation request including the information representing the start and end points of a path from the network, and providing the path information representing that path to the network. The processing unit updates the second topology information stored in the second storage unit on the basis of the path thus determined.SELECTED DRAWING: Figure 3 |
