Patent ID: 8885640
Filing Date: 2014-11-11
Classification: H04L

Abstract:
1. A path control method of controlling paths on a network wherein a plurality of nodes, including one or more relay nodes and a plurality of edge nodes, are connected via links, the method comprising: performing, at each of the edge nodes, path determination that includes: receiving path information indicating paths for forwarding data among the edge nodes, the paths previously determined by another edge node, among the edge nodes, that performs the path determination earlier than the each of the edge nodes, determining the paths for forwarding the data based on the paths indicated by the received path information and a state of the one or more relay nodes, and updating the received path information based on the paths determined by the each of the edge nodes; performing sequentially the path determination by all of the edge nodes; conducting path control on the network by using the path information indicating the paths determined by a last edge node among the edge nodes after the path determination is sequentially performed by the all of the edge nodes; and predicting traffic volume at the time path control will end, on the basis of traffic volume measured during the path determination, wherein the paths are determined based on the predicted traffic volume and the path information.