Patent ID: 8331233
Filing Date: 2012-12-11
Classification: H04L

Abstract:
1. A communication path control apparatus for use in a communication node forming a packet transfer network together with other communication nodes, said apparatus comprising: a receiving ratio calculator that calculates a receiving ratio of first packets received from each of the communication nodes adjacent to the communication node on which said apparatus is provided, the receiving ratio being calculated with respect to each of combinations of a source and a destination involved in the first packets and representing a proportion of a number of the first packets received from each of the adjacent communication nodes to a total number of the first packets received from all of the adjacent communication nodes; a transmitting ratio calculator that calculates a transmitting ratio of second packets for each of the adjacent communication nodes on a basis of the receiving ratio calculated for a combination of a source and a destination corresponding to the destination and the source of the second packets, respectively, the transmitting ratio defining a proportion in which the second packets transmitted from a source corresponding to the destination of the first packets and meant for a destination corresponding to the source of the first packets are to be transmitted to one of the adjacent communication nodes; and a route selector that selects one of the adjacent communication nodes, to which the second packet is to be transmitted, on the basis of the transmitting ratios calculated.