Patent ID: 7984182
Filing Date: 2011-07-19
Classification: H04L

Abstract:
1. A node device which newly participates in an overlay network formed by participation of all or part of a plurality of node devices which are connected to each other via a communication device, comprising: a search information transmission device for transmitting search information, for searching for another node device to which participation request information indicative of a request for participating in the overlay network is to be transmitted, to an information processing device connected to the communication device; a reply information receiving device for receiving reply information, replied from any of the plurality of node devices, which participate in the overlay network and receive the search information transferred by the information processing device; a communication load information obtaining device for obtaining communication load information, related to a communication route between the node devices that reply each of the reply information and the node device itself, out of the reply information thus respectively received; a communication load comparison device for comparing the communication load information regarding each of the communication routes; a node device selection device for selecting a node device to which the participation request information is to be transmitted among the plurality of node devices, which reply the reply information, based on a comparison result by the communication load comparison device; and a participation request information transmission device for transmitting the participation request information to the node device thus selected.