CONTENT DISTRIBUTION SYSTEM, DISTRIBUTION SUPPORT SERVER, P2P TERMINAL AND CONTENT DISTRIBUTION METHOD

摘要

PROBLEM TO BE SOLVED: To enable a P2P non-supporting terminal to stably and efficiently distribute contents relayed by a P2P network.SOLUTION: A P2P non-supporting terminal 7 transmits a request of segmented data to a distribution support server 3. The distribution support server 3 selects a P2P terminal 6 to be a transfer destination candidate terminal of the request on the basis of arrival possibility information and distribution unused capacity information, and transmits a transfer reception request. The P2P terminal 6 transmits a transfer reception possible response to the distribution support server 3 when the segmented data is possessed and a surplus distribution number is one or more after receiving the transfer reception request. The distribution support server 3 transmits a response including a URL of the segmented data to the P2P non-supporting terminal 7 when receiving the transfer reception possible response and the P2P non-supporting terminal 7 transmits a request to the URL extracted from the response when receiving the response. The P2P terminal 6 transmits the segmented data to the P2P non-supporting terminal 7 when receiving the request.