CONTENT DISTRIBUTION DEVICE, CONTENT DISTRIBUTION METHOD, AND CONTENT DISTRIBUTION PROGRAM

摘要

In a content distribution method in a P2P network (20), a content opening node divides a content to be opened, depending on the states of adjacent downstream nodes (for example, the speed of a line to which the node is connected), and has the adjacent downstream nodes hold the divided contents. A node for downloading the contents downloads the contents simultaneously and parallel with each other from the downstream nodes holding the divided contents. Further, when receiving from the downstream nodes a plurality of tag information of the divided contents for an identical content, the node assembles the plurality of tag information into single tag information and distributes the single information to an upstream node.