CONTENT DELIVERY APPARATUS, CONTENT DELIVERY METHOD, AND CONTENT DELIVERY PROGRAM

摘要

In a content delivery method in a P2P network 20, a content publishing node divides a publish content according to a situation of each downstream node adjacent thereto, and causes each downstream node to hold a divided content, and a content downloading node simultaneously downloads in parallel the divided contents from the plurality of downstream nodes. When a plurality of pieces of tag information on a plurality of divided contents of a same content is received form a downstream node, the plurality of pieces of tag information are merged to be distributed in upstream nodes.