INFORMATION PROCESSING DEVICE AND STORAGE DEVICE, INFORMATION PROCESSING METHOD AND STORING METHOD, AND INFORMATION PROCESSING PROGRAM AND PROGRAM FOR STORAGE DEVICE

摘要

The present invention provides a distribution system in which even in the case where the content distributability varies among content holders CH, desired content can be promptly and efficiently received by a requester RQ. To index information EXX recorded in a root node RN or cache node CN so that it can be referred to from the requester RQ, in addition to content ID and IP address of a content holder CH, easiness information HP indicative of easiness of distribution of content from the content holder CH are added. When the requester RQ determines a content holder CH as a distribution source, a content holder CH having high distributability is preferentially selected with reference to the easiness information HP and content is distributed from the selected content holder CH.