| 摘要 |
<p>The system of the present invention includes a number of dynamic peers DP between which content items are exchanged, and a center server CS for controlling the exchange of content items. Each dynamic peer DP sends the operation status thereof to the center server CS, and the center server CS calculates and registers the load on the dynamic peer DP based on the operation status. Each dynamic peer DP obtains a content list from the center server CS, searches for other dynamic peers DP having the desired content item stored therein, and downloads the content item from one of the dynamic peers DP with the lowest load. The system further includes a static peer SP for uploading, to the dynamic peers DP, new content items that have not yet been circulating among the dynamic peers DP. Thus, content items originate from the static peer SP, and are then exchanged between the dynamic peers DP.</p> |
