| 摘要 |
<p>A server (1) assigns one of a plurality of chents (2(21), 2(22),...) as a representative client (2) to each of a plurality of block data in a round-robin manner, for example. The server (1) transmits the block data and information indicating the representative client (2) assigned to the block data to the plurality of clients (2(21), 2(22),...) by multicast communication. The representative client transmits a response acknowledgement to the server (1). When the server (1) receives the response acknowledgement, the server (1) transmits block data following the block data and information indicating a new representative client (2) assigned to the following block data to the plurality of clients (2(21), 2(22),...) by multicast communication.</p> |
