| 摘要 |
A distribution destination data communication device (13) receives data to be distributed either directly from a distribution origin data communication device (12) or via another distribution destination data communication device (13). For each distribution destination data communication device (13), a management data communication device (11) receives, every time a prescribed amount of time has elapsed, communication state data indicating the communication speed for each communication partner and already stored data volume data indicating the volume of data to be distributed that has already been stored by each distribution destination data communication device (13). The management data communication device (11) determines, on the basis of the foregoing data, a global arrangement of distribution destination data communication devices (13) and a path for transmission and reception between the distribution destination data communication devices (13). The distribution destination data communication devices (13) transmit blocks to and receive blocks from communication partners determined by the management data communication device (11). |
