| 摘要 |
In an information delivery system including a plurality of node devices mutually communicable through a network, transfer destination node information is respectively memorized in the node devices, and at least one piece of delivery information is distributed and stored therein, and a registration message including storage source node information indicative of one node device storing the delivery information is sent out and transferred to a node device for managing delivery information location through relay node devices in accordance with the transfer destination node information, and the storage source node information is memorized in the relay node devices and the node device for managing delivery information location, wherein the relay node device includes: a memory means; a node information change detection means; a storage source node information extraction means; a reregistration message generation means for generating a reregistration message including the storage source node information; and a reregistration message sending means.
|
