| 摘要 |
<p>With respect to a routing and a gateway (protocol conversion) in a network system, frame data can simply be generated even if a source node does not understand format specifications of all protocols, communication efficiency degradation caused by an enlargement of header information can be prevented as much as possible, and dealing with a new protocol can be simplified. A source node (data transmission device (10)) transmits "common routing information (311)", which includes route information identifying all the nodes through which a message frame (312) is routed from an own node to a destination node, while adding the common routing information (300) on the message frame (312). Each relay node (data relay device (20,23,30,33,40)) sequentially transfers the message frame (312) while referring to the common routing information (311) to perform identification of a destination, generation of a header (300), and update of the common routing information (311).</p> |
