| 摘要 |
PURPOSE:To exchange routing information without any excess load by stopping the multicast of a connection information bucket from an intermediate system to each termination system, and inquiring the address of the data link layer of the destination to the termination system in which the necessity of transmission is generated. CONSTITUTION:A routing table 12 stores routing information, that is, the N layer address of a destination termination system, the data link layer address of the direct transmission destination node corresponding to it, and holding time. The holding time is time for letting the routing information hold in the routing table, and the information held beyond the holding time is deleted. When a data bucket transmitting request is made from a host layer (not shown in a figure), a data bucket transmission control part 13 retrieves the routing table 12, and confirms whether or not the N layer address of the address destination termination system is present. When it is registered, the corresponding data link layer is read, and the data bucket is transmitted to the address destination termination system or intermediate system of the address. |
