Network relay system, control method of network relay system, and, to the management device in the network relay system

摘要

PROBLEM TO BE SOLVED: To connect a plurality of repeaters and to efficiently operate them as one virtual repeater.;SOLUTION: A handling address range is preassigned to each of relays constituting a network relay system. The relay has a data receiving unit, an assigned data transfer unit, an unassigned data transfer unit, and a lower transfer layer transfer unit. The data receiving unit receives data including a destination address in a network layer and a destination identifier in a lower transfer layer. If the destination identifier specifies the own device, the assigned data transfer unit and the unassigned data transfer unit perform data transfer, whereas if the destination identifier specifies other device, the lower transfer layer transfer unit performs data transfer. When the destination address is assigned address, the assigned data transfer unit generates data including an identifier of a device corresponding to the destination address, and transfers the generated data. When the destination address is not assigned address, the unassigned data transfer unit transfer the data to a relay among the plurality of relays constituting the relay system to which the destination address is assigned.;COPYRIGHT: (C)2009,JPO&INPIT