| 摘要 |
The present invention can prevent the occurrence of a phenomenon of non-arrival of packets or the like in a case where a device, which is not compliant with a centralized control type of network, is connected thereto. A network includes: a control apparatus; first nodes that are under a centralized control of the control apparatus; and a second node that holds, on the basis of the addresses of the transmission sources of received packets, entries, each of which associates the port of the local apparatus with the address information of a node to which the transferring can be made from the port of the local apparatus, for a predetermined time period and that refers to the entry group to determine the port corresponding to the destination of a packet, thereby transferring the packet. In the network, the control apparatus causes the first nodes, which are connected with the second node, to transmit, to the second node, at given time intervals, a destination learning packet for causing the second node to learn address information that can be transferred from the ports of the second node. |
