| 摘要 |
<p>To provide a communication system capable of defining an appropriate flow path even when there are two or more types of links of packet forwarding apparatuses that form a communication network. Packet forwarding apparatus information storing means 71 stores, for each packet forwarding apparatus, an identifier of the packet forwarding apparatus, a port identifier of each port of the packet forwarding apparatus, and a type of link connected to each port of the packet forwarding apparatus. When a new flow detection notification is received from a packet forwarding apparatus 80, link type determination means 73 determines a type of link through which a packet received by the packet forwarding apparatus passes, based on the identifier of the packet forwarding apparatus and the port identifier included in the new flow detection notification, and information stored in the packet forwarding apparatus information storing means 71. Path calculation means 74 calculates a communication path for the packet based on topology information on the type of link determined.</p> |
