Network control device, network control method, and recording medium for program

A network control method comprising, by a network control device:

• accepting a request for connecting ports on nodes included in an upper layer network;
• obtaining a link connecting the ports through a lower layer network and performance of the link, based on topology information about a layer boundary between the upper layer network and the lower layer network, and topology information about the lower layer network, and holding the link and the performance in an associated manner;
• accepting a flow between nodes included in the upper layer network, the flow being selected depending on the link and the performance;
• and,
• when a route of the flow includes the link, setting a flow related to the link to the lower layer network.

A non-transitory computer readable recording medium for a program to causing a computer to achieve:

• processing of accepting a request for connecting ports on nodes included in an upper layer network;
• processing of obtaining a link connecting the ports through a lower layer network and performance of the link, based on topology information about a layer boundary between the upper layer network and the lower layer network, and topology information about the lower layer network, and holding the link and the performance in an associated manner;
• processing of accepting a flow between nodes included in the upper layer network, the flow being selected depending on the link and the performance;
• and
• processing of, when a route of the flow includes the link, setting a flow related to the link to the lower layer network.