Control apparatus and control method

A control device used in a communication network including a plurality of routers and a plurality of transmission apparatuses configured to connect the plurality of routers to each other, the control device comprising:

• a transmission configuration information storage unit, including one or more processors, configured to manage a transmission path that connects the plurality of transmission apparatuses to each other, and to determine whether a redundant configuration in a transmission layer is available for the transmission path;
• a route information storage unit, including one or more processors, configured to manage a route configured between the plurality of routers and a transmission path used on the route;
• and
• a transfer path establishing unit, including one or more processors, configured to, in response to an establishment request including a requirement for the redundant configuration for a transfer path connecting the plurality of routers to each other, refer to the transmission configuration information storage unit and the route information storage unit, establish a transfer path using a redundant route when a redundant configuration in a transfer layer is required as the requirement in the redundant configuration, and establish a transfer path not using the redundant route but being linked to the transmission path with the redundant configuration in the transmission layer when the redundant configuration in the transmission layer is required as the requirement for the redundant configuration.