In order to make it possible for an upper layer to receive the supply of a desired resource from a lower layer and make it possible to suitably grasp a trend in requests for a lower layer resource, this network control device is provided with: an upper hierarchical layer control unit that receives a request for an upper virtual link settable for the purpose of connecting user ports connected to an upper layer network, determines the performance of the settable upper virtual link, and associates and retains the result; and a lower hierarchical layer control unit that receives a request for a lower virtual link settable for the purpose of connecting ports within the upper layer network via a lower layer network, determines the performance of the settable lower virtual link, and associates and retains the result. The upper hierarchical layer control unit comprises: a resource demand prediction unit that predicts a future request on the basis of the request history of the settable upper virtual link; and a capacity design unit that calculates the resources of the lower layer network required for a predicted request. The upper hierarchical layer control unit sends a request to the lower hierarchical layer control unit for a settable lower virtual link corresponding to a calculated resource and sets a flow corresponding to the settable lower virtual link in the lower layer network.