1. A monitoring control device which monitors communication devices through a virtual LAN provided on a network, the communication devices are connected to one another through the network, the monitoring control device comprising: a bandwidth learning unit which learns a first bandwidth of each of first transfer routes between the monitoring control device and at least one first communication device by using at least one Ethernet frame when a first file transfer is performed over each of the first transfer routes; and a file transfer management unit which manages whether a second file transfer over a section included in a second transfer route between the monitoring control device and a second communication device is able to be performed based on a second bandwidth of the section, the section being a path directly connecting adjacent devices in the network, where a file transfer time of the second bandwidth is calculated based on the first bandwidth of each of the first transfer routes including the section.