Abstract: The present disclosure relates to a method for managing the supply of electrical power to Ethernet devices. The Ethernet devices are connected to a management system via an Ethernet cable supplying them with current. When input information is received by the management system, the management system determines, on the basis of a first list of the Ethernet devices, whether it has to interrupt the supply of power to one or more of the Ethernet devices or, conversely, to re-establish the supply of power thereto.