In a communication network, the network management system NMS keeps one or more element management system EMS in synchronization of network topology changes using requests that are automatically generated or manually requested and then sent from the NMS to the affected EMS whenever a node topology change is made at the NMS. A content holding section holds content obtained from the content server. A smart breaker is connected to the telecommunications device and includes a current detector configured to detect current flow from the power supply through the smart breaker to any installed line cards.