Patent ID: 8862707

Claim:
A server of an operation system to monitor and control at least one transmission apparatus of a network, the server comprising: a monitor to monitor a status of another server; a first storage to retain a first network configuration information; a second storage to copy the first network configuration information and use the copied first network configuration information to monitor and control the transmission apparatus when the monitor detects an abnormality in the another server; a third storage to retain a first update history information including update information of a network configuration information obtained from a client in the operation system; and an operation configuration manager to update the first network configuration information and a second network configuration information retained in the another server when the another server recovers from the abnormality, wherein the operation configuration manager is configured to update the first network configuration information and the second network configuration information based on the first update history information and a second update history information retained in the another server, wherein the server and the another server are configured to control and monitor the transmission apparatus separately, and wherein the server and the another server include configuration databases that synchronize with each other.