Optical transfer network management system and Method thereof

摘要

PURPOSE: An OTN(Optical Transport Network) management system and a control method thereof are provided to logically express maintenance signals of each transmission layer and transfer an alarm state to a network management system. CONSTITUTION: A configuration management object unit(NECNF)(6) includes signals that an OTN can accommodate, a facility of hardware constituting the OTN and objects related to the state control function. A failure management object unit(NEFMF)(8) recognizes failure of the OTN and a network element and reports it, and performs the function related to diagnosing and recovery efforts. A performance management object unit(NEPMF)(9) evaluates performance of the OTN and the network element and reports it. A sub-network connection management object unit(NFSMF)(7) includes objects having the function of managing connection between nodes. A database management system(5) connected to communication management network performs the standard management function.