Design And Implementation Of CORBA Based Transport Network NMS Northbound Interface

With the rapid development of various telecom business and new technology, the telecom competition has become severe Moreover, the management contents, such as the kinds of devices, the amount of circuits and all kinds of materials, have increased on geometric series. As the result, the operating and maintaining department is under increasing pressure. So an effective solution, which can be used to fully control, deploy, operate and manage the transmission network, is badly in need. In the five-layer management hierarchy of TMN, the transmission network NMS lies in the third layer, and interface technology, which also called northbound interface, is the key technology. Q3 interface based on TMN/CMIP is often complained by developers because of its complication.CORBA is a mature distributed object-oriented technology at present, and many foreign telecom enterprises have used it in network management system and integrated network management system. As CORBA is object-oriented, distributed, multi-platform, stretchy, it can solved the deficiencies encountered in TMN technology by Q3 interface. So the solution combining with northbound based-CORBA is the best at present in building the transmission integrated network management system.This paper puts through the total design requirements of the transport network NMS Northbound interface. The characteristics of CORBA technology, JAVA language and TMN are analyzed, the good application of CORBA technology combined with JAVA in TMN is introduced by an example of the model of the transport network NMS. Papers at the same time introduced northbound interface design and realization of methods, models and other information, the detailed design of Northbound interface, configuration management module.Results and conclusions in this paper have been applied to a power transport networks NMS and it works well.