Implementation And Research Of Northbound Interface Adapter Of Network Management System For Transport Network Based On SNMP

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 device, the amount of circuits and all kinds of material, 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, which also called northbound interface, is the key technology.Q3 interface based on TMN/CMIP is often complained by developers because of its complication.SNMP 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 SNMP is distributed, multi-platform, stretchy, it can solved the deficiencies encountered in TMN technology by Q3 interface. So the solution combining with northbound based-SNMP is the best at present in building the transmission integrated network management system.To the above problem, this thesis mainly researches to manage mulit-vendors and multi-technology's communication equipment. To the aim, a unified information model must be established. If only adopting a unified information model, inter-operation can been realized. In the TMN, vendors may decide definition and realization of their own equipment and network management, but must invest a unified interface called northbound interface on the network management system to outer.This paper puts through the total design requirements of the transport network NMS Northbound interface. The characteristics of SNMP technology, TMN are analyzed, the application of SNMP technology combined with TMN is introduced by an example of the model of the transport network NMS. In the main body of the thesis, based on the requirement analyzed, the Adapter Model based on SNMP is introduced, and the adapter is designed from many ways such as level module, disposal module, thread model, data structure model. In addition, the management flow, initialization process of adapter is described. Finally, the adapter is realized.Now this system has already passed the product test, and has been applied by telecom Service provider.