The Design, Based On The Tmn Mobile Network Fault Management Subsystem

As the sorts of telecommunication networks and their services expand rushly, the network scale is becoming larger and larger. Without the standard interconnect interface, traditional network management systems can not meet the needs of nowadays telecommunication network management. Telecommunications Management Network (TMN) is proposed by ITU-T to connect the maintenance systems with telecommunication equipments, using the standard interface and protocols.According to the methodology and specifications of TMN, this thesis gives the design of the fault management subsystem of the mobile telecommunications network management system.The background of the topic is introduced, mainly focusing on the architecture and components of TMN. Detailed analysis of the functional requirements and logics of the fault management system is presented, as well as introduction of the process of fault management.According to the architecture construction theory, the fault management system is designed with the object-oriented technology. It is departed into three layers: fault collection layer, fault analysis layer and fault display layer. The fault collection layer collects the alarm data, real time collection and maturity is required in the layer. The fault analysis layer is the core of the fault management system, including the alarm data transaction, event correlation analysis, fault location and data interface to the fault display layer. Being an interactive interface of the network system, the fault display layer deal with the alarm display. The ORB bus method is used to build the network architecture. Event interactive design is introduced in the design, and it will lead to a unified fault management system plateform.Detailed designs of functional modules and interface of the fault collection layer and fault analysis layer are given as an example of system implementation. Reliability and expandability are also considered.