Design And Implementation Of The Cable TV Network Management System Based On SNMP

With the rapid development of the cable TV industry, cable television network scale has expands unceasingly and the number of users is increasinging year by year. In order to provide better quality of service, allows the demands of operators to comprehensive management cable TV equipment has become higher and higher. Cable television network involving a large number of spatial geographic information data, use traditional management model for cable television network management has been unable to meet the reality management requirements. Therefore, design a cable TV network management system combined Web GIS is very meaningful.According to the cable television network management needs. In this paper, based on the study of the simple network management protocol and Web GIS designed the structure and function of network management system. Use hierarchical structure design method designed the network management system structure has divided into the presentation layer, service layer, interface layer three one-way dependence layer, each layer that provides a set of functions and these functions only depend function within the layer. In the aspect of function, could be divided the system into network system function module, the GIS module, the protocol conversion module. Network management function module realizes network management configuration management, fault management, performance management, topology management, security management and other management functions, provided the cable television network management function entrance for user; Implemented GIS module based on Web GIS could through an electronic map to management cable television network resource spatial information; Through the different versions of the SNMP message processing model and security model to realize the protocol conversion module, SNMP messages can be constructed according to the user needs and get PDU data from the received SNMP messages. The system discovered algorithm via network topology to draw a cable television network topology on the electronic map.Finally, using test software for this system has been testing the system response time and system pressure test. Test results show that the system enables acquisition data and alarm from cable television equipment and satisfy the requirement of response to a user action request time, be able to deal with the multi-user concurrent operation stability, this means that the system can manage the network cable equipment and has a certain practical value.