Research And Development Of Measurement System In Comprehensive IP Network Management System

With the fast development of Internet and people's continuous demand for high service quality of networks, the area of network performance measurement has now been paid much attention by people and has become the highlight of the research of network management area. The network measurement technology has great significance for mastering the network flow distribution and rising trend, utilizing the network resource reasonably, finding the network performance bottleneck, estimating capability and potential of present network establishment to satisfy service quality, providing idiographic reference data to optimize and extend network establishment.The design and development work of Measrement System in Comprehensive IP Network Management System is completed on the basis of the interrelated technology and problem of network performance measurement and the practical work.The dissertation firstly gives an overview of current research work and development of Internet performance measurement, and narrates several primary network measurement technologies in detail. Then it proposes a three-level model which can guide the large-scale Internet performance measurement on the basis of the structure and method of current Internet performance measurement system, including data detection module, data management & analysis module, data show module, and introduces the model's detailed network measurement method and system structure. Finally the dissertation designs and implements a distributing comprehensive IP network measurement system under the Windows environment, and presents the network probe's detailed design method and implementation progress, including the sockets programming, dynamic-link library programming and the multithreading technology. The system not only offers ways and means of measuring network performance for network manager and consumer, but also provides powerful evidence for high service quality negotiating between network service provider and consumer.