Campus Network Performance Analysis

It is of great significance to study the performance of computer networks. In order to raise the network speed and overcome the network bottleneck. The network performance analysis and evaluation is also the basis of network plan and optimization, for a network that fully fills the requirement of its user should be a high performance one. Meanwhile, the research of network performance has important reference value for evaluating, improving and developing network protocols.In this thesis, the performance measures and key factors, which have influence on performance , are studied and summarized. One target to study the network performance is to find out the mathematical expressions between each measure. Probability, Random Process and Queuing Theory are important and useful mathematical tools for network analysis. Mathematical analysis, computer simulation and spot testing are three basic methods for performance analysis and evaluation. Because campus network have been built before long and spot testing works well under an existed network environment, in this thesis the last methods are adopted.Directing towards the requirement of fault management in the campus networks, the paper firstly researches into such technologies as SNMP, WBM, two primary industry standards andthe network fault management. Then according to the hierarchical tree-architecture, the Web-based four-layer network fault management system is designed and implemented. The paper presents a data collection sub-system based on the domain-manager agents. Database is the center of the system and all the upper layer applications are based on the database server. The system is of good efficiency and extensibility.