The Design And Implementation Of Network Traffic Gathering And Analysis System

Through the network management, the examination and the analysis for the network equipment or the network traffic is carried on,to safeguard network system reliable and the highly effective running.In the network management,realization of five big function modules which the International Standardization Organization stipulated more or less depends on network traffic gathering and analysis.The present network management software all aims at the common network design,although satisfies some limited requests,however it lacks the further support for some specific network environment,it can only realize the limited function,but the efficiency is not high.The theme aims at the specific network environment,elaborates design concept and the realization method of network traffic gathering and the analysis system based on specific network environment.The theme first analyzes and compares the gathering technologies which the present network traffic management system exists,points that each kind of gathering technology's emphases to the network management realization is different,that any kind of technology used by the user can not satisfy the complex network management.Therefore the theme embarks from two kinds of technologies,designs and realizes network traffic gathering and analysis system so that manages networks by more comprehensive information.Next,discusses two kinds of technologies which are used.Third,the system design profites from the ISO hierarchical structure thought and uses three lays structures:the data agathering lay,the data processing lay and representation layer.The whole structure is clear and is proper for system's development ulterorly. The system uses two kinds of technologies to gather data and carries on the real-time analysis to the data so that can promptly and comprehensively understand the network running condition.Through real-time monitoring to the network traffic,the whole network condition can be grasped real-time and dynamically.Then how to apply the NetFlow to solute the method for network jam is proposed,simultaneously introduces methods which may be used for the unusual traffic and so on.Finally the insufficiency in the research process is summaried and the forecast to the NetFlow technology prospect is carried on.