Detection And Analysis Of Network Traffic

The development of computer network technology at very fast speed, and the network scale continuously extends, causing the network structure to complicates gradually. Therefore computer network management become the hotspot of network research realm because of this, but according to TCP/ IP network, SNMP (Simple Network Management Protocol) being used as protocol standard has been widely use in fact. So, according to standard protocol, make a kind of network management tool, network administrators can conveniently manages network and increases the network thruput is a primary investigative purpose.This thesis through analyzing SNMP and discussing traditional network management model, put forward a kind of realization method that can examinate network node flux and a kind of three layer network management model that based on Web. According to this model and method, carry through the system total design and the system detailed design, pass the some tools realize network flux examination and analyze system.The system can time read flux data of network node-router, since the total flux that can obtain a certain port in router can also obtain the dynamic IP flux form, at the same time flux data can be deposited to the homologous log document, when user need these data, taking out the related data to make the picture of PNG, and put it into HTML page to give the user a vivid image of the flux data, letting the user can more faster and understand the flux instance of a network node .In the system the period of the data collection to make certain is very important, for the sake of guaranteeing the data integrality and the data security, the system adopted a method that enactment dynamic period.