Design and implementation of fluctuation control system after network intrusion
Network intrusion has strong destruction and uncontrollability,so there are the network traffic conflict,data bandwidth constraint and other random factors after intrusion attack,which make the network traffic appear fluctuation and low stability. Since the previous network fluctuation control method can't control network fluctuation effectively when the network fluctuation is higher than the set threshold,a network fluctuation control system was designed and implemented on the basis of active disturbance rejection controller(ADRC). The system is composed of traffic acquisition module,flow aggregation module, traffic anomaly detection & control module and warning module,and has the functions of network analysis,host analysis,strate?gy management and control. The immunity processor is used in the system to control the flow fluctuation caused by intrusion at?tack,and ensure the network traffic balance. The experimental results indicate that the proposed method makes network intru?sion behavior significantly reduced.