The Study on Defending DDoS Based on Multi-threshold Packet Filtering Policy
He Dan · Journal of Nanjing University of Posts and Telecommunications · 2012
Traditional flow analysis and threshold strategy prevention polices use single threshold or double threshold to determine attack behavior.It is easily to realize a DDoS system.But the accuracy is lower.In this paper,we present a double-layer multi-threshold filtering mechanism by using the statistical calculation of recovery loop feedback to the threshold.Simulation results show that the system has a higher prevention accuracy compared with the previous system.