Abstract: Analyzed VTP method, the performance of real-time method based on VTP was evaluated, and the effectiveness of this method was proved. Using this method to calculate the Hurst parameter of traffic data set of Lincoln Lab of MIT, the law of change of Hurst parameter during DDoS attack was found, so a technology of detecting DDoS attack on real-time is proposed.

摘要： 在对VTP方法分析的基础上，对基于VTP的实时在线计算Hurst参数技术进行了性能分，并利用这种技术，对MIT的林肯实验室数据进行了分析，得出了DDoS攻击过程中，网络流量的自相似模型的Hurst参数变化规律，并由此总结出一种基于Hurst参数实时检测DDoS攻击发生的技术。