Early warning and tracking technology against large-scaleflow attack in information network for ITS

The critical security problem in ITS information network is network availability. It is important to avoid flow attack against network availability. This paper analyzes first several current IP-track technologies to find attack route, then analyzes and evaluates the ldquovector edge router samplingrdquo (RVES) method proposed by Chinese experts lately. We developed a prototype system based on RVES way, and carry on experiment in ITS network, results show that the RVES method is easy to implement and flexible for marking probability´s strategy configuration, which can effectively solve the early warning and detect problem about flow attack. Lastly, we proposed possible real world applications of RVES.