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Optimal control of DDoS defense with multi-resource max-min fairness

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4 Author(s)
Wei Wei ; Coll. of Comput. Sci. & Technol., Zhejiang Univ., Hangzhou ; Yabo Dong ; Dongming Lu ; Guang Jin

Distributed defense of DDoS (Distributed Denial of Service) attack has been extensively researched in recent years and control-based defense is a hopeful way. However, existed methods only deal with bandwidth protection. The paper takes defense of DDoS flood as a kind of Processing and Bandwidth Resources allocation and solves it using control theory. Our defense mechanism FFDRF (Feedback Filtering with Dual-Resource Fairness) sets up filters in edge routers of AS and adjusts the filtering thresholds through feedback between these routers and the victim. The simulation results show that FFDRF can make the legitimate traffic keep high survival rate while is stable and converges quickly even in case of heterogeneous flow sources and link conditions. Compared with level-k max-min fairness defense, FFDRF is more effective against CPU-consuming flood. And an implementation of FFDRF in a linux router indicates that FFDRF is feasible in real-life routers.

Published in:

Cybernetics and Intelligent Systems, 2008 IEEE Conference on

Date of Conference:

21-24 Sept. 2008

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