A Two-Tier Coordination System against DDoS Attacks

Chin-Ling Chen, Chih-Yu Chang


We present a two-tier coordination approach for detecting and mitigating DDoS attacks. The first tier traffic filter (1st-TF) filters suspicious traffic for possible flooding. This is achieved by using proactive tests to identify and isolate the malicious traffic. The second tier traffic filter (2nd-TF), which is deployed on network routers, performs online monitoring on queue length status with RED/Droptail mechanism for any incoming traffic. The simulation shows that the scheme can detect attacks accurately and effectively.

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International Journal of Online and Biomedical Engineering (iJOE) – eISSN: 2626-8493
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