OPERA: An open-source extensible router architecture for adding new network services and protocols
Journal of Systems and Software
On the reliability of large-scale distributed systems - A topological view
Computer Networks: The International Journal of Computer and Telecommunications Networking
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With the increase of sophistication and severity of DDoSattack, it is important for a victim site to quickly identifythe potential attackers and eliminate their traffic. Ourwork is based on the probabilistic marking algorithm bySavage[12] in which an attack graph can be constructedby a victim site. We extend the concept further such that wecan deduce the local traffic rate of each router in the attackgraph based on the received marked packets. Given the intensitiesof these local traffic rates, we can eliminate theseattackers fromsending high volume of traffic to a victim site.More importantly, we propose a theoretical method to determinethe minimum stable time tmin, which is the minimumtime it takes to accurately determine the local traffic rate ofevery participating router in the attack graph.