Date Added: Jan 2011
The authors usually have well-defined classification scales to estimate the intensity and impact of natural disasters. Prominent examples are the Richter and the Fujita scales for measuring earthquakes and tornadoes respectively. In this paper, the authors apply similar ideas to estimate the impact of Distributed Denial of Service (DDoS) attacks from the perspective of network operators. Devising such a classification scale improves the understanding of DDoS attacks by assessing the actual damage incurred from an ISP's perspective, and allows comparison of various mitigation strategies.