Routing Bottlenecks in the Internet: Causes, Exploits, and Countermeasures

摘要: How pervasive is the vulnerability to link-flooding attacks that degrade connectivity of thousands Internet hosts? Are some geographic regions more vulnerable than others? Do practical countermeasures exist? To answer these questions, we introduce notion routing bottlenecks and show it a fundamental property design; i.e., consequence route-cost minimizations. We illustrate pervasiveness in an experiment comprising 15 countries cities distributed around world, measure their susceptibility scalable attacks. present key characteristics bottlenecks, including size, link type, distance from host destinations, suggest specific structural operational These can be deployed by network operators without needing major redesign.