Mapping Local Internet Control

Russia's high AS complexity (score 19.39, 2,346 ASes) enabled the Russian Business Network to hide malware-hosting ASes by chaining traffic through multiple intermediate legitimate-seeming ASes, making connections very difficult to trace and sever. The paper concludes that higher national AS complexity directly raises the operational cost of enumerating and cutting any given connection.

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China has only 3 points of control covering approximately 240 million IP addresses (roughly 80 million IPs per point of control), the lowest ratio among large-population countries. This enabled China to cut off nearly all Internet access for the Xinjiang region for ten months beginning July 2009.

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Eastern Asia averages 4.80 points of control and a complexity score of 1.54 across 510 million IP addresses, while Eastern Europe averages 19.10 PoC and a complexity score of 11.35 across 74 million IPs — nearly twice the complexity of any other region. Russia specifically has 2,346 autonomous systems and a complexity score of 19.39, versus China's 177 ASes and score of 0.11.

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By 2009, the top 150 autonomous systems carried approximately 50% of all Internet traffic globally, up from roughly 30% in 2007. Akamai alone claimed approximately 20% of all web traffic, and the proposed Level 3 / Global Crossing merger would have covered over half the world's IP addresses.

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Iran and Libya each have a single point of control (1 AS), making complete national internet shutdown achievable with a single administrative action. Egypt's 2011 shutdown left one AS (Noor Group, 4.9% of connected IPs) operational for four days, apparently due to its role serving the Egyptian stock exchange and other core financial institutions.

§VI, Figure 7 deployment asn-blackholingbgp-hijackthrottling ir