Characterizing and Mitigating Inter-Domain Policy Violations in Overlay Routes

Provided by: Georgia Institute of Technology
Topic: Mobility
Format: PDF
The Internet is a complex structure arising from the interconnection of numerous Autonomous Systems (AS), each exercising its own administrative policies to reflect the commercial agreements behind the interconnection. However, routing in service overlay networks is quite capable of violating these policies to its advantage. To prevent these violations, the authors see an impending drive in the current Internet to detect and filter overlay traffic. In this paper, they first present results from a case study overlay network, constructed on top of Planetlab that helps one gain insights into the frequency and characteristics of the different inter-domain policy violations. They further investigate the impact of two types of overlay traffic filtering that aim to prevent these routing policy violations: blind filtering and policy-aware filtering.

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