• To understand Internet routing, it is crucial to go beyond the Autonomous System (AS) level to city-level routing, as it reveals the underlying physical locations. • Border Gateway Protocol (BGP) location communities are the only routing data that provide this level of detail, by signalling where ASes peer with each other. • However, most BGP communities are not standardized or documented, leaving researchers and operators no reliable way to interpret them. • We propose a method to infer their meaning. • This post presents highlights of our inference method, which exploits the spatial correlation between a network prefix’s origin and the location of the router that attaches a location community, along with selected inference results. • You can find a more comprehensive exploration of the topicin our paper.
Article Summaries:
- To understand Internet routing, it is crucial to go beyond the Autonomous System (AS) level to city-level routing, as it reveals the underlying physical locations. Border Gateway Protocol (BGP) location communities are the only routing data that provide this level of detail, by signalling where ASes peer with each other. However, most BGP communities are not standardized or documented, leaving researchers and operators no reliable way to interpret them. We propose a method to infer their meaning. This post presents highlights of our inference method, which exploits the spatial correlation betw
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