Purdue Federal Credit Union
The authors conduct a detailed simulation study to examine how localizing P2P traffic within network boundaries impacts the profitability of an ISP. A distinguishing aspect of their work is the focus on Internet-wide implications, i.e., how adoption of localization within an ISP affects both itself and other ISPs. Their simulations are based on detailed models that estimate inter-AS P2P traffic and inter-AS routing, localization models that predict the extent to which P2P traffic is reduced, and pricing models that predict the impact of changes in traffic on the profit of an ISP. They evaluate their models by using a large-scale crawl of Bit-Torrent containing over 138 million users sharing 2.75 million files.