• Description

    In this project, we quantify the potential gains of hybrid CDN-P2P for two of the leading CDN companies. We develop a novel methodology to map the topologies of CDN networks. Then we use two real-world traces, a VoD trace and a large-scale software update trace, to evaluate schemes where ISP-friendly P2P distribution schemes working in conjunction with the CDNs to localize traffic within regions of ISPs. We find that hybrid CDN-P2P can significantly reduce the cost of content distribution, even when peer sharing is localized within ISPs and future localized within regions of ISPs; thus, hybrid CDN-P2P distribution can economically satisfy the exponential growth of Internet video content without placing an unacceptable burden on regional ISPs.

  • Experiment

    We mainly perform following experiment:

    • Charting CDN networks

    • Classifying ISP-friendly traffic

    • Comparing the benifit of hybrid CDN-P2P with pure CDN

  • Main tools

    • CDN network charting: dig, traceroute, HTTP query, PlanetLab

    • Data process: MySQL

    • Programming language: Java, Perl, SQL, Matlab

  • Publications

    Cheng Huang, Angela Wang, Jin Li, and Keith W. Ross, "Understanding Hybrid CDN-P2P: Why Limelight Needs Its Own RedSwoosh", 18th International workshop on Network and Operating Systems Support for Digital Audio and Video (NOSSDAV08), Braunschweig, Germany, May. 2008