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iPlane: Internet-Wide Information Plane for Topology, Path Prediction, and Performance Analysis

iPlane serves as a comprehensive internet-wide information plane that constructs an atlas of the Internet topology. Utilizing traceroutes from over 200 PlanetLab nodes and 500 traceroute servers, it gathers data on paths and their properties across 140K prefixes. iPlane provides insights like path prediction, showcasing actual vs. predicted round-trip times (RTTs), and captures essential performance metrics with a compact representation. Operating for over 3.5 years, the data is utilized by more than 40 institutions for diverse applications such as content distribution, VoIP, and P2P video streaming.

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iPlane: Internet-Wide Information Plane for Topology, Path Prediction, and Performance Analysis

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  1. iPlane Status Harsha V. Madhyastha University of California San Diego

  2. iPlane: An Internet-wide Information Plane Routers End-hosts Links • Construct an “atlas” of the Internet topology • Traceroutes from 200 PlanetLab nodes + 500 traceroute servers • Destinations are .1 addresses in 140K prefixes • Use the atlas to predict paths and path properties Vantage points

  3. Example of Path Prediction Actual path: RTT 298 ms Predicted path: RTT 310 ms

  4. iPlane Nano Routers End-hosts Links • Compact representation of Internet performance • Store only unique set of inter-PoP links seen across traceroutes • Inferred routing policy and link properties (latency and loss rate) • All of the above data in less than 10MB Vantage points

  5. iPlane Datasets • All data (including historical) online http://iplane.cs.washington.edu • Traceroutes (updated daily) • More than 3TB of historical data (Hard for anyone to download!) • Clusters of aliases • IP to PoP mapping • AS mapping – both per-prefix and per-IP • Inter-PoP links with latencies and loss rates

  6. Work using iPlane In deployment for 3.5 years Used in projects at more than 40 institutions • Content distribution (Google) • Voice-over-IP (EQO) • P2P video (NBA) • Detour routing (UMD) • FlexLab (Utah) • P2P video (Tsinghua) • Informed BitTorrent tracker (Northwestern) • Improving Tor (Colorado) • BitTorrent simulator (VU) • Evolution of AS Topology (UCLA) • Compact representation of routing policies (UMass) • Optimize ISP peering (CMU) • Study of prefix hijacking (Cornell) • Topology generator (UBC) • Alias resolution (UMD) • Inter-ISP relationships (CMU) • Nation-state routing (Princeton) • … several others …

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