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

2. iPlane: An Internet-wide Information Plane 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 End-hosts Vantage points LinksRouters

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

4. iPlane Nano 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 End-hosts Vantage points LinksRouters

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 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 … In deployment for 3.5 years Used in projects at more than 40 institutions