RIPE Atlas, A “Real Big” Measurement Network"

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presentation given by Róbert Kisteleki at NANOG 51 on 2 February 2011

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RIPE Atlas, A “Real Big” Measurement Network"

  1. 1. RIPE Atlas!A “Real Big” Measurement Network "Robert Kisteleki!Science Group Manager, RIPE NCC!robert@ripe.net!
  2. 2. Introduction"RIPE Atlas:"•  There are many Atlases, this is RIPE Atlas"•  A prototype system for a next generation Internet measurement network" -  To scale to thousands of measurement nodes" -  Potentially “be everywhere”" -  Started last November, we’re still just building it" 2!
  3. 3. Intuition: 1000 Probes" 3!
  4. 4. Intuition: 5000 Probes" 4!
  5. 5. Intuition: 10k Probes" 5!
  6. 6. Intuition: 20k Probes" 6!
  7. 7. Intuition: 50k Probes" 7!
  8. 8. Intuition: 10k Probes & 1 AS" 8!
  9. 9. Ambitious Community Effort" Instead of building small, separate, individual & private infrastructures, " build a huge common infrastructure" that serves both the private goals " and the community goals. " 9!
  10. 10. Ambitious Community Effort"•  Individual Benefits" -  Lessexpensive than rolling your own" -  More vantage points available" -  More data available"•  Community Benefits" -  Unprecedented situational awareness" -  Wealth of data, …" 10!
  11. 11. Intuition -> Plan"•  For accurate maps we need more probes"•  Deploying very many TTM boxes too expensive"•  Smaller probes "•  Easily deployable"•  USB powered"•  24 x 365 capable" 11!
  12. 12. Probe Deployments" 12!
  13. 13. Versions"•  Version 0" -  Ping to fixed targets (IPv4 & IPv6) !" -  Traceroute to 1st two upstream hops !"•  Version 1" -  Ping& Traceroute to variable targets" -  DNS queries to variable targets"•  Version 2" -  Your ideas ?"•  Upgrades are automatic" 13!
  14. 14. Network extent" 14!
  15. 15. Network extent" 15!
  16. 16. Network extent" updated hourly on" 16!
  17. 17. Hosting = Credits = Measurements" 17!
  18. 18. Hosting = Credits = Measurements" 18!
  19. 19. Sponsorship = Credits = Measurements" 19!
  20. 20. Measurement nodes – “Probes”"•  Probe (v1 / generation 1):" -  Lantronix XPortPro" -  Very low power usage" -  8MB RAM, 16MB flash" -  Runs uClinux" -  No FPU, no MMU" -  A reboot costs <15 seconds" -  An SSH connection costs ~30 seconds" -  We can remotely update the firmware" 20!
  21. 21. What’s this got to do with DNS?"•  We’re already doing built-in RTT measurements to some DNS root servers, on IPv4 and IPv6"•  We plan further DNS checks in next versions" -  Reachability(RTT) to specified DNS servers" -  Possibly TCP/UDP checks" -  Anycast instance checks"•  We’re open to suggestions" -  What kind of DNS related checks would you do if you had many vantage points at your disposal?" 21!
  22. 22. Questions?"

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