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Largest Active Measurements Network: RIPE Atlas
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Largest Active Measurements Network: RIPE Atlas


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Presentation given by Vesna Manojlovic at SEE 2, Skopje, Macedonia on 23 April 2013.

Presentation given by Vesna Manojlovic at SEE 2, Skopje, Macedonia on 23 April 2013.

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  • 1. RIPE Atlas:the Largest ActiveMeasurementsNetworkSEE2 meeting, SkopjeVesna ManojlovicRIPE NCC1Friday, April 19, 2013
  • 2. RIPE AtlasDeployment22Friday, April 19, 2013
  • 3. RIPE Atlas Now (April 2013)• 2,900+ probes are up and running_1,048+ IPv6-capable probes• Data of built-in measurements available to everyone_In form of maps, tables, public probes data andAPI to download raw data• Four types of customised measurements available tohosts and RIPE NCC members:ping, traceroute, DNS, SSL• Major benefit: look at your netowrk from the outside!• Anyone can become a RIPE Atlas probe host:apply now at, April 19, 2013
  • 4. RIPE Atlas Coverage• Probes deployed in 108 countries• Network coverage criteria for distribution: varied ASNs andIP prefixes• RU NL UA IT PL AT AU ES FI IE GR HU CA21242427283232334044454545565759646466801131881932092212454364Friday, April 19, 2013
  • 5. Measuring Hurricane Sandy with RIPE Atlas• Most RIPE Atlas probes in affected areaunavailable during Hurricane Sandy• Traffic partially shifted away from NYC as a transithub5, April 19, 2013
  • 6. RIPEstat: Probes Per ASN, IP Prefix or Country66Friday, April 19, 2013
  • 7. RIPE Atlas Probe: 3rd Generation• TP-Link TL-MR3020• Powered from normal USB port (500mA)• 32 MB RAM, 4 MB flash built-in, 4GBflash on USB stick• Runs OpenWRT• 400 MHz MIPS CPU with MMU• A reboot takes about 1 minute• An SSH connection takes less thantwo seconds• Firmware is updated remotely, both onthe built-in flash & on the USB stick77Friday, April 19, 2013
  • 8. RIPE Atlas Anchors• Anchors are powerful probesand well-known targets– Pilot started in September 2012– Currently 11 anchors deployed– Goal: ~50 deployed in 201388Friday, April 19, 2013
  • 9. RIPE Atlas: for LIRs/ RIPE NCC members• One-click measurement"Test your IPv6"• Get 1,000,000 credits• Apply for the probevia LIR Portal• Quick Lookmeasurements (soon)99Friday, April 19, 2013
  • 10. More News• 6 new sponsors in 2013• One-off measurements introduced to testers• REST API available for creating measurements• Community pages (Top-10 users, photos)• GitHub Community Repository available• Established cooperation with interested users:regulators, researchers, operators1010Friday, April 19, 2013
  • 11. RIPE Atlas is grateful to our sponsors..., April 19, 2013
  • 12. New Arrivals to the Community12, April 19, 2013
  • 13. • Get a probe:• Community pages:• Mailing list for active users:• Questions:• Twitter: #RIPEAtlas & @RIPE_Atlas• Community Builder: Vesna Manojlovic: BECHA@ripe.nethttps://atlas.ripe.netRIPE Atlas: Contact1313Friday, April 19, 2013
  • 14. Questions?14Friday, April 19, 2013
  • 15. Background Info -How Atlas Works15Friday, April 19, 2013
  • 16. • For accurate maps we need many vantage points- Small probes- Easily deployable- USB powered- 24 x 365 capable• Hosted and sponsored by organisations and end-users- ISPs, Internet Exchange Points, individuals...- Free of charge for volunteers who host individual probesHardware Devices: Probes1616Friday, April 19, 2013
  • 17. Who Can Perform Which Measurements?• RIPE NCC is performing “built-in” measurements_From all the probes, towards root name servers and ourinfrastructure_Periodically: few times a day (55 million / day)_pings, traceroutes and DNS queries_Data stored on Hbase/Hadoop clusters_Results available to everyone!• Probe hosts and RIPE NCC members performcustomised measurements using the targets of theirchoice and desired frequency_(5 million / day)• Anchoring measurements coming up soon_Each probe will measure 4-5 “anchors” as a regional baseline_RIPE Atlas anchor hosts can perform their own customizedmeasurements 1717Friday, April 19, 2013
  • 18. Credits System• By hosting a probe, a host earns credits_As a reward for making his/her probe available to other users, forperforming measurements from that probe towards any target_Hosts earn 21,000+ credits per day, as long as the probe is connected• In order to schedule customised measurements, users spendcredits_ping costs 10 credits, traceroute 20, etc._Daily limit applies• Credits system introduced to ensure fairness and protectsystem from overload• Extra credits can be earned by: being a RIPE NCC member,hosting a RIPE Atlas anchor or sponsoring multiple probes1818Friday, April 19, 2013
  • 19. Results and CaseStudies19Friday, April 19, 2013
  • 20. RIPE Atlas Maps: Comparing DNS RootServers RTT2020Friday, April 19, 2013
  • 21. Which Anycast Instance is Each ProbeQuerying?2121Friday, April 19, 2013
  • 22. Where is D-root?2222Friday, April 19, 2013
  • 23. 23Details of Customised Measurements23Friday, April 19, 2013
  • 24. Case Studies of RIPE Atlas Usage• Testing an occasional operational issue to verify DNS responses from a number ofwidely distributed measurement points• A Case Study of IPv6 /48 Filtering, Emile Aben• IPv6 reachability testing before and during World IPv6 Launch• Correlating Routing Configuration Changes with Forwarding ChangesDavid Lebrun, University of Louvain, Belgium• Discovering Path MTU Black Holes on the Internet Using RIPE AtlasMaikel de Boer, Jeffrey and, April 19, 2013