1. etomic: a pan-European testbed Péter Hága Collegium Budapest Institute for Advanced Study

2. ETOMIC the European Internet experimentation infrastructure www.etomic.org Best Testbed Award The E uropean T raffic O bservatory M easurement I nfrastru C ture (etomic) was created in 2004-05 within the Evergrow Integrated Project. Since 2005 it is also part of a national programme Center for Comm. Net. Data Analysis ( ~ 3 M€) Its goals: – to provide open access, public testbed for researchers experimenting the Internet –to serve as a Virtual Observatory active measurement data on the European part of the Internet History

3. ETOMIC the European Internet experimentation infrastructure www.etomic.org Founders Built by the Center for Communication Network Data Analysis (CNDA). Central management system by Navarra University, Spain The measurement stations are hosted by European Universities in the Evergrow project, EuroLab members, MoMe members, associate partners of CNDA

4. Experimental sites

5. ETOMIC the European Internet experimentation infrastructure www.etomic.org Eurolabs Collaboration an etomic station is hosted in the Eurolabs laboratory in Brussels the etomic station arrived at Université Libre de Bruxelles in the summer of 2005 reached the fully operational state in the autumn of 2005

6. ETOMIC the European Internet experimentation infrastructure www.etomic.org Eurolabs Collaboration

7. ETOMIC the European Internet experimentation infrastructure www.etomic.org Eurolabs Collaboration

8. ETOMIC the European Internet experimentation infrastructure www.etomic.org Hardware architecture Each station consists of: –Server PC architecture –DAG 3.6 GE card with packet sending capability (Endace) –own GPS antenna (Garmin) for time synchronization Repository and data processing: –Everlab IBM blade center (112 blades)

9. ETOMIC the European Internet experimentation infrastructure www.etomic.org The GEANT connection

10. ETOMIC the European Internet experimentation infrastructure www.etomic.org CMS

11. ETOMIC the European Internet experimentation infrastructure www.etomic.org Web interface Available via www.etomic.orgwww.etomic.org –Account application -> own experiment design –Free access/sharing of measurement data Experiment time slot reservation for registered users Programming DAG card via the user friendly Application Programming Interface Experiments are distributed automatically to the stations

12. What kinds of services I can get? Launch an experiment step by step

13. ETOMIC the European Internet experimentation infrastructure www.etomic.org Experimental bundle

14. ETOMIC the European Internet experimentation infrastructure www.etomic.org Scheduling Experiments Time slot reservation in a calendar system for the experiments

15. ETOMIC the European Internet experimentation infrastructure www.etomic.org User experiments

16. ETOMIC the European Internet experimentation infrastructure www.etomic.org Open repository

17. ETOMIC the European Internet experimentation infrastructure www.etomic.org Database interface and schema Uploaded 2.5 billion measurements In collaboration with astrophysics Virtual Observatory efforts

18. You can get all the key environment information during your experiment Basic experiments

19. ETOMIC the European Internet experimentation infrastructure www.etomic.org One way delay ~ 10 ns measurement precision

20. Online demo: One-way delay measurement between two Etomic nodes Define and launch the experiment

21. ETOMIC the European Internet experimentation infrastructure www.etomic.org GPS visibility information

22. ETOMIC the European Internet experimentation infrastructure www.etomic.org Tracking topology changes

23. Experimental use cases Some ongoing topics

24. ETOMIC the European Internet experimentation infrastructure www.etomic.org 1. Testing a new available bandwidth meter Upload your available bandwidth meter via the web interface. Deploy it to the sites of your choice. Book measurement time and schedule your experiment.

25. ETOMIC the European Internet experimentation infrastructure www.etomic.org 2. Transport protocol testing Upload a new protocol version as an experiment and test it in real Internet + custom designed cross traffic

26. ETOMIC the European Internet experimentation infrastructure www.etomic.org 3. Network Tomography Method: we send back-to-back packet pairs and measure their end-to-end delay at arrival with very high precision Goal : to resolve delay statistics on internal network segments too, where we do not have monitoring stations Key idea: delay correlation on the common segment for the packets in a pair

27. ETOMIC the European Internet experimentation infrastructure www.etomic.org Google Map visualization tool

28. Online demo: One-way delay measurement between two Etomic nodes Check the experiment, plot the results

29. Thank you for your attention! Visit: www.etomic. org