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Measurements on Internet2

This article provides an overview of Internet2 measurements, including the philosophy of openness, available measurement projects, and the search for collaborators. It discusses measurement goals, projects such as Surveyor, AMP, PMA, PingER, NIMI, Web100, and others, as well as the involvement of universities and the Abilene backbone. The article also highlights passive and active measurements, utilization and characterization, packet tracing, and other measurement initiatives.

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Measurements on Internet2

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  1. Measurements on Internet2 Matt Zekauskas matt@internet2.edu IBM Internet2 Day 26 July 2001

  2. Overview • Our Philosophy: Openness • What’s available? Also collaborators… • Measurement projects using Internet2 • Measurements of the Abilene backbone • End to End Performance • We will be looking for collaborators soon • Internet2 coordinates, members do work Internet2 Measurements - 26 Jul 2001

  3. Measurement Goals • Support Operations • Performance, Utilization: status & debug • Network Engineering • Trends, Characterization • Network Research • Characterization, Performance, Utilization • Feedback to applications? Internet2 Measurements - 26 Jul 2001

  4. Measurement Projects • Surveyor (one-way delay, loss, routing) • www.advanced.org/surveyor • On many Internet2 campuses (70 sites) • Abilene presence • AMP (round-trip delay, loss, routing) • moat.nlanr.net/AMP : UCSD, Waikato (NZ) • At even more Internet2 campuses (120 sites) • PMA (passive, packet traces) • moat.nlanr.net/PMA : UCSD, Waikato (NZ) • 1 min, 8 times a day, ~13 sites Internet2 Measurements - 26 Jul 2001

  5. Measurement Projects • PingER (round-trip delay, routing) • http://www-iepm.slac.stanford.edu/pinger/ • Long term data from a few locations to many • High-energy physics focus : SLAC, DoE, XIWT • NIMI • http://www.ncne.nlanr.net/nimi/ : PSC, Wisc • Designed to be platform for experiments • Undergoing some redesign/revitalization • ~ 60 sites? Internet2 Measurements - 26 Jul 2001

  6. Host FocusMeasurement Project • Web100 • www.web100.org : PSC + NCAR + NCSA • Instrument TCP stack • Tunable (auto-tunable?) host parameters • Remove host / OS as bottleneck (for network activity… disk? app?) Internet2 Measurements - 26 Jul 2001

  7. Others • Pioneer • http://pelle.internet2.edu:8080/pioneer/ • Synthesis of existing infrastructure • Focus: video conferencing tests • “application-level” example • Mantra • http://www.nmsl.cs.ucsb.edu/ • Multicast network health Internet2 Measurements - 26 Jul 2001

  8. Universities • PSC/CMU: NCNI+NIMI+Web100 / TCP • UCSD: NLANR Passive, and Active • U Waikato: Passive monitoring technology, lead on AMP • Wisconsin: unify infrastructures, passive + active + web tests (Barford) • Tennessee: Network Weather Service • PI moving to UCSD (Wolski) • Indiana: Abilene, and discovering layer2 • …and many others Internet2 Measurements - 26 Jul 2001

  9. Abilene • Abilene goal to be an exemplar • Measurements open • Tests possible to router nodes • Web-mediated on-demand measurements • Throughput tests routinely through backbone • …as well as existing utilization, etc. Internet2 Measurements - 26 Jul 2001

  10. Passive - Utilization • The Abilene NOC takes • Packets in,out • Bytes in,out • Drops/Errors • ..for all interfaces, publishes internal links & peering points (at 5 min intervals) • ..via SNMP polling – every 3 sec • http://hydra.uits.iu.edu/~abilene/traffic/ Internet2 Measurements - 26 Jul 2001

  11. Internet2 Measurements - 26 Jul 2001

  12. Internet2 Measurements - 26 Jul 2001

  13. Passive – Characterization • gigaPOPs & Universities doing own • Some sparse via NLANR/MOAT • http://moat.nlanr.net/PMA/ • Starting some NetFlow measurements • QoS • AS-AS information for K-12 & ITN • Intend to do some characterization Internet2 Measurements - 26 Jul 2001

  14. Packet Trace Project • NLANR MOAT/Waikato (New Zealand) • Goal: New backbone traces • Looking to deploy some OC48 monitors • Desire to fully instrument one router • NOT near term, but perhaps in 6 months… Internet2 Measurements - 26 Jul 2001

  15. Others via Abilene NOC • BGP Peering • MSDP (multicast source discovery) logging • See: http://www.abilene.iu.edu/-> Operational Status Internet2 Measurements - 26 Jul 2001

  16. E2Epi: JPL/Caltech – GSFC • The situation • Using Abilene • Tuned hosts • Things work locally • Therefore it MUST be Abilene • Tests show good flows router-router • Intermediate tests point towards CA • Bad fiber connection! Internet2 Measurements - 26 Jul 2001

  17. Summary • Lots going on • Data available • from measurement projects • from Abilene • Thus see network state for experiments using infrastructure • See also Measurement Working Group • So far, operational focus; research support in charter • http://www.internet2.edu/measurement Internet2 Measurements - 26 Jul 2001

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