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Measurements on Internet2

Measurements on Internet2. Matt Zekauskas matt@internet2.edu IBM Internet2 Day 26 July 2001. Overview. Our Philosophy: Openness What’s available? Also collaborators… Measurement projects using Internet2 Measurements of the Abilene backbone End to End Performance

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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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