Measurements on Internet2

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Presentation transcript:

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 We will be looking for collaborators soon Internet2 coordinates, members do work Internet2 Measurements - 26 Jul 2001

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

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

Measurement Projects PingER (round-trip delay, routing) NIMI 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

Host Focus Measurement 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

Others Pioneer Mantra 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

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

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

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

Internet2 Measurements - 26 Jul 2001

Internet2 Measurements - 26 Jul 2001

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

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

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

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

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