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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

Measurements on Internet2

Matt Zekauskas

matt@internet2.edu

IBM Internet2 Day

26 July 2001

overview
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
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

measurement projects
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 projects1
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

host focus measurement project
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

others
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

universities
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
  • 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
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

passive characterization
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
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
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
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
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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