Measurements on internet2
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Measurements on Internet2. Matt Zekauskas [email protected] 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

[email protected]

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


Measurements on internet2

Internet2 Measurements - 26 Jul 2001


Measurements on internet2

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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