1. Report on End-to-End Performance Workshop held at Joint Techs, Vancouver CA in July 2005 Matt Zekauskas, matt@internet2.edu APAN 20 Measurement WG 2005-08-26 Matt Zekauskas, matt@internet2.edu APAN 20 Measurement WG 2005-08-26

2. 2 Outline Purpose Description of workshop My view of outcomes Intend to put on an APAN-specific workshop at APAN 21 in Tokyo Reference: http://e2epi.internet2.edu/network-perf-wk/jt05/

3. 3 Purpose Train engineers in general performance debugging Improve deployment of Internet2s end- to-end performance tools Better NTP configurations Train engineers in the use of the tools Provide an opportunity to configure and use the tools and ask questions

4. 4 Purpose Intended to be given regionally, with attendance from university and gigapop engineers that typically dont attend major conferences This venue was, of course, different with participation from folks across the US, Canada, and around the world

5. 5 Description of Workshop: Timing Two days First half of first day is optional, Allow attendees the time, and the opportunity to ask for help, and to configure machines to be used as measurement nodes (operating systems, NTP, and installing the measurement software)

6. 6 Description of Workshop: Initial Presentations Network Measurement Tools General debugging techniques Policies and Procedures Concerns with deploying a measurement infrastructure Understanding and Configuring NTP

7. 7 Description of Workshop: Internet2 Toolset For each tool, describe What it is How to configure Use examples The tools: NDT – Network Diagnostic Tool OWAMP – One-way Active Measurement BWCTL – Bandwidth Control, a framework for throughput testing Hands-on session with tools (a practical)

8. 8 Description of Workshop: Conclusion Organizational Impact Thinking about how to integrate the tools with your operational procedures Futures: measurement frameworks What we are doing within Internet2 Joint work between Internet2 and the GEANT2 JRA1 project (currently called perfSONAR).

9. 9 Attendees 31 people US, Canada, Japan, Australia

10. 10 Post-workshop Attendee Stories Canadian participants found two different problems using NDT: System doing interrupt coalescing: causing problems with a commercial tool and NDT Remote system with inadequate buffer size Existed for a long time NDT provided proof needed to spur reconfiguration

11. 11 My view of outcomes Positive reaction from attendees Attendees were able to test into Abilene Required keys for bwctl nodes Leave with the ability to test as needed in the future Generated interest Intent to do larger deployments at home Interest to have further workshops

12. 12 My view of outcomes Questions and suggestions from audience help guide tool development Also community creation: a venue where engineers can meet others and exchange ideas

13. 13 Looking Forward to Tokyo Transpac2, Internet2, and APAN are interested in holding a workshop at APAN 21 in Tokyo Tailored to APAN network capabilities Some of same tools are deployed Also a large AMP deployment If you have any suggestions, please let me (us) know

14. 14 References The workshop website has all presentations There are also links to workbooks/cookbooks that give more details And a word document about a business case for deploying the tools http://e2epi.internet2.edu/network-perf-wk/jt05/

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