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The PingER Project: Measuring the Digital Divide

PingER. The PingER Project: Measuring the Digital Divide. Presented by Les Cottrell, SLAC At the SIS Show Palexpo/Geneva December 2003. PingER. History of the PingER Project.

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The PingER Project: Measuring the Digital Divide

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  1. PingER The PingER Project: Measuring the Digital Divide Presented by Les Cottrell, SLAC At the SIS Show Palexpo/Geneva December 2003 PingER

  2. History of the PingER Project • Early 1990’s: SLAC begins pinging nodes around the world to evaluate the quality of Internet connectivity between SLAC and other HEP Institutions. • Around 1996: The PingER project was funded making it the first Internet end-to-end monitoring tool available to the HEP community. • Today: Believed to be the most extensive Internet end-to-end performance monitoring tool in the world PingER

  3. PingER Today • Today, the PingER Project includes 35 Monitoring-hosts in 12 countries. They are monitoring Remote-hosts in 80 countries. • THESE COUNTRIES COVER 75% OF THE WORLD POPULATION AND 99% OF THE INTERNET CONNECTED POPULATION!!! PingER

  4. Methodology >ping remhost Internet Remote Host (typically a server) Monitoring host 11 ping request packets each 30 mins Ping response packets Measure Round Trip Time & Loss

  5. PingER Architecture REMOTE REMOTE REMOTE REMOTE REMOTE REMOTE REMOTE REMOTE There are three types of hosts • Remote-hosts: hosts being monitored PingER

  6. PingER Architecture Monitoring Monitoring Monitoring Monitoring REMOTE REMOTE REMOTE REMOTE REMOTE REMOTE REMOTE REMOTE There are three types of hosts • Remote-hosts: hosts being monitored • Monitoring-hosts: make ping measurements to remote hosts PingER

  7. PingER Architecture Archive Archive Monitoring Monitoring Monitoring Monitoring REMOTE REMOTE REMOTE REMOTE REMOTE REMOTE REMOTE REMOTE There are three types of hosts • Remote-hosts: hosts being monitored • Monitoring-hosts: Make ping measurements to remote hosts • Archive/Analysis- hosts: gather data from Monitoring-sites, analyze & make reports PingER

  8. Worldwide performance • Performance is improving • Developed world improving factor of 10 in 4-5 years • S.E. Europe, Russia, catching up • India & Africa worse off & falling behind • Developing world 3-10 years behind • Many institutes in developing world have less performance than a household in N. America or Europe

  9. Current State – Aug ‘03 (throughput Mbps) Monitoring Country • Within region performance better • E.g. Ca|EDU|GOV-NA, Hu-SE Eu, Eu-Eu, Jp-E Asia, Au-Au, Ru-Ru|Baltics • Africa, Caucasus, Central & S. Asia all bad Remote regions Acceptable > 500kbits/s, < 1000kbits/s Bad < 200kbits/s < DSL Poor > 200 < 500kbits/s Good > 1000kbits/s

  10. Loss Comparisons with Development (UNDP) Positive correlation with Human Development or GDP

  11. Network Readiness Index vs Throughput • NRI from Center for International Development, Harvard U. http://www.cid.harvard.edu/cr/pdf/gitrr2002_ch02.pdf NRI Top 14 Finland 5.92 US 5.79 Singapore 5.74 Sweden 5.58 Iceland 5.51 Canada 5.44 UK 5.35 Denmark 5.33 Taiwan 5.31 Germany 5.29 Netherlands 5.28 Israel 5.22 Switzerland 5.18 Korea 5.10 A&R focus Internet for all focus • NRI correlates reasonably well with Network Readiness

  12. Typical uses • Troubleshooting • Discerning if a reported problem is network related • Identify the time a problem started • Provide quantitative analysis for Network specialists • Identifying step functions, periodic network behavior, and recognize problems affecting multiple sites. • Setting expectations • Identifying need to upgrade • Providing quantitative information to Policy makers & Funding agencies • Seeing the effects of upgrades PingER

  13. In Summary PingER provides ongoing support for monitoring and maintaining the quality of Internet connectivity for the world wide scientific community. Information is available publicly on the web www-iepm.slac.stanford.edu/cgi-wrap/pingtable.pl PingER also quantifies the extent of the “Digital Divide” and provides information to policy makers and funding agencies. PingER

  14. For More Information • We need contacts in developing countries • (send email to iepm-l@slac.stanford.edu) • PingER: • www-iepm.slac.stanford.edu/pinger/ • eJDS • www.ejds.org/ • ICFA/SCIC Network Monitoring report, Jan03 • www.slac.stanford.edu/xorg/icfa/icfa-net-paper-dec02 • Monitoring the Digital Divide, CHEP03 paper • http://arxiv.org/ftp/physics/papers/0305/0305016.pdf • The PingER Project: Active Internet Performance Monitoring for the HENP Community, IEEE Communications Magazine on Network Traffic Measurements and Experiments. PingER

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