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An Overview of the TWAREN Performance Measurement Project

Detailed overview of TWAREN network infrastructure, active & passive measurement tools, monitoring systems, and goals.

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An Overview of the TWAREN Performance Measurement Project

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  1. An Overview of the TWAREN Performance Measurement Project Aug. 26, 2005 at APAN Taipei 2005 Che-nan Yang The National Center for High-performance Computing

  2. TWAREN Network Infrastructure

  3. Production Network SINICA NTU NDHU TP Optical C7609 10GE Production C7609 STM-64/OC-192 Research STM-16/OC-48 NCU C7609 C7609 GSR CCU NCTU C7609 C7609 NCKU TWAREN C7609 GSR GSR HC TP NCNU NCHU NTHU GSR NSYSU C7609 C7609 C7609 C7609 TC

  4. (#) # of Circuit 10GE STM-64/OC-192 STM-16/OC-48 Sinica GE undeploy NDHU C7609 NTU (2) Optical C7609 C7609 ONS15454 Production (2) (2) ONS15454 Research ONS15454 CCU NCU C7609 C7609 (2) (2) ONS15454 ONS15454 NCTU NCKU C7609 C7609 (2) (2) ONS15454 ONS15454 NSYSU NCNU C7609 C7609 (2) (2) ONS15454 ONS15454 Research & Optical Network Taipei GSR (2) (6) ONS15600 ONS15454 TWAREN ONS15454 ONS15454 Tainan ONS15600 (6) ONS15600 (6) (3) (3) GSR Hsinchu GSR ONS15454 (4) (2) NTHU NCHU GSR C7609 C7609 (2) Taichung (2) ONS15454 ONS15454

  5. TWAREN Network Design Goals • Hybrid technology: IP (routing) and optical (dark fiber, DWDM) • Dual networks: production (2430km) and research (1721km) networks • Hierarchical topology: 3 layers (core, PoPs, end nodes) • Providing multiple services • Highly reliable, stable and flexible

  6. TWAREN Active Measurement Tools • Active Measurement • Router node • RTT and Availability-Test among all router node pairs • Daily, Weekly and Monthly report • Server node • RTT WeathetMap • TWAREN AMP(IPv4 and IPv6) - NLANR/MNA • Multicast Beacon • One-way delay(IPv4 and IPv6) • Throughput (IPv4 and IPv6, TCP and UDP) - Ipef

  7. TWAREN Passive Measurement Tools • Passive Measurement • Netflow • Router looking glass • Router configuration • User routing policy

  8. Router node RTT

  9. Router node Availability

  10. Distance vs. RTT Speed of Light C=3x108m/s The speed of light in the medium V=C/N V = C/1.5 = 2x108m/s Link Speed v.s. Latency

  11. The Distance of Carrier Fibre

  12. RTT WeatherMap-1

  13. RTT WeatherMap-2 • Why TN to CCU(two-way) shows GREEN? - Standard data compare with the Current data - 1.396 ms vs. 2.314 ms Standard data Current data

  14. AMP Local Mesh • Led by Tony McGregor, NLANR/MNA • AMP performs site-to-site active measurements RTT, topology, loss, and on-demand throughput • Currently 17(4+11+2) of AMP Client has Operate and service • AMP-IPv4 and AMP IPv6 monitoring

  15. AMP Local Mesh Results

  16. AMP International Mesh

  17. AMP International Mesh

  18. Network performance monitoring for SDSS http://dmzmon0.deemz.net/iepm-bw/html/wan_bw_tests.html#node1.nchc_twaren.tw

  19. TWAREN Multicast deployment Status AARnet(AS7575) Abilene(AS115137) CAnet4(AS6509) GEMnet2(AS23796) KREONet2(AS17579) PacificWave(AS101) • PIM-Sparse, MBGP, MSDP protocols • Multicast connections • Peer networks：10 Seattle GSR12410 RP. Chicago GSR12406 Abilene(AS11537) KREONet2 (AS17579) NREN(AS24) STARTAP(AS22335) NTU RP. C7609 ASCC CCU TP C7609 CCIT RP. C7609 GSR NDHU C7609 YUNTECH NCTU CCU C7609 HC GSR C7609 TWAREN TN GSR NCHC-HC C7609 RP. RP. NCKU NTHU NCHC-TN C7609 RP. NCHU GSR C7609 TC C7609 C7609 NSYSU NCNU

  20. TWAREN Multicast Beacon Active measurement of : • loss (%) • delay (ms) • jitter (ms) http://measurement.twaren.net/beacon

  21. TWAREN one-way-delay Monitoring • Application created byE2Epi, Internet2 • Look for one-way latency, loss • Long-term or on-time value query • Deployed IPv4 & IPv6 one-way delay

  22. NDT • Enable users to measure performance to TWAREN directly on their desktops from website • Identify specific problem(s) that affect end users

  23. On-line Measurement Utilities • ping & ping6 • traceroute & traceroute6 • Router Looking Glass • Multicast Tester • MTR • IPAS • nslookup

  24. Goals • Make performance data publicly available. • Provide TWAREN users with detailed and real-time data of performance measurements. • Enable TWAREN users to trace the performance of TWAREN backbone and end-to-end network.

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