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

2. 2 TWAREN Network Infrastructure

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

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

5. 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. 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. 7 TWAREN Passive Measurement Tools Passive Measurement Netflow Router looking glass Router configuration User routing policy

8. 8 Router node RTT

9. 9 Router node Availability

10. 10 Distance vs. RTT Link Speed v.s. Latency Link Speed64 Bytes1500 Bytes 64kbps8ms140.625ms T10.331606ms5.829016ms T30.011445ms0.20118ms FE0.00512ms0.09ms GE0.000512ms0.009ms 10GE0.0000512ms0.0009ms Speed of Light C=3x10 8 m/s The speed of light in the medium V=C/N V = C/1.5 = 2x108m/s DistanceRTT 50KM0.5ms 100KM1ms 200KM2ms 300KM3ms 400KM4ms

11. 11 The Distance of Carrier Fibre CORE CHT wCHT pEBT wEBT p TPHC127.2117.6158.6129.8 TPTN599.9440403.1370.6 HCTC203.6130.6 HCTN516.1354.6256.7261 TCTN313.5228 POPCORECHT wCHT pEBT wEBT p TPNTU6.54637.39 TPNDHU266.3301.6248.4240.5 TPNCU93.712777.278.5 TPAS23.728.846.534.5 TCNCHU10.611.433.550.7 TCNCNU112.6277.6 TNCCU94.9256.796.396.4 TNNCKU27.9319.321.129.8 TNNSYSU110.4238.680.195.8 HCNCTU6.36.616.54 HCNTHU9.6 20.26

12. 12 RTT WeatherMap-1

13. 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 POP TN TNCCUNCKUNSYSU TN 2.325 0.4161.463 CCU 2.314 NCKU0.412 NSYSU1.471 POP TN TNCCUNCKUNSYSU TN 1.403 0.441.5 CCU 1.396 NCKU0.416 NSYSU1.454 Current data Standard data

14. 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. 15 AMP Local Mesh Results

16. 16 AMP International Mesh

17. 17

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

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

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

21. 21 TWAREN one-way-delay Monitoring Application created by E2Epi, Internet2 Look for one-way latency, loss Long-term or on-time value query Deployed IPv4 & IPv6 one-way delay

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

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

24. 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.