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AP Network Report
Aries Hung, Min TsaiASGC
WLCG T2 Asia WorkshopTIRF, Dec 2, 2006
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Site network validation
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T0-T1-T2 network connectivity
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Australia
• Australia-UNIMELB-LCG2:• RTT: 137 ms – 340 via US• July 2006, establish peering with AARNet at Singapore.
• Alter routing path • from ASNet-TW ASNet-US AARNet Australia-UNIMELB-LCG2 • to ASNet-TW ASNet-SG AARNet Australia-UNIMELB-LCG2
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China
• BEIJING-LCG2• RTT: 55 ms
• BEIJING-CNIC-LCG2-IA64• RTT: 55 ms
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India
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India
• IN-DAE-VECC-01:• 320 ms• Routing path:
• ASNet-TW ASNet-HK Flag RIL-IDC ERNet-IN INDAE-VECC-01
• INDAE-VECC-01 ERNet-IN Geant2 Internet2 TWAREN ASNet-TW
• INDIACMS-TIFR: • 280 ms• Routing path:
• ASNet-TW ASNet-HK Flag RIL-IDC ERNet-IN INDAE-VECC-01
• INDAE-VECC-01 ERNet-IN Geant2 Internet2 TWAREN ASNet-TW
• Issues• Could ERNet-IN prefer AS route from RIL-IDC and Flag?
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Japan
• JP-KEK-CRC-01: • RTT: 62 ms
• JP-KEK-CRC-02: • RTT: 64 ms
• TOKYO-LCG2: • RTT: 61 ms
Workday Holiday
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Korea
• LCG_KNU: • RTT: 84 ms• Sep. 2006, alter route path of SE endpoint network segment
(go through HK), RTT: 58 ms now.• Could 155.230.0.0/16 go through HK?
Holiday
Workday
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Pakistan
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Pakistan
• NCP-LCG2: • 240 ms• Nov. 2006, alter route path
• from ASNet-TW ASNet-US AT&T UUNet ITIKarachi NTCPKNet NCP-LCG2
• to ASNet-TW ASNet-HK ANC SingTel NTCPKNet NCP-LCG2
• PAKGRID-LCG2: • 348~387 ms• many icmp checksum error (firewall restriction?)• Could NTCPKNet advertise route info to SingTel?
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Singapore
• GOG-Singapore:• RTT: 49 ms• July 2006, alter routing path
• from ASNet-TW ASNet-HK ANC-HK ANC-SG GOG-SingAREN
• to ASNet-TW ASNet-SG SingAREN ANC GOG-SingAREN
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Taiwan
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Taiwan domestic
• Taiwan-IPAS-LCG2:• < 1 ms
• TW-FTT:• < 1 ms
• TW-NIU-EECS-01: • 9 ms
• Taiwan-NCUCC-LCG2: • 17 ms
• TW-NCUHEP: • 11 ms
• TW-NTCU-HPC-01: • 5 ms
• TW-THU-HPC: • 5 ms
Daytime
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Network monitoring
• Monitoring tools• Smokeping -- latency measurement tool• Nagios -- host, service and network monitoring program • MRTG• WeatherMap
• Evaluation• PerfSonar: http://www.perfsonar.net/• IEPM: http://www-iepm.slac.stanford.edu/
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Other issues
• Info collection• Contact info of site network manager• Contact info of circuit provider (optional)• Network map, include bandwidth (WAN & LAN)• Firewall rules
• Open ICMP access to ASGC (140.109.98.0/24 and 202.169.168.0/22)
• If possible, enable iPerf daemon on one server for testing
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ASGC future plan
• T0-T1 connectivity: • Upgrade to 10Gb (2007 Q2)
• T1-T2 connectivity:• TW-JP: Upgrade to 2.5+Gb• TW-HK: Upgrade to 2.5+Gb• TW-SG: Upgrade to 622+Mb
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ASNet POPs
• Taiwan• Juniper M160, Juniper M320• Located in Academia Sinica
• HongKong• Juniper M20• Located in Mega-iAdvantage
Building (in Chai-wan area)• Japan
• Juniper M20• Located in KDDI Building (sa
me as APAN building, in Otemachi-Ku area)
• Singapore• Juniper M7• Located in SingAREN GIX Buil
ding• America
• Juniper T320, located in Palo Alto PAIX Building
• Juniper M40e, located in StarLight
• Netherlands• Juniper M20• Located in SARA
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Thanks for Your Attention!
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Reference
• ASGC Smokeping: • http://osadm.grid.sinica.edu.tw/smokeping/
• Smokeping: • http://oss.oetiker.ch/smokeping/index.en.html
• Nagios: • http://www.nagios.org/
• MRTG: • http://oss.oetiker.ch/mrtg/
• WeatherMap: • http://netmon.grnet.gr/weathermap/