AP Network Report

Aries Hung, Min TsaiASGC

WLCG T2 Asia WorkshopTIRF, Dec 2, 2006

Site network validation

T0-T1-T2 network connectivity

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

China

• BEIJING-LCG2• RTT: 55 ms

• BEIJING-CNIC-LCG2-IA64• RTT: 55 ms

India

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?

Japan

• JP-KEK-CRC-01: • RTT: 62 ms

• JP-KEK-CRC-02: • RTT: 64 ms

• TOKYO-LCG2: • RTT: 61 ms

Workday Holiday

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

Pakistan

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?

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

Taiwan

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

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/

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

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

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

Thanks for Your Attention!

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/