AP Network Report Aries Hung, Min Tsai ASGC WLCG T2 Asia Workshop TIRF, Dec 2, 2006.

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/