1. LHC network in Asia HSIN-YEN CHEN LHCOPN workshop INFN 28 Apr 2014

2. Asia R&E Network backbone 2

3. APAN Introduction APAN (Asia Pacific Advanced Network) was first established as a non-profit international consortium on 3 June 1997 16 primary members APAN connects the research and education networks of its member countries/economies to each other and to other research network around the world APAN coordinates activities related to network technologies, services, and applications among its members and with its peer international organisations In the past few years, research and education networks of United States and Europe leap its international network bandwidth and links with Asia-Pacific. Together, the three regions are realizing a truly global ring architecture as well as driving the connectivity to the less-off regions such as Africa, Central Asia and Pacific Island

4. TAIWAN Global R&E Network 10G Chicago TAIWAN Hong Kong Amsterdam Geneva 2.5G Tokyo 10G 2.5G LA Palo Alto New York 2.5G 5G 2.5G TANet TWAREN ASNet ASGCNet 2.5G 5G 2.5G 622M 2.5G

5. ASGC HEP & e-Science resources Scientific Collaborations: HEP (WLCG & AMS), Life Sciences, Earth Sciences (Earthquake, Tsunami & Storm Surge), Climate Change, Humanity, etc. Network Aggregated 2x10G links between TW-US-AMS-CERN since Sept. 2013 RTT is ~ 280 ms 1x2.5G link to HK, for CN, JP and other Asia countries Computing Total 20,000 CPU Cores Panda+Rucio; DiCOS Cloud Storage 12PB Disk + 5 PB Tape DPM, EOS FTS3

6. ASGC e-Science Global Network SINET JP TWAREN/ TANET KREONET 20G 2.5G 10G ASGC TW HK US CERNET CN 20G 2.5G GEANT Abilene USA CERN 20G NREN EU AMS-IX NORDUnet ESNet LHCONE GE 10G GE*2 LHC OPN TEIN MYREN MY AARNet AU EARNet IN CSTNET CN ASTI PH INHEREN ID LEARN LX NREN NP PERN PK PREGINet PH SingaRE N SG UNINe tTH VinaRen VN NISN (NASA) GE 10G SURFnet CESnet STARLight GE*2 HKIX 10G ASNet HARNet HK GE CA*Net GE NL APAN-JP 2.5G

7. The 2x10G Links Running in Good Network Performance 7

8. ASGC-TEIN Network Usage ASGC-Tokyo U. Daily (5 Minute Average) Weekly (30 Minute Average)

9. WLCG & e-Science in Asia Big Science: HEP WLCG Current: AU, CN, IN, JP, KR, MY, NZ, PK, TH, TW Future: HK, SG, VN APROC e-Science Communities Life sciences, Medical, Earthquake, Tsunami, Climate changes, Cultural heritages, Agriculture, etc.

10. Network Challenges in Asia Routing Complexity BGP peering can be realized among NRENs, if agreed bilaterally Network Performance TCP Throughput <= TCPWinSize/RTT Asian TierXs must tune server and client TCP kernel parameters to get better throughput LHCONE could help resolving the application traffic

11. 11 ESnet USA Chicago New York Amsterdam BNL-T1 Internet2 USA Harvard CANARIE Canada UVic SimFraU TRIUMF-T1 UAlbUTor McGill Seattle TWAREN Taiwan NCU NTU ASGC Taiwan ASGC-T1 KREONET2 Korea KNU LHCONE VPN domain End sites – LHC Tier 2 or 3 unless indicated as Tier 1 Regional R&E communication nexus Data communication links, 10, 20, and 30 Gb/s See http://lhcone.net for details.http://lhcone.net NTU Chicago LHCONE: A global infrastructure for the LHC Tier1 Data Center – Tier 2 Analysis Center Connectivity NORDUnet Nordic NDGF-T1a NDGF-T1c DFN Germany DESY GSI DE-KIT-T1 GÉANT Europe GARR Italy INFN-Nap CNAF-T1 RedIRIS Spain PIC-T1 SARA Netherlands NIKHEF-T1 RENATER France GRIF-IN2P3 Washington CUDI Mexico UNAM CC-IN2P3-T1 Sub-IN2P3 CEA CERN Genev a CERN-T1 SLAC GLakes NE MidW SoW Geneva KISTI Korea TIFR India Korea FNAL-T1 MIT Caltech UFlorida UNeb PurU UCSD UWisc Bill Johnston, ESNet US LHCNet

12. LHCONE networking in Asia ASGC could provide the 20Gb global backbone for Asian HEP communities ASGC has an open policy to support the networking for all LHC experiments (ATLAS, CMS, Alice, LHCb) in Asia ASGC has good connectivity with APAN (inc. KR, JP, CN, etc.) and TEIN L3VPN Asia hub

13. LHCONE Asia Workshops (Tentative) Kick-off Workshop: Co-locating with the APAN 38 th Meeting (11~15 August 2014, Nantou, Taiwan) Advantage: All Asia Pacific NRENs will be here Regular LHCONE Asia Workshop: Co-locating with the annual ISGC (International Symposium on Grids & Clouds) in March Advantage: (1) Easier for Asian NRENs to get together (2) User community & Network provider

14. LHCONE Asia Meeting in Nantou Date: 13 or 14 August 2014 (TBD) Target Audience: Asian NRENs Agenda (Tentative): 09:00~10:30 LHCONE Introduction / APAN Introduction 11:00~12:30 Meeting the needs of LHC Stakeholders 14:00~15:30 LHCONE Asia Architecture 15:30~17:00 Discussion

15. Question/Comment?