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TW LCG Network Status Update Academia Sinica Grid Computing Centre TW LCG Network Status Update Academia Sinica Grid Computing Centre

Plan for Taiwan Tier-1 Network Backup Path to T 0 Primary Path to T Plan for Taiwan Tier-1 Network Backup Path to T 0 Primary Path to T 0 (will install 10 GE in 2006)

Taiwan Status • ASNet* runs one STM 16 IPLC(2. 5 G) from Taipei to Taiwan Status • ASNet* runs one STM 16 IPLC(2. 5 G) from Taipei to Amsterdam, plan to upgrade to 10 G in Q 1, 2007. • 2 GE Local loop from Amsterdam to Geneva (via Nether. Light. Path Service) • ASCC LCG facilities now have multiple GE uplinks to ASNet’s core router • ASNet connects (10 GE*N + STM 64*n) to domestic backbone, a. k. a. TANet/TWAREN joint backbone, to reach T 2’s in Taiwan. • Every T 2 in Taiwan has it’s own 10 GE link to the domestic backbone * ASNet (Academic Services Network, as#9264) is the network division and is also the network name that registered in APNIC.

International R&E Network from Taiwan US-West US-East 2. 5 G Japan 622 M TWAREN=5 International R&E Network from Taiwan US-West US-East 2. 5 G Japan 622 M TWAREN=5 G TAnet=2. 5 G ASnet=1. 2 G 2. 5 G 622 M Hong Kong 2. 5 G 155 M Singapore NL-Amsterdam

Asia Pacific Link Status • Taipei – Tokyo • STM-4 IPLC • 2*GE to Asia Pacific Link Status • Taipei – Tokyo • STM-4 IPLC • 2*GE to APAN-JP (for JP Universities) • Will have GE to Si. Net/Super. Si. Net (for KEK) • IPLC should be increased before LCG production run. • Taipei – Singapore • STM-1 IPLC to Sing. AREN (National Grid Office of Singapore)

Asia Pacific Link Status • Taipei – Hong Kong • STM-4 IPLC • GE Asia Pacific Link Status • Taipei – Hong Kong • STM-4 IPLC • GE link to CERnet, GE link to CSTnet • CERnet : China Education and Research network • CSTnet : China Science and Technology network • Maybe have GE link with KOREA (still work with KOREN engineer)

ASNet Star. Light Link (2005/07/14) Unknown Juniper M 40 e Router Force 10 E ASNet Star. Light Link (2005/07/14) Unknown Juniper M 40 e Router Force 10 E 1200 Layer 2 Switch speed= unknown to Taipei 2 * GE 2. 5 g (Carrier = Level 3 + Looking Glass) ASnet Router Star. Light Switch 2. 5 g to Amsterdam (Carrier = Global Crossing) Note: 1. The 2*GE between ASnet router and Star. Light switch are bonded by 802. 3 ad 2. IP MTU = 9174 Byte (Jumbo Frame) 3. There is no information about the location of ESnet router ESnet Router