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International IP Backbone of Taiwan Academic Networks

International IP Backbone of Taiwan Academic Networks. Wen-Shui Chen & Yu-lin Chang APAN-TW NOC @ APAN 2003 Academia Sinica Computing Center, Taiwan. Current International Connections. Japan – 155Mbps (Operated by ASCC) Japan R&E networks (APAN, SINet, KEK, Spring-8, CN-CERNet, ...)

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International IP Backbone of Taiwan Academic Networks

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  1. International IP Backbone ofTaiwan Academic Networks Wen-Shui Chen & Yu-lin Chang APAN-TW NOC @ APAN 2003 Academia Sinica Computing Center, Taiwan

  2. Current International Connections • Japan – 155Mbps (Operated by ASCC) • Japan R&E networks (APAN, SINet, KEK, Spring-8, CN-CERNet, ...) • NSPIXP-6 for IPv6 peering with Japan’s IPv6 ISP • Hong Kong – 155Mbps (Operated by ASCC) • Hong Kong (HARNet) • US-West – 622Mbps (Operated by MOECC+ASCC+NCHC) • PAIX for commercial ISP transit and peering • Pacific Northwest GigaPoP for Internet-2 • US-East – 622Mbps (Operated by ASCC) • StarLight for next generation lambda-networks (Abilene, MREN, CERN, CA*Net4, ESNet, SURFnet, EU DataTAG, NORDUnet ...) • Europe-UK – 155Mbps (Operated by ASCC) • DANTE/GEANT for UK & European R&E networks

  3. US-West Japan US-East 622Mbps 155Mbps 622Mbps 155Mbps Hong Kong HARNet Europe-UK 155Mbps Current International Connections

  4. From Users’ Point of View • TANet • Internet-1 (commercial) connection to U.S.- West (Seattle) • The term of “User Communities” • TANet2 • Internet-2 (R&E) connection to U.S.-West (PNW GigaPoP @ Seattle) and STARTAP • ASNet • Asian connections • APAN networks (Tokyo, lots of ) • Hong Kong networks • European connections • StarLight member networks (Chicago, lots of European nets)

  5. International Link Design Principle • Research and education use first • Fast recovery and self protection • Minimize latency • Minimize transit hops

  6. Research and education use first • No bandwidth limit for R&E use • Large margin for burst traffic • Grid computing • Virtual laboratory • Earth observation • Digital contents • ... • Special configuration can be done on demand

  7. Fast recovery and self protection • Multi-path design • Diverse routes, backup each other • Minimize path switchover overhead • IGP (such as OSPF, is-is, ...) may take tens seconds to re-compute new path • Enable MPLS-Fast-Reroute to minimize the outage windows of path switchover • End-to-end Self-healing • Extend self-healing protection mechanism from the IPL-ADM to routers • APS 1+1 on SONET • MSP 1+1 on SDH

  8. Minimize latency • Why? • Standard TCP transfer rate is highly depends on end-to-end latency • Virtual laboratory and real time works also sensitive to latency • Shortest IPL path first • route-once; switch-many • Layer-3 routing table lookup will generate large latency • Reconstruct MPLS-LSP tables to make domestic and international backbone work together to avoid Layer-3 routing • Layer-2 forwarding table lookup will generate a little latency • vender proprietary circuit-layer functions to avoid Layer-2 forwarding table lookup, for example • Cisco’s Frame-Relay-Switching (on Packet over SONET/SDH line) • Juniper’s Circuit-Connection and Translated-Circuit-Connection

  9. Recent project before the end of this year • Taiwan to U.S. West coast • Joint project of TANet, TANet-2, and ASNet • Estimated bandwidth is 3.1 Gbps (5 * STM-4) • Replace the exist Taipei-Seattle IPL (622 Mbps) • Taiwan to Japan • Upgrade the exist APAN TW-TokyoXP link (155 Mbps) • New bandwidth is not fully confirmed yet • Taiwan to Hong Kong • Upgrade the exist TW-HARNet link (155 Mbps) • New bandwidth is not fully confirmed yet

  10. 10GE 5GE fiber 10GE or fiber Topology of TWAREN • Backbone: 80 G • GigaPoPs: 145 G • Dark Fiber: 6 Sinica NTU NCU Taipei 20G NCTU NTHU Hsinchu 10G 20G NDHU NCTHU Taichung NCNU 20G 10G CCU Tainan NCKU NSYSU

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