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Features of the new TCP/IP link between HK and Beijing (Guangzhou)  

Features of the new TCP/IP link between HK and Beijing (Guangzhou)  . Justin Waiman MA Hong Kong, China. ISS/Expert Team on WIS-GTS Communication Techniques and Structure (ET-CTS) TOULOUSE, France, 26 - 30 MAY 2008. Hong Kong – Beijing Circuit. Link established since early 70 ’ s

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Features of the new TCP/IP link between HK and Beijing (Guangzhou)  

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  1. Features of the new TCP/IP link between HK and Beijing (Guangzhou)   Justin Waiman MA Hong Kong, China ISS/Expert Team on WIS-GTS Communication Techniques and Structure (ET-CTS)TOULOUSE, France, 26 - 30 MAY 2008

  2. Hong Kong – Beijing Circuit • Link established since early 70’s • Routed through Guangzhou • Original bandwidth 64kbps DDN link • IP-based, FTP • Meteorological data exchange – global, regional and local (Guangzhou) ISS/Expert Team on WIS-GTS Communication Techniques and Structure (ET-CTS)TOULOUSE, France, 26 - 30 MAY 2008

  3. Hong Kong –Beijing Circuit Hong Kong ISS/Expert Team on WIS-GTS Communication Techniques and Structure (ET-CTS)TOULOUSE, France, 26 - 30 MAY 2008

  4. Khabarovsk Washington 64K Part of the RAII Regional Meteorological Telecommunication Network as of 15 December 2007 IMTN-MDCN CIR<32/768K> Novosibirsk 14.4-28.8K (V.34) via Moscow 14.4-28.8K (V.34) 768K 28.8-9.6K (V.34) PyongYang Ulaanbaatar Tokyo 14.4K 64K CMA PCVSAT EUMETSAT 1M IMTN MDCN MPLS 32K 2M MPLS 2M 2M Beijing F/R CIR <16/16K> F/R CIR <32/32K> IMTN MDCN MPLS 2M Seoul 2M F/R CIR <16/16K> Offenbach 64K 64K 75 Internet Hong Kong CMA PCVSAT Macao ISDN 128K Melbourne CMA PCVSAT Hanoi 1M 100 IMTN MDCN MPLS Moscow 128K F/R CIR <16/16K> Vientiane 9.6K F/R CIR <16/16K> IMTN-MDCN CIR<16/32K> Yangon 1200 64K 50 Manila Bangkok Internet Phnom Penh Melbourne F/R CIR <16/16K> F/R CIR <16/16K> Singapore Kuala Lumpur ISS/Expert Team on WIS-GTS Communication Techniques and Structure (ET-CTS)TOULOUSE, France, 26 - 30 MAY 2008

  5. Feature of the new HK-GZ Link • Implemented on 22 May 2008 • 4M guaranteed bandwidth both upstream and downstream • 60 times faster than the original one • Ethernet based interface • Bandwidth partitioning by QoS at router level • Support Multi-Points solution for extend to other sites in the future. ISS/Expert Team on WIS-GTS Communication Techniques and Structure (ET-CTS)TOULOUSE, France, 26 - 30 MAY 2008

  6. HK-GZ GTS network connection Guangdong Meteorological Bureau Hong Kong Observatory International Ethernet 4M Metro Ethernet CISCO2821 4M MSTP 4M Server Server Server Fire Wall / DMS Fire Wall Server Video Conference Unit Video Conference Unit ISS/Expert Team on WIS-GTS Communication Techniques and Structure (ET-CTS)TOULOUSE, France, 26 - 30 MAY 2008

  7. HK-GZ GTS network connection • Local access network: Metro-Ethernet • Core network: International Ethernet • Service delivery over VPLS (Virtual Private LAN Service) based network • Layer 2 private network • Provider network acts as a bridge • Advantages: • LAN environment • Multipoint to multipoint • Flexible bandwidth allocation which ranges from 1Mbps to 1Gbps ISS/Expert Team on WIS-GTS Communication Techniques and Structure (ET-CTS)TOULOUSE, France, 26 - 30 MAY 2008

  8. Physical layer Setting • Technology: SDH (Synchronous Digital Hierarchical) over optical fibre • Topology: Ring • High resilience • Self healing ISS/Expert Team on WIS-GTS Communication Techniques and Structure (ET-CTS)TOULOUSE, France, 26 - 30 MAY 2008

  9. Physical layer ISS/Expert Team on WIS-GTS Communication Techniques and Structure (ET-CTS)TOULOUSE, France, 26 - 30 MAY 2008

  10. Current Status and Looking Forward • Being use for real time meteorological data exchange • Planned to configure for different channels for large volume data exchange (e.g. raw radar data) and video conferencing ISS/Expert Team on WIS-GTS Communication Techniques and Structure (ET-CTS)TOULOUSE, France, 26 - 30 MAY 2008

  11. Thank you

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