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Status of RTH Tokyo

This document provides the current status of the Regional Telecommunication Hub (RTH) Tokyo of the Japan Meteorological Agency. It includes information on GTS links, traffic status, and network connectivity.

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Status of RTH Tokyo

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  1. Status of RTH Tokyo Japan Meteorological Agency Presented by Tatsuya Noyori Expert Team on WIS-GTS Communication Techniques and Structure (TOULOUSE, France, 26-30 MAY 2008)

  2. RTH in Region II NMC in Region II Khabarovsk 64K Moscow Washington Centre in other region 64K 64K MTN circuit Regional circuit Interregional circuit Additional circuit 64K IMTN-MDCN CIR<32/768K> 24-19.2K (V.34) Toulouse Novosibirsk 512K 14.4-28.8K (V.34) Almaty MPLS 19.2-24K (V.34) via Moscow NI No implementation 64 k 2M 9.6-26.4K (V.34) NI 768K 28.8-9.6K (V.34) 64K Non-IP link IP link Internet E-mail transmission PyongYang Bishkek MPLS Internet Ashgabad Ulaanbaatar via Moscow Tokyo 2M 9.6-26.4K (V.34) 14.4K Baghdad Tashkent 9.6-26.4K (V.34) 64K CMA PCVSAT NI EUMETSAT 19.2-24K(V.34) 1M NI IMTN MDCN MPLS 2.4K 32K Internet MPLS 512K 2M NI 2M Tehran 2M Internet Beijing F/R CIR <16/16K> IMTN MDCN MPLS F/R CIR <32/32K> Dushanbe 2M IMTN MDCN MPLS NI Offenbach 2M IMTN MDCN MPLS 128K Seoul Kabul 50 Thimpu F/R CIR <16/16K> 2M Offenbach NI 512K Kuwait 64K NI 64K 64K 75 100 NI Karachi 64K 2M Hong Kong Internet 128K Internet MPLS New Delhi Bahrain CMA PCVSAT 64K Jeddah 200 Macao Internet ISDN 128K Melbourne 2M 75 CMA PCVSAT Doha 64K MPLS NI 1200 50 Hanoi Internet 128K 1M Kathmandu 100 IMTN MDCN MPLS 50 Abu-Dhabi Internet 64K Moscow 100 Dhaka Internet 128K 64K Algiers Internet Cairo F/R CIR <16/16K> Muscat Vientiane 9.6K Colombo F/R CIR <16/16K> Internet Sanaa Internet 50 IMTN-MDCN CIR<16/32K> 64K Yangon Internet 1200 64K 200 Washington 50 Manila Male Bangkok 64K Internet Phnom Penh Melbourne 75 F/R CIR <16/16K> F/R CIR <16/16K> Singapore Kuala Lumpur Regional Meteorological Telecommunication Network for Region II (Asia) Current status as of 25 September 2007 1. Current status of the GTS -Region II (Asia)-

  3. PCCW FR Network DACOM FR Network PLDT FR Network CAT FR Network 2. GTS links connected with RTH Tokyo MTN 64kbps 128kbps Regional circuits Hong Kong Bangkok Khabarovsk 64kbps KDDI FR Network 64kbps Washington Manila Beijing Seoul Seoul Tokyo Frame Relay (FR) Network-to-network Interconnections New Delhi 192kbps Hong Kong Regional Telecommunication Hub (RTH) Tokyo 1.5 Mbps 1Mbps Manila Bangkok 64 kbps BT FR Network (Cloud I) OBS MPLS Network (Cloud II) Melbourne 1.5 Mbps 128 kbps 256 kbps Khabarovsk 2 Mbps • All links are being operated on TCP/IP basis. • Six of nine are IP over Frame Relay. • Two of nine are MPLS. Dedicated line connections New Delhi Beijing Melbourne Washington Improved MTN (Two Seamless Networks)

  4. Washington Tokyo 1.5Mbps 1.5Mbps CIR=32kbps FR CIR=768kbps 3. Traffic status of the Tokyo-Washington link 26 Mbytes/day 1160 Mbytes/day

  5. Melbourne Tokyo 256kbps 1.5Mbps CIR=16kbps FR CIR=32kbps 4. Traffic status of the Tokyo-Melbourne link 183 Mbytes/day 157 Mbytes/day

  6. Beijing Tokyo 2 Mbps 1 Mbps MPLS 5. Traffic status of the Tokyo-Beijing link 441 Mbytes/day 464 Mbytes/day

  7. MPLS 6. Traffic status of the Tokyo-New Delhi link New Delhi Tokyo 128 kbps 1 Mbps 41 Mbytes/day 1 Mbytes/day

  8. Dedicated line 7. Traffic status of the Tokyo-Khabarovsk link Khabarovsk Tokyo 64 kbps 1 Mbps 11 Mbytes/day 2 Mbytes/day

  9. FR FR CIR=16kbps CIR=16kbps 8. Traffic status of the Tokyo-Bangkok link Bangkok Tokyo 60 Mbytes/day 192kbps 128kbps 1 Mbytes/day

  10. FR FR CIR=16kbps CIR=16kbps Hong Kong Tokyo 192kbps 64kbps 9. Traffic status of the Tokyo-Hong Kong link 197 Mbytes/day 1 Mbytes/day

  11. FR FR CIR=16kbps CIR=16kbps Seoul Tokyo 192kbps 64kbps 10. Traffic status of the Tokyo-Seoul link 229 Mbytes/day 6 Mbytes/day

  12. FR FR CIR=16kbps CIR=16kbps Manila Tokyo 192kbps 64kbps 11. Traffic status of the Tokyo-Manila link 46 Mbytes/day 1 Mbytes/day

  13. UNIX Operating system CPU 1.9GHz X 4 Memory 8GB UNIX Operating system CPU 1.9GHz X 4 Memory 8GB GTS links Internet 12. GTS facilities in RTH Tokyo -Conceptual design- Message/File Switching System Back-end system • Central telecommunication facility in JMA was fully replaced in October 2005. • The new GTS switching system is composed by two UNIX servers in a cluster. Message editing Fax format conversion BUFR encode & decode Shared disk WMO monitoring cluster control NWP system Intranet systems Major functions supporting GTS operations + Message and Fax exchanges by both socket and so-called batched ftp through GTS + File exchanges by ftp through GTS + Collection of observational data by e-mail via the Internet

  14. Internet ISP #1 ISP #2 Multi-homed connections for reliability 20Mbps 20Mbps Packet Shapers JMA Intra-net Router Controllers Firewalls Load Balancer DMZ Public Servers FTP Servers 13. JMA Internet Connection • Multi-homed connections to Internet with two dedicated links since 2001 • Two 20 Mbps links in operation: one since February 2005, the other since March 2006 ISP #1 ISP #2 2008 2007

  15. Thank you

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