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Status of the Global Telecommunication System connected with RTH Tokyo

Status of the Global Telecommunication System connected with RTH Tokyo. Akihiko NAKAZONO Office of International Communications. Sixth Meeting on Asia-Pacific Satellite Data Exchange and Utilization (APSDEU-6) (KMA : Seoul, 1 to 3 June 2005) Japan Meteorological Agency. Network I.

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Status of the Global Telecommunication System connected with RTH Tokyo

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  1. Status of the Global Telecommunication System connected with RTH Tokyo Akihiko NAKAZONO Office of International Communications Sixth Meeting on Asia-Pacific Satellite Data Exchange and Utilization (APSDEU-6) (KMA: Seoul, 1 to 3 June 2005) Japan Meteorological Agency

  2. Network I NetworkI Tokyo Beijing Washington Melbourne Sofia Moscow New Delhi Prague Brasilia Exeter Buenos Aires Jeddah Offenbach NetworkII Network II Nairobi Managed Toulouse data communication network Cairo Dakar Algiers XI-2004 1. Current status of the GTS -MTN- AS one of the RTH on the MTN…. • Tokyo has connectivity with four centers on the MTN • Tokyo is one of gateways interconnecting Networks I and II

  3. RTH in Region II NMC in Region II Washington 64K Moscow Centre in other region 64K MTN circuit 14.4-33.6K (V.34) Regional circuit IMTN-MDCN Novosibirsk Khabarovsk 14.4-33.6K (V.34) Interregional circuit CIR<32/768K> Additional circuit 14.4-33.6K (V.34) 14.4-33.6K (V.34) NI No implementation 9.6K Almaty 14.4 -33.6K (V.34) Via Moscow Non-IP link 14.4-33.6K (V.34) 14.4-33.6K (V.34) NI IP link Bishkek 14.4-33.6K V.34 14.4-33.6K (V.34) PyongYang Tokyo Ulaanbaatar Id V.34 Ashgabad Tashkent CMA-VSAT Id V.34 IMTN-MDCN IMTN-MDCN Offenbach CMA-VSAT NI Frame R elay Frame R elay 75 75 Baghdad CIR<8/8K> CIR< 48 / 48 K> NI Tehran IMTN-MDCN NI Beijing NI Dushanbe IMTN-MDCN NI Frame R elay Frame R elay Frame R elay 64K CIR< 48 / 48 K> Offenbach CIR<32/32K> CIR< 16 /8K> NI 75 Frame R elay 50 Kabul CIR<16/16K> Kuwait 9.6K Thimpu 64K NI 64K NI IMTN-MDCN Karachi 64 K 6 4 K Seoul Bahrain Frame R elay 64K New Delhi CIR< 16 /16K> Jeddah 128 K Frame Relay 200 50 64K CIR<16/16K> 64K Doha Kathmandu Moscow NI Internet Hong Kong Internet Abu-Dhabi 50 CMA-VSAT 64K 2 . 4 K ISDN 128K Internet 100 100 50 64K Hanoi Macao Algiers Dhaka Frame Relay Cairo Internet Muscat CIR<16/16K> Internet Internet Vientiane 9.6K 50 Frame Relay Yangon IMTN-MDCN Internet Cairo Sanaa CIR<16/16K> 64K CIR<16/32K> Colombo 1200 5 0 6 4 K Male 20 0 Melbourne Manila Bangkok Washington 75 Phnom Penh NI Melbourne 2.4 K Frame Relay CIR<16/16K> Regional Meteorological Telecommunication Network for Region II (Asia) Singapore Kuala Lumpur Current status as of December 2004 2. Current status of the GTS -Region II (Asia)-

  4. HKT FR Network DACOM FR Network PLDT FR Network CAT FR Network 3. 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 128 kbps 1.5 Mbps Manila Bangkok 14.4 -28.8 kbps BT FR Network (Cloud I) Equant FR Network (Cloud II) Melbourne 1.5 Mbps 256 kbps 64 kbps 256 kbps Khabarovsk • All links are being operated on TCP/IP basis. • Eight of nine are IP over FR. Dedicated line connections New Delhi Beijing Melbourne Washington Improved MTN (Two Seamless Networks)

  5. CIR=32kbps FR CIR=768kbps Washington Tokyo 1.5Mbps 1.5Mbps 23 Mbytes/day 4. Traffic status of the Tokyo-Washington link Tokyo to Washington (9 May 2005) 27kbps line (83% of CIR) Washington to Tokyo (9 May 2005) 233kbps line (30% of CIR) 533 Mbytes/day

  6. CIR=16kbps FR Melbourne Tokyo 256kbps 1.5Mbps CIR=32kbps 85 Mbytes/day 5. Traffic status of the Tokyo-Melbourne link Tokyo to Melbourne (9 May 2005) 16kbps line (100% of CIR) Melbourne to Tokyo (9 May 2005) 23kbps line (73% of CIR) 32 Mbytes/day

  7. FR CIR=48kbps CIR=48kbps Beijing Tokyo 256kbps 128kbps 47 Mbytes/day 6. Traffic status of the Tokyo-Beijing link Tokyo to Beijing (9 May 2005) 23kbps line (49% of CIR) Beijing to Tokyo (9 May 2005) 1kbps line (2% of CIR) 2.5 Mbytes/day

  8. FR FR CIR=16kbps CIR=16kbps Seoul Tokyo 192kbps 64kbps 122 Mbytes/day 7. Traffic status of the Tokyo-Seoul link Tokyo to Seoul (9 May 2005) 40kbps line (250% of CIR) 16kbps line (100% of CIR) Seoul to Tokyo (9 May 2005) 0.5kbps line (3% of CIR) 1.2 Mbytes/day

  9. FR FR CIR=16kbps CIR=16kbps Hong Kong Tokyo 192kbps 64kbps 209 Mbytes/day 8. Traffic status of the Tokyo-Hong Kong link Tokyo to Hong Kong (9 May 2005) 60kbps line (94% of access circuit at Hong Kong) 16kbps line (100% of CIR) Hong Kong to Tokyo (9 May 2005) 0.2kbps line (1.3% of CIR) 0.4 Mbytes/day

  10. Message Switching System GTS links FAX ExchangeSystem Message & Fax traffic FTP traffic FTP Servers • Current Message Switching System (MSS) and FAX Exchange system started operation in March 1996. They, especially MSS, are now nearing the limits in handling data volume and processing load. • FTP servers have still enough capacity to expand the satellite data exchange. • Japan Meteorological Agency (JMA) is to replace them by new ones in October 2005 in consideration of expansion and improvement of information exchange. GTS facilities in RTH Tokyo

  11. UNIX Operating system CPU 1.9GHz X 4 Memory 8GB UNIX Operating system CPU 1.9GHz X 4 Memory 8GB GTS Internet 9-2. Concept design of the new MSS at RTH Tokyo Message Switching System Back-end system Message editing Fax format conversion BUFR encode & decode Shared disk WMO monitoring cluster control NWP system Intranet systems MSS Functions + Message and FAX exchanges by both socket and so-called batched ftp through GTS + File exchange by ftp through GTS + Collection of observational data by e-mail via the Internet

  12. Internet ISP #1 ISP #2 20Mbps 8Mbps Multi-homed connections for reliability Packet Shapers Router Controllers Firewalls DMZ Load Balancer JMA Intra-net FTP Servers Public Servers 10. JMA Internet Connection

  13. Thank You For Your Attention 감사합니다

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