Status of the Global Telecommunication System connected with RTH Tokyo Japan Meteorological Agency Presented by Masahiro Kazumori Eighth Meeting on Asia-Pacific Satellite Data Exchange and Utilization (APSDEU-8) (Montréal, Canada, 10 to 12 October 2007)
1. Current status of the GTS -MTNAs one of the RTHs on the MTN…. • Tokyo has connectivity with four centers on the MTN • Tokyo is one of the gateways interconnecting Networks I and II Network I Tokyo Melbourne Washington Buenos Aires Brasilia Beijing Sofia Moscow New Delhi Prague Exeter Jeddah Offenbach Network II Nairobi Managed Toulouse data communication network Dakar Algiers Cairo 2007
2. Current status of the GTS -Region II (Asia)RTH in Region II NMC in Region II Baghdad 9. 6 -26. 4 K (V. 34) NI NI Tashkent via Moscow 19. 2 -24 K(V. 34) Ulaanbaatar EUMETSAT 2 M NI Jeddah 64 K 50 Internet Washington 200 MPLS 1200 Internet NI Karachi 2 M Doha Abu-Dhabi 128 K 64 K Thimpu 128 K Internet NI 100 64 K Seoul Internet Melbourne 64 K Macao F/R CIR <16/16 K> ISDN 128 K 1 M Hanoi 100 IMTN MDCN MPLS Moscow 128 K Internet 64 K Internet Yangon 200 64 K 50 Male 75 Singapore Regional Meteorological Telecommunication Network for Region II (Asia) Current status as of 25 September 2007 F/R CIR <16/16 K> Bangkok F/R CIR <16/16 K> 9. 6 K Vientiane 50 32 K Hong Kong CMA PCVSAT Dhaka Colombo Sanaa Beijing Kathmandu 64 K 1 M IMTN MDCN MPLS 2 M F/R CIR <16/16 K> <32/32 K> 75 2 M MPLS 50 Internet Tokyo 2 M NI 768 K Pyong. Yang 64 K IMTN MDCN 2 M MPLS Offenbach New Delhi Cairo Muscat Internet Kabul 75 Internet 64 K Algiers 100 2 M MPLS 2 M IMTN MDCN MPLS NI Internet Bahrain 512 K 128 K 50 Kuwait 64 K Internet Dushanbe Offenbach IMTN MDCN MPLS 512 K NI Tehran 64 k 2 M 14. 4 K CMA PCVSAT 2. 4 K Internet via Moscow 2 M MPLS 9. 6 -26. 4 K (V. 34) IMTN-MDCN CIR<32/768 K> 14. 4 -28. 8 K (V. 34) 28. 8 -9. 6 K (V. 34) 64 K Bishkek Ashgabad 512 K MPLS 9. 6 -26. 4 K (V. 34) NI Internet Novosibirsk Almaty 19. 2 -24 K (V. 34) Washington 64 K 24 -19. 2 K (V. 34) Toulouse Non-IP link Internet E-mail transmission Khabarovsk 64 K MTN circuit Regional circuit Interregional circuit Additional circuit No implementation NI 64 K Moscow Centre in other region F/R CIR <16/16 K> 1200 IMTN-MDCN CIR<16/32 K> Manila Internet F/R CIR <16/16 K> Phnom Penh Kuala Lumpur Melbourne
3. GTS links connected with RTH Tokyo 64 kbps Hong Kong 64 kbps Seoul HKT FR Network CAT FR Network MTN Regional circuits 128 kbps Bangkok KDDI DACOM PLDT FR Network 64 kbps Washington Manila Frame Relay (FR) Network-to-network Interconnections 192 kbps Khabarovsk Beijing 64 kbps Khabarovsk Dedicated line connections OBS MPLS Network (Cloud II) 1. 5 Mbps BT FR Network (Cloud I) Tokyo New Delhi Hong Kong Regional Telecommunication Hub (RTH) Tokyo 1 Mbps Seoul Bangkok Manila Melbourne 1. 5 128 256 2 Mbps • All links are being operated kbps New Delhi Beijing Melbourne Washington on TCP/IP basis. Improved MTN (Two Seamless Networks) • Six of nine are IP over Frame Relay. • Two of nine are MPLS.
4. Traffic status of the Tokyo-Washington link 26 Mbytes/day CIR=32 kbps CIR=768 kbps Tokyo FR 1. 5 Mbps Washington 1. 5 Mbps 50% of CIR 847 Mbytes/day 50% of CIR
5. Traffic status of the Tokyo-Melbourne link CIR=16 kbps CIR=32 kbps Tokyo 179 Mbytes/day FR 1. 5 Mbps Melbourne 256 kbps 100% of CIR 89 Mbytes/day 100% of CIR
6. Traffic status of the Tokyo-Beijing link 333 Mbytes/day 147 Mbytes/day Tokyo 1 Mbps MPLS Beijing 2 Mbps
7. Traffic status of the Tokyo-Seoul link CIR=16 kbps Tokyo 157 Mbytes/day 192 kbps CIR=16 kbps FR FR Seoul 64 kbps 100% of CIR 1. 5 Mbytes/day
CIR=16 kbps 8. Traffic status of the Tokyo-Hong Kong link 212 Mbytes/day Tokyo 192 kbps CIR=16 kbps FR FR Hong Kong 64 kbps line 0. 48 Mbytes/day
9. GTS facilities in RTH Tokyo -Conceptual design- • 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/File Switching System UNIX Operating system CPU 1. 9 GHz X 4 Message editing Fax format conversion Memory 8 GB cluster control Back-end system BUFR encode & decode Shared disk WMO monitoring UNIX Operating system CPU 1. 9 GHz X 4 GTS links Memory 8 GB 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 NWP system Intranet systems Internet
10. 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 Internet ISP #1 20 Mbps JMA Intranet ISP #2 Multi-homed connections for reliability 20 Mbps Packet Shapers Router Controllers Firewalls Load Balancer DMZ FTP Servers Public Servers 2006 2007
Thank you for attention
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