Status of the Global Telecommunication System connected with RTH Tokyo Japan Meteorological Agency...
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Transcript of Status of the Global Telecommunication System connected with RTH Tokyo Japan Meteorological Agency...
Status of the Global Telecommunication System connected
with RTH Tokyo
Japan Meteorological AgencyPresented 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 -MTN-
Exeter
Sofia
Network II
Melbourne
Buenos Aires
TokyoBeijing
Nairobi
Washington
2007
Jeddah
Prague
Toulouse
Dakar Algiers
Offenbach
Brasilia
CairoManaged
data communication network
New DelhiMoscow
Network I
• Tokyo has connectivity with four centers on the MTN• Tokyo is one of the gateways interconnecting Networks I and II
As one of the RTHs on the MTN….
2. Current status of the GTS -Region II (Asia)-
Vientiane
Baghdad
Doha
Kuwait
Bahrain
Dhaka
Yangon
Kathmandu
Kabul
Karachi
Colombo
Male
Hanoi
Phnom Penh
PyongYangAshgabad
Macao
64K
Dushanbe
Almaty
NI
NI
NI
Seoul
NI
NI
64K
9.6-26.4K (V.34)
14.4-28.8K (V.34)
64K64K
50
50
50
50
200
64K
64K
100
75
1200
50
100
9.6K
Offenbach
Offenbach
CairoAlgiers
Moscow
Kuala Lumpur
Tashkent
Novosibirsk
Khabarovsk
Bangkok
F/R CIR<16/16K>
F/R CIR<16/16K>
Washington
NI
NI
19.2-24K(V.34)
24-19.2K (V.34)
19.2-24K (V.34)
Regional Meteorological Telecommunication Network for Region II (Asia)Current status as of 25 September 2007
Bishkek
64K
Singapore
RTH in Region II
NMC in Region II
Centre in other region
MTN circuitRegional circuitInterregional circuitAdditional circuit
Non-IP linkIP linkInternet E-mail transmission
NI No implementation
Tehran
Sanaa200
Hong Kong
Moscow
NI
F/R CIR<32/32K>
Tokyo
IMTN-MDCN CIR<32/768K>
Manila
Internet
Jeddah
Muscat
64K
64K
64K
Washington
ISDN 128K
28.8-9.6K (V.34)via Moscow 64 k
64K
64K
Thimpu
New Delhi
NI
768K
64K
2.4K
75
64K
via Moscow
64K
100
Ulaanbaatar14.4K
Abu-Dhabi
1200
64K
9.6-26.4K (V.34)
9.6-26.4K (V.34)
Melbourne
Melbourne
IMTN-MDCNCIR<16/32K>
32K
CMAPCVSAT
64K
75
CMAPCVSAT
CMAPCVSAT
512K
MPLS
IMTN MDCNMPLS
IMTN MDCNMPLS
IMTN MDCNMPLS
IMTN MDCNMPLS
IMTN MDCNMPLS
MPLS
Internet
Internet Beijing
2M
2M128K
1M
2M
1M
128K
512K
2M
2M128K
512K
2M
MPLS
2M
128K
MPLS
2M
Internet
Internet
Internet
Internet
Internet
F/R CIR<16/16K>
F/R CIR<16/16K>
F/R CIR<16/16K>
F/R CIR<16/16K>
Internet
Internet
Internet
Internet
Internet
EUMETSAT
MPLS 2M2M
Toulouse
Internet
3. GTS links connected with RTH Tokyo
Tokyo
Manila
Bangkok
New Delhi
Beijing
Hong Kong
Khabarovsk
Seoul
Melbourne
Washington
Washington
Melbourne
192kbps
64kbps
64kbps
Frame Relay (FR) Network-to-
network Interconnections
128kbps
Seoul
Khabarovsk
64 kbps
Dedicated line connections
BT FR Network
(Cloud I)
1.5Mbps
256kbps
1.5Mbps
Improved MTN (Two Seamless Networks)
1Mbps
2 Mbps
Hong Kong Bangko
k
OBS MPLS Network
(Cloud II)
MTN
• All links are being operated on TCP/IP basis.
• Six of nine are IP over Frame Relay.
• Two of nine are MPLS.
New Delhi
Beijing
Regional Telecommunication Hub (RTH) Tokyo
ManilaKDDI
FR Network
CATCATFR FR
NetworkNetwork
HKTHKTFR FR
NetworkNetwork
DACOMDACOMFR FR
NetworkNetwork
64kbpsPLDTPLDT
FR FR NetworkNetwork
128kbps
Regional circuits
4. Traffic status of the Tokyo-Washington link
Tokyo to Washington (CIR=32Kbps) (19 September 2007)
0
0.5
1
1.5
2
2.5
3
3.5
4
0 3 6 9 12 15 18 21 [UTC]
[MByte/20min]
FAXBINA/N
26 Mbytes/day
50% of CIR
CIR=32kbpsCIR=768kbps
Tokyo FR Washington1.5Mbps
1.5Mbps
Washington to Tokyo (CIR=768Kbps) (19 September 2007)
0
10
20
30
40
50
60
0 3 6 9 12 15 18 21 [UTC]
[MByte/ 20min]
SSMIAMSUFAXBINA/N
847 Mbytes/day
50% of CIR
Melbourne to Tokyo (CIR=32Kbps) (19 September 2007)
0
1
2
3
4
5
6
0 3 6 9 12 15 18 21 [UTC]
[MByte/20min]
ATOVSFAXBINA/N
5. Traffic status of the Tokyo-Melbourne linkCIR=16kbps
CIR=32kbps
Tokyo FR Melbourne256kbps1.5Mbps
Tokyo to Melbourne (CIR=16Kbps) (19 September 2007)
0
1
2
3
4
5
6
0 3 6 9 12 15 18 21 [UTC]
[MByte/20min]
ATOVSFAXBINA/N
179 Mbytes/day
100% of CIR
Melbourne to Tokyo (CIR=32Kbps) (19 September 2007)
0
1
2
3
4
5
6
0 3 6 9 12 15 18 21 [UTC]
[MByte/20min]
ATOVSFAXBINA/N
100% of CIR
89 Mbytes/day
6. Traffic status of the Tokyo-Beijing link
Tokyo to Beijing (MPLS=1Mbps) (19 September 2007)
0
5
10
15
20
25
0 3 6 9 12 15 18 21 [UTC]
[MByte/20min]
ATOVSAMSUFAXBINA/N
Tokyo MPLS
Beijing2 Mbps1 Mbps
Beijing to Tokyo (MPLS=2Mbps) (19 September 2007)
0
1
2
3
4
5
6
7
0 3 6 9 12 15 18 21 [UTC]
[MByte/20min]
ATOVSFengYungFAXBINA/N
333 Mbytes/day
147 Mbytes/day
7. Traffic status of the Tokyo-Seoul link
Tokyo to Seoul (CIR=16Kbps) (19 September 2007)
0
1
2
3
4
5
6
7
0 3 6 9 12 15 18 21 [UTC]
[MByte/20min]ATOVSFAXBINA/N
CIR=16kbpsCIR=16kbps
Tokyo FR Seoul
64kbps192kbps
FR
Seoul to Tokyo (CIR=16Kbps) (19 September 2007)
0
0.01
0.02
0.03
0.04
0.05
0.06
0.07
0.08
0.09
0 3 6 9 12 15 18 21 [UTC]
[MByte/20min]
BINA/N
100% of CIR
157 Mbytes/day
Seoul to Tokyo (CIR=16Kbps) (19 September 2007)
0
0.01
0.02
0.03
0.04
0.05
0.06
0.07
0.08
0.09
0 3 6 9 12 15 18 21 [UTC]
[MByte/20min]
BINA/N
1.5 Mbytes/day
8. Traffic status of the Tokyo-Hong Kong link
Hong Kong to Tokyo (CIR=16Kbps) (19 September 2007)
0
0.005
0.01
0.015
0.02
0.025
0 3 6 9 12 15 18 21 [UTC]
[MByte/20min]
BIN
A/N
Tokyo FR Hong Kong
64kbps192kbps
FR
CIR=16kbpsCIR=16kbps
0.48 Mbytes/day
Tokyo to Hong Kong (CIR=16Kbps) (19 September 2007)
0
2
4
6
8
10
12
0 3 6 9 12 15 18 21 [UTC]
[MByte/20min]
SSMIBINA/N
212 Mbytes/day
64kbps line
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
Message/File Switching System
Intranet systems
NWP system
Back-end system
UNIX Operating system
CPU 1.9GHz X 4
Memory 8GB
UNIX Operating system
CPU 1.9GHz X 4
Memory 8GB
Message editing
Fax format conversion
BUFRencode & decode
WMO monitoringShared disk
GTS GTS linkslinks
cluster control
InternInternetet
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.
10. 10. JMA Internet ConnectionJMA Internet Connection
DMZLoad Balancer
Public Servers
JMAIntra-net
ISP #1
Router Controllers
Firewalls
Packet Shapers
20Mbps
Internet
ISP #2
20MbpsMulti-homedconnectionsfor reliability
FTP Servers
• 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
2007
2006
Thank you Thank you ffor attentionor attention