Transcript Improved MTN, managed data networks services
Slide 1
IMTN and managed data network services
Hiroyuki ICHIJO (Japan Meteorological Agency
Technical Conference on the WIS (Seoul, 6-8 November 2006)
MTN configuration
The Main Telecommunication Network (MTN) interconnects 6 Regional
Meteorological Telecommunication Networks (RMTNs) as a core of the GTS.
The MTN consists of 18 MTN Centres and 25 connections.
Region VI
Region I
Region II
Region V
Region IV
Region III
Strategies to improve the GTS
• Expanding bandwidth
• Flexible connectivity
• Saving recurrent cost
Use of
cost-effective
network services
Leased circuits
• Internet like applications
• Saving implementation costs
and human resources
• allowing latitude in selecting
a network service
Improved GTS
Migration to
TCP/IP
Legacy protocols
Strengthen the overall GTS capabilities
with cost-effectiveness and technical trends
Strategies
Traditional GTS
Layer separation approach to the improved GTS
File transfer
Adding applications
Server/client
Migration to TCP/IP
Application layer
Message
Switching
TCP/IP
Legacy protocol
File transfer
Server/client
Transmission
protocol layer
Frame Relay
Use of network services
IP-VPN
Transport layer
Message
Switching
TCP/IP
Legacy protocol
Concepts of IMTN
The CBS, at its 1998 extra-ordinary session, stressed that the MTN
shall be reviewed fundamentally to meet evolving data exchange
requirements of WMO Programmes other than the WWW. The IMTN
project has been promoting the reform of the MTN capability as a
genuine network since its commencement in 1999.
Reform concepts are:
(1) to provide capability and flexibility to meet new and future
requirements by using technical innovation;
(2) to seek cost-effectiveness with appropriate reliability and security;
(3) to challenge establishment of a collaborative contractual
framework;
(4) to keep up with an appropriate pace for implementation, i.e.
“early implementation leads early benefits.”
A point of implementation strategy is the evolution
from bilateral physical circuits
to logical connections through seamless network “cloud”.
Status of the IMTN project
The current IMTN is structured with two “clouds” of Frame Relay
network services.
• 17 of 25 MTN circuits are in operation on the Clouds.
• 12 of 18 MTN centers participate in the Clouds.
Cloud I
Tokyo
Melbourne
Washington
Buenos Aires
Brasilia
Beijing
Sofia
Moscow
Prague
Exeter
Jeddah
Offenbach
Cloud II
Nairobi
Toulouse
Dakar
New Delhi
Algiers
Cairo
Details of Cloud I
• Logical connections (PVC: Permanent Virtual Circuit) through BT
Frame Relay network
• Configuration of asymmetric bandwidths by CIR (Committed
Information Rate) for unbalanced traffic conditions
• Arrangement of backup re-routing with a dynamic routing protocol
(BGP-4)
Washington
1.5Mbps
Access circuit
1.5Mbps
32k
768k
32k
Tokyo
16k
4k
256kbps
Disaster Recovery Site
32k
32k
BT Frame Relay 16k
32k
16k
Brisbane
4k 16k
32k
16k
64k
64k
256kbps
Melbourne
Exeter
256kbps
Primary PVC
BoM Backup PVC
CIR in each direction
[bps]
Unbalanced traffic and asymmetric CIRs (Cloud I)
25 Mbytes/day
55% of CIR
CIR=32kbps
CIR=768kbps
Tokyo
1.5Mbps
FR
Washington
1.5Mbps
40% of CIR
Each pays for
its local access circuit
and an incoming CIR
1076 Mbytes/day
Backup Re-routing (Cloud I)
Washington
Cloud I
Tokyo
Link failure
BGP-4
Melbourne
Traffic on
normal condition
BGP-4
Bypass traffic
for backup
Details of Cloud II
• PVCs through OBS (Orange Business Service, former EQUANT)
Frame Relay network under expansion of the European contract
• Centralized network monitoring by ECMWF & Consumer Premise
Equipment (CPE, Cisco Router) managed by OBS
• Configuration of asymmetric bandwidths by CIR
Moscow
Beijing
Tokyo
New Delhi
CPE
CPE
128
kbps
64kbps
256kbps
256kbps
16k
16k
16k 8k
48k 96k
8k
32k
Cloud II
By OBS
CPE
CPE
CPE
256kbps
64k
48k
Sofia
32k
16k 8k
CPE
512kbps
8k
Prague
8k
128k
384k
512kbps
CPE
Exeter
64k
64kbps
1024
kbps
CPE
CPE
Jeddah
Offenbach
2048
kbps
CPE
Toulouse
Collaborative contract (Cloud II)
Customer
representative
(ECMWF)
Network service
provider
(OBS)
Master
Contract
Accession
Agreement
Network
monitoring
Helpdesk
Regional network in Europe
(RMDCN in Region VI)
Accession
Agreement
Accession
Agreement
IMTN Cloud II
Accession
Agreement
Accession
Agreement
Accession
Agreement
Benefits of IMTN
The implementation of the IMTN brings various benefits:
(1) further reliability
stable operation for real-time data exchange
(2) better performance in throughput
exchange of large volume of data such as satellite data/products
(3) manageable link parameters
efficient configuration to meet traffic conditions
(4) flexibility and scalability
easy compliance with evolving requirements
(5) cost-effectiveness
saving recurrent costs
Market trends of global managed data network services
• Migration from leased circuit, ATM and Frame Relay services to
MPLS/IP-VPN (Multi Protocol Label Switching/IP-Virtual Private Network)
is remarkable.
• Layer 2 switching VPN is one of next-generation WAN services but
premature in market.
[billion US$]
140
Retail scale of global WAN services
120
Estimation
Leased circuit
ATM/Cell Relay
Frame Relay
MPLS/IP-VPN
Layer 2 VPN
100
80
60
40
20
0
2003
2004
2005
2006
2007
2008
[year]
Market share of Tier-1 global network operators
Market leaders : Equant (OBS at present), AT&T and BT/BT Infonet
Their strategies:
• Extending service coverage by establishing new MPLS PoPs
(Points of Presence)
• Bilateral partnerships with national and regional telecom carriers
for MPLS interoperability outside of their footprints
Fast-growth markets : Asia and Eastern Europe
Equant
(present: OBS)
12%
SI/IT outsourcers
37%
AT&T
12%
BT/BT Infonet
11%
Other
network
operators
15%
Global WAN service share (2nd quarter of 2005)
MCI
7%
Sprint
1%
Cable & Wireless
2%
T-Systems
2%
NTT Communications
1%
MPLS/IP-VPN
MPLS/IP-VPN is one of most promising WAN services.
IP
IP Label
VPN
group
IP Label
IP
Core Router
CE
PE
Closed
IP network
by a provider
VPN group
CE
PE
Core Router
PE
CE
CE
Core Router
Provider’s PEs and Core Routers based on MPLS have Label Tables and switch IP packets forward
according to the Tables.
CE : Customer Edge Router
PE : Provider Edge Router
VPN : Virtual Private Network
MPLS : Multi Protocol Label Switching
Future of IMTN
MPLS/IP-VPN
GTS
IMTN
WIS
core network
Frame Relay
End of
2007
Cloud I
Early
2007
MPLS/IP-VPN
Frame Relay
Cloud II
Study of possibility of
consolidation of two Clouds
Coordination
For further improvement, migration from Frame Relay to MPLS/IP-VPN is
planned. MPLS/IP-VPN service provides:
• flexibility of mesh connectivity among GISCs
• additional bandwidth.
The IMTN would function as a WIS core network
linking a small number of GISCs together.
Slide 2
IMTN and managed data network services
Hiroyuki ICHIJO (Japan Meteorological Agency
Technical Conference on the WIS (Seoul, 6-8 November 2006)
MTN configuration
The Main Telecommunication Network (MTN) interconnects 6 Regional
Meteorological Telecommunication Networks (RMTNs) as a core of the GTS.
The MTN consists of 18 MTN Centres and 25 connections.
Region VI
Region I
Region II
Region V
Region IV
Region III
Strategies to improve the GTS
• Expanding bandwidth
• Flexible connectivity
• Saving recurrent cost
Use of
cost-effective
network services
Leased circuits
• Internet like applications
• Saving implementation costs
and human resources
• allowing latitude in selecting
a network service
Improved GTS
Migration to
TCP/IP
Legacy protocols
Strengthen the overall GTS capabilities
with cost-effectiveness and technical trends
Strategies
Traditional GTS
Layer separation approach to the improved GTS
File transfer
Adding applications
Server/client
Migration to TCP/IP
Application layer
Message
Switching
TCP/IP
Legacy protocol
File transfer
Server/client
Transmission
protocol layer
Frame Relay
Use of network services
IP-VPN
Transport layer
Message
Switching
TCP/IP
Legacy protocol
Concepts of IMTN
The CBS, at its 1998 extra-ordinary session, stressed that the MTN
shall be reviewed fundamentally to meet evolving data exchange
requirements of WMO Programmes other than the WWW. The IMTN
project has been promoting the reform of the MTN capability as a
genuine network since its commencement in 1999.
Reform concepts are:
(1) to provide capability and flexibility to meet new and future
requirements by using technical innovation;
(2) to seek cost-effectiveness with appropriate reliability and security;
(3) to challenge establishment of a collaborative contractual
framework;
(4) to keep up with an appropriate pace for implementation, i.e.
“early implementation leads early benefits.”
A point of implementation strategy is the evolution
from bilateral physical circuits
to logical connections through seamless network “cloud”.
Status of the IMTN project
The current IMTN is structured with two “clouds” of Frame Relay
network services.
• 17 of 25 MTN circuits are in operation on the Clouds.
• 12 of 18 MTN centers participate in the Clouds.
Cloud I
Tokyo
Melbourne
Washington
Buenos Aires
Brasilia
Beijing
Sofia
Moscow
Prague
Exeter
Jeddah
Offenbach
Cloud II
Nairobi
Toulouse
Dakar
New Delhi
Algiers
Cairo
Details of Cloud I
• Logical connections (PVC: Permanent Virtual Circuit) through BT
Frame Relay network
• Configuration of asymmetric bandwidths by CIR (Committed
Information Rate) for unbalanced traffic conditions
• Arrangement of backup re-routing with a dynamic routing protocol
(BGP-4)
Washington
1.5Mbps
Access circuit
1.5Mbps
32k
768k
32k
Tokyo
16k
4k
256kbps
Disaster Recovery Site
32k
32k
BT Frame Relay 16k
32k
16k
Brisbane
4k 16k
32k
16k
64k
64k
256kbps
Melbourne
Exeter
256kbps
Primary PVC
BoM Backup PVC
CIR in each direction
[bps]
Unbalanced traffic and asymmetric CIRs (Cloud I)
25 Mbytes/day
55% of CIR
CIR=32kbps
CIR=768kbps
Tokyo
1.5Mbps
FR
Washington
1.5Mbps
40% of CIR
Each pays for
its local access circuit
and an incoming CIR
1076 Mbytes/day
Backup Re-routing (Cloud I)
Washington
Cloud I
Tokyo
Link failure
BGP-4
Melbourne
Traffic on
normal condition
BGP-4
Bypass traffic
for backup
Details of Cloud II
• PVCs through OBS (Orange Business Service, former EQUANT)
Frame Relay network under expansion of the European contract
• Centralized network monitoring by ECMWF & Consumer Premise
Equipment (CPE, Cisco Router) managed by OBS
• Configuration of asymmetric bandwidths by CIR
Moscow
Beijing
Tokyo
New Delhi
CPE
CPE
128
kbps
64kbps
256kbps
256kbps
16k
16k
16k 8k
48k 96k
8k
32k
Cloud II
By OBS
CPE
CPE
CPE
256kbps
64k
48k
Sofia
32k
16k 8k
CPE
512kbps
8k
Prague
8k
128k
384k
512kbps
CPE
Exeter
64k
64kbps
1024
kbps
CPE
CPE
Jeddah
Offenbach
2048
kbps
CPE
Toulouse
Collaborative contract (Cloud II)
Customer
representative
(ECMWF)
Network service
provider
(OBS)
Master
Contract
Accession
Agreement
Network
monitoring
Helpdesk
Regional network in Europe
(RMDCN in Region VI)
Accession
Agreement
Accession
Agreement
IMTN Cloud II
Accession
Agreement
Accession
Agreement
Accession
Agreement
Benefits of IMTN
The implementation of the IMTN brings various benefits:
(1) further reliability
stable operation for real-time data exchange
(2) better performance in throughput
exchange of large volume of data such as satellite data/products
(3) manageable link parameters
efficient configuration to meet traffic conditions
(4) flexibility and scalability
easy compliance with evolving requirements
(5) cost-effectiveness
saving recurrent costs
Market trends of global managed data network services
• Migration from leased circuit, ATM and Frame Relay services to
MPLS/IP-VPN (Multi Protocol Label Switching/IP-Virtual Private Network)
is remarkable.
• Layer 2 switching VPN is one of next-generation WAN services but
premature in market.
[billion US$]
140
Retail scale of global WAN services
120
Estimation
Leased circuit
ATM/Cell Relay
Frame Relay
MPLS/IP-VPN
Layer 2 VPN
100
80
60
40
20
0
2003
2004
2005
2006
2007
2008
[year]
Market share of Tier-1 global network operators
Market leaders : Equant (OBS at present), AT&T and BT/BT Infonet
Their strategies:
• Extending service coverage by establishing new MPLS PoPs
(Points of Presence)
• Bilateral partnerships with national and regional telecom carriers
for MPLS interoperability outside of their footprints
Fast-growth markets : Asia and Eastern Europe
Equant
(present: OBS)
12%
SI/IT outsourcers
37%
AT&T
12%
BT/BT Infonet
11%
Other
network
operators
15%
Global WAN service share (2nd quarter of 2005)
MCI
7%
Sprint
1%
Cable & Wireless
2%
T-Systems
2%
NTT Communications
1%
MPLS/IP-VPN
MPLS/IP-VPN is one of most promising WAN services.
IP
IP Label
VPN
group
IP Label
IP
Core Router
CE
PE
Closed
IP network
by a provider
VPN group
CE
PE
Core Router
PE
CE
CE
Core Router
Provider’s PEs and Core Routers based on MPLS have Label Tables and switch IP packets forward
according to the Tables.
CE : Customer Edge Router
PE : Provider Edge Router
VPN : Virtual Private Network
MPLS : Multi Protocol Label Switching
Future of IMTN
MPLS/IP-VPN
GTS
IMTN
WIS
core network
Frame Relay
End of
2007
Cloud I
Early
2007
MPLS/IP-VPN
Frame Relay
Cloud II
Study of possibility of
consolidation of two Clouds
Coordination
For further improvement, migration from Frame Relay to MPLS/IP-VPN is
planned. MPLS/IP-VPN service provides:
• flexibility of mesh connectivity among GISCs
• additional bandwidth.
The IMTN would function as a WIS core network
linking a small number of GISCs together.
Slide 3
IMTN and managed data network services
Hiroyuki ICHIJO (Japan Meteorological Agency
Technical Conference on the WIS (Seoul, 6-8 November 2006)
MTN configuration
The Main Telecommunication Network (MTN) interconnects 6 Regional
Meteorological Telecommunication Networks (RMTNs) as a core of the GTS.
The MTN consists of 18 MTN Centres and 25 connections.
Region VI
Region I
Region II
Region V
Region IV
Region III
Strategies to improve the GTS
• Expanding bandwidth
• Flexible connectivity
• Saving recurrent cost
Use of
cost-effective
network services
Leased circuits
• Internet like applications
• Saving implementation costs
and human resources
• allowing latitude in selecting
a network service
Improved GTS
Migration to
TCP/IP
Legacy protocols
Strengthen the overall GTS capabilities
with cost-effectiveness and technical trends
Strategies
Traditional GTS
Layer separation approach to the improved GTS
File transfer
Adding applications
Server/client
Migration to TCP/IP
Application layer
Message
Switching
TCP/IP
Legacy protocol
File transfer
Server/client
Transmission
protocol layer
Frame Relay
Use of network services
IP-VPN
Transport layer
Message
Switching
TCP/IP
Legacy protocol
Concepts of IMTN
The CBS, at its 1998 extra-ordinary session, stressed that the MTN
shall be reviewed fundamentally to meet evolving data exchange
requirements of WMO Programmes other than the WWW. The IMTN
project has been promoting the reform of the MTN capability as a
genuine network since its commencement in 1999.
Reform concepts are:
(1) to provide capability and flexibility to meet new and future
requirements by using technical innovation;
(2) to seek cost-effectiveness with appropriate reliability and security;
(3) to challenge establishment of a collaborative contractual
framework;
(4) to keep up with an appropriate pace for implementation, i.e.
“early implementation leads early benefits.”
A point of implementation strategy is the evolution
from bilateral physical circuits
to logical connections through seamless network “cloud”.
Status of the IMTN project
The current IMTN is structured with two “clouds” of Frame Relay
network services.
• 17 of 25 MTN circuits are in operation on the Clouds.
• 12 of 18 MTN centers participate in the Clouds.
Cloud I
Tokyo
Melbourne
Washington
Buenos Aires
Brasilia
Beijing
Sofia
Moscow
Prague
Exeter
Jeddah
Offenbach
Cloud II
Nairobi
Toulouse
Dakar
New Delhi
Algiers
Cairo
Details of Cloud I
• Logical connections (PVC: Permanent Virtual Circuit) through BT
Frame Relay network
• Configuration of asymmetric bandwidths by CIR (Committed
Information Rate) for unbalanced traffic conditions
• Arrangement of backup re-routing with a dynamic routing protocol
(BGP-4)
Washington
1.5Mbps
Access circuit
1.5Mbps
32k
768k
32k
Tokyo
16k
4k
256kbps
Disaster Recovery Site
32k
32k
BT Frame Relay 16k
32k
16k
Brisbane
4k 16k
32k
16k
64k
64k
256kbps
Melbourne
Exeter
256kbps
Primary PVC
BoM Backup PVC
CIR in each direction
[bps]
Unbalanced traffic and asymmetric CIRs (Cloud I)
25 Mbytes/day
55% of CIR
CIR=32kbps
CIR=768kbps
Tokyo
1.5Mbps
FR
Washington
1.5Mbps
40% of CIR
Each pays for
its local access circuit
and an incoming CIR
1076 Mbytes/day
Backup Re-routing (Cloud I)
Washington
Cloud I
Tokyo
Link failure
BGP-4
Melbourne
Traffic on
normal condition
BGP-4
Bypass traffic
for backup
Details of Cloud II
• PVCs through OBS (Orange Business Service, former EQUANT)
Frame Relay network under expansion of the European contract
• Centralized network monitoring by ECMWF & Consumer Premise
Equipment (CPE, Cisco Router) managed by OBS
• Configuration of asymmetric bandwidths by CIR
Moscow
Beijing
Tokyo
New Delhi
CPE
CPE
128
kbps
64kbps
256kbps
256kbps
16k
16k
16k 8k
48k 96k
8k
32k
Cloud II
By OBS
CPE
CPE
CPE
256kbps
64k
48k
Sofia
32k
16k 8k
CPE
512kbps
8k
Prague
8k
128k
384k
512kbps
CPE
Exeter
64k
64kbps
1024
kbps
CPE
CPE
Jeddah
Offenbach
2048
kbps
CPE
Toulouse
Collaborative contract (Cloud II)
Customer
representative
(ECMWF)
Network service
provider
(OBS)
Master
Contract
Accession
Agreement
Network
monitoring
Helpdesk
Regional network in Europe
(RMDCN in Region VI)
Accession
Agreement
Accession
Agreement
IMTN Cloud II
Accession
Agreement
Accession
Agreement
Accession
Agreement
Benefits of IMTN
The implementation of the IMTN brings various benefits:
(1) further reliability
stable operation for real-time data exchange
(2) better performance in throughput
exchange of large volume of data such as satellite data/products
(3) manageable link parameters
efficient configuration to meet traffic conditions
(4) flexibility and scalability
easy compliance with evolving requirements
(5) cost-effectiveness
saving recurrent costs
Market trends of global managed data network services
• Migration from leased circuit, ATM and Frame Relay services to
MPLS/IP-VPN (Multi Protocol Label Switching/IP-Virtual Private Network)
is remarkable.
• Layer 2 switching VPN is one of next-generation WAN services but
premature in market.
[billion US$]
140
Retail scale of global WAN services
120
Estimation
Leased circuit
ATM/Cell Relay
Frame Relay
MPLS/IP-VPN
Layer 2 VPN
100
80
60
40
20
0
2003
2004
2005
2006
2007
2008
[year]
Market share of Tier-1 global network operators
Market leaders : Equant (OBS at present), AT&T and BT/BT Infonet
Their strategies:
• Extending service coverage by establishing new MPLS PoPs
(Points of Presence)
• Bilateral partnerships with national and regional telecom carriers
for MPLS interoperability outside of their footprints
Fast-growth markets : Asia and Eastern Europe
Equant
(present: OBS)
12%
SI/IT outsourcers
37%
AT&T
12%
BT/BT Infonet
11%
Other
network
operators
15%
Global WAN service share (2nd quarter of 2005)
MCI
7%
Sprint
1%
Cable & Wireless
2%
T-Systems
2%
NTT Communications
1%
MPLS/IP-VPN
MPLS/IP-VPN is one of most promising WAN services.
IP
IP Label
VPN
group
IP Label
IP
Core Router
CE
PE
Closed
IP network
by a provider
VPN group
CE
PE
Core Router
PE
CE
CE
Core Router
Provider’s PEs and Core Routers based on MPLS have Label Tables and switch IP packets forward
according to the Tables.
CE : Customer Edge Router
PE : Provider Edge Router
VPN : Virtual Private Network
MPLS : Multi Protocol Label Switching
Future of IMTN
MPLS/IP-VPN
GTS
IMTN
WIS
core network
Frame Relay
End of
2007
Cloud I
Early
2007
MPLS/IP-VPN
Frame Relay
Cloud II
Study of possibility of
consolidation of two Clouds
Coordination
For further improvement, migration from Frame Relay to MPLS/IP-VPN is
planned. MPLS/IP-VPN service provides:
• flexibility of mesh connectivity among GISCs
• additional bandwidth.
The IMTN would function as a WIS core network
linking a small number of GISCs together.
Slide 4
IMTN and managed data network services
Hiroyuki ICHIJO (Japan Meteorological Agency
Technical Conference on the WIS (Seoul, 6-8 November 2006)
MTN configuration
The Main Telecommunication Network (MTN) interconnects 6 Regional
Meteorological Telecommunication Networks (RMTNs) as a core of the GTS.
The MTN consists of 18 MTN Centres and 25 connections.
Region VI
Region I
Region II
Region V
Region IV
Region III
Strategies to improve the GTS
• Expanding bandwidth
• Flexible connectivity
• Saving recurrent cost
Use of
cost-effective
network services
Leased circuits
• Internet like applications
• Saving implementation costs
and human resources
• allowing latitude in selecting
a network service
Improved GTS
Migration to
TCP/IP
Legacy protocols
Strengthen the overall GTS capabilities
with cost-effectiveness and technical trends
Strategies
Traditional GTS
Layer separation approach to the improved GTS
File transfer
Adding applications
Server/client
Migration to TCP/IP
Application layer
Message
Switching
TCP/IP
Legacy protocol
File transfer
Server/client
Transmission
protocol layer
Frame Relay
Use of network services
IP-VPN
Transport layer
Message
Switching
TCP/IP
Legacy protocol
Concepts of IMTN
The CBS, at its 1998 extra-ordinary session, stressed that the MTN
shall be reviewed fundamentally to meet evolving data exchange
requirements of WMO Programmes other than the WWW. The IMTN
project has been promoting the reform of the MTN capability as a
genuine network since its commencement in 1999.
Reform concepts are:
(1) to provide capability and flexibility to meet new and future
requirements by using technical innovation;
(2) to seek cost-effectiveness with appropriate reliability and security;
(3) to challenge establishment of a collaborative contractual
framework;
(4) to keep up with an appropriate pace for implementation, i.e.
“early implementation leads early benefits.”
A point of implementation strategy is the evolution
from bilateral physical circuits
to logical connections through seamless network “cloud”.
Status of the IMTN project
The current IMTN is structured with two “clouds” of Frame Relay
network services.
• 17 of 25 MTN circuits are in operation on the Clouds.
• 12 of 18 MTN centers participate in the Clouds.
Cloud I
Tokyo
Melbourne
Washington
Buenos Aires
Brasilia
Beijing
Sofia
Moscow
Prague
Exeter
Jeddah
Offenbach
Cloud II
Nairobi
Toulouse
Dakar
New Delhi
Algiers
Cairo
Details of Cloud I
• Logical connections (PVC: Permanent Virtual Circuit) through BT
Frame Relay network
• Configuration of asymmetric bandwidths by CIR (Committed
Information Rate) for unbalanced traffic conditions
• Arrangement of backup re-routing with a dynamic routing protocol
(BGP-4)
Washington
1.5Mbps
Access circuit
1.5Mbps
32k
768k
32k
Tokyo
16k
4k
256kbps
Disaster Recovery Site
32k
32k
BT Frame Relay 16k
32k
16k
Brisbane
4k 16k
32k
16k
64k
64k
256kbps
Melbourne
Exeter
256kbps
Primary PVC
BoM Backup PVC
CIR in each direction
[bps]
Unbalanced traffic and asymmetric CIRs (Cloud I)
25 Mbytes/day
55% of CIR
CIR=32kbps
CIR=768kbps
Tokyo
1.5Mbps
FR
Washington
1.5Mbps
40% of CIR
Each pays for
its local access circuit
and an incoming CIR
1076 Mbytes/day
Backup Re-routing (Cloud I)
Washington
Cloud I
Tokyo
Link failure
BGP-4
Melbourne
Traffic on
normal condition
BGP-4
Bypass traffic
for backup
Details of Cloud II
• PVCs through OBS (Orange Business Service, former EQUANT)
Frame Relay network under expansion of the European contract
• Centralized network monitoring by ECMWF & Consumer Premise
Equipment (CPE, Cisco Router) managed by OBS
• Configuration of asymmetric bandwidths by CIR
Moscow
Beijing
Tokyo
New Delhi
CPE
CPE
128
kbps
64kbps
256kbps
256kbps
16k
16k
16k 8k
48k 96k
8k
32k
Cloud II
By OBS
CPE
CPE
CPE
256kbps
64k
48k
Sofia
32k
16k 8k
CPE
512kbps
8k
Prague
8k
128k
384k
512kbps
CPE
Exeter
64k
64kbps
1024
kbps
CPE
CPE
Jeddah
Offenbach
2048
kbps
CPE
Toulouse
Collaborative contract (Cloud II)
Customer
representative
(ECMWF)
Network service
provider
(OBS)
Master
Contract
Accession
Agreement
Network
monitoring
Helpdesk
Regional network in Europe
(RMDCN in Region VI)
Accession
Agreement
Accession
Agreement
IMTN Cloud II
Accession
Agreement
Accession
Agreement
Accession
Agreement
Benefits of IMTN
The implementation of the IMTN brings various benefits:
(1) further reliability
stable operation for real-time data exchange
(2) better performance in throughput
exchange of large volume of data such as satellite data/products
(3) manageable link parameters
efficient configuration to meet traffic conditions
(4) flexibility and scalability
easy compliance with evolving requirements
(5) cost-effectiveness
saving recurrent costs
Market trends of global managed data network services
• Migration from leased circuit, ATM and Frame Relay services to
MPLS/IP-VPN (Multi Protocol Label Switching/IP-Virtual Private Network)
is remarkable.
• Layer 2 switching VPN is one of next-generation WAN services but
premature in market.
[billion US$]
140
Retail scale of global WAN services
120
Estimation
Leased circuit
ATM/Cell Relay
Frame Relay
MPLS/IP-VPN
Layer 2 VPN
100
80
60
40
20
0
2003
2004
2005
2006
2007
2008
[year]
Market share of Tier-1 global network operators
Market leaders : Equant (OBS at present), AT&T and BT/BT Infonet
Their strategies:
• Extending service coverage by establishing new MPLS PoPs
(Points of Presence)
• Bilateral partnerships with national and regional telecom carriers
for MPLS interoperability outside of their footprints
Fast-growth markets : Asia and Eastern Europe
Equant
(present: OBS)
12%
SI/IT outsourcers
37%
AT&T
12%
BT/BT Infonet
11%
Other
network
operators
15%
Global WAN service share (2nd quarter of 2005)
MCI
7%
Sprint
1%
Cable & Wireless
2%
T-Systems
2%
NTT Communications
1%
MPLS/IP-VPN
MPLS/IP-VPN is one of most promising WAN services.
IP
IP Label
VPN
group
IP Label
IP
Core Router
CE
PE
Closed
IP network
by a provider
VPN group
CE
PE
Core Router
PE
CE
CE
Core Router
Provider’s PEs and Core Routers based on MPLS have Label Tables and switch IP packets forward
according to the Tables.
CE : Customer Edge Router
PE : Provider Edge Router
VPN : Virtual Private Network
MPLS : Multi Protocol Label Switching
Future of IMTN
MPLS/IP-VPN
GTS
IMTN
WIS
core network
Frame Relay
End of
2007
Cloud I
Early
2007
MPLS/IP-VPN
Frame Relay
Cloud II
Study of possibility of
consolidation of two Clouds
Coordination
For further improvement, migration from Frame Relay to MPLS/IP-VPN is
planned. MPLS/IP-VPN service provides:
• flexibility of mesh connectivity among GISCs
• additional bandwidth.
The IMTN would function as a WIS core network
linking a small number of GISCs together.
Slide 5
IMTN and managed data network services
Hiroyuki ICHIJO (Japan Meteorological Agency
Technical Conference on the WIS (Seoul, 6-8 November 2006)
MTN configuration
The Main Telecommunication Network (MTN) interconnects 6 Regional
Meteorological Telecommunication Networks (RMTNs) as a core of the GTS.
The MTN consists of 18 MTN Centres and 25 connections.
Region VI
Region I
Region II
Region V
Region IV
Region III
Strategies to improve the GTS
• Expanding bandwidth
• Flexible connectivity
• Saving recurrent cost
Use of
cost-effective
network services
Leased circuits
• Internet like applications
• Saving implementation costs
and human resources
• allowing latitude in selecting
a network service
Improved GTS
Migration to
TCP/IP
Legacy protocols
Strengthen the overall GTS capabilities
with cost-effectiveness and technical trends
Strategies
Traditional GTS
Layer separation approach to the improved GTS
File transfer
Adding applications
Server/client
Migration to TCP/IP
Application layer
Message
Switching
TCP/IP
Legacy protocol
File transfer
Server/client
Transmission
protocol layer
Frame Relay
Use of network services
IP-VPN
Transport layer
Message
Switching
TCP/IP
Legacy protocol
Concepts of IMTN
The CBS, at its 1998 extra-ordinary session, stressed that the MTN
shall be reviewed fundamentally to meet evolving data exchange
requirements of WMO Programmes other than the WWW. The IMTN
project has been promoting the reform of the MTN capability as a
genuine network since its commencement in 1999.
Reform concepts are:
(1) to provide capability and flexibility to meet new and future
requirements by using technical innovation;
(2) to seek cost-effectiveness with appropriate reliability and security;
(3) to challenge establishment of a collaborative contractual
framework;
(4) to keep up with an appropriate pace for implementation, i.e.
“early implementation leads early benefits.”
A point of implementation strategy is the evolution
from bilateral physical circuits
to logical connections through seamless network “cloud”.
Status of the IMTN project
The current IMTN is structured with two “clouds” of Frame Relay
network services.
• 17 of 25 MTN circuits are in operation on the Clouds.
• 12 of 18 MTN centers participate in the Clouds.
Cloud I
Tokyo
Melbourne
Washington
Buenos Aires
Brasilia
Beijing
Sofia
Moscow
Prague
Exeter
Jeddah
Offenbach
Cloud II
Nairobi
Toulouse
Dakar
New Delhi
Algiers
Cairo
Details of Cloud I
• Logical connections (PVC: Permanent Virtual Circuit) through BT
Frame Relay network
• Configuration of asymmetric bandwidths by CIR (Committed
Information Rate) for unbalanced traffic conditions
• Arrangement of backup re-routing with a dynamic routing protocol
(BGP-4)
Washington
1.5Mbps
Access circuit
1.5Mbps
32k
768k
32k
Tokyo
16k
4k
256kbps
Disaster Recovery Site
32k
32k
BT Frame Relay 16k
32k
16k
Brisbane
4k 16k
32k
16k
64k
64k
256kbps
Melbourne
Exeter
256kbps
Primary PVC
BoM Backup PVC
CIR in each direction
[bps]
Unbalanced traffic and asymmetric CIRs (Cloud I)
25 Mbytes/day
55% of CIR
CIR=32kbps
CIR=768kbps
Tokyo
1.5Mbps
FR
Washington
1.5Mbps
40% of CIR
Each pays for
its local access circuit
and an incoming CIR
1076 Mbytes/day
Backup Re-routing (Cloud I)
Washington
Cloud I
Tokyo
Link failure
BGP-4
Melbourne
Traffic on
normal condition
BGP-4
Bypass traffic
for backup
Details of Cloud II
• PVCs through OBS (Orange Business Service, former EQUANT)
Frame Relay network under expansion of the European contract
• Centralized network monitoring by ECMWF & Consumer Premise
Equipment (CPE, Cisco Router) managed by OBS
• Configuration of asymmetric bandwidths by CIR
Moscow
Beijing
Tokyo
New Delhi
CPE
CPE
128
kbps
64kbps
256kbps
256kbps
16k
16k
16k 8k
48k 96k
8k
32k
Cloud II
By OBS
CPE
CPE
CPE
256kbps
64k
48k
Sofia
32k
16k 8k
CPE
512kbps
8k
Prague
8k
128k
384k
512kbps
CPE
Exeter
64k
64kbps
1024
kbps
CPE
CPE
Jeddah
Offenbach
2048
kbps
CPE
Toulouse
Collaborative contract (Cloud II)
Customer
representative
(ECMWF)
Network service
provider
(OBS)
Master
Contract
Accession
Agreement
Network
monitoring
Helpdesk
Regional network in Europe
(RMDCN in Region VI)
Accession
Agreement
Accession
Agreement
IMTN Cloud II
Accession
Agreement
Accession
Agreement
Accession
Agreement
Benefits of IMTN
The implementation of the IMTN brings various benefits:
(1) further reliability
stable operation for real-time data exchange
(2) better performance in throughput
exchange of large volume of data such as satellite data/products
(3) manageable link parameters
efficient configuration to meet traffic conditions
(4) flexibility and scalability
easy compliance with evolving requirements
(5) cost-effectiveness
saving recurrent costs
Market trends of global managed data network services
• Migration from leased circuit, ATM and Frame Relay services to
MPLS/IP-VPN (Multi Protocol Label Switching/IP-Virtual Private Network)
is remarkable.
• Layer 2 switching VPN is one of next-generation WAN services but
premature in market.
[billion US$]
140
Retail scale of global WAN services
120
Estimation
Leased circuit
ATM/Cell Relay
Frame Relay
MPLS/IP-VPN
Layer 2 VPN
100
80
60
40
20
0
2003
2004
2005
2006
2007
2008
[year]
Market share of Tier-1 global network operators
Market leaders : Equant (OBS at present), AT&T and BT/BT Infonet
Their strategies:
• Extending service coverage by establishing new MPLS PoPs
(Points of Presence)
• Bilateral partnerships with national and regional telecom carriers
for MPLS interoperability outside of their footprints
Fast-growth markets : Asia and Eastern Europe
Equant
(present: OBS)
12%
SI/IT outsourcers
37%
AT&T
12%
BT/BT Infonet
11%
Other
network
operators
15%
Global WAN service share (2nd quarter of 2005)
MCI
7%
Sprint
1%
Cable & Wireless
2%
T-Systems
2%
NTT Communications
1%
MPLS/IP-VPN
MPLS/IP-VPN is one of most promising WAN services.
IP
IP Label
VPN
group
IP Label
IP
Core Router
CE
PE
Closed
IP network
by a provider
VPN group
CE
PE
Core Router
PE
CE
CE
Core Router
Provider’s PEs and Core Routers based on MPLS have Label Tables and switch IP packets forward
according to the Tables.
CE : Customer Edge Router
PE : Provider Edge Router
VPN : Virtual Private Network
MPLS : Multi Protocol Label Switching
Future of IMTN
MPLS/IP-VPN
GTS
IMTN
WIS
core network
Frame Relay
End of
2007
Cloud I
Early
2007
MPLS/IP-VPN
Frame Relay
Cloud II
Study of possibility of
consolidation of two Clouds
Coordination
For further improvement, migration from Frame Relay to MPLS/IP-VPN is
planned. MPLS/IP-VPN service provides:
• flexibility of mesh connectivity among GISCs
• additional bandwidth.
The IMTN would function as a WIS core network
linking a small number of GISCs together.
Slide 6
IMTN and managed data network services
Hiroyuki ICHIJO (Japan Meteorological Agency
Technical Conference on the WIS (Seoul, 6-8 November 2006)
MTN configuration
The Main Telecommunication Network (MTN) interconnects 6 Regional
Meteorological Telecommunication Networks (RMTNs) as a core of the GTS.
The MTN consists of 18 MTN Centres and 25 connections.
Region VI
Region I
Region II
Region V
Region IV
Region III
Strategies to improve the GTS
• Expanding bandwidth
• Flexible connectivity
• Saving recurrent cost
Use of
cost-effective
network services
Leased circuits
• Internet like applications
• Saving implementation costs
and human resources
• allowing latitude in selecting
a network service
Improved GTS
Migration to
TCP/IP
Legacy protocols
Strengthen the overall GTS capabilities
with cost-effectiveness and technical trends
Strategies
Traditional GTS
Layer separation approach to the improved GTS
File transfer
Adding applications
Server/client
Migration to TCP/IP
Application layer
Message
Switching
TCP/IP
Legacy protocol
File transfer
Server/client
Transmission
protocol layer
Frame Relay
Use of network services
IP-VPN
Transport layer
Message
Switching
TCP/IP
Legacy protocol
Concepts of IMTN
The CBS, at its 1998 extra-ordinary session, stressed that the MTN
shall be reviewed fundamentally to meet evolving data exchange
requirements of WMO Programmes other than the WWW. The IMTN
project has been promoting the reform of the MTN capability as a
genuine network since its commencement in 1999.
Reform concepts are:
(1) to provide capability and flexibility to meet new and future
requirements by using technical innovation;
(2) to seek cost-effectiveness with appropriate reliability and security;
(3) to challenge establishment of a collaborative contractual
framework;
(4) to keep up with an appropriate pace for implementation, i.e.
“early implementation leads early benefits.”
A point of implementation strategy is the evolution
from bilateral physical circuits
to logical connections through seamless network “cloud”.
Status of the IMTN project
The current IMTN is structured with two “clouds” of Frame Relay
network services.
• 17 of 25 MTN circuits are in operation on the Clouds.
• 12 of 18 MTN centers participate in the Clouds.
Cloud I
Tokyo
Melbourne
Washington
Buenos Aires
Brasilia
Beijing
Sofia
Moscow
Prague
Exeter
Jeddah
Offenbach
Cloud II
Nairobi
Toulouse
Dakar
New Delhi
Algiers
Cairo
Details of Cloud I
• Logical connections (PVC: Permanent Virtual Circuit) through BT
Frame Relay network
• Configuration of asymmetric bandwidths by CIR (Committed
Information Rate) for unbalanced traffic conditions
• Arrangement of backup re-routing with a dynamic routing protocol
(BGP-4)
Washington
1.5Mbps
Access circuit
1.5Mbps
32k
768k
32k
Tokyo
16k
4k
256kbps
Disaster Recovery Site
32k
32k
BT Frame Relay 16k
32k
16k
Brisbane
4k 16k
32k
16k
64k
64k
256kbps
Melbourne
Exeter
256kbps
Primary PVC
BoM Backup PVC
CIR in each direction
[bps]
Unbalanced traffic and asymmetric CIRs (Cloud I)
25 Mbytes/day
55% of CIR
CIR=32kbps
CIR=768kbps
Tokyo
1.5Mbps
FR
Washington
1.5Mbps
40% of CIR
Each pays for
its local access circuit
and an incoming CIR
1076 Mbytes/day
Backup Re-routing (Cloud I)
Washington
Cloud I
Tokyo
Link failure
BGP-4
Melbourne
Traffic on
normal condition
BGP-4
Bypass traffic
for backup
Details of Cloud II
• PVCs through OBS (Orange Business Service, former EQUANT)
Frame Relay network under expansion of the European contract
• Centralized network monitoring by ECMWF & Consumer Premise
Equipment (CPE, Cisco Router) managed by OBS
• Configuration of asymmetric bandwidths by CIR
Moscow
Beijing
Tokyo
New Delhi
CPE
CPE
128
kbps
64kbps
256kbps
256kbps
16k
16k
16k 8k
48k 96k
8k
32k
Cloud II
By OBS
CPE
CPE
CPE
256kbps
64k
48k
Sofia
32k
16k 8k
CPE
512kbps
8k
Prague
8k
128k
384k
512kbps
CPE
Exeter
64k
64kbps
1024
kbps
CPE
CPE
Jeddah
Offenbach
2048
kbps
CPE
Toulouse
Collaborative contract (Cloud II)
Customer
representative
(ECMWF)
Network service
provider
(OBS)
Master
Contract
Accession
Agreement
Network
monitoring
Helpdesk
Regional network in Europe
(RMDCN in Region VI)
Accession
Agreement
Accession
Agreement
IMTN Cloud II
Accession
Agreement
Accession
Agreement
Accession
Agreement
Benefits of IMTN
The implementation of the IMTN brings various benefits:
(1) further reliability
stable operation for real-time data exchange
(2) better performance in throughput
exchange of large volume of data such as satellite data/products
(3) manageable link parameters
efficient configuration to meet traffic conditions
(4) flexibility and scalability
easy compliance with evolving requirements
(5) cost-effectiveness
saving recurrent costs
Market trends of global managed data network services
• Migration from leased circuit, ATM and Frame Relay services to
MPLS/IP-VPN (Multi Protocol Label Switching/IP-Virtual Private Network)
is remarkable.
• Layer 2 switching VPN is one of next-generation WAN services but
premature in market.
[billion US$]
140
Retail scale of global WAN services
120
Estimation
Leased circuit
ATM/Cell Relay
Frame Relay
MPLS/IP-VPN
Layer 2 VPN
100
80
60
40
20
0
2003
2004
2005
2006
2007
2008
[year]
Market share of Tier-1 global network operators
Market leaders : Equant (OBS at present), AT&T and BT/BT Infonet
Their strategies:
• Extending service coverage by establishing new MPLS PoPs
(Points of Presence)
• Bilateral partnerships with national and regional telecom carriers
for MPLS interoperability outside of their footprints
Fast-growth markets : Asia and Eastern Europe
Equant
(present: OBS)
12%
SI/IT outsourcers
37%
AT&T
12%
BT/BT Infonet
11%
Other
network
operators
15%
Global WAN service share (2nd quarter of 2005)
MCI
7%
Sprint
1%
Cable & Wireless
2%
T-Systems
2%
NTT Communications
1%
MPLS/IP-VPN
MPLS/IP-VPN is one of most promising WAN services.
IP
IP Label
VPN
group
IP Label
IP
Core Router
CE
PE
Closed
IP network
by a provider
VPN group
CE
PE
Core Router
PE
CE
CE
Core Router
Provider’s PEs and Core Routers based on MPLS have Label Tables and switch IP packets forward
according to the Tables.
CE : Customer Edge Router
PE : Provider Edge Router
VPN : Virtual Private Network
MPLS : Multi Protocol Label Switching
Future of IMTN
MPLS/IP-VPN
GTS
IMTN
WIS
core network
Frame Relay
End of
2007
Cloud I
Early
2007
MPLS/IP-VPN
Frame Relay
Cloud II
Study of possibility of
consolidation of two Clouds
Coordination
For further improvement, migration from Frame Relay to MPLS/IP-VPN is
planned. MPLS/IP-VPN service provides:
• flexibility of mesh connectivity among GISCs
• additional bandwidth.
The IMTN would function as a WIS core network
linking a small number of GISCs together.
Slide 7
IMTN and managed data network services
Hiroyuki ICHIJO (Japan Meteorological Agency
Technical Conference on the WIS (Seoul, 6-8 November 2006)
MTN configuration
The Main Telecommunication Network (MTN) interconnects 6 Regional
Meteorological Telecommunication Networks (RMTNs) as a core of the GTS.
The MTN consists of 18 MTN Centres and 25 connections.
Region VI
Region I
Region II
Region V
Region IV
Region III
Strategies to improve the GTS
• Expanding bandwidth
• Flexible connectivity
• Saving recurrent cost
Use of
cost-effective
network services
Leased circuits
• Internet like applications
• Saving implementation costs
and human resources
• allowing latitude in selecting
a network service
Improved GTS
Migration to
TCP/IP
Legacy protocols
Strengthen the overall GTS capabilities
with cost-effectiveness and technical trends
Strategies
Traditional GTS
Layer separation approach to the improved GTS
File transfer
Adding applications
Server/client
Migration to TCP/IP
Application layer
Message
Switching
TCP/IP
Legacy protocol
File transfer
Server/client
Transmission
protocol layer
Frame Relay
Use of network services
IP-VPN
Transport layer
Message
Switching
TCP/IP
Legacy protocol
Concepts of IMTN
The CBS, at its 1998 extra-ordinary session, stressed that the MTN
shall be reviewed fundamentally to meet evolving data exchange
requirements of WMO Programmes other than the WWW. The IMTN
project has been promoting the reform of the MTN capability as a
genuine network since its commencement in 1999.
Reform concepts are:
(1) to provide capability and flexibility to meet new and future
requirements by using technical innovation;
(2) to seek cost-effectiveness with appropriate reliability and security;
(3) to challenge establishment of a collaborative contractual
framework;
(4) to keep up with an appropriate pace for implementation, i.e.
“early implementation leads early benefits.”
A point of implementation strategy is the evolution
from bilateral physical circuits
to logical connections through seamless network “cloud”.
Status of the IMTN project
The current IMTN is structured with two “clouds” of Frame Relay
network services.
• 17 of 25 MTN circuits are in operation on the Clouds.
• 12 of 18 MTN centers participate in the Clouds.
Cloud I
Tokyo
Melbourne
Washington
Buenos Aires
Brasilia
Beijing
Sofia
Moscow
Prague
Exeter
Jeddah
Offenbach
Cloud II
Nairobi
Toulouse
Dakar
New Delhi
Algiers
Cairo
Details of Cloud I
• Logical connections (PVC: Permanent Virtual Circuit) through BT
Frame Relay network
• Configuration of asymmetric bandwidths by CIR (Committed
Information Rate) for unbalanced traffic conditions
• Arrangement of backup re-routing with a dynamic routing protocol
(BGP-4)
Washington
1.5Mbps
Access circuit
1.5Mbps
32k
768k
32k
Tokyo
16k
4k
256kbps
Disaster Recovery Site
32k
32k
BT Frame Relay 16k
32k
16k
Brisbane
4k 16k
32k
16k
64k
64k
256kbps
Melbourne
Exeter
256kbps
Primary PVC
BoM Backup PVC
CIR in each direction
[bps]
Unbalanced traffic and asymmetric CIRs (Cloud I)
25 Mbytes/day
55% of CIR
CIR=32kbps
CIR=768kbps
Tokyo
1.5Mbps
FR
Washington
1.5Mbps
40% of CIR
Each pays for
its local access circuit
and an incoming CIR
1076 Mbytes/day
Backup Re-routing (Cloud I)
Washington
Cloud I
Tokyo
Link failure
BGP-4
Melbourne
Traffic on
normal condition
BGP-4
Bypass traffic
for backup
Details of Cloud II
• PVCs through OBS (Orange Business Service, former EQUANT)
Frame Relay network under expansion of the European contract
• Centralized network monitoring by ECMWF & Consumer Premise
Equipment (CPE, Cisco Router) managed by OBS
• Configuration of asymmetric bandwidths by CIR
Moscow
Beijing
Tokyo
New Delhi
CPE
CPE
128
kbps
64kbps
256kbps
256kbps
16k
16k
16k 8k
48k 96k
8k
32k
Cloud II
By OBS
CPE
CPE
CPE
256kbps
64k
48k
Sofia
32k
16k 8k
CPE
512kbps
8k
Prague
8k
128k
384k
512kbps
CPE
Exeter
64k
64kbps
1024
kbps
CPE
CPE
Jeddah
Offenbach
2048
kbps
CPE
Toulouse
Collaborative contract (Cloud II)
Customer
representative
(ECMWF)
Network service
provider
(OBS)
Master
Contract
Accession
Agreement
Network
monitoring
Helpdesk
Regional network in Europe
(RMDCN in Region VI)
Accession
Agreement
Accession
Agreement
IMTN Cloud II
Accession
Agreement
Accession
Agreement
Accession
Agreement
Benefits of IMTN
The implementation of the IMTN brings various benefits:
(1) further reliability
stable operation for real-time data exchange
(2) better performance in throughput
exchange of large volume of data such as satellite data/products
(3) manageable link parameters
efficient configuration to meet traffic conditions
(4) flexibility and scalability
easy compliance with evolving requirements
(5) cost-effectiveness
saving recurrent costs
Market trends of global managed data network services
• Migration from leased circuit, ATM and Frame Relay services to
MPLS/IP-VPN (Multi Protocol Label Switching/IP-Virtual Private Network)
is remarkable.
• Layer 2 switching VPN is one of next-generation WAN services but
premature in market.
[billion US$]
140
Retail scale of global WAN services
120
Estimation
Leased circuit
ATM/Cell Relay
Frame Relay
MPLS/IP-VPN
Layer 2 VPN
100
80
60
40
20
0
2003
2004
2005
2006
2007
2008
[year]
Market share of Tier-1 global network operators
Market leaders : Equant (OBS at present), AT&T and BT/BT Infonet
Their strategies:
• Extending service coverage by establishing new MPLS PoPs
(Points of Presence)
• Bilateral partnerships with national and regional telecom carriers
for MPLS interoperability outside of their footprints
Fast-growth markets : Asia and Eastern Europe
Equant
(present: OBS)
12%
SI/IT outsourcers
37%
AT&T
12%
BT/BT Infonet
11%
Other
network
operators
15%
Global WAN service share (2nd quarter of 2005)
MCI
7%
Sprint
1%
Cable & Wireless
2%
T-Systems
2%
NTT Communications
1%
MPLS/IP-VPN
MPLS/IP-VPN is one of most promising WAN services.
IP
IP Label
VPN
group
IP Label
IP
Core Router
CE
PE
Closed
IP network
by a provider
VPN group
CE
PE
Core Router
PE
CE
CE
Core Router
Provider’s PEs and Core Routers based on MPLS have Label Tables and switch IP packets forward
according to the Tables.
CE : Customer Edge Router
PE : Provider Edge Router
VPN : Virtual Private Network
MPLS : Multi Protocol Label Switching
Future of IMTN
MPLS/IP-VPN
GTS
IMTN
WIS
core network
Frame Relay
End of
2007
Cloud I
Early
2007
MPLS/IP-VPN
Frame Relay
Cloud II
Study of possibility of
consolidation of two Clouds
Coordination
For further improvement, migration from Frame Relay to MPLS/IP-VPN is
planned. MPLS/IP-VPN service provides:
• flexibility of mesh connectivity among GISCs
• additional bandwidth.
The IMTN would function as a WIS core network
linking a small number of GISCs together.
Slide 8
IMTN and managed data network services
Hiroyuki ICHIJO (Japan Meteorological Agency
Technical Conference on the WIS (Seoul, 6-8 November 2006)
MTN configuration
The Main Telecommunication Network (MTN) interconnects 6 Regional
Meteorological Telecommunication Networks (RMTNs) as a core of the GTS.
The MTN consists of 18 MTN Centres and 25 connections.
Region VI
Region I
Region II
Region V
Region IV
Region III
Strategies to improve the GTS
• Expanding bandwidth
• Flexible connectivity
• Saving recurrent cost
Use of
cost-effective
network services
Leased circuits
• Internet like applications
• Saving implementation costs
and human resources
• allowing latitude in selecting
a network service
Improved GTS
Migration to
TCP/IP
Legacy protocols
Strengthen the overall GTS capabilities
with cost-effectiveness and technical trends
Strategies
Traditional GTS
Layer separation approach to the improved GTS
File transfer
Adding applications
Server/client
Migration to TCP/IP
Application layer
Message
Switching
TCP/IP
Legacy protocol
File transfer
Server/client
Transmission
protocol layer
Frame Relay
Use of network services
IP-VPN
Transport layer
Message
Switching
TCP/IP
Legacy protocol
Concepts of IMTN
The CBS, at its 1998 extra-ordinary session, stressed that the MTN
shall be reviewed fundamentally to meet evolving data exchange
requirements of WMO Programmes other than the WWW. The IMTN
project has been promoting the reform of the MTN capability as a
genuine network since its commencement in 1999.
Reform concepts are:
(1) to provide capability and flexibility to meet new and future
requirements by using technical innovation;
(2) to seek cost-effectiveness with appropriate reliability and security;
(3) to challenge establishment of a collaborative contractual
framework;
(4) to keep up with an appropriate pace for implementation, i.e.
“early implementation leads early benefits.”
A point of implementation strategy is the evolution
from bilateral physical circuits
to logical connections through seamless network “cloud”.
Status of the IMTN project
The current IMTN is structured with two “clouds” of Frame Relay
network services.
• 17 of 25 MTN circuits are in operation on the Clouds.
• 12 of 18 MTN centers participate in the Clouds.
Cloud I
Tokyo
Melbourne
Washington
Buenos Aires
Brasilia
Beijing
Sofia
Moscow
Prague
Exeter
Jeddah
Offenbach
Cloud II
Nairobi
Toulouse
Dakar
New Delhi
Algiers
Cairo
Details of Cloud I
• Logical connections (PVC: Permanent Virtual Circuit) through BT
Frame Relay network
• Configuration of asymmetric bandwidths by CIR (Committed
Information Rate) for unbalanced traffic conditions
• Arrangement of backup re-routing with a dynamic routing protocol
(BGP-4)
Washington
1.5Mbps
Access circuit
1.5Mbps
32k
768k
32k
Tokyo
16k
4k
256kbps
Disaster Recovery Site
32k
32k
BT Frame Relay 16k
32k
16k
Brisbane
4k 16k
32k
16k
64k
64k
256kbps
Melbourne
Exeter
256kbps
Primary PVC
BoM Backup PVC
CIR in each direction
[bps]
Unbalanced traffic and asymmetric CIRs (Cloud I)
25 Mbytes/day
55% of CIR
CIR=32kbps
CIR=768kbps
Tokyo
1.5Mbps
FR
Washington
1.5Mbps
40% of CIR
Each pays for
its local access circuit
and an incoming CIR
1076 Mbytes/day
Backup Re-routing (Cloud I)
Washington
Cloud I
Tokyo
Link failure
BGP-4
Melbourne
Traffic on
normal condition
BGP-4
Bypass traffic
for backup
Details of Cloud II
• PVCs through OBS (Orange Business Service, former EQUANT)
Frame Relay network under expansion of the European contract
• Centralized network monitoring by ECMWF & Consumer Premise
Equipment (CPE, Cisco Router) managed by OBS
• Configuration of asymmetric bandwidths by CIR
Moscow
Beijing
Tokyo
New Delhi
CPE
CPE
128
kbps
64kbps
256kbps
256kbps
16k
16k
16k 8k
48k 96k
8k
32k
Cloud II
By OBS
CPE
CPE
CPE
256kbps
64k
48k
Sofia
32k
16k 8k
CPE
512kbps
8k
Prague
8k
128k
384k
512kbps
CPE
Exeter
64k
64kbps
1024
kbps
CPE
CPE
Jeddah
Offenbach
2048
kbps
CPE
Toulouse
Collaborative contract (Cloud II)
Customer
representative
(ECMWF)
Network service
provider
(OBS)
Master
Contract
Accession
Agreement
Network
monitoring
Helpdesk
Regional network in Europe
(RMDCN in Region VI)
Accession
Agreement
Accession
Agreement
IMTN Cloud II
Accession
Agreement
Accession
Agreement
Accession
Agreement
Benefits of IMTN
The implementation of the IMTN brings various benefits:
(1) further reliability
stable operation for real-time data exchange
(2) better performance in throughput
exchange of large volume of data such as satellite data/products
(3) manageable link parameters
efficient configuration to meet traffic conditions
(4) flexibility and scalability
easy compliance with evolving requirements
(5) cost-effectiveness
saving recurrent costs
Market trends of global managed data network services
• Migration from leased circuit, ATM and Frame Relay services to
MPLS/IP-VPN (Multi Protocol Label Switching/IP-Virtual Private Network)
is remarkable.
• Layer 2 switching VPN is one of next-generation WAN services but
premature in market.
[billion US$]
140
Retail scale of global WAN services
120
Estimation
Leased circuit
ATM/Cell Relay
Frame Relay
MPLS/IP-VPN
Layer 2 VPN
100
80
60
40
20
0
2003
2004
2005
2006
2007
2008
[year]
Market share of Tier-1 global network operators
Market leaders : Equant (OBS at present), AT&T and BT/BT Infonet
Their strategies:
• Extending service coverage by establishing new MPLS PoPs
(Points of Presence)
• Bilateral partnerships with national and regional telecom carriers
for MPLS interoperability outside of their footprints
Fast-growth markets : Asia and Eastern Europe
Equant
(present: OBS)
12%
SI/IT outsourcers
37%
AT&T
12%
BT/BT Infonet
11%
Other
network
operators
15%
Global WAN service share (2nd quarter of 2005)
MCI
7%
Sprint
1%
Cable & Wireless
2%
T-Systems
2%
NTT Communications
1%
MPLS/IP-VPN
MPLS/IP-VPN is one of most promising WAN services.
IP
IP Label
VPN
group
IP Label
IP
Core Router
CE
PE
Closed
IP network
by a provider
VPN group
CE
PE
Core Router
PE
CE
CE
Core Router
Provider’s PEs and Core Routers based on MPLS have Label Tables and switch IP packets forward
according to the Tables.
CE : Customer Edge Router
PE : Provider Edge Router
VPN : Virtual Private Network
MPLS : Multi Protocol Label Switching
Future of IMTN
MPLS/IP-VPN
GTS
IMTN
WIS
core network
Frame Relay
End of
2007
Cloud I
Early
2007
MPLS/IP-VPN
Frame Relay
Cloud II
Study of possibility of
consolidation of two Clouds
Coordination
For further improvement, migration from Frame Relay to MPLS/IP-VPN is
planned. MPLS/IP-VPN service provides:
• flexibility of mesh connectivity among GISCs
• additional bandwidth.
The IMTN would function as a WIS core network
linking a small number of GISCs together.
Slide 9
IMTN and managed data network services
Hiroyuki ICHIJO (Japan Meteorological Agency
Technical Conference on the WIS (Seoul, 6-8 November 2006)
MTN configuration
The Main Telecommunication Network (MTN) interconnects 6 Regional
Meteorological Telecommunication Networks (RMTNs) as a core of the GTS.
The MTN consists of 18 MTN Centres and 25 connections.
Region VI
Region I
Region II
Region V
Region IV
Region III
Strategies to improve the GTS
• Expanding bandwidth
• Flexible connectivity
• Saving recurrent cost
Use of
cost-effective
network services
Leased circuits
• Internet like applications
• Saving implementation costs
and human resources
• allowing latitude in selecting
a network service
Improved GTS
Migration to
TCP/IP
Legacy protocols
Strengthen the overall GTS capabilities
with cost-effectiveness and technical trends
Strategies
Traditional GTS
Layer separation approach to the improved GTS
File transfer
Adding applications
Server/client
Migration to TCP/IP
Application layer
Message
Switching
TCP/IP
Legacy protocol
File transfer
Server/client
Transmission
protocol layer
Frame Relay
Use of network services
IP-VPN
Transport layer
Message
Switching
TCP/IP
Legacy protocol
Concepts of IMTN
The CBS, at its 1998 extra-ordinary session, stressed that the MTN
shall be reviewed fundamentally to meet evolving data exchange
requirements of WMO Programmes other than the WWW. The IMTN
project has been promoting the reform of the MTN capability as a
genuine network since its commencement in 1999.
Reform concepts are:
(1) to provide capability and flexibility to meet new and future
requirements by using technical innovation;
(2) to seek cost-effectiveness with appropriate reliability and security;
(3) to challenge establishment of a collaborative contractual
framework;
(4) to keep up with an appropriate pace for implementation, i.e.
“early implementation leads early benefits.”
A point of implementation strategy is the evolution
from bilateral physical circuits
to logical connections through seamless network “cloud”.
Status of the IMTN project
The current IMTN is structured with two “clouds” of Frame Relay
network services.
• 17 of 25 MTN circuits are in operation on the Clouds.
• 12 of 18 MTN centers participate in the Clouds.
Cloud I
Tokyo
Melbourne
Washington
Buenos Aires
Brasilia
Beijing
Sofia
Moscow
Prague
Exeter
Jeddah
Offenbach
Cloud II
Nairobi
Toulouse
Dakar
New Delhi
Algiers
Cairo
Details of Cloud I
• Logical connections (PVC: Permanent Virtual Circuit) through BT
Frame Relay network
• Configuration of asymmetric bandwidths by CIR (Committed
Information Rate) for unbalanced traffic conditions
• Arrangement of backup re-routing with a dynamic routing protocol
(BGP-4)
Washington
1.5Mbps
Access circuit
1.5Mbps
32k
768k
32k
Tokyo
16k
4k
256kbps
Disaster Recovery Site
32k
32k
BT Frame Relay 16k
32k
16k
Brisbane
4k 16k
32k
16k
64k
64k
256kbps
Melbourne
Exeter
256kbps
Primary PVC
BoM Backup PVC
CIR in each direction
[bps]
Unbalanced traffic and asymmetric CIRs (Cloud I)
25 Mbytes/day
55% of CIR
CIR=32kbps
CIR=768kbps
Tokyo
1.5Mbps
FR
Washington
1.5Mbps
40% of CIR
Each pays for
its local access circuit
and an incoming CIR
1076 Mbytes/day
Backup Re-routing (Cloud I)
Washington
Cloud I
Tokyo
Link failure
BGP-4
Melbourne
Traffic on
normal condition
BGP-4
Bypass traffic
for backup
Details of Cloud II
• PVCs through OBS (Orange Business Service, former EQUANT)
Frame Relay network under expansion of the European contract
• Centralized network monitoring by ECMWF & Consumer Premise
Equipment (CPE, Cisco Router) managed by OBS
• Configuration of asymmetric bandwidths by CIR
Moscow
Beijing
Tokyo
New Delhi
CPE
CPE
128
kbps
64kbps
256kbps
256kbps
16k
16k
16k 8k
48k 96k
8k
32k
Cloud II
By OBS
CPE
CPE
CPE
256kbps
64k
48k
Sofia
32k
16k 8k
CPE
512kbps
8k
Prague
8k
128k
384k
512kbps
CPE
Exeter
64k
64kbps
1024
kbps
CPE
CPE
Jeddah
Offenbach
2048
kbps
CPE
Toulouse
Collaborative contract (Cloud II)
Customer
representative
(ECMWF)
Network service
provider
(OBS)
Master
Contract
Accession
Agreement
Network
monitoring
Helpdesk
Regional network in Europe
(RMDCN in Region VI)
Accession
Agreement
Accession
Agreement
IMTN Cloud II
Accession
Agreement
Accession
Agreement
Accession
Agreement
Benefits of IMTN
The implementation of the IMTN brings various benefits:
(1) further reliability
stable operation for real-time data exchange
(2) better performance in throughput
exchange of large volume of data such as satellite data/products
(3) manageable link parameters
efficient configuration to meet traffic conditions
(4) flexibility and scalability
easy compliance with evolving requirements
(5) cost-effectiveness
saving recurrent costs
Market trends of global managed data network services
• Migration from leased circuit, ATM and Frame Relay services to
MPLS/IP-VPN (Multi Protocol Label Switching/IP-Virtual Private Network)
is remarkable.
• Layer 2 switching VPN is one of next-generation WAN services but
premature in market.
[billion US$]
140
Retail scale of global WAN services
120
Estimation
Leased circuit
ATM/Cell Relay
Frame Relay
MPLS/IP-VPN
Layer 2 VPN
100
80
60
40
20
0
2003
2004
2005
2006
2007
2008
[year]
Market share of Tier-1 global network operators
Market leaders : Equant (OBS at present), AT&T and BT/BT Infonet
Their strategies:
• Extending service coverage by establishing new MPLS PoPs
(Points of Presence)
• Bilateral partnerships with national and regional telecom carriers
for MPLS interoperability outside of their footprints
Fast-growth markets : Asia and Eastern Europe
Equant
(present: OBS)
12%
SI/IT outsourcers
37%
AT&T
12%
BT/BT Infonet
11%
Other
network
operators
15%
Global WAN service share (2nd quarter of 2005)
MCI
7%
Sprint
1%
Cable & Wireless
2%
T-Systems
2%
NTT Communications
1%
MPLS/IP-VPN
MPLS/IP-VPN is one of most promising WAN services.
IP
IP Label
VPN
group
IP Label
IP
Core Router
CE
PE
Closed
IP network
by a provider
VPN group
CE
PE
Core Router
PE
CE
CE
Core Router
Provider’s PEs and Core Routers based on MPLS have Label Tables and switch IP packets forward
according to the Tables.
CE : Customer Edge Router
PE : Provider Edge Router
VPN : Virtual Private Network
MPLS : Multi Protocol Label Switching
Future of IMTN
MPLS/IP-VPN
GTS
IMTN
WIS
core network
Frame Relay
End of
2007
Cloud I
Early
2007
MPLS/IP-VPN
Frame Relay
Cloud II
Study of possibility of
consolidation of two Clouds
Coordination
For further improvement, migration from Frame Relay to MPLS/IP-VPN is
planned. MPLS/IP-VPN service provides:
• flexibility of mesh connectivity among GISCs
• additional bandwidth.
The IMTN would function as a WIS core network
linking a small number of GISCs together.
Slide 10
IMTN and managed data network services
Hiroyuki ICHIJO (Japan Meteorological Agency
Technical Conference on the WIS (Seoul, 6-8 November 2006)
MTN configuration
The Main Telecommunication Network (MTN) interconnects 6 Regional
Meteorological Telecommunication Networks (RMTNs) as a core of the GTS.
The MTN consists of 18 MTN Centres and 25 connections.
Region VI
Region I
Region II
Region V
Region IV
Region III
Strategies to improve the GTS
• Expanding bandwidth
• Flexible connectivity
• Saving recurrent cost
Use of
cost-effective
network services
Leased circuits
• Internet like applications
• Saving implementation costs
and human resources
• allowing latitude in selecting
a network service
Improved GTS
Migration to
TCP/IP
Legacy protocols
Strengthen the overall GTS capabilities
with cost-effectiveness and technical trends
Strategies
Traditional GTS
Layer separation approach to the improved GTS
File transfer
Adding applications
Server/client
Migration to TCP/IP
Application layer
Message
Switching
TCP/IP
Legacy protocol
File transfer
Server/client
Transmission
protocol layer
Frame Relay
Use of network services
IP-VPN
Transport layer
Message
Switching
TCP/IP
Legacy protocol
Concepts of IMTN
The CBS, at its 1998 extra-ordinary session, stressed that the MTN
shall be reviewed fundamentally to meet evolving data exchange
requirements of WMO Programmes other than the WWW. The IMTN
project has been promoting the reform of the MTN capability as a
genuine network since its commencement in 1999.
Reform concepts are:
(1) to provide capability and flexibility to meet new and future
requirements by using technical innovation;
(2) to seek cost-effectiveness with appropriate reliability and security;
(3) to challenge establishment of a collaborative contractual
framework;
(4) to keep up with an appropriate pace for implementation, i.e.
“early implementation leads early benefits.”
A point of implementation strategy is the evolution
from bilateral physical circuits
to logical connections through seamless network “cloud”.
Status of the IMTN project
The current IMTN is structured with two “clouds” of Frame Relay
network services.
• 17 of 25 MTN circuits are in operation on the Clouds.
• 12 of 18 MTN centers participate in the Clouds.
Cloud I
Tokyo
Melbourne
Washington
Buenos Aires
Brasilia
Beijing
Sofia
Moscow
Prague
Exeter
Jeddah
Offenbach
Cloud II
Nairobi
Toulouse
Dakar
New Delhi
Algiers
Cairo
Details of Cloud I
• Logical connections (PVC: Permanent Virtual Circuit) through BT
Frame Relay network
• Configuration of asymmetric bandwidths by CIR (Committed
Information Rate) for unbalanced traffic conditions
• Arrangement of backup re-routing with a dynamic routing protocol
(BGP-4)
Washington
1.5Mbps
Access circuit
1.5Mbps
32k
768k
32k
Tokyo
16k
4k
256kbps
Disaster Recovery Site
32k
32k
BT Frame Relay 16k
32k
16k
Brisbane
4k 16k
32k
16k
64k
64k
256kbps
Melbourne
Exeter
256kbps
Primary PVC
BoM Backup PVC
CIR in each direction
[bps]
Unbalanced traffic and asymmetric CIRs (Cloud I)
25 Mbytes/day
55% of CIR
CIR=32kbps
CIR=768kbps
Tokyo
1.5Mbps
FR
Washington
1.5Mbps
40% of CIR
Each pays for
its local access circuit
and an incoming CIR
1076 Mbytes/day
Backup Re-routing (Cloud I)
Washington
Cloud I
Tokyo
Link failure
BGP-4
Melbourne
Traffic on
normal condition
BGP-4
Bypass traffic
for backup
Details of Cloud II
• PVCs through OBS (Orange Business Service, former EQUANT)
Frame Relay network under expansion of the European contract
• Centralized network monitoring by ECMWF & Consumer Premise
Equipment (CPE, Cisco Router) managed by OBS
• Configuration of asymmetric bandwidths by CIR
Moscow
Beijing
Tokyo
New Delhi
CPE
CPE
128
kbps
64kbps
256kbps
256kbps
16k
16k
16k 8k
48k 96k
8k
32k
Cloud II
By OBS
CPE
CPE
CPE
256kbps
64k
48k
Sofia
32k
16k 8k
CPE
512kbps
8k
Prague
8k
128k
384k
512kbps
CPE
Exeter
64k
64kbps
1024
kbps
CPE
CPE
Jeddah
Offenbach
2048
kbps
CPE
Toulouse
Collaborative contract (Cloud II)
Customer
representative
(ECMWF)
Network service
provider
(OBS)
Master
Contract
Accession
Agreement
Network
monitoring
Helpdesk
Regional network in Europe
(RMDCN in Region VI)
Accession
Agreement
Accession
Agreement
IMTN Cloud II
Accession
Agreement
Accession
Agreement
Accession
Agreement
Benefits of IMTN
The implementation of the IMTN brings various benefits:
(1) further reliability
stable operation for real-time data exchange
(2) better performance in throughput
exchange of large volume of data such as satellite data/products
(3) manageable link parameters
efficient configuration to meet traffic conditions
(4) flexibility and scalability
easy compliance with evolving requirements
(5) cost-effectiveness
saving recurrent costs
Market trends of global managed data network services
• Migration from leased circuit, ATM and Frame Relay services to
MPLS/IP-VPN (Multi Protocol Label Switching/IP-Virtual Private Network)
is remarkable.
• Layer 2 switching VPN is one of next-generation WAN services but
premature in market.
[billion US$]
140
Retail scale of global WAN services
120
Estimation
Leased circuit
ATM/Cell Relay
Frame Relay
MPLS/IP-VPN
Layer 2 VPN
100
80
60
40
20
0
2003
2004
2005
2006
2007
2008
[year]
Market share of Tier-1 global network operators
Market leaders : Equant (OBS at present), AT&T and BT/BT Infonet
Their strategies:
• Extending service coverage by establishing new MPLS PoPs
(Points of Presence)
• Bilateral partnerships with national and regional telecom carriers
for MPLS interoperability outside of their footprints
Fast-growth markets : Asia and Eastern Europe
Equant
(present: OBS)
12%
SI/IT outsourcers
37%
AT&T
12%
BT/BT Infonet
11%
Other
network
operators
15%
Global WAN service share (2nd quarter of 2005)
MCI
7%
Sprint
1%
Cable & Wireless
2%
T-Systems
2%
NTT Communications
1%
MPLS/IP-VPN
MPLS/IP-VPN is one of most promising WAN services.
IP
IP Label
VPN
group
IP Label
IP
Core Router
CE
PE
Closed
IP network
by a provider
VPN group
CE
PE
Core Router
PE
CE
CE
Core Router
Provider’s PEs and Core Routers based on MPLS have Label Tables and switch IP packets forward
according to the Tables.
CE : Customer Edge Router
PE : Provider Edge Router
VPN : Virtual Private Network
MPLS : Multi Protocol Label Switching
Future of IMTN
MPLS/IP-VPN
GTS
IMTN
WIS
core network
Frame Relay
End of
2007
Cloud I
Early
2007
MPLS/IP-VPN
Frame Relay
Cloud II
Study of possibility of
consolidation of two Clouds
Coordination
For further improvement, migration from Frame Relay to MPLS/IP-VPN is
planned. MPLS/IP-VPN service provides:
• flexibility of mesh connectivity among GISCs
• additional bandwidth.
The IMTN would function as a WIS core network
linking a small number of GISCs together.
Slide 11
IMTN and managed data network services
Hiroyuki ICHIJO (Japan Meteorological Agency
Technical Conference on the WIS (Seoul, 6-8 November 2006)
MTN configuration
The Main Telecommunication Network (MTN) interconnects 6 Regional
Meteorological Telecommunication Networks (RMTNs) as a core of the GTS.
The MTN consists of 18 MTN Centres and 25 connections.
Region VI
Region I
Region II
Region V
Region IV
Region III
Strategies to improve the GTS
• Expanding bandwidth
• Flexible connectivity
• Saving recurrent cost
Use of
cost-effective
network services
Leased circuits
• Internet like applications
• Saving implementation costs
and human resources
• allowing latitude in selecting
a network service
Improved GTS
Migration to
TCP/IP
Legacy protocols
Strengthen the overall GTS capabilities
with cost-effectiveness and technical trends
Strategies
Traditional GTS
Layer separation approach to the improved GTS
File transfer
Adding applications
Server/client
Migration to TCP/IP
Application layer
Message
Switching
TCP/IP
Legacy protocol
File transfer
Server/client
Transmission
protocol layer
Frame Relay
Use of network services
IP-VPN
Transport layer
Message
Switching
TCP/IP
Legacy protocol
Concepts of IMTN
The CBS, at its 1998 extra-ordinary session, stressed that the MTN
shall be reviewed fundamentally to meet evolving data exchange
requirements of WMO Programmes other than the WWW. The IMTN
project has been promoting the reform of the MTN capability as a
genuine network since its commencement in 1999.
Reform concepts are:
(1) to provide capability and flexibility to meet new and future
requirements by using technical innovation;
(2) to seek cost-effectiveness with appropriate reliability and security;
(3) to challenge establishment of a collaborative contractual
framework;
(4) to keep up with an appropriate pace for implementation, i.e.
“early implementation leads early benefits.”
A point of implementation strategy is the evolution
from bilateral physical circuits
to logical connections through seamless network “cloud”.
Status of the IMTN project
The current IMTN is structured with two “clouds” of Frame Relay
network services.
• 17 of 25 MTN circuits are in operation on the Clouds.
• 12 of 18 MTN centers participate in the Clouds.
Cloud I
Tokyo
Melbourne
Washington
Buenos Aires
Brasilia
Beijing
Sofia
Moscow
Prague
Exeter
Jeddah
Offenbach
Cloud II
Nairobi
Toulouse
Dakar
New Delhi
Algiers
Cairo
Details of Cloud I
• Logical connections (PVC: Permanent Virtual Circuit) through BT
Frame Relay network
• Configuration of asymmetric bandwidths by CIR (Committed
Information Rate) for unbalanced traffic conditions
• Arrangement of backup re-routing with a dynamic routing protocol
(BGP-4)
Washington
1.5Mbps
Access circuit
1.5Mbps
32k
768k
32k
Tokyo
16k
4k
256kbps
Disaster Recovery Site
32k
32k
BT Frame Relay 16k
32k
16k
Brisbane
4k 16k
32k
16k
64k
64k
256kbps
Melbourne
Exeter
256kbps
Primary PVC
BoM Backup PVC
CIR in each direction
[bps]
Unbalanced traffic and asymmetric CIRs (Cloud I)
25 Mbytes/day
55% of CIR
CIR=32kbps
CIR=768kbps
Tokyo
1.5Mbps
FR
Washington
1.5Mbps
40% of CIR
Each pays for
its local access circuit
and an incoming CIR
1076 Mbytes/day
Backup Re-routing (Cloud I)
Washington
Cloud I
Tokyo
Link failure
BGP-4
Melbourne
Traffic on
normal condition
BGP-4
Bypass traffic
for backup
Details of Cloud II
• PVCs through OBS (Orange Business Service, former EQUANT)
Frame Relay network under expansion of the European contract
• Centralized network monitoring by ECMWF & Consumer Premise
Equipment (CPE, Cisco Router) managed by OBS
• Configuration of asymmetric bandwidths by CIR
Moscow
Beijing
Tokyo
New Delhi
CPE
CPE
128
kbps
64kbps
256kbps
256kbps
16k
16k
16k 8k
48k 96k
8k
32k
Cloud II
By OBS
CPE
CPE
CPE
256kbps
64k
48k
Sofia
32k
16k 8k
CPE
512kbps
8k
Prague
8k
128k
384k
512kbps
CPE
Exeter
64k
64kbps
1024
kbps
CPE
CPE
Jeddah
Offenbach
2048
kbps
CPE
Toulouse
Collaborative contract (Cloud II)
Customer
representative
(ECMWF)
Network service
provider
(OBS)
Master
Contract
Accession
Agreement
Network
monitoring
Helpdesk
Regional network in Europe
(RMDCN in Region VI)
Accession
Agreement
Accession
Agreement
IMTN Cloud II
Accession
Agreement
Accession
Agreement
Accession
Agreement
Benefits of IMTN
The implementation of the IMTN brings various benefits:
(1) further reliability
stable operation for real-time data exchange
(2) better performance in throughput
exchange of large volume of data such as satellite data/products
(3) manageable link parameters
efficient configuration to meet traffic conditions
(4) flexibility and scalability
easy compliance with evolving requirements
(5) cost-effectiveness
saving recurrent costs
Market trends of global managed data network services
• Migration from leased circuit, ATM and Frame Relay services to
MPLS/IP-VPN (Multi Protocol Label Switching/IP-Virtual Private Network)
is remarkable.
• Layer 2 switching VPN is one of next-generation WAN services but
premature in market.
[billion US$]
140
Retail scale of global WAN services
120
Estimation
Leased circuit
ATM/Cell Relay
Frame Relay
MPLS/IP-VPN
Layer 2 VPN
100
80
60
40
20
0
2003
2004
2005
2006
2007
2008
[year]
Market share of Tier-1 global network operators
Market leaders : Equant (OBS at present), AT&T and BT/BT Infonet
Their strategies:
• Extending service coverage by establishing new MPLS PoPs
(Points of Presence)
• Bilateral partnerships with national and regional telecom carriers
for MPLS interoperability outside of their footprints
Fast-growth markets : Asia and Eastern Europe
Equant
(present: OBS)
12%
SI/IT outsourcers
37%
AT&T
12%
BT/BT Infonet
11%
Other
network
operators
15%
Global WAN service share (2nd quarter of 2005)
MCI
7%
Sprint
1%
Cable & Wireless
2%
T-Systems
2%
NTT Communications
1%
MPLS/IP-VPN
MPLS/IP-VPN is one of most promising WAN services.
IP
IP Label
VPN
group
IP Label
IP
Core Router
CE
PE
Closed
IP network
by a provider
VPN group
CE
PE
Core Router
PE
CE
CE
Core Router
Provider’s PEs and Core Routers based on MPLS have Label Tables and switch IP packets forward
according to the Tables.
CE : Customer Edge Router
PE : Provider Edge Router
VPN : Virtual Private Network
MPLS : Multi Protocol Label Switching
Future of IMTN
MPLS/IP-VPN
GTS
IMTN
WIS
core network
Frame Relay
End of
2007
Cloud I
Early
2007
MPLS/IP-VPN
Frame Relay
Cloud II
Study of possibility of
consolidation of two Clouds
Coordination
For further improvement, migration from Frame Relay to MPLS/IP-VPN is
planned. MPLS/IP-VPN service provides:
• flexibility of mesh connectivity among GISCs
• additional bandwidth.
The IMTN would function as a WIS core network
linking a small number of GISCs together.
Slide 12
IMTN and managed data network services
Hiroyuki ICHIJO (Japan Meteorological Agency
Technical Conference on the WIS (Seoul, 6-8 November 2006)
MTN configuration
The Main Telecommunication Network (MTN) interconnects 6 Regional
Meteorological Telecommunication Networks (RMTNs) as a core of the GTS.
The MTN consists of 18 MTN Centres and 25 connections.
Region VI
Region I
Region II
Region V
Region IV
Region III
Strategies to improve the GTS
• Expanding bandwidth
• Flexible connectivity
• Saving recurrent cost
Use of
cost-effective
network services
Leased circuits
• Internet like applications
• Saving implementation costs
and human resources
• allowing latitude in selecting
a network service
Improved GTS
Migration to
TCP/IP
Legacy protocols
Strengthen the overall GTS capabilities
with cost-effectiveness and technical trends
Strategies
Traditional GTS
Layer separation approach to the improved GTS
File transfer
Adding applications
Server/client
Migration to TCP/IP
Application layer
Message
Switching
TCP/IP
Legacy protocol
File transfer
Server/client
Transmission
protocol layer
Frame Relay
Use of network services
IP-VPN
Transport layer
Message
Switching
TCP/IP
Legacy protocol
Concepts of IMTN
The CBS, at its 1998 extra-ordinary session, stressed that the MTN
shall be reviewed fundamentally to meet evolving data exchange
requirements of WMO Programmes other than the WWW. The IMTN
project has been promoting the reform of the MTN capability as a
genuine network since its commencement in 1999.
Reform concepts are:
(1) to provide capability and flexibility to meet new and future
requirements by using technical innovation;
(2) to seek cost-effectiveness with appropriate reliability and security;
(3) to challenge establishment of a collaborative contractual
framework;
(4) to keep up with an appropriate pace for implementation, i.e.
“early implementation leads early benefits.”
A point of implementation strategy is the evolution
from bilateral physical circuits
to logical connections through seamless network “cloud”.
Status of the IMTN project
The current IMTN is structured with two “clouds” of Frame Relay
network services.
• 17 of 25 MTN circuits are in operation on the Clouds.
• 12 of 18 MTN centers participate in the Clouds.
Cloud I
Tokyo
Melbourne
Washington
Buenos Aires
Brasilia
Beijing
Sofia
Moscow
Prague
Exeter
Jeddah
Offenbach
Cloud II
Nairobi
Toulouse
Dakar
New Delhi
Algiers
Cairo
Details of Cloud I
• Logical connections (PVC: Permanent Virtual Circuit) through BT
Frame Relay network
• Configuration of asymmetric bandwidths by CIR (Committed
Information Rate) for unbalanced traffic conditions
• Arrangement of backup re-routing with a dynamic routing protocol
(BGP-4)
Washington
1.5Mbps
Access circuit
1.5Mbps
32k
768k
32k
Tokyo
16k
4k
256kbps
Disaster Recovery Site
32k
32k
BT Frame Relay 16k
32k
16k
Brisbane
4k 16k
32k
16k
64k
64k
256kbps
Melbourne
Exeter
256kbps
Primary PVC
BoM Backup PVC
CIR in each direction
[bps]
Unbalanced traffic and asymmetric CIRs (Cloud I)
25 Mbytes/day
55% of CIR
CIR=32kbps
CIR=768kbps
Tokyo
1.5Mbps
FR
Washington
1.5Mbps
40% of CIR
Each pays for
its local access circuit
and an incoming CIR
1076 Mbytes/day
Backup Re-routing (Cloud I)
Washington
Cloud I
Tokyo
Link failure
BGP-4
Melbourne
Traffic on
normal condition
BGP-4
Bypass traffic
for backup
Details of Cloud II
• PVCs through OBS (Orange Business Service, former EQUANT)
Frame Relay network under expansion of the European contract
• Centralized network monitoring by ECMWF & Consumer Premise
Equipment (CPE, Cisco Router) managed by OBS
• Configuration of asymmetric bandwidths by CIR
Moscow
Beijing
Tokyo
New Delhi
CPE
CPE
128
kbps
64kbps
256kbps
256kbps
16k
16k
16k 8k
48k 96k
8k
32k
Cloud II
By OBS
CPE
CPE
CPE
256kbps
64k
48k
Sofia
32k
16k 8k
CPE
512kbps
8k
Prague
8k
128k
384k
512kbps
CPE
Exeter
64k
64kbps
1024
kbps
CPE
CPE
Jeddah
Offenbach
2048
kbps
CPE
Toulouse
Collaborative contract (Cloud II)
Customer
representative
(ECMWF)
Network service
provider
(OBS)
Master
Contract
Accession
Agreement
Network
monitoring
Helpdesk
Regional network in Europe
(RMDCN in Region VI)
Accession
Agreement
Accession
Agreement
IMTN Cloud II
Accession
Agreement
Accession
Agreement
Accession
Agreement
Benefits of IMTN
The implementation of the IMTN brings various benefits:
(1) further reliability
stable operation for real-time data exchange
(2) better performance in throughput
exchange of large volume of data such as satellite data/products
(3) manageable link parameters
efficient configuration to meet traffic conditions
(4) flexibility and scalability
easy compliance with evolving requirements
(5) cost-effectiveness
saving recurrent costs
Market trends of global managed data network services
• Migration from leased circuit, ATM and Frame Relay services to
MPLS/IP-VPN (Multi Protocol Label Switching/IP-Virtual Private Network)
is remarkable.
• Layer 2 switching VPN is one of next-generation WAN services but
premature in market.
[billion US$]
140
Retail scale of global WAN services
120
Estimation
Leased circuit
ATM/Cell Relay
Frame Relay
MPLS/IP-VPN
Layer 2 VPN
100
80
60
40
20
0
2003
2004
2005
2006
2007
2008
[year]
Market share of Tier-1 global network operators
Market leaders : Equant (OBS at present), AT&T and BT/BT Infonet
Their strategies:
• Extending service coverage by establishing new MPLS PoPs
(Points of Presence)
• Bilateral partnerships with national and regional telecom carriers
for MPLS interoperability outside of their footprints
Fast-growth markets : Asia and Eastern Europe
Equant
(present: OBS)
12%
SI/IT outsourcers
37%
AT&T
12%
BT/BT Infonet
11%
Other
network
operators
15%
Global WAN service share (2nd quarter of 2005)
MCI
7%
Sprint
1%
Cable & Wireless
2%
T-Systems
2%
NTT Communications
1%
MPLS/IP-VPN
MPLS/IP-VPN is one of most promising WAN services.
IP
IP Label
VPN
group
IP Label
IP
Core Router
CE
PE
Closed
IP network
by a provider
VPN group
CE
PE
Core Router
PE
CE
CE
Core Router
Provider’s PEs and Core Routers based on MPLS have Label Tables and switch IP packets forward
according to the Tables.
CE : Customer Edge Router
PE : Provider Edge Router
VPN : Virtual Private Network
MPLS : Multi Protocol Label Switching
Future of IMTN
MPLS/IP-VPN
GTS
IMTN
WIS
core network
Frame Relay
End of
2007
Cloud I
Early
2007
MPLS/IP-VPN
Frame Relay
Cloud II
Study of possibility of
consolidation of two Clouds
Coordination
For further improvement, migration from Frame Relay to MPLS/IP-VPN is
planned. MPLS/IP-VPN service provides:
• flexibility of mesh connectivity among GISCs
• additional bandwidth.
The IMTN would function as a WIS core network
linking a small number of GISCs together.
Slide 13
IMTN and managed data network services
Hiroyuki ICHIJO (Japan Meteorological Agency
Technical Conference on the WIS (Seoul, 6-8 November 2006)
MTN configuration
The Main Telecommunication Network (MTN) interconnects 6 Regional
Meteorological Telecommunication Networks (RMTNs) as a core of the GTS.
The MTN consists of 18 MTN Centres and 25 connections.
Region VI
Region I
Region II
Region V
Region IV
Region III
Strategies to improve the GTS
• Expanding bandwidth
• Flexible connectivity
• Saving recurrent cost
Use of
cost-effective
network services
Leased circuits
• Internet like applications
• Saving implementation costs
and human resources
• allowing latitude in selecting
a network service
Improved GTS
Migration to
TCP/IP
Legacy protocols
Strengthen the overall GTS capabilities
with cost-effectiveness and technical trends
Strategies
Traditional GTS
Layer separation approach to the improved GTS
File transfer
Adding applications
Server/client
Migration to TCP/IP
Application layer
Message
Switching
TCP/IP
Legacy protocol
File transfer
Server/client
Transmission
protocol layer
Frame Relay
Use of network services
IP-VPN
Transport layer
Message
Switching
TCP/IP
Legacy protocol
Concepts of IMTN
The CBS, at its 1998 extra-ordinary session, stressed that the MTN
shall be reviewed fundamentally to meet evolving data exchange
requirements of WMO Programmes other than the WWW. The IMTN
project has been promoting the reform of the MTN capability as a
genuine network since its commencement in 1999.
Reform concepts are:
(1) to provide capability and flexibility to meet new and future
requirements by using technical innovation;
(2) to seek cost-effectiveness with appropriate reliability and security;
(3) to challenge establishment of a collaborative contractual
framework;
(4) to keep up with an appropriate pace for implementation, i.e.
“early implementation leads early benefits.”
A point of implementation strategy is the evolution
from bilateral physical circuits
to logical connections through seamless network “cloud”.
Status of the IMTN project
The current IMTN is structured with two “clouds” of Frame Relay
network services.
• 17 of 25 MTN circuits are in operation on the Clouds.
• 12 of 18 MTN centers participate in the Clouds.
Cloud I
Tokyo
Melbourne
Washington
Buenos Aires
Brasilia
Beijing
Sofia
Moscow
Prague
Exeter
Jeddah
Offenbach
Cloud II
Nairobi
Toulouse
Dakar
New Delhi
Algiers
Cairo
Details of Cloud I
• Logical connections (PVC: Permanent Virtual Circuit) through BT
Frame Relay network
• Configuration of asymmetric bandwidths by CIR (Committed
Information Rate) for unbalanced traffic conditions
• Arrangement of backup re-routing with a dynamic routing protocol
(BGP-4)
Washington
1.5Mbps
Access circuit
1.5Mbps
32k
768k
32k
Tokyo
16k
4k
256kbps
Disaster Recovery Site
32k
32k
BT Frame Relay 16k
32k
16k
Brisbane
4k 16k
32k
16k
64k
64k
256kbps
Melbourne
Exeter
256kbps
Primary PVC
BoM Backup PVC
CIR in each direction
[bps]
Unbalanced traffic and asymmetric CIRs (Cloud I)
25 Mbytes/day
55% of CIR
CIR=32kbps
CIR=768kbps
Tokyo
1.5Mbps
FR
Washington
1.5Mbps
40% of CIR
Each pays for
its local access circuit
and an incoming CIR
1076 Mbytes/day
Backup Re-routing (Cloud I)
Washington
Cloud I
Tokyo
Link failure
BGP-4
Melbourne
Traffic on
normal condition
BGP-4
Bypass traffic
for backup
Details of Cloud II
• PVCs through OBS (Orange Business Service, former EQUANT)
Frame Relay network under expansion of the European contract
• Centralized network monitoring by ECMWF & Consumer Premise
Equipment (CPE, Cisco Router) managed by OBS
• Configuration of asymmetric bandwidths by CIR
Moscow
Beijing
Tokyo
New Delhi
CPE
CPE
128
kbps
64kbps
256kbps
256kbps
16k
16k
16k 8k
48k 96k
8k
32k
Cloud II
By OBS
CPE
CPE
CPE
256kbps
64k
48k
Sofia
32k
16k 8k
CPE
512kbps
8k
Prague
8k
128k
384k
512kbps
CPE
Exeter
64k
64kbps
1024
kbps
CPE
CPE
Jeddah
Offenbach
2048
kbps
CPE
Toulouse
Collaborative contract (Cloud II)
Customer
representative
(ECMWF)
Network service
provider
(OBS)
Master
Contract
Accession
Agreement
Network
monitoring
Helpdesk
Regional network in Europe
(RMDCN in Region VI)
Accession
Agreement
Accession
Agreement
IMTN Cloud II
Accession
Agreement
Accession
Agreement
Accession
Agreement
Benefits of IMTN
The implementation of the IMTN brings various benefits:
(1) further reliability
stable operation for real-time data exchange
(2) better performance in throughput
exchange of large volume of data such as satellite data/products
(3) manageable link parameters
efficient configuration to meet traffic conditions
(4) flexibility and scalability
easy compliance with evolving requirements
(5) cost-effectiveness
saving recurrent costs
Market trends of global managed data network services
• Migration from leased circuit, ATM and Frame Relay services to
MPLS/IP-VPN (Multi Protocol Label Switching/IP-Virtual Private Network)
is remarkable.
• Layer 2 switching VPN is one of next-generation WAN services but
premature in market.
[billion US$]
140
Retail scale of global WAN services
120
Estimation
Leased circuit
ATM/Cell Relay
Frame Relay
MPLS/IP-VPN
Layer 2 VPN
100
80
60
40
20
0
2003
2004
2005
2006
2007
2008
[year]
Market share of Tier-1 global network operators
Market leaders : Equant (OBS at present), AT&T and BT/BT Infonet
Their strategies:
• Extending service coverage by establishing new MPLS PoPs
(Points of Presence)
• Bilateral partnerships with national and regional telecom carriers
for MPLS interoperability outside of their footprints
Fast-growth markets : Asia and Eastern Europe
Equant
(present: OBS)
12%
SI/IT outsourcers
37%
AT&T
12%
BT/BT Infonet
11%
Other
network
operators
15%
Global WAN service share (2nd quarter of 2005)
MCI
7%
Sprint
1%
Cable & Wireless
2%
T-Systems
2%
NTT Communications
1%
MPLS/IP-VPN
MPLS/IP-VPN is one of most promising WAN services.
IP
IP Label
VPN
group
IP Label
IP
Core Router
CE
PE
Closed
IP network
by a provider
VPN group
CE
PE
Core Router
PE
CE
CE
Core Router
Provider’s PEs and Core Routers based on MPLS have Label Tables and switch IP packets forward
according to the Tables.
CE : Customer Edge Router
PE : Provider Edge Router
VPN : Virtual Private Network
MPLS : Multi Protocol Label Switching
Future of IMTN
MPLS/IP-VPN
GTS
IMTN
WIS
core network
Frame Relay
End of
2007
Cloud I
Early
2007
MPLS/IP-VPN
Frame Relay
Cloud II
Study of possibility of
consolidation of two Clouds
Coordination
For further improvement, migration from Frame Relay to MPLS/IP-VPN is
planned. MPLS/IP-VPN service provides:
• flexibility of mesh connectivity among GISCs
• additional bandwidth.
The IMTN would function as a WIS core network
linking a small number of GISCs together.
Slide 14
IMTN and managed data network services
Hiroyuki ICHIJO (Japan Meteorological Agency
Technical Conference on the WIS (Seoul, 6-8 November 2006)
MTN configuration
The Main Telecommunication Network (MTN) interconnects 6 Regional
Meteorological Telecommunication Networks (RMTNs) as a core of the GTS.
The MTN consists of 18 MTN Centres and 25 connections.
Region VI
Region I
Region II
Region V
Region IV
Region III
Strategies to improve the GTS
• Expanding bandwidth
• Flexible connectivity
• Saving recurrent cost
Use of
cost-effective
network services
Leased circuits
• Internet like applications
• Saving implementation costs
and human resources
• allowing latitude in selecting
a network service
Improved GTS
Migration to
TCP/IP
Legacy protocols
Strengthen the overall GTS capabilities
with cost-effectiveness and technical trends
Strategies
Traditional GTS
Layer separation approach to the improved GTS
File transfer
Adding applications
Server/client
Migration to TCP/IP
Application layer
Message
Switching
TCP/IP
Legacy protocol
File transfer
Server/client
Transmission
protocol layer
Frame Relay
Use of network services
IP-VPN
Transport layer
Message
Switching
TCP/IP
Legacy protocol
Concepts of IMTN
The CBS, at its 1998 extra-ordinary session, stressed that the MTN
shall be reviewed fundamentally to meet evolving data exchange
requirements of WMO Programmes other than the WWW. The IMTN
project has been promoting the reform of the MTN capability as a
genuine network since its commencement in 1999.
Reform concepts are:
(1) to provide capability and flexibility to meet new and future
requirements by using technical innovation;
(2) to seek cost-effectiveness with appropriate reliability and security;
(3) to challenge establishment of a collaborative contractual
framework;
(4) to keep up with an appropriate pace for implementation, i.e.
“early implementation leads early benefits.”
A point of implementation strategy is the evolution
from bilateral physical circuits
to logical connections through seamless network “cloud”.
Status of the IMTN project
The current IMTN is structured with two “clouds” of Frame Relay
network services.
• 17 of 25 MTN circuits are in operation on the Clouds.
• 12 of 18 MTN centers participate in the Clouds.
Cloud I
Tokyo
Melbourne
Washington
Buenos Aires
Brasilia
Beijing
Sofia
Moscow
Prague
Exeter
Jeddah
Offenbach
Cloud II
Nairobi
Toulouse
Dakar
New Delhi
Algiers
Cairo
Details of Cloud I
• Logical connections (PVC: Permanent Virtual Circuit) through BT
Frame Relay network
• Configuration of asymmetric bandwidths by CIR (Committed
Information Rate) for unbalanced traffic conditions
• Arrangement of backup re-routing with a dynamic routing protocol
(BGP-4)
Washington
1.5Mbps
Access circuit
1.5Mbps
32k
768k
32k
Tokyo
16k
4k
256kbps
Disaster Recovery Site
32k
32k
BT Frame Relay 16k
32k
16k
Brisbane
4k 16k
32k
16k
64k
64k
256kbps
Melbourne
Exeter
256kbps
Primary PVC
BoM Backup PVC
CIR in each direction
[bps]
Unbalanced traffic and asymmetric CIRs (Cloud I)
25 Mbytes/day
55% of CIR
CIR=32kbps
CIR=768kbps
Tokyo
1.5Mbps
FR
Washington
1.5Mbps
40% of CIR
Each pays for
its local access circuit
and an incoming CIR
1076 Mbytes/day
Backup Re-routing (Cloud I)
Washington
Cloud I
Tokyo
Link failure
BGP-4
Melbourne
Traffic on
normal condition
BGP-4
Bypass traffic
for backup
Details of Cloud II
• PVCs through OBS (Orange Business Service, former EQUANT)
Frame Relay network under expansion of the European contract
• Centralized network monitoring by ECMWF & Consumer Premise
Equipment (CPE, Cisco Router) managed by OBS
• Configuration of asymmetric bandwidths by CIR
Moscow
Beijing
Tokyo
New Delhi
CPE
CPE
128
kbps
64kbps
256kbps
256kbps
16k
16k
16k 8k
48k 96k
8k
32k
Cloud II
By OBS
CPE
CPE
CPE
256kbps
64k
48k
Sofia
32k
16k 8k
CPE
512kbps
8k
Prague
8k
128k
384k
512kbps
CPE
Exeter
64k
64kbps
1024
kbps
CPE
CPE
Jeddah
Offenbach
2048
kbps
CPE
Toulouse
Collaborative contract (Cloud II)
Customer
representative
(ECMWF)
Network service
provider
(OBS)
Master
Contract
Accession
Agreement
Network
monitoring
Helpdesk
Regional network in Europe
(RMDCN in Region VI)
Accession
Agreement
Accession
Agreement
IMTN Cloud II
Accession
Agreement
Accession
Agreement
Accession
Agreement
Benefits of IMTN
The implementation of the IMTN brings various benefits:
(1) further reliability
stable operation for real-time data exchange
(2) better performance in throughput
exchange of large volume of data such as satellite data/products
(3) manageable link parameters
efficient configuration to meet traffic conditions
(4) flexibility and scalability
easy compliance with evolving requirements
(5) cost-effectiveness
saving recurrent costs
Market trends of global managed data network services
• Migration from leased circuit, ATM and Frame Relay services to
MPLS/IP-VPN (Multi Protocol Label Switching/IP-Virtual Private Network)
is remarkable.
• Layer 2 switching VPN is one of next-generation WAN services but
premature in market.
[billion US$]
140
Retail scale of global WAN services
120
Estimation
Leased circuit
ATM/Cell Relay
Frame Relay
MPLS/IP-VPN
Layer 2 VPN
100
80
60
40
20
0
2003
2004
2005
2006
2007
2008
[year]
Market share of Tier-1 global network operators
Market leaders : Equant (OBS at present), AT&T and BT/BT Infonet
Their strategies:
• Extending service coverage by establishing new MPLS PoPs
(Points of Presence)
• Bilateral partnerships with national and regional telecom carriers
for MPLS interoperability outside of their footprints
Fast-growth markets : Asia and Eastern Europe
Equant
(present: OBS)
12%
SI/IT outsourcers
37%
AT&T
12%
BT/BT Infonet
11%
Other
network
operators
15%
Global WAN service share (2nd quarter of 2005)
MCI
7%
Sprint
1%
Cable & Wireless
2%
T-Systems
2%
NTT Communications
1%
MPLS/IP-VPN
MPLS/IP-VPN is one of most promising WAN services.
IP
IP Label
VPN
group
IP Label
IP
Core Router
CE
PE
Closed
IP network
by a provider
VPN group
CE
PE
Core Router
PE
CE
CE
Core Router
Provider’s PEs and Core Routers based on MPLS have Label Tables and switch IP packets forward
according to the Tables.
CE : Customer Edge Router
PE : Provider Edge Router
VPN : Virtual Private Network
MPLS : Multi Protocol Label Switching
Future of IMTN
MPLS/IP-VPN
GTS
IMTN
WIS
core network
Frame Relay
End of
2007
Cloud I
Early
2007
MPLS/IP-VPN
Frame Relay
Cloud II
Study of possibility of
consolidation of two Clouds
Coordination
For further improvement, migration from Frame Relay to MPLS/IP-VPN is
planned. MPLS/IP-VPN service provides:
• flexibility of mesh connectivity among GISCs
• additional bandwidth.
The IMTN would function as a WIS core network
linking a small number of GISCs together.
Slide 15
IMTN and managed data network services
Hiroyuki ICHIJO (Japan Meteorological Agency
Technical Conference on the WIS (Seoul, 6-8 November 2006)
MTN configuration
The Main Telecommunication Network (MTN) interconnects 6 Regional
Meteorological Telecommunication Networks (RMTNs) as a core of the GTS.
The MTN consists of 18 MTN Centres and 25 connections.
Region VI
Region I
Region II
Region V
Region IV
Region III
Strategies to improve the GTS
• Expanding bandwidth
• Flexible connectivity
• Saving recurrent cost
Use of
cost-effective
network services
Leased circuits
• Internet like applications
• Saving implementation costs
and human resources
• allowing latitude in selecting
a network service
Improved GTS
Migration to
TCP/IP
Legacy protocols
Strengthen the overall GTS capabilities
with cost-effectiveness and technical trends
Strategies
Traditional GTS
Layer separation approach to the improved GTS
File transfer
Adding applications
Server/client
Migration to TCP/IP
Application layer
Message
Switching
TCP/IP
Legacy protocol
File transfer
Server/client
Transmission
protocol layer
Frame Relay
Use of network services
IP-VPN
Transport layer
Message
Switching
TCP/IP
Legacy protocol
Concepts of IMTN
The CBS, at its 1998 extra-ordinary session, stressed that the MTN
shall be reviewed fundamentally to meet evolving data exchange
requirements of WMO Programmes other than the WWW. The IMTN
project has been promoting the reform of the MTN capability as a
genuine network since its commencement in 1999.
Reform concepts are:
(1) to provide capability and flexibility to meet new and future
requirements by using technical innovation;
(2) to seek cost-effectiveness with appropriate reliability and security;
(3) to challenge establishment of a collaborative contractual
framework;
(4) to keep up with an appropriate pace for implementation, i.e.
“early implementation leads early benefits.”
A point of implementation strategy is the evolution
from bilateral physical circuits
to logical connections through seamless network “cloud”.
Status of the IMTN project
The current IMTN is structured with two “clouds” of Frame Relay
network services.
• 17 of 25 MTN circuits are in operation on the Clouds.
• 12 of 18 MTN centers participate in the Clouds.
Cloud I
Tokyo
Melbourne
Washington
Buenos Aires
Brasilia
Beijing
Sofia
Moscow
Prague
Exeter
Jeddah
Offenbach
Cloud II
Nairobi
Toulouse
Dakar
New Delhi
Algiers
Cairo
Details of Cloud I
• Logical connections (PVC: Permanent Virtual Circuit) through BT
Frame Relay network
• Configuration of asymmetric bandwidths by CIR (Committed
Information Rate) for unbalanced traffic conditions
• Arrangement of backup re-routing with a dynamic routing protocol
(BGP-4)
Washington
1.5Mbps
Access circuit
1.5Mbps
32k
768k
32k
Tokyo
16k
4k
256kbps
Disaster Recovery Site
32k
32k
BT Frame Relay 16k
32k
16k
Brisbane
4k 16k
32k
16k
64k
64k
256kbps
Melbourne
Exeter
256kbps
Primary PVC
BoM Backup PVC
CIR in each direction
[bps]
Unbalanced traffic and asymmetric CIRs (Cloud I)
25 Mbytes/day
55% of CIR
CIR=32kbps
CIR=768kbps
Tokyo
1.5Mbps
FR
Washington
1.5Mbps
40% of CIR
Each pays for
its local access circuit
and an incoming CIR
1076 Mbytes/day
Backup Re-routing (Cloud I)
Washington
Cloud I
Tokyo
Link failure
BGP-4
Melbourne
Traffic on
normal condition
BGP-4
Bypass traffic
for backup
Details of Cloud II
• PVCs through OBS (Orange Business Service, former EQUANT)
Frame Relay network under expansion of the European contract
• Centralized network monitoring by ECMWF & Consumer Premise
Equipment (CPE, Cisco Router) managed by OBS
• Configuration of asymmetric bandwidths by CIR
Moscow
Beijing
Tokyo
New Delhi
CPE
CPE
128
kbps
64kbps
256kbps
256kbps
16k
16k
16k 8k
48k 96k
8k
32k
Cloud II
By OBS
CPE
CPE
CPE
256kbps
64k
48k
Sofia
32k
16k 8k
CPE
512kbps
8k
Prague
8k
128k
384k
512kbps
CPE
Exeter
64k
64kbps
1024
kbps
CPE
CPE
Jeddah
Offenbach
2048
kbps
CPE
Toulouse
Collaborative contract (Cloud II)
Customer
representative
(ECMWF)
Network service
provider
(OBS)
Master
Contract
Accession
Agreement
Network
monitoring
Helpdesk
Regional network in Europe
(RMDCN in Region VI)
Accession
Agreement
Accession
Agreement
IMTN Cloud II
Accession
Agreement
Accession
Agreement
Accession
Agreement
Benefits of IMTN
The implementation of the IMTN brings various benefits:
(1) further reliability
stable operation for real-time data exchange
(2) better performance in throughput
exchange of large volume of data such as satellite data/products
(3) manageable link parameters
efficient configuration to meet traffic conditions
(4) flexibility and scalability
easy compliance with evolving requirements
(5) cost-effectiveness
saving recurrent costs
Market trends of global managed data network services
• Migration from leased circuit, ATM and Frame Relay services to
MPLS/IP-VPN (Multi Protocol Label Switching/IP-Virtual Private Network)
is remarkable.
• Layer 2 switching VPN is one of next-generation WAN services but
premature in market.
[billion US$]
140
Retail scale of global WAN services
120
Estimation
Leased circuit
ATM/Cell Relay
Frame Relay
MPLS/IP-VPN
Layer 2 VPN
100
80
60
40
20
0
2003
2004
2005
2006
2007
2008
[year]
Market share of Tier-1 global network operators
Market leaders : Equant (OBS at present), AT&T and BT/BT Infonet
Their strategies:
• Extending service coverage by establishing new MPLS PoPs
(Points of Presence)
• Bilateral partnerships with national and regional telecom carriers
for MPLS interoperability outside of their footprints
Fast-growth markets : Asia and Eastern Europe
Equant
(present: OBS)
12%
SI/IT outsourcers
37%
AT&T
12%
BT/BT Infonet
11%
Other
network
operators
15%
Global WAN service share (2nd quarter of 2005)
MCI
7%
Sprint
1%
Cable & Wireless
2%
T-Systems
2%
NTT Communications
1%
MPLS/IP-VPN
MPLS/IP-VPN is one of most promising WAN services.
IP
IP Label
VPN
group
IP Label
IP
Core Router
CE
PE
Closed
IP network
by a provider
VPN group
CE
PE
Core Router
PE
CE
CE
Core Router
Provider’s PEs and Core Routers based on MPLS have Label Tables and switch IP packets forward
according to the Tables.
CE : Customer Edge Router
PE : Provider Edge Router
VPN : Virtual Private Network
MPLS : Multi Protocol Label Switching
Future of IMTN
MPLS/IP-VPN
GTS
IMTN
WIS
core network
Frame Relay
End of
2007
Cloud I
Early
2007
MPLS/IP-VPN
Frame Relay
Cloud II
Study of possibility of
consolidation of two Clouds
Coordination
For further improvement, migration from Frame Relay to MPLS/IP-VPN is
planned. MPLS/IP-VPN service provides:
• flexibility of mesh connectivity among GISCs
• additional bandwidth.
The IMTN would function as a WIS core network
linking a small number of GISCs together.
Slide 16
IMTN and managed data network services
Hiroyuki ICHIJO (Japan Meteorological Agency
Technical Conference on the WIS (Seoul, 6-8 November 2006)
MTN configuration
The Main Telecommunication Network (MTN) interconnects 6 Regional
Meteorological Telecommunication Networks (RMTNs) as a core of the GTS.
The MTN consists of 18 MTN Centres and 25 connections.
Region VI
Region I
Region II
Region V
Region IV
Region III
Strategies to improve the GTS
• Expanding bandwidth
• Flexible connectivity
• Saving recurrent cost
Use of
cost-effective
network services
Leased circuits
• Internet like applications
• Saving implementation costs
and human resources
• allowing latitude in selecting
a network service
Improved GTS
Migration to
TCP/IP
Legacy protocols
Strengthen the overall GTS capabilities
with cost-effectiveness and technical trends
Strategies
Traditional GTS
Layer separation approach to the improved GTS
File transfer
Adding applications
Server/client
Migration to TCP/IP
Application layer
Message
Switching
TCP/IP
Legacy protocol
File transfer
Server/client
Transmission
protocol layer
Frame Relay
Use of network services
IP-VPN
Transport layer
Message
Switching
TCP/IP
Legacy protocol
Concepts of IMTN
The CBS, at its 1998 extra-ordinary session, stressed that the MTN
shall be reviewed fundamentally to meet evolving data exchange
requirements of WMO Programmes other than the WWW. The IMTN
project has been promoting the reform of the MTN capability as a
genuine network since its commencement in 1999.
Reform concepts are:
(1) to provide capability and flexibility to meet new and future
requirements by using technical innovation;
(2) to seek cost-effectiveness with appropriate reliability and security;
(3) to challenge establishment of a collaborative contractual
framework;
(4) to keep up with an appropriate pace for implementation, i.e.
“early implementation leads early benefits.”
A point of implementation strategy is the evolution
from bilateral physical circuits
to logical connections through seamless network “cloud”.
Status of the IMTN project
The current IMTN is structured with two “clouds” of Frame Relay
network services.
• 17 of 25 MTN circuits are in operation on the Clouds.
• 12 of 18 MTN centers participate in the Clouds.
Cloud I
Tokyo
Melbourne
Washington
Buenos Aires
Brasilia
Beijing
Sofia
Moscow
Prague
Exeter
Jeddah
Offenbach
Cloud II
Nairobi
Toulouse
Dakar
New Delhi
Algiers
Cairo
Details of Cloud I
• Logical connections (PVC: Permanent Virtual Circuit) through BT
Frame Relay network
• Configuration of asymmetric bandwidths by CIR (Committed
Information Rate) for unbalanced traffic conditions
• Arrangement of backup re-routing with a dynamic routing protocol
(BGP-4)
Washington
1.5Mbps
Access circuit
1.5Mbps
32k
768k
32k
Tokyo
16k
4k
256kbps
Disaster Recovery Site
32k
32k
BT Frame Relay 16k
32k
16k
Brisbane
4k 16k
32k
16k
64k
64k
256kbps
Melbourne
Exeter
256kbps
Primary PVC
BoM Backup PVC
CIR in each direction
[bps]
Unbalanced traffic and asymmetric CIRs (Cloud I)
25 Mbytes/day
55% of CIR
CIR=32kbps
CIR=768kbps
Tokyo
1.5Mbps
FR
Washington
1.5Mbps
40% of CIR
Each pays for
its local access circuit
and an incoming CIR
1076 Mbytes/day
Backup Re-routing (Cloud I)
Washington
Cloud I
Tokyo
Link failure
BGP-4
Melbourne
Traffic on
normal condition
BGP-4
Bypass traffic
for backup
Details of Cloud II
• PVCs through OBS (Orange Business Service, former EQUANT)
Frame Relay network under expansion of the European contract
• Centralized network monitoring by ECMWF & Consumer Premise
Equipment (CPE, Cisco Router) managed by OBS
• Configuration of asymmetric bandwidths by CIR
Moscow
Beijing
Tokyo
New Delhi
CPE
CPE
128
kbps
64kbps
256kbps
256kbps
16k
16k
16k 8k
48k 96k
8k
32k
Cloud II
By OBS
CPE
CPE
CPE
256kbps
64k
48k
Sofia
32k
16k 8k
CPE
512kbps
8k
Prague
8k
128k
384k
512kbps
CPE
Exeter
64k
64kbps
1024
kbps
CPE
CPE
Jeddah
Offenbach
2048
kbps
CPE
Toulouse
Collaborative contract (Cloud II)
Customer
representative
(ECMWF)
Network service
provider
(OBS)
Master
Contract
Accession
Agreement
Network
monitoring
Helpdesk
Regional network in Europe
(RMDCN in Region VI)
Accession
Agreement
Accession
Agreement
IMTN Cloud II
Accession
Agreement
Accession
Agreement
Accession
Agreement
Benefits of IMTN
The implementation of the IMTN brings various benefits:
(1) further reliability
stable operation for real-time data exchange
(2) better performance in throughput
exchange of large volume of data such as satellite data/products
(3) manageable link parameters
efficient configuration to meet traffic conditions
(4) flexibility and scalability
easy compliance with evolving requirements
(5) cost-effectiveness
saving recurrent costs
Market trends of global managed data network services
• Migration from leased circuit, ATM and Frame Relay services to
MPLS/IP-VPN (Multi Protocol Label Switching/IP-Virtual Private Network)
is remarkable.
• Layer 2 switching VPN is one of next-generation WAN services but
premature in market.
[billion US$]
140
Retail scale of global WAN services
120
Estimation
Leased circuit
ATM/Cell Relay
Frame Relay
MPLS/IP-VPN
Layer 2 VPN
100
80
60
40
20
0
2003
2004
2005
2006
2007
2008
[year]
Market share of Tier-1 global network operators
Market leaders : Equant (OBS at present), AT&T and BT/BT Infonet
Their strategies:
• Extending service coverage by establishing new MPLS PoPs
(Points of Presence)
• Bilateral partnerships with national and regional telecom carriers
for MPLS interoperability outside of their footprints
Fast-growth markets : Asia and Eastern Europe
Equant
(present: OBS)
12%
SI/IT outsourcers
37%
AT&T
12%
BT/BT Infonet
11%
Other
network
operators
15%
Global WAN service share (2nd quarter of 2005)
MCI
7%
Sprint
1%
Cable & Wireless
2%
T-Systems
2%
NTT Communications
1%
MPLS/IP-VPN
MPLS/IP-VPN is one of most promising WAN services.
IP
IP Label
VPN
group
IP Label
IP
Core Router
CE
PE
Closed
IP network
by a provider
VPN group
CE
PE
Core Router
PE
CE
CE
Core Router
Provider’s PEs and Core Routers based on MPLS have Label Tables and switch IP packets forward
according to the Tables.
CE : Customer Edge Router
PE : Provider Edge Router
VPN : Virtual Private Network
MPLS : Multi Protocol Label Switching
Future of IMTN
MPLS/IP-VPN
GTS
IMTN
WIS
core network
Frame Relay
End of
2007
Cloud I
Early
2007
MPLS/IP-VPN
Frame Relay
Cloud II
Study of possibility of
consolidation of two Clouds
Coordination
For further improvement, migration from Frame Relay to MPLS/IP-VPN is
planned. MPLS/IP-VPN service provides:
• flexibility of mesh connectivity among GISCs
• additional bandwidth.
The IMTN would function as a WIS core network
linking a small number of GISCs together.
IMTN and managed data network services
Hiroyuki ICHIJO (Japan Meteorological Agency
Technical Conference on the WIS (Seoul, 6-8 November 2006)
MTN configuration
The Main Telecommunication Network (MTN) interconnects 6 Regional
Meteorological Telecommunication Networks (RMTNs) as a core of the GTS.
The MTN consists of 18 MTN Centres and 25 connections.
Region VI
Region I
Region II
Region V
Region IV
Region III
Strategies to improve the GTS
• Expanding bandwidth
• Flexible connectivity
• Saving recurrent cost
Use of
cost-effective
network services
Leased circuits
• Internet like applications
• Saving implementation costs
and human resources
• allowing latitude in selecting
a network service
Improved GTS
Migration to
TCP/IP
Legacy protocols
Strengthen the overall GTS capabilities
with cost-effectiveness and technical trends
Strategies
Traditional GTS
Layer separation approach to the improved GTS
File transfer
Adding applications
Server/client
Migration to TCP/IP
Application layer
Message
Switching
TCP/IP
Legacy protocol
File transfer
Server/client
Transmission
protocol layer
Frame Relay
Use of network services
IP-VPN
Transport layer
Message
Switching
TCP/IP
Legacy protocol
Concepts of IMTN
The CBS, at its 1998 extra-ordinary session, stressed that the MTN
shall be reviewed fundamentally to meet evolving data exchange
requirements of WMO Programmes other than the WWW. The IMTN
project has been promoting the reform of the MTN capability as a
genuine network since its commencement in 1999.
Reform concepts are:
(1) to provide capability and flexibility to meet new and future
requirements by using technical innovation;
(2) to seek cost-effectiveness with appropriate reliability and security;
(3) to challenge establishment of a collaborative contractual
framework;
(4) to keep up with an appropriate pace for implementation, i.e.
“early implementation leads early benefits.”
A point of implementation strategy is the evolution
from bilateral physical circuits
to logical connections through seamless network “cloud”.
Status of the IMTN project
The current IMTN is structured with two “clouds” of Frame Relay
network services.
• 17 of 25 MTN circuits are in operation on the Clouds.
• 12 of 18 MTN centers participate in the Clouds.
Cloud I
Tokyo
Melbourne
Washington
Buenos Aires
Brasilia
Beijing
Sofia
Moscow
Prague
Exeter
Jeddah
Offenbach
Cloud II
Nairobi
Toulouse
Dakar
New Delhi
Algiers
Cairo
Details of Cloud I
• Logical connections (PVC: Permanent Virtual Circuit) through BT
Frame Relay network
• Configuration of asymmetric bandwidths by CIR (Committed
Information Rate) for unbalanced traffic conditions
• Arrangement of backup re-routing with a dynamic routing protocol
(BGP-4)
Washington
1.5Mbps
Access circuit
1.5Mbps
32k
768k
32k
Tokyo
16k
4k
256kbps
Disaster Recovery Site
32k
32k
BT Frame Relay 16k
32k
16k
Brisbane
4k 16k
32k
16k
64k
64k
256kbps
Melbourne
Exeter
256kbps
Primary PVC
BoM Backup PVC
CIR in each direction
[bps]
Unbalanced traffic and asymmetric CIRs (Cloud I)
25 Mbytes/day
55% of CIR
CIR=32kbps
CIR=768kbps
Tokyo
1.5Mbps
FR
Washington
1.5Mbps
40% of CIR
Each pays for
its local access circuit
and an incoming CIR
1076 Mbytes/day
Backup Re-routing (Cloud I)
Washington
Cloud I
Tokyo
Link failure
BGP-4
Melbourne
Traffic on
normal condition
BGP-4
Bypass traffic
for backup
Details of Cloud II
• PVCs through OBS (Orange Business Service, former EQUANT)
Frame Relay network under expansion of the European contract
• Centralized network monitoring by ECMWF & Consumer Premise
Equipment (CPE, Cisco Router) managed by OBS
• Configuration of asymmetric bandwidths by CIR
Moscow
Beijing
Tokyo
New Delhi
CPE
CPE
128
kbps
64kbps
256kbps
256kbps
16k
16k
16k 8k
48k 96k
8k
32k
Cloud II
By OBS
CPE
CPE
CPE
256kbps
64k
48k
Sofia
32k
16k 8k
CPE
512kbps
8k
Prague
8k
128k
384k
512kbps
CPE
Exeter
64k
64kbps
1024
kbps
CPE
CPE
Jeddah
Offenbach
2048
kbps
CPE
Toulouse
Collaborative contract (Cloud II)
Customer
representative
(ECMWF)
Network service
provider
(OBS)
Master
Contract
Accession
Agreement
Network
monitoring
Helpdesk
Regional network in Europe
(RMDCN in Region VI)
Accession
Agreement
Accession
Agreement
IMTN Cloud II
Accession
Agreement
Accession
Agreement
Accession
Agreement
Benefits of IMTN
The implementation of the IMTN brings various benefits:
(1) further reliability
stable operation for real-time data exchange
(2) better performance in throughput
exchange of large volume of data such as satellite data/products
(3) manageable link parameters
efficient configuration to meet traffic conditions
(4) flexibility and scalability
easy compliance with evolving requirements
(5) cost-effectiveness
saving recurrent costs
Market trends of global managed data network services
• Migration from leased circuit, ATM and Frame Relay services to
MPLS/IP-VPN (Multi Protocol Label Switching/IP-Virtual Private Network)
is remarkable.
• Layer 2 switching VPN is one of next-generation WAN services but
premature in market.
[billion US$]
140
Retail scale of global WAN services
120
Estimation
Leased circuit
ATM/Cell Relay
Frame Relay
MPLS/IP-VPN
Layer 2 VPN
100
80
60
40
20
0
2003
2004
2005
2006
2007
2008
[year]
Market share of Tier-1 global network operators
Market leaders : Equant (OBS at present), AT&T and BT/BT Infonet
Their strategies:
• Extending service coverage by establishing new MPLS PoPs
(Points of Presence)
• Bilateral partnerships with national and regional telecom carriers
for MPLS interoperability outside of their footprints
Fast-growth markets : Asia and Eastern Europe
Equant
(present: OBS)
12%
SI/IT outsourcers
37%
AT&T
12%
BT/BT Infonet
11%
Other
network
operators
15%
Global WAN service share (2nd quarter of 2005)
MCI
7%
Sprint
1%
Cable & Wireless
2%
T-Systems
2%
NTT Communications
1%
MPLS/IP-VPN
MPLS/IP-VPN is one of most promising WAN services.
IP
IP Label
VPN
group
IP Label
IP
Core Router
CE
PE
Closed
IP network
by a provider
VPN group
CE
PE
Core Router
PE
CE
CE
Core Router
Provider’s PEs and Core Routers based on MPLS have Label Tables and switch IP packets forward
according to the Tables.
CE : Customer Edge Router
PE : Provider Edge Router
VPN : Virtual Private Network
MPLS : Multi Protocol Label Switching
Future of IMTN
MPLS/IP-VPN
GTS
IMTN
WIS
core network
Frame Relay
End of
2007
Cloud I
Early
2007
MPLS/IP-VPN
Frame Relay
Cloud II
Study of possibility of
consolidation of two Clouds
Coordination
For further improvement, migration from Frame Relay to MPLS/IP-VPN is
planned. MPLS/IP-VPN service provides:
• flexibility of mesh connectivity among GISCs
• additional bandwidth.
The IMTN would function as a WIS core network
linking a small number of GISCs together.
Slide 2
IMTN and managed data network services
Hiroyuki ICHIJO (Japan Meteorological Agency
Technical Conference on the WIS (Seoul, 6-8 November 2006)
MTN configuration
The Main Telecommunication Network (MTN) interconnects 6 Regional
Meteorological Telecommunication Networks (RMTNs) as a core of the GTS.
The MTN consists of 18 MTN Centres and 25 connections.
Region VI
Region I
Region II
Region V
Region IV
Region III
Strategies to improve the GTS
• Expanding bandwidth
• Flexible connectivity
• Saving recurrent cost
Use of
cost-effective
network services
Leased circuits
• Internet like applications
• Saving implementation costs
and human resources
• allowing latitude in selecting
a network service
Improved GTS
Migration to
TCP/IP
Legacy protocols
Strengthen the overall GTS capabilities
with cost-effectiveness and technical trends
Strategies
Traditional GTS
Layer separation approach to the improved GTS
File transfer
Adding applications
Server/client
Migration to TCP/IP
Application layer
Message
Switching
TCP/IP
Legacy protocol
File transfer
Server/client
Transmission
protocol layer
Frame Relay
Use of network services
IP-VPN
Transport layer
Message
Switching
TCP/IP
Legacy protocol
Concepts of IMTN
The CBS, at its 1998 extra-ordinary session, stressed that the MTN
shall be reviewed fundamentally to meet evolving data exchange
requirements of WMO Programmes other than the WWW. The IMTN
project has been promoting the reform of the MTN capability as a
genuine network since its commencement in 1999.
Reform concepts are:
(1) to provide capability and flexibility to meet new and future
requirements by using technical innovation;
(2) to seek cost-effectiveness with appropriate reliability and security;
(3) to challenge establishment of a collaborative contractual
framework;
(4) to keep up with an appropriate pace for implementation, i.e.
“early implementation leads early benefits.”
A point of implementation strategy is the evolution
from bilateral physical circuits
to logical connections through seamless network “cloud”.
Status of the IMTN project
The current IMTN is structured with two “clouds” of Frame Relay
network services.
• 17 of 25 MTN circuits are in operation on the Clouds.
• 12 of 18 MTN centers participate in the Clouds.
Cloud I
Tokyo
Melbourne
Washington
Buenos Aires
Brasilia
Beijing
Sofia
Moscow
Prague
Exeter
Jeddah
Offenbach
Cloud II
Nairobi
Toulouse
Dakar
New Delhi
Algiers
Cairo
Details of Cloud I
• Logical connections (PVC: Permanent Virtual Circuit) through BT
Frame Relay network
• Configuration of asymmetric bandwidths by CIR (Committed
Information Rate) for unbalanced traffic conditions
• Arrangement of backup re-routing with a dynamic routing protocol
(BGP-4)
Washington
1.5Mbps
Access circuit
1.5Mbps
32k
768k
32k
Tokyo
16k
4k
256kbps
Disaster Recovery Site
32k
32k
BT Frame Relay 16k
32k
16k
Brisbane
4k 16k
32k
16k
64k
64k
256kbps
Melbourne
Exeter
256kbps
Primary PVC
BoM Backup PVC
CIR in each direction
[bps]
Unbalanced traffic and asymmetric CIRs (Cloud I)
25 Mbytes/day
55% of CIR
CIR=32kbps
CIR=768kbps
Tokyo
1.5Mbps
FR
Washington
1.5Mbps
40% of CIR
Each pays for
its local access circuit
and an incoming CIR
1076 Mbytes/day
Backup Re-routing (Cloud I)
Washington
Cloud I
Tokyo
Link failure
BGP-4
Melbourne
Traffic on
normal condition
BGP-4
Bypass traffic
for backup
Details of Cloud II
• PVCs through OBS (Orange Business Service, former EQUANT)
Frame Relay network under expansion of the European contract
• Centralized network monitoring by ECMWF & Consumer Premise
Equipment (CPE, Cisco Router) managed by OBS
• Configuration of asymmetric bandwidths by CIR
Moscow
Beijing
Tokyo
New Delhi
CPE
CPE
128
kbps
64kbps
256kbps
256kbps
16k
16k
16k 8k
48k 96k
8k
32k
Cloud II
By OBS
CPE
CPE
CPE
256kbps
64k
48k
Sofia
32k
16k 8k
CPE
512kbps
8k
Prague
8k
128k
384k
512kbps
CPE
Exeter
64k
64kbps
1024
kbps
CPE
CPE
Jeddah
Offenbach
2048
kbps
CPE
Toulouse
Collaborative contract (Cloud II)
Customer
representative
(ECMWF)
Network service
provider
(OBS)
Master
Contract
Accession
Agreement
Network
monitoring
Helpdesk
Regional network in Europe
(RMDCN in Region VI)
Accession
Agreement
Accession
Agreement
IMTN Cloud II
Accession
Agreement
Accession
Agreement
Accession
Agreement
Benefits of IMTN
The implementation of the IMTN brings various benefits:
(1) further reliability
stable operation for real-time data exchange
(2) better performance in throughput
exchange of large volume of data such as satellite data/products
(3) manageable link parameters
efficient configuration to meet traffic conditions
(4) flexibility and scalability
easy compliance with evolving requirements
(5) cost-effectiveness
saving recurrent costs
Market trends of global managed data network services
• Migration from leased circuit, ATM and Frame Relay services to
MPLS/IP-VPN (Multi Protocol Label Switching/IP-Virtual Private Network)
is remarkable.
• Layer 2 switching VPN is one of next-generation WAN services but
premature in market.
[billion US$]
140
Retail scale of global WAN services
120
Estimation
Leased circuit
ATM/Cell Relay
Frame Relay
MPLS/IP-VPN
Layer 2 VPN
100
80
60
40
20
0
2003
2004
2005
2006
2007
2008
[year]
Market share of Tier-1 global network operators
Market leaders : Equant (OBS at present), AT&T and BT/BT Infonet
Their strategies:
• Extending service coverage by establishing new MPLS PoPs
(Points of Presence)
• Bilateral partnerships with national and regional telecom carriers
for MPLS interoperability outside of their footprints
Fast-growth markets : Asia and Eastern Europe
Equant
(present: OBS)
12%
SI/IT outsourcers
37%
AT&T
12%
BT/BT Infonet
11%
Other
network
operators
15%
Global WAN service share (2nd quarter of 2005)
MCI
7%
Sprint
1%
Cable & Wireless
2%
T-Systems
2%
NTT Communications
1%
MPLS/IP-VPN
MPLS/IP-VPN is one of most promising WAN services.
IP
IP Label
VPN
group
IP Label
IP
Core Router
CE
PE
Closed
IP network
by a provider
VPN group
CE
PE
Core Router
PE
CE
CE
Core Router
Provider’s PEs and Core Routers based on MPLS have Label Tables and switch IP packets forward
according to the Tables.
CE : Customer Edge Router
PE : Provider Edge Router
VPN : Virtual Private Network
MPLS : Multi Protocol Label Switching
Future of IMTN
MPLS/IP-VPN
GTS
IMTN
WIS
core network
Frame Relay
End of
2007
Cloud I
Early
2007
MPLS/IP-VPN
Frame Relay
Cloud II
Study of possibility of
consolidation of two Clouds
Coordination
For further improvement, migration from Frame Relay to MPLS/IP-VPN is
planned. MPLS/IP-VPN service provides:
• flexibility of mesh connectivity among GISCs
• additional bandwidth.
The IMTN would function as a WIS core network
linking a small number of GISCs together.
Slide 3
IMTN and managed data network services
Hiroyuki ICHIJO (Japan Meteorological Agency
Technical Conference on the WIS (Seoul, 6-8 November 2006)
MTN configuration
The Main Telecommunication Network (MTN) interconnects 6 Regional
Meteorological Telecommunication Networks (RMTNs) as a core of the GTS.
The MTN consists of 18 MTN Centres and 25 connections.
Region VI
Region I
Region II
Region V
Region IV
Region III
Strategies to improve the GTS
• Expanding bandwidth
• Flexible connectivity
• Saving recurrent cost
Use of
cost-effective
network services
Leased circuits
• Internet like applications
• Saving implementation costs
and human resources
• allowing latitude in selecting
a network service
Improved GTS
Migration to
TCP/IP
Legacy protocols
Strengthen the overall GTS capabilities
with cost-effectiveness and technical trends
Strategies
Traditional GTS
Layer separation approach to the improved GTS
File transfer
Adding applications
Server/client
Migration to TCP/IP
Application layer
Message
Switching
TCP/IP
Legacy protocol
File transfer
Server/client
Transmission
protocol layer
Frame Relay
Use of network services
IP-VPN
Transport layer
Message
Switching
TCP/IP
Legacy protocol
Concepts of IMTN
The CBS, at its 1998 extra-ordinary session, stressed that the MTN
shall be reviewed fundamentally to meet evolving data exchange
requirements of WMO Programmes other than the WWW. The IMTN
project has been promoting the reform of the MTN capability as a
genuine network since its commencement in 1999.
Reform concepts are:
(1) to provide capability and flexibility to meet new and future
requirements by using technical innovation;
(2) to seek cost-effectiveness with appropriate reliability and security;
(3) to challenge establishment of a collaborative contractual
framework;
(4) to keep up with an appropriate pace for implementation, i.e.
“early implementation leads early benefits.”
A point of implementation strategy is the evolution
from bilateral physical circuits
to logical connections through seamless network “cloud”.
Status of the IMTN project
The current IMTN is structured with two “clouds” of Frame Relay
network services.
• 17 of 25 MTN circuits are in operation on the Clouds.
• 12 of 18 MTN centers participate in the Clouds.
Cloud I
Tokyo
Melbourne
Washington
Buenos Aires
Brasilia
Beijing
Sofia
Moscow
Prague
Exeter
Jeddah
Offenbach
Cloud II
Nairobi
Toulouse
Dakar
New Delhi
Algiers
Cairo
Details of Cloud I
• Logical connections (PVC: Permanent Virtual Circuit) through BT
Frame Relay network
• Configuration of asymmetric bandwidths by CIR (Committed
Information Rate) for unbalanced traffic conditions
• Arrangement of backup re-routing with a dynamic routing protocol
(BGP-4)
Washington
1.5Mbps
Access circuit
1.5Mbps
32k
768k
32k
Tokyo
16k
4k
256kbps
Disaster Recovery Site
32k
32k
BT Frame Relay 16k
32k
16k
Brisbane
4k 16k
32k
16k
64k
64k
256kbps
Melbourne
Exeter
256kbps
Primary PVC
BoM Backup PVC
CIR in each direction
[bps]
Unbalanced traffic and asymmetric CIRs (Cloud I)
25 Mbytes/day
55% of CIR
CIR=32kbps
CIR=768kbps
Tokyo
1.5Mbps
FR
Washington
1.5Mbps
40% of CIR
Each pays for
its local access circuit
and an incoming CIR
1076 Mbytes/day
Backup Re-routing (Cloud I)
Washington
Cloud I
Tokyo
Link failure
BGP-4
Melbourne
Traffic on
normal condition
BGP-4
Bypass traffic
for backup
Details of Cloud II
• PVCs through OBS (Orange Business Service, former EQUANT)
Frame Relay network under expansion of the European contract
• Centralized network monitoring by ECMWF & Consumer Premise
Equipment (CPE, Cisco Router) managed by OBS
• Configuration of asymmetric bandwidths by CIR
Moscow
Beijing
Tokyo
New Delhi
CPE
CPE
128
kbps
64kbps
256kbps
256kbps
16k
16k
16k 8k
48k 96k
8k
32k
Cloud II
By OBS
CPE
CPE
CPE
256kbps
64k
48k
Sofia
32k
16k 8k
CPE
512kbps
8k
Prague
8k
128k
384k
512kbps
CPE
Exeter
64k
64kbps
1024
kbps
CPE
CPE
Jeddah
Offenbach
2048
kbps
CPE
Toulouse
Collaborative contract (Cloud II)
Customer
representative
(ECMWF)
Network service
provider
(OBS)
Master
Contract
Accession
Agreement
Network
monitoring
Helpdesk
Regional network in Europe
(RMDCN in Region VI)
Accession
Agreement
Accession
Agreement
IMTN Cloud II
Accession
Agreement
Accession
Agreement
Accession
Agreement
Benefits of IMTN
The implementation of the IMTN brings various benefits:
(1) further reliability
stable operation for real-time data exchange
(2) better performance in throughput
exchange of large volume of data such as satellite data/products
(3) manageable link parameters
efficient configuration to meet traffic conditions
(4) flexibility and scalability
easy compliance with evolving requirements
(5) cost-effectiveness
saving recurrent costs
Market trends of global managed data network services
• Migration from leased circuit, ATM and Frame Relay services to
MPLS/IP-VPN (Multi Protocol Label Switching/IP-Virtual Private Network)
is remarkable.
• Layer 2 switching VPN is one of next-generation WAN services but
premature in market.
[billion US$]
140
Retail scale of global WAN services
120
Estimation
Leased circuit
ATM/Cell Relay
Frame Relay
MPLS/IP-VPN
Layer 2 VPN
100
80
60
40
20
0
2003
2004
2005
2006
2007
2008
[year]
Market share of Tier-1 global network operators
Market leaders : Equant (OBS at present), AT&T and BT/BT Infonet
Their strategies:
• Extending service coverage by establishing new MPLS PoPs
(Points of Presence)
• Bilateral partnerships with national and regional telecom carriers
for MPLS interoperability outside of their footprints
Fast-growth markets : Asia and Eastern Europe
Equant
(present: OBS)
12%
SI/IT outsourcers
37%
AT&T
12%
BT/BT Infonet
11%
Other
network
operators
15%
Global WAN service share (2nd quarter of 2005)
MCI
7%
Sprint
1%
Cable & Wireless
2%
T-Systems
2%
NTT Communications
1%
MPLS/IP-VPN
MPLS/IP-VPN is one of most promising WAN services.
IP
IP Label
VPN
group
IP Label
IP
Core Router
CE
PE
Closed
IP network
by a provider
VPN group
CE
PE
Core Router
PE
CE
CE
Core Router
Provider’s PEs and Core Routers based on MPLS have Label Tables and switch IP packets forward
according to the Tables.
CE : Customer Edge Router
PE : Provider Edge Router
VPN : Virtual Private Network
MPLS : Multi Protocol Label Switching
Future of IMTN
MPLS/IP-VPN
GTS
IMTN
WIS
core network
Frame Relay
End of
2007
Cloud I
Early
2007
MPLS/IP-VPN
Frame Relay
Cloud II
Study of possibility of
consolidation of two Clouds
Coordination
For further improvement, migration from Frame Relay to MPLS/IP-VPN is
planned. MPLS/IP-VPN service provides:
• flexibility of mesh connectivity among GISCs
• additional bandwidth.
The IMTN would function as a WIS core network
linking a small number of GISCs together.
Slide 4
IMTN and managed data network services
Hiroyuki ICHIJO (Japan Meteorological Agency
Technical Conference on the WIS (Seoul, 6-8 November 2006)
MTN configuration
The Main Telecommunication Network (MTN) interconnects 6 Regional
Meteorological Telecommunication Networks (RMTNs) as a core of the GTS.
The MTN consists of 18 MTN Centres and 25 connections.
Region VI
Region I
Region II
Region V
Region IV
Region III
Strategies to improve the GTS
• Expanding bandwidth
• Flexible connectivity
• Saving recurrent cost
Use of
cost-effective
network services
Leased circuits
• Internet like applications
• Saving implementation costs
and human resources
• allowing latitude in selecting
a network service
Improved GTS
Migration to
TCP/IP
Legacy protocols
Strengthen the overall GTS capabilities
with cost-effectiveness and technical trends
Strategies
Traditional GTS
Layer separation approach to the improved GTS
File transfer
Adding applications
Server/client
Migration to TCP/IP
Application layer
Message
Switching
TCP/IP
Legacy protocol
File transfer
Server/client
Transmission
protocol layer
Frame Relay
Use of network services
IP-VPN
Transport layer
Message
Switching
TCP/IP
Legacy protocol
Concepts of IMTN
The CBS, at its 1998 extra-ordinary session, stressed that the MTN
shall be reviewed fundamentally to meet evolving data exchange
requirements of WMO Programmes other than the WWW. The IMTN
project has been promoting the reform of the MTN capability as a
genuine network since its commencement in 1999.
Reform concepts are:
(1) to provide capability and flexibility to meet new and future
requirements by using technical innovation;
(2) to seek cost-effectiveness with appropriate reliability and security;
(3) to challenge establishment of a collaborative contractual
framework;
(4) to keep up with an appropriate pace for implementation, i.e.
“early implementation leads early benefits.”
A point of implementation strategy is the evolution
from bilateral physical circuits
to logical connections through seamless network “cloud”.
Status of the IMTN project
The current IMTN is structured with two “clouds” of Frame Relay
network services.
• 17 of 25 MTN circuits are in operation on the Clouds.
• 12 of 18 MTN centers participate in the Clouds.
Cloud I
Tokyo
Melbourne
Washington
Buenos Aires
Brasilia
Beijing
Sofia
Moscow
Prague
Exeter
Jeddah
Offenbach
Cloud II
Nairobi
Toulouse
Dakar
New Delhi
Algiers
Cairo
Details of Cloud I
• Logical connections (PVC: Permanent Virtual Circuit) through BT
Frame Relay network
• Configuration of asymmetric bandwidths by CIR (Committed
Information Rate) for unbalanced traffic conditions
• Arrangement of backup re-routing with a dynamic routing protocol
(BGP-4)
Washington
1.5Mbps
Access circuit
1.5Mbps
32k
768k
32k
Tokyo
16k
4k
256kbps
Disaster Recovery Site
32k
32k
BT Frame Relay 16k
32k
16k
Brisbane
4k 16k
32k
16k
64k
64k
256kbps
Melbourne
Exeter
256kbps
Primary PVC
BoM Backup PVC
CIR in each direction
[bps]
Unbalanced traffic and asymmetric CIRs (Cloud I)
25 Mbytes/day
55% of CIR
CIR=32kbps
CIR=768kbps
Tokyo
1.5Mbps
FR
Washington
1.5Mbps
40% of CIR
Each pays for
its local access circuit
and an incoming CIR
1076 Mbytes/day
Backup Re-routing (Cloud I)
Washington
Cloud I
Tokyo
Link failure
BGP-4
Melbourne
Traffic on
normal condition
BGP-4
Bypass traffic
for backup
Details of Cloud II
• PVCs through OBS (Orange Business Service, former EQUANT)
Frame Relay network under expansion of the European contract
• Centralized network monitoring by ECMWF & Consumer Premise
Equipment (CPE, Cisco Router) managed by OBS
• Configuration of asymmetric bandwidths by CIR
Moscow
Beijing
Tokyo
New Delhi
CPE
CPE
128
kbps
64kbps
256kbps
256kbps
16k
16k
16k 8k
48k 96k
8k
32k
Cloud II
By OBS
CPE
CPE
CPE
256kbps
64k
48k
Sofia
32k
16k 8k
CPE
512kbps
8k
Prague
8k
128k
384k
512kbps
CPE
Exeter
64k
64kbps
1024
kbps
CPE
CPE
Jeddah
Offenbach
2048
kbps
CPE
Toulouse
Collaborative contract (Cloud II)
Customer
representative
(ECMWF)
Network service
provider
(OBS)
Master
Contract
Accession
Agreement
Network
monitoring
Helpdesk
Regional network in Europe
(RMDCN in Region VI)
Accession
Agreement
Accession
Agreement
IMTN Cloud II
Accession
Agreement
Accession
Agreement
Accession
Agreement
Benefits of IMTN
The implementation of the IMTN brings various benefits:
(1) further reliability
stable operation for real-time data exchange
(2) better performance in throughput
exchange of large volume of data such as satellite data/products
(3) manageable link parameters
efficient configuration to meet traffic conditions
(4) flexibility and scalability
easy compliance with evolving requirements
(5) cost-effectiveness
saving recurrent costs
Market trends of global managed data network services
• Migration from leased circuit, ATM and Frame Relay services to
MPLS/IP-VPN (Multi Protocol Label Switching/IP-Virtual Private Network)
is remarkable.
• Layer 2 switching VPN is one of next-generation WAN services but
premature in market.
[billion US$]
140
Retail scale of global WAN services
120
Estimation
Leased circuit
ATM/Cell Relay
Frame Relay
MPLS/IP-VPN
Layer 2 VPN
100
80
60
40
20
0
2003
2004
2005
2006
2007
2008
[year]
Market share of Tier-1 global network operators
Market leaders : Equant (OBS at present), AT&T and BT/BT Infonet
Their strategies:
• Extending service coverage by establishing new MPLS PoPs
(Points of Presence)
• Bilateral partnerships with national and regional telecom carriers
for MPLS interoperability outside of their footprints
Fast-growth markets : Asia and Eastern Europe
Equant
(present: OBS)
12%
SI/IT outsourcers
37%
AT&T
12%
BT/BT Infonet
11%
Other
network
operators
15%
Global WAN service share (2nd quarter of 2005)
MCI
7%
Sprint
1%
Cable & Wireless
2%
T-Systems
2%
NTT Communications
1%
MPLS/IP-VPN
MPLS/IP-VPN is one of most promising WAN services.
IP
IP Label
VPN
group
IP Label
IP
Core Router
CE
PE
Closed
IP network
by a provider
VPN group
CE
PE
Core Router
PE
CE
CE
Core Router
Provider’s PEs and Core Routers based on MPLS have Label Tables and switch IP packets forward
according to the Tables.
CE : Customer Edge Router
PE : Provider Edge Router
VPN : Virtual Private Network
MPLS : Multi Protocol Label Switching
Future of IMTN
MPLS/IP-VPN
GTS
IMTN
WIS
core network
Frame Relay
End of
2007
Cloud I
Early
2007
MPLS/IP-VPN
Frame Relay
Cloud II
Study of possibility of
consolidation of two Clouds
Coordination
For further improvement, migration from Frame Relay to MPLS/IP-VPN is
planned. MPLS/IP-VPN service provides:
• flexibility of mesh connectivity among GISCs
• additional bandwidth.
The IMTN would function as a WIS core network
linking a small number of GISCs together.
Slide 5
IMTN and managed data network services
Hiroyuki ICHIJO (Japan Meteorological Agency
Technical Conference on the WIS (Seoul, 6-8 November 2006)
MTN configuration
The Main Telecommunication Network (MTN) interconnects 6 Regional
Meteorological Telecommunication Networks (RMTNs) as a core of the GTS.
The MTN consists of 18 MTN Centres and 25 connections.
Region VI
Region I
Region II
Region V
Region IV
Region III
Strategies to improve the GTS
• Expanding bandwidth
• Flexible connectivity
• Saving recurrent cost
Use of
cost-effective
network services
Leased circuits
• Internet like applications
• Saving implementation costs
and human resources
• allowing latitude in selecting
a network service
Improved GTS
Migration to
TCP/IP
Legacy protocols
Strengthen the overall GTS capabilities
with cost-effectiveness and technical trends
Strategies
Traditional GTS
Layer separation approach to the improved GTS
File transfer
Adding applications
Server/client
Migration to TCP/IP
Application layer
Message
Switching
TCP/IP
Legacy protocol
File transfer
Server/client
Transmission
protocol layer
Frame Relay
Use of network services
IP-VPN
Transport layer
Message
Switching
TCP/IP
Legacy protocol
Concepts of IMTN
The CBS, at its 1998 extra-ordinary session, stressed that the MTN
shall be reviewed fundamentally to meet evolving data exchange
requirements of WMO Programmes other than the WWW. The IMTN
project has been promoting the reform of the MTN capability as a
genuine network since its commencement in 1999.
Reform concepts are:
(1) to provide capability and flexibility to meet new and future
requirements by using technical innovation;
(2) to seek cost-effectiveness with appropriate reliability and security;
(3) to challenge establishment of a collaborative contractual
framework;
(4) to keep up with an appropriate pace for implementation, i.e.
“early implementation leads early benefits.”
A point of implementation strategy is the evolution
from bilateral physical circuits
to logical connections through seamless network “cloud”.
Status of the IMTN project
The current IMTN is structured with two “clouds” of Frame Relay
network services.
• 17 of 25 MTN circuits are in operation on the Clouds.
• 12 of 18 MTN centers participate in the Clouds.
Cloud I
Tokyo
Melbourne
Washington
Buenos Aires
Brasilia
Beijing
Sofia
Moscow
Prague
Exeter
Jeddah
Offenbach
Cloud II
Nairobi
Toulouse
Dakar
New Delhi
Algiers
Cairo
Details of Cloud I
• Logical connections (PVC: Permanent Virtual Circuit) through BT
Frame Relay network
• Configuration of asymmetric bandwidths by CIR (Committed
Information Rate) for unbalanced traffic conditions
• Arrangement of backup re-routing with a dynamic routing protocol
(BGP-4)
Washington
1.5Mbps
Access circuit
1.5Mbps
32k
768k
32k
Tokyo
16k
4k
256kbps
Disaster Recovery Site
32k
32k
BT Frame Relay 16k
32k
16k
Brisbane
4k 16k
32k
16k
64k
64k
256kbps
Melbourne
Exeter
256kbps
Primary PVC
BoM Backup PVC
CIR in each direction
[bps]
Unbalanced traffic and asymmetric CIRs (Cloud I)
25 Mbytes/day
55% of CIR
CIR=32kbps
CIR=768kbps
Tokyo
1.5Mbps
FR
Washington
1.5Mbps
40% of CIR
Each pays for
its local access circuit
and an incoming CIR
1076 Mbytes/day
Backup Re-routing (Cloud I)
Washington
Cloud I
Tokyo
Link failure
BGP-4
Melbourne
Traffic on
normal condition
BGP-4
Bypass traffic
for backup
Details of Cloud II
• PVCs through OBS (Orange Business Service, former EQUANT)
Frame Relay network under expansion of the European contract
• Centralized network monitoring by ECMWF & Consumer Premise
Equipment (CPE, Cisco Router) managed by OBS
• Configuration of asymmetric bandwidths by CIR
Moscow
Beijing
Tokyo
New Delhi
CPE
CPE
128
kbps
64kbps
256kbps
256kbps
16k
16k
16k 8k
48k 96k
8k
32k
Cloud II
By OBS
CPE
CPE
CPE
256kbps
64k
48k
Sofia
32k
16k 8k
CPE
512kbps
8k
Prague
8k
128k
384k
512kbps
CPE
Exeter
64k
64kbps
1024
kbps
CPE
CPE
Jeddah
Offenbach
2048
kbps
CPE
Toulouse
Collaborative contract (Cloud II)
Customer
representative
(ECMWF)
Network service
provider
(OBS)
Master
Contract
Accession
Agreement
Network
monitoring
Helpdesk
Regional network in Europe
(RMDCN in Region VI)
Accession
Agreement
Accession
Agreement
IMTN Cloud II
Accession
Agreement
Accession
Agreement
Accession
Agreement
Benefits of IMTN
The implementation of the IMTN brings various benefits:
(1) further reliability
stable operation for real-time data exchange
(2) better performance in throughput
exchange of large volume of data such as satellite data/products
(3) manageable link parameters
efficient configuration to meet traffic conditions
(4) flexibility and scalability
easy compliance with evolving requirements
(5) cost-effectiveness
saving recurrent costs
Market trends of global managed data network services
• Migration from leased circuit, ATM and Frame Relay services to
MPLS/IP-VPN (Multi Protocol Label Switching/IP-Virtual Private Network)
is remarkable.
• Layer 2 switching VPN is one of next-generation WAN services but
premature in market.
[billion US$]
140
Retail scale of global WAN services
120
Estimation
Leased circuit
ATM/Cell Relay
Frame Relay
MPLS/IP-VPN
Layer 2 VPN
100
80
60
40
20
0
2003
2004
2005
2006
2007
2008
[year]
Market share of Tier-1 global network operators
Market leaders : Equant (OBS at present), AT&T and BT/BT Infonet
Their strategies:
• Extending service coverage by establishing new MPLS PoPs
(Points of Presence)
• Bilateral partnerships with national and regional telecom carriers
for MPLS interoperability outside of their footprints
Fast-growth markets : Asia and Eastern Europe
Equant
(present: OBS)
12%
SI/IT outsourcers
37%
AT&T
12%
BT/BT Infonet
11%
Other
network
operators
15%
Global WAN service share (2nd quarter of 2005)
MCI
7%
Sprint
1%
Cable & Wireless
2%
T-Systems
2%
NTT Communications
1%
MPLS/IP-VPN
MPLS/IP-VPN is one of most promising WAN services.
IP
IP Label
VPN
group
IP Label
IP
Core Router
CE
PE
Closed
IP network
by a provider
VPN group
CE
PE
Core Router
PE
CE
CE
Core Router
Provider’s PEs and Core Routers based on MPLS have Label Tables and switch IP packets forward
according to the Tables.
CE : Customer Edge Router
PE : Provider Edge Router
VPN : Virtual Private Network
MPLS : Multi Protocol Label Switching
Future of IMTN
MPLS/IP-VPN
GTS
IMTN
WIS
core network
Frame Relay
End of
2007
Cloud I
Early
2007
MPLS/IP-VPN
Frame Relay
Cloud II
Study of possibility of
consolidation of two Clouds
Coordination
For further improvement, migration from Frame Relay to MPLS/IP-VPN is
planned. MPLS/IP-VPN service provides:
• flexibility of mesh connectivity among GISCs
• additional bandwidth.
The IMTN would function as a WIS core network
linking a small number of GISCs together.
Slide 6
IMTN and managed data network services
Hiroyuki ICHIJO (Japan Meteorological Agency
Technical Conference on the WIS (Seoul, 6-8 November 2006)
MTN configuration
The Main Telecommunication Network (MTN) interconnects 6 Regional
Meteorological Telecommunication Networks (RMTNs) as a core of the GTS.
The MTN consists of 18 MTN Centres and 25 connections.
Region VI
Region I
Region II
Region V
Region IV
Region III
Strategies to improve the GTS
• Expanding bandwidth
• Flexible connectivity
• Saving recurrent cost
Use of
cost-effective
network services
Leased circuits
• Internet like applications
• Saving implementation costs
and human resources
• allowing latitude in selecting
a network service
Improved GTS
Migration to
TCP/IP
Legacy protocols
Strengthen the overall GTS capabilities
with cost-effectiveness and technical trends
Strategies
Traditional GTS
Layer separation approach to the improved GTS
File transfer
Adding applications
Server/client
Migration to TCP/IP
Application layer
Message
Switching
TCP/IP
Legacy protocol
File transfer
Server/client
Transmission
protocol layer
Frame Relay
Use of network services
IP-VPN
Transport layer
Message
Switching
TCP/IP
Legacy protocol
Concepts of IMTN
The CBS, at its 1998 extra-ordinary session, stressed that the MTN
shall be reviewed fundamentally to meet evolving data exchange
requirements of WMO Programmes other than the WWW. The IMTN
project has been promoting the reform of the MTN capability as a
genuine network since its commencement in 1999.
Reform concepts are:
(1) to provide capability and flexibility to meet new and future
requirements by using technical innovation;
(2) to seek cost-effectiveness with appropriate reliability and security;
(3) to challenge establishment of a collaborative contractual
framework;
(4) to keep up with an appropriate pace for implementation, i.e.
“early implementation leads early benefits.”
A point of implementation strategy is the evolution
from bilateral physical circuits
to logical connections through seamless network “cloud”.
Status of the IMTN project
The current IMTN is structured with two “clouds” of Frame Relay
network services.
• 17 of 25 MTN circuits are in operation on the Clouds.
• 12 of 18 MTN centers participate in the Clouds.
Cloud I
Tokyo
Melbourne
Washington
Buenos Aires
Brasilia
Beijing
Sofia
Moscow
Prague
Exeter
Jeddah
Offenbach
Cloud II
Nairobi
Toulouse
Dakar
New Delhi
Algiers
Cairo
Details of Cloud I
• Logical connections (PVC: Permanent Virtual Circuit) through BT
Frame Relay network
• Configuration of asymmetric bandwidths by CIR (Committed
Information Rate) for unbalanced traffic conditions
• Arrangement of backup re-routing with a dynamic routing protocol
(BGP-4)
Washington
1.5Mbps
Access circuit
1.5Mbps
32k
768k
32k
Tokyo
16k
4k
256kbps
Disaster Recovery Site
32k
32k
BT Frame Relay 16k
32k
16k
Brisbane
4k 16k
32k
16k
64k
64k
256kbps
Melbourne
Exeter
256kbps
Primary PVC
BoM Backup PVC
CIR in each direction
[bps]
Unbalanced traffic and asymmetric CIRs (Cloud I)
25 Mbytes/day
55% of CIR
CIR=32kbps
CIR=768kbps
Tokyo
1.5Mbps
FR
Washington
1.5Mbps
40% of CIR
Each pays for
its local access circuit
and an incoming CIR
1076 Mbytes/day
Backup Re-routing (Cloud I)
Washington
Cloud I
Tokyo
Link failure
BGP-4
Melbourne
Traffic on
normal condition
BGP-4
Bypass traffic
for backup
Details of Cloud II
• PVCs through OBS (Orange Business Service, former EQUANT)
Frame Relay network under expansion of the European contract
• Centralized network monitoring by ECMWF & Consumer Premise
Equipment (CPE, Cisco Router) managed by OBS
• Configuration of asymmetric bandwidths by CIR
Moscow
Beijing
Tokyo
New Delhi
CPE
CPE
128
kbps
64kbps
256kbps
256kbps
16k
16k
16k 8k
48k 96k
8k
32k
Cloud II
By OBS
CPE
CPE
CPE
256kbps
64k
48k
Sofia
32k
16k 8k
CPE
512kbps
8k
Prague
8k
128k
384k
512kbps
CPE
Exeter
64k
64kbps
1024
kbps
CPE
CPE
Jeddah
Offenbach
2048
kbps
CPE
Toulouse
Collaborative contract (Cloud II)
Customer
representative
(ECMWF)
Network service
provider
(OBS)
Master
Contract
Accession
Agreement
Network
monitoring
Helpdesk
Regional network in Europe
(RMDCN in Region VI)
Accession
Agreement
Accession
Agreement
IMTN Cloud II
Accession
Agreement
Accession
Agreement
Accession
Agreement
Benefits of IMTN
The implementation of the IMTN brings various benefits:
(1) further reliability
stable operation for real-time data exchange
(2) better performance in throughput
exchange of large volume of data such as satellite data/products
(3) manageable link parameters
efficient configuration to meet traffic conditions
(4) flexibility and scalability
easy compliance with evolving requirements
(5) cost-effectiveness
saving recurrent costs
Market trends of global managed data network services
• Migration from leased circuit, ATM and Frame Relay services to
MPLS/IP-VPN (Multi Protocol Label Switching/IP-Virtual Private Network)
is remarkable.
• Layer 2 switching VPN is one of next-generation WAN services but
premature in market.
[billion US$]
140
Retail scale of global WAN services
120
Estimation
Leased circuit
ATM/Cell Relay
Frame Relay
MPLS/IP-VPN
Layer 2 VPN
100
80
60
40
20
0
2003
2004
2005
2006
2007
2008
[year]
Market share of Tier-1 global network operators
Market leaders : Equant (OBS at present), AT&T and BT/BT Infonet
Their strategies:
• Extending service coverage by establishing new MPLS PoPs
(Points of Presence)
• Bilateral partnerships with national and regional telecom carriers
for MPLS interoperability outside of their footprints
Fast-growth markets : Asia and Eastern Europe
Equant
(present: OBS)
12%
SI/IT outsourcers
37%
AT&T
12%
BT/BT Infonet
11%
Other
network
operators
15%
Global WAN service share (2nd quarter of 2005)
MCI
7%
Sprint
1%
Cable & Wireless
2%
T-Systems
2%
NTT Communications
1%
MPLS/IP-VPN
MPLS/IP-VPN is one of most promising WAN services.
IP
IP Label
VPN
group
IP Label
IP
Core Router
CE
PE
Closed
IP network
by a provider
VPN group
CE
PE
Core Router
PE
CE
CE
Core Router
Provider’s PEs and Core Routers based on MPLS have Label Tables and switch IP packets forward
according to the Tables.
CE : Customer Edge Router
PE : Provider Edge Router
VPN : Virtual Private Network
MPLS : Multi Protocol Label Switching
Future of IMTN
MPLS/IP-VPN
GTS
IMTN
WIS
core network
Frame Relay
End of
2007
Cloud I
Early
2007
MPLS/IP-VPN
Frame Relay
Cloud II
Study of possibility of
consolidation of two Clouds
Coordination
For further improvement, migration from Frame Relay to MPLS/IP-VPN is
planned. MPLS/IP-VPN service provides:
• flexibility of mesh connectivity among GISCs
• additional bandwidth.
The IMTN would function as a WIS core network
linking a small number of GISCs together.
Slide 7
IMTN and managed data network services
Hiroyuki ICHIJO (Japan Meteorological Agency
Technical Conference on the WIS (Seoul, 6-8 November 2006)
MTN configuration
The Main Telecommunication Network (MTN) interconnects 6 Regional
Meteorological Telecommunication Networks (RMTNs) as a core of the GTS.
The MTN consists of 18 MTN Centres and 25 connections.
Region VI
Region I
Region II
Region V
Region IV
Region III
Strategies to improve the GTS
• Expanding bandwidth
• Flexible connectivity
• Saving recurrent cost
Use of
cost-effective
network services
Leased circuits
• Internet like applications
• Saving implementation costs
and human resources
• allowing latitude in selecting
a network service
Improved GTS
Migration to
TCP/IP
Legacy protocols
Strengthen the overall GTS capabilities
with cost-effectiveness and technical trends
Strategies
Traditional GTS
Layer separation approach to the improved GTS
File transfer
Adding applications
Server/client
Migration to TCP/IP
Application layer
Message
Switching
TCP/IP
Legacy protocol
File transfer
Server/client
Transmission
protocol layer
Frame Relay
Use of network services
IP-VPN
Transport layer
Message
Switching
TCP/IP
Legacy protocol
Concepts of IMTN
The CBS, at its 1998 extra-ordinary session, stressed that the MTN
shall be reviewed fundamentally to meet evolving data exchange
requirements of WMO Programmes other than the WWW. The IMTN
project has been promoting the reform of the MTN capability as a
genuine network since its commencement in 1999.
Reform concepts are:
(1) to provide capability and flexibility to meet new and future
requirements by using technical innovation;
(2) to seek cost-effectiveness with appropriate reliability and security;
(3) to challenge establishment of a collaborative contractual
framework;
(4) to keep up with an appropriate pace for implementation, i.e.
“early implementation leads early benefits.”
A point of implementation strategy is the evolution
from bilateral physical circuits
to logical connections through seamless network “cloud”.
Status of the IMTN project
The current IMTN is structured with two “clouds” of Frame Relay
network services.
• 17 of 25 MTN circuits are in operation on the Clouds.
• 12 of 18 MTN centers participate in the Clouds.
Cloud I
Tokyo
Melbourne
Washington
Buenos Aires
Brasilia
Beijing
Sofia
Moscow
Prague
Exeter
Jeddah
Offenbach
Cloud II
Nairobi
Toulouse
Dakar
New Delhi
Algiers
Cairo
Details of Cloud I
• Logical connections (PVC: Permanent Virtual Circuit) through BT
Frame Relay network
• Configuration of asymmetric bandwidths by CIR (Committed
Information Rate) for unbalanced traffic conditions
• Arrangement of backup re-routing with a dynamic routing protocol
(BGP-4)
Washington
1.5Mbps
Access circuit
1.5Mbps
32k
768k
32k
Tokyo
16k
4k
256kbps
Disaster Recovery Site
32k
32k
BT Frame Relay 16k
32k
16k
Brisbane
4k 16k
32k
16k
64k
64k
256kbps
Melbourne
Exeter
256kbps
Primary PVC
BoM Backup PVC
CIR in each direction
[bps]
Unbalanced traffic and asymmetric CIRs (Cloud I)
25 Mbytes/day
55% of CIR
CIR=32kbps
CIR=768kbps
Tokyo
1.5Mbps
FR
Washington
1.5Mbps
40% of CIR
Each pays for
its local access circuit
and an incoming CIR
1076 Mbytes/day
Backup Re-routing (Cloud I)
Washington
Cloud I
Tokyo
Link failure
BGP-4
Melbourne
Traffic on
normal condition
BGP-4
Bypass traffic
for backup
Details of Cloud II
• PVCs through OBS (Orange Business Service, former EQUANT)
Frame Relay network under expansion of the European contract
• Centralized network monitoring by ECMWF & Consumer Premise
Equipment (CPE, Cisco Router) managed by OBS
• Configuration of asymmetric bandwidths by CIR
Moscow
Beijing
Tokyo
New Delhi
CPE
CPE
128
kbps
64kbps
256kbps
256kbps
16k
16k
16k 8k
48k 96k
8k
32k
Cloud II
By OBS
CPE
CPE
CPE
256kbps
64k
48k
Sofia
32k
16k 8k
CPE
512kbps
8k
Prague
8k
128k
384k
512kbps
CPE
Exeter
64k
64kbps
1024
kbps
CPE
CPE
Jeddah
Offenbach
2048
kbps
CPE
Toulouse
Collaborative contract (Cloud II)
Customer
representative
(ECMWF)
Network service
provider
(OBS)
Master
Contract
Accession
Agreement
Network
monitoring
Helpdesk
Regional network in Europe
(RMDCN in Region VI)
Accession
Agreement
Accession
Agreement
IMTN Cloud II
Accession
Agreement
Accession
Agreement
Accession
Agreement
Benefits of IMTN
The implementation of the IMTN brings various benefits:
(1) further reliability
stable operation for real-time data exchange
(2) better performance in throughput
exchange of large volume of data such as satellite data/products
(3) manageable link parameters
efficient configuration to meet traffic conditions
(4) flexibility and scalability
easy compliance with evolving requirements
(5) cost-effectiveness
saving recurrent costs
Market trends of global managed data network services
• Migration from leased circuit, ATM and Frame Relay services to
MPLS/IP-VPN (Multi Protocol Label Switching/IP-Virtual Private Network)
is remarkable.
• Layer 2 switching VPN is one of next-generation WAN services but
premature in market.
[billion US$]
140
Retail scale of global WAN services
120
Estimation
Leased circuit
ATM/Cell Relay
Frame Relay
MPLS/IP-VPN
Layer 2 VPN
100
80
60
40
20
0
2003
2004
2005
2006
2007
2008
[year]
Market share of Tier-1 global network operators
Market leaders : Equant (OBS at present), AT&T and BT/BT Infonet
Their strategies:
• Extending service coverage by establishing new MPLS PoPs
(Points of Presence)
• Bilateral partnerships with national and regional telecom carriers
for MPLS interoperability outside of their footprints
Fast-growth markets : Asia and Eastern Europe
Equant
(present: OBS)
12%
SI/IT outsourcers
37%
AT&T
12%
BT/BT Infonet
11%
Other
network
operators
15%
Global WAN service share (2nd quarter of 2005)
MCI
7%
Sprint
1%
Cable & Wireless
2%
T-Systems
2%
NTT Communications
1%
MPLS/IP-VPN
MPLS/IP-VPN is one of most promising WAN services.
IP
IP Label
VPN
group
IP Label
IP
Core Router
CE
PE
Closed
IP network
by a provider
VPN group
CE
PE
Core Router
PE
CE
CE
Core Router
Provider’s PEs and Core Routers based on MPLS have Label Tables and switch IP packets forward
according to the Tables.
CE : Customer Edge Router
PE : Provider Edge Router
VPN : Virtual Private Network
MPLS : Multi Protocol Label Switching
Future of IMTN
MPLS/IP-VPN
GTS
IMTN
WIS
core network
Frame Relay
End of
2007
Cloud I
Early
2007
MPLS/IP-VPN
Frame Relay
Cloud II
Study of possibility of
consolidation of two Clouds
Coordination
For further improvement, migration from Frame Relay to MPLS/IP-VPN is
planned. MPLS/IP-VPN service provides:
• flexibility of mesh connectivity among GISCs
• additional bandwidth.
The IMTN would function as a WIS core network
linking a small number of GISCs together.
Slide 8
IMTN and managed data network services
Hiroyuki ICHIJO (Japan Meteorological Agency
Technical Conference on the WIS (Seoul, 6-8 November 2006)
MTN configuration
The Main Telecommunication Network (MTN) interconnects 6 Regional
Meteorological Telecommunication Networks (RMTNs) as a core of the GTS.
The MTN consists of 18 MTN Centres and 25 connections.
Region VI
Region I
Region II
Region V
Region IV
Region III
Strategies to improve the GTS
• Expanding bandwidth
• Flexible connectivity
• Saving recurrent cost
Use of
cost-effective
network services
Leased circuits
• Internet like applications
• Saving implementation costs
and human resources
• allowing latitude in selecting
a network service
Improved GTS
Migration to
TCP/IP
Legacy protocols
Strengthen the overall GTS capabilities
with cost-effectiveness and technical trends
Strategies
Traditional GTS
Layer separation approach to the improved GTS
File transfer
Adding applications
Server/client
Migration to TCP/IP
Application layer
Message
Switching
TCP/IP
Legacy protocol
File transfer
Server/client
Transmission
protocol layer
Frame Relay
Use of network services
IP-VPN
Transport layer
Message
Switching
TCP/IP
Legacy protocol
Concepts of IMTN
The CBS, at its 1998 extra-ordinary session, stressed that the MTN
shall be reviewed fundamentally to meet evolving data exchange
requirements of WMO Programmes other than the WWW. The IMTN
project has been promoting the reform of the MTN capability as a
genuine network since its commencement in 1999.
Reform concepts are:
(1) to provide capability and flexibility to meet new and future
requirements by using technical innovation;
(2) to seek cost-effectiveness with appropriate reliability and security;
(3) to challenge establishment of a collaborative contractual
framework;
(4) to keep up with an appropriate pace for implementation, i.e.
“early implementation leads early benefits.”
A point of implementation strategy is the evolution
from bilateral physical circuits
to logical connections through seamless network “cloud”.
Status of the IMTN project
The current IMTN is structured with two “clouds” of Frame Relay
network services.
• 17 of 25 MTN circuits are in operation on the Clouds.
• 12 of 18 MTN centers participate in the Clouds.
Cloud I
Tokyo
Melbourne
Washington
Buenos Aires
Brasilia
Beijing
Sofia
Moscow
Prague
Exeter
Jeddah
Offenbach
Cloud II
Nairobi
Toulouse
Dakar
New Delhi
Algiers
Cairo
Details of Cloud I
• Logical connections (PVC: Permanent Virtual Circuit) through BT
Frame Relay network
• Configuration of asymmetric bandwidths by CIR (Committed
Information Rate) for unbalanced traffic conditions
• Arrangement of backup re-routing with a dynamic routing protocol
(BGP-4)
Washington
1.5Mbps
Access circuit
1.5Mbps
32k
768k
32k
Tokyo
16k
4k
256kbps
Disaster Recovery Site
32k
32k
BT Frame Relay 16k
32k
16k
Brisbane
4k 16k
32k
16k
64k
64k
256kbps
Melbourne
Exeter
256kbps
Primary PVC
BoM Backup PVC
CIR in each direction
[bps]
Unbalanced traffic and asymmetric CIRs (Cloud I)
25 Mbytes/day
55% of CIR
CIR=32kbps
CIR=768kbps
Tokyo
1.5Mbps
FR
Washington
1.5Mbps
40% of CIR
Each pays for
its local access circuit
and an incoming CIR
1076 Mbytes/day
Backup Re-routing (Cloud I)
Washington
Cloud I
Tokyo
Link failure
BGP-4
Melbourne
Traffic on
normal condition
BGP-4
Bypass traffic
for backup
Details of Cloud II
• PVCs through OBS (Orange Business Service, former EQUANT)
Frame Relay network under expansion of the European contract
• Centralized network monitoring by ECMWF & Consumer Premise
Equipment (CPE, Cisco Router) managed by OBS
• Configuration of asymmetric bandwidths by CIR
Moscow
Beijing
Tokyo
New Delhi
CPE
CPE
128
kbps
64kbps
256kbps
256kbps
16k
16k
16k 8k
48k 96k
8k
32k
Cloud II
By OBS
CPE
CPE
CPE
256kbps
64k
48k
Sofia
32k
16k 8k
CPE
512kbps
8k
Prague
8k
128k
384k
512kbps
CPE
Exeter
64k
64kbps
1024
kbps
CPE
CPE
Jeddah
Offenbach
2048
kbps
CPE
Toulouse
Collaborative contract (Cloud II)
Customer
representative
(ECMWF)
Network service
provider
(OBS)
Master
Contract
Accession
Agreement
Network
monitoring
Helpdesk
Regional network in Europe
(RMDCN in Region VI)
Accession
Agreement
Accession
Agreement
IMTN Cloud II
Accession
Agreement
Accession
Agreement
Accession
Agreement
Benefits of IMTN
The implementation of the IMTN brings various benefits:
(1) further reliability
stable operation for real-time data exchange
(2) better performance in throughput
exchange of large volume of data such as satellite data/products
(3) manageable link parameters
efficient configuration to meet traffic conditions
(4) flexibility and scalability
easy compliance with evolving requirements
(5) cost-effectiveness
saving recurrent costs
Market trends of global managed data network services
• Migration from leased circuit, ATM and Frame Relay services to
MPLS/IP-VPN (Multi Protocol Label Switching/IP-Virtual Private Network)
is remarkable.
• Layer 2 switching VPN is one of next-generation WAN services but
premature in market.
[billion US$]
140
Retail scale of global WAN services
120
Estimation
Leased circuit
ATM/Cell Relay
Frame Relay
MPLS/IP-VPN
Layer 2 VPN
100
80
60
40
20
0
2003
2004
2005
2006
2007
2008
[year]
Market share of Tier-1 global network operators
Market leaders : Equant (OBS at present), AT&T and BT/BT Infonet
Their strategies:
• Extending service coverage by establishing new MPLS PoPs
(Points of Presence)
• Bilateral partnerships with national and regional telecom carriers
for MPLS interoperability outside of their footprints
Fast-growth markets : Asia and Eastern Europe
Equant
(present: OBS)
12%
SI/IT outsourcers
37%
AT&T
12%
BT/BT Infonet
11%
Other
network
operators
15%
Global WAN service share (2nd quarter of 2005)
MCI
7%
Sprint
1%
Cable & Wireless
2%
T-Systems
2%
NTT Communications
1%
MPLS/IP-VPN
MPLS/IP-VPN is one of most promising WAN services.
IP
IP Label
VPN
group
IP Label
IP
Core Router
CE
PE
Closed
IP network
by a provider
VPN group
CE
PE
Core Router
PE
CE
CE
Core Router
Provider’s PEs and Core Routers based on MPLS have Label Tables and switch IP packets forward
according to the Tables.
CE : Customer Edge Router
PE : Provider Edge Router
VPN : Virtual Private Network
MPLS : Multi Protocol Label Switching
Future of IMTN
MPLS/IP-VPN
GTS
IMTN
WIS
core network
Frame Relay
End of
2007
Cloud I
Early
2007
MPLS/IP-VPN
Frame Relay
Cloud II
Study of possibility of
consolidation of two Clouds
Coordination
For further improvement, migration from Frame Relay to MPLS/IP-VPN is
planned. MPLS/IP-VPN service provides:
• flexibility of mesh connectivity among GISCs
• additional bandwidth.
The IMTN would function as a WIS core network
linking a small number of GISCs together.
Slide 9
IMTN and managed data network services
Hiroyuki ICHIJO (Japan Meteorological Agency
Technical Conference on the WIS (Seoul, 6-8 November 2006)
MTN configuration
The Main Telecommunication Network (MTN) interconnects 6 Regional
Meteorological Telecommunication Networks (RMTNs) as a core of the GTS.
The MTN consists of 18 MTN Centres and 25 connections.
Region VI
Region I
Region II
Region V
Region IV
Region III
Strategies to improve the GTS
• Expanding bandwidth
• Flexible connectivity
• Saving recurrent cost
Use of
cost-effective
network services
Leased circuits
• Internet like applications
• Saving implementation costs
and human resources
• allowing latitude in selecting
a network service
Improved GTS
Migration to
TCP/IP
Legacy protocols
Strengthen the overall GTS capabilities
with cost-effectiveness and technical trends
Strategies
Traditional GTS
Layer separation approach to the improved GTS
File transfer
Adding applications
Server/client
Migration to TCP/IP
Application layer
Message
Switching
TCP/IP
Legacy protocol
File transfer
Server/client
Transmission
protocol layer
Frame Relay
Use of network services
IP-VPN
Transport layer
Message
Switching
TCP/IP
Legacy protocol
Concepts of IMTN
The CBS, at its 1998 extra-ordinary session, stressed that the MTN
shall be reviewed fundamentally to meet evolving data exchange
requirements of WMO Programmes other than the WWW. The IMTN
project has been promoting the reform of the MTN capability as a
genuine network since its commencement in 1999.
Reform concepts are:
(1) to provide capability and flexibility to meet new and future
requirements by using technical innovation;
(2) to seek cost-effectiveness with appropriate reliability and security;
(3) to challenge establishment of a collaborative contractual
framework;
(4) to keep up with an appropriate pace for implementation, i.e.
“early implementation leads early benefits.”
A point of implementation strategy is the evolution
from bilateral physical circuits
to logical connections through seamless network “cloud”.
Status of the IMTN project
The current IMTN is structured with two “clouds” of Frame Relay
network services.
• 17 of 25 MTN circuits are in operation on the Clouds.
• 12 of 18 MTN centers participate in the Clouds.
Cloud I
Tokyo
Melbourne
Washington
Buenos Aires
Brasilia
Beijing
Sofia
Moscow
Prague
Exeter
Jeddah
Offenbach
Cloud II
Nairobi
Toulouse
Dakar
New Delhi
Algiers
Cairo
Details of Cloud I
• Logical connections (PVC: Permanent Virtual Circuit) through BT
Frame Relay network
• Configuration of asymmetric bandwidths by CIR (Committed
Information Rate) for unbalanced traffic conditions
• Arrangement of backup re-routing with a dynamic routing protocol
(BGP-4)
Washington
1.5Mbps
Access circuit
1.5Mbps
32k
768k
32k
Tokyo
16k
4k
256kbps
Disaster Recovery Site
32k
32k
BT Frame Relay 16k
32k
16k
Brisbane
4k 16k
32k
16k
64k
64k
256kbps
Melbourne
Exeter
256kbps
Primary PVC
BoM Backup PVC
CIR in each direction
[bps]
Unbalanced traffic and asymmetric CIRs (Cloud I)
25 Mbytes/day
55% of CIR
CIR=32kbps
CIR=768kbps
Tokyo
1.5Mbps
FR
Washington
1.5Mbps
40% of CIR
Each pays for
its local access circuit
and an incoming CIR
1076 Mbytes/day
Backup Re-routing (Cloud I)
Washington
Cloud I
Tokyo
Link failure
BGP-4
Melbourne
Traffic on
normal condition
BGP-4
Bypass traffic
for backup
Details of Cloud II
• PVCs through OBS (Orange Business Service, former EQUANT)
Frame Relay network under expansion of the European contract
• Centralized network monitoring by ECMWF & Consumer Premise
Equipment (CPE, Cisco Router) managed by OBS
• Configuration of asymmetric bandwidths by CIR
Moscow
Beijing
Tokyo
New Delhi
CPE
CPE
128
kbps
64kbps
256kbps
256kbps
16k
16k
16k 8k
48k 96k
8k
32k
Cloud II
By OBS
CPE
CPE
CPE
256kbps
64k
48k
Sofia
32k
16k 8k
CPE
512kbps
8k
Prague
8k
128k
384k
512kbps
CPE
Exeter
64k
64kbps
1024
kbps
CPE
CPE
Jeddah
Offenbach
2048
kbps
CPE
Toulouse
Collaborative contract (Cloud II)
Customer
representative
(ECMWF)
Network service
provider
(OBS)
Master
Contract
Accession
Agreement
Network
monitoring
Helpdesk
Regional network in Europe
(RMDCN in Region VI)
Accession
Agreement
Accession
Agreement
IMTN Cloud II
Accession
Agreement
Accession
Agreement
Accession
Agreement
Benefits of IMTN
The implementation of the IMTN brings various benefits:
(1) further reliability
stable operation for real-time data exchange
(2) better performance in throughput
exchange of large volume of data such as satellite data/products
(3) manageable link parameters
efficient configuration to meet traffic conditions
(4) flexibility and scalability
easy compliance with evolving requirements
(5) cost-effectiveness
saving recurrent costs
Market trends of global managed data network services
• Migration from leased circuit, ATM and Frame Relay services to
MPLS/IP-VPN (Multi Protocol Label Switching/IP-Virtual Private Network)
is remarkable.
• Layer 2 switching VPN is one of next-generation WAN services but
premature in market.
[billion US$]
140
Retail scale of global WAN services
120
Estimation
Leased circuit
ATM/Cell Relay
Frame Relay
MPLS/IP-VPN
Layer 2 VPN
100
80
60
40
20
0
2003
2004
2005
2006
2007
2008
[year]
Market share of Tier-1 global network operators
Market leaders : Equant (OBS at present), AT&T and BT/BT Infonet
Their strategies:
• Extending service coverage by establishing new MPLS PoPs
(Points of Presence)
• Bilateral partnerships with national and regional telecom carriers
for MPLS interoperability outside of their footprints
Fast-growth markets : Asia and Eastern Europe
Equant
(present: OBS)
12%
SI/IT outsourcers
37%
AT&T
12%
BT/BT Infonet
11%
Other
network
operators
15%
Global WAN service share (2nd quarter of 2005)
MCI
7%
Sprint
1%
Cable & Wireless
2%
T-Systems
2%
NTT Communications
1%
MPLS/IP-VPN
MPLS/IP-VPN is one of most promising WAN services.
IP
IP Label
VPN
group
IP Label
IP
Core Router
CE
PE
Closed
IP network
by a provider
VPN group
CE
PE
Core Router
PE
CE
CE
Core Router
Provider’s PEs and Core Routers based on MPLS have Label Tables and switch IP packets forward
according to the Tables.
CE : Customer Edge Router
PE : Provider Edge Router
VPN : Virtual Private Network
MPLS : Multi Protocol Label Switching
Future of IMTN
MPLS/IP-VPN
GTS
IMTN
WIS
core network
Frame Relay
End of
2007
Cloud I
Early
2007
MPLS/IP-VPN
Frame Relay
Cloud II
Study of possibility of
consolidation of two Clouds
Coordination
For further improvement, migration from Frame Relay to MPLS/IP-VPN is
planned. MPLS/IP-VPN service provides:
• flexibility of mesh connectivity among GISCs
• additional bandwidth.
The IMTN would function as a WIS core network
linking a small number of GISCs together.
Slide 10
IMTN and managed data network services
Hiroyuki ICHIJO (Japan Meteorological Agency
Technical Conference on the WIS (Seoul, 6-8 November 2006)
MTN configuration
The Main Telecommunication Network (MTN) interconnects 6 Regional
Meteorological Telecommunication Networks (RMTNs) as a core of the GTS.
The MTN consists of 18 MTN Centres and 25 connections.
Region VI
Region I
Region II
Region V
Region IV
Region III
Strategies to improve the GTS
• Expanding bandwidth
• Flexible connectivity
• Saving recurrent cost
Use of
cost-effective
network services
Leased circuits
• Internet like applications
• Saving implementation costs
and human resources
• allowing latitude in selecting
a network service
Improved GTS
Migration to
TCP/IP
Legacy protocols
Strengthen the overall GTS capabilities
with cost-effectiveness and technical trends
Strategies
Traditional GTS
Layer separation approach to the improved GTS
File transfer
Adding applications
Server/client
Migration to TCP/IP
Application layer
Message
Switching
TCP/IP
Legacy protocol
File transfer
Server/client
Transmission
protocol layer
Frame Relay
Use of network services
IP-VPN
Transport layer
Message
Switching
TCP/IP
Legacy protocol
Concepts of IMTN
The CBS, at its 1998 extra-ordinary session, stressed that the MTN
shall be reviewed fundamentally to meet evolving data exchange
requirements of WMO Programmes other than the WWW. The IMTN
project has been promoting the reform of the MTN capability as a
genuine network since its commencement in 1999.
Reform concepts are:
(1) to provide capability and flexibility to meet new and future
requirements by using technical innovation;
(2) to seek cost-effectiveness with appropriate reliability and security;
(3) to challenge establishment of a collaborative contractual
framework;
(4) to keep up with an appropriate pace for implementation, i.e.
“early implementation leads early benefits.”
A point of implementation strategy is the evolution
from bilateral physical circuits
to logical connections through seamless network “cloud”.
Status of the IMTN project
The current IMTN is structured with two “clouds” of Frame Relay
network services.
• 17 of 25 MTN circuits are in operation on the Clouds.
• 12 of 18 MTN centers participate in the Clouds.
Cloud I
Tokyo
Melbourne
Washington
Buenos Aires
Brasilia
Beijing
Sofia
Moscow
Prague
Exeter
Jeddah
Offenbach
Cloud II
Nairobi
Toulouse
Dakar
New Delhi
Algiers
Cairo
Details of Cloud I
• Logical connections (PVC: Permanent Virtual Circuit) through BT
Frame Relay network
• Configuration of asymmetric bandwidths by CIR (Committed
Information Rate) for unbalanced traffic conditions
• Arrangement of backup re-routing with a dynamic routing protocol
(BGP-4)
Washington
1.5Mbps
Access circuit
1.5Mbps
32k
768k
32k
Tokyo
16k
4k
256kbps
Disaster Recovery Site
32k
32k
BT Frame Relay 16k
32k
16k
Brisbane
4k 16k
32k
16k
64k
64k
256kbps
Melbourne
Exeter
256kbps
Primary PVC
BoM Backup PVC
CIR in each direction
[bps]
Unbalanced traffic and asymmetric CIRs (Cloud I)
25 Mbytes/day
55% of CIR
CIR=32kbps
CIR=768kbps
Tokyo
1.5Mbps
FR
Washington
1.5Mbps
40% of CIR
Each pays for
its local access circuit
and an incoming CIR
1076 Mbytes/day
Backup Re-routing (Cloud I)
Washington
Cloud I
Tokyo
Link failure
BGP-4
Melbourne
Traffic on
normal condition
BGP-4
Bypass traffic
for backup
Details of Cloud II
• PVCs through OBS (Orange Business Service, former EQUANT)
Frame Relay network under expansion of the European contract
• Centralized network monitoring by ECMWF & Consumer Premise
Equipment (CPE, Cisco Router) managed by OBS
• Configuration of asymmetric bandwidths by CIR
Moscow
Beijing
Tokyo
New Delhi
CPE
CPE
128
kbps
64kbps
256kbps
256kbps
16k
16k
16k 8k
48k 96k
8k
32k
Cloud II
By OBS
CPE
CPE
CPE
256kbps
64k
48k
Sofia
32k
16k 8k
CPE
512kbps
8k
Prague
8k
128k
384k
512kbps
CPE
Exeter
64k
64kbps
1024
kbps
CPE
CPE
Jeddah
Offenbach
2048
kbps
CPE
Toulouse
Collaborative contract (Cloud II)
Customer
representative
(ECMWF)
Network service
provider
(OBS)
Master
Contract
Accession
Agreement
Network
monitoring
Helpdesk
Regional network in Europe
(RMDCN in Region VI)
Accession
Agreement
Accession
Agreement
IMTN Cloud II
Accession
Agreement
Accession
Agreement
Accession
Agreement
Benefits of IMTN
The implementation of the IMTN brings various benefits:
(1) further reliability
stable operation for real-time data exchange
(2) better performance in throughput
exchange of large volume of data such as satellite data/products
(3) manageable link parameters
efficient configuration to meet traffic conditions
(4) flexibility and scalability
easy compliance with evolving requirements
(5) cost-effectiveness
saving recurrent costs
Market trends of global managed data network services
• Migration from leased circuit, ATM and Frame Relay services to
MPLS/IP-VPN (Multi Protocol Label Switching/IP-Virtual Private Network)
is remarkable.
• Layer 2 switching VPN is one of next-generation WAN services but
premature in market.
[billion US$]
140
Retail scale of global WAN services
120
Estimation
Leased circuit
ATM/Cell Relay
Frame Relay
MPLS/IP-VPN
Layer 2 VPN
100
80
60
40
20
0
2003
2004
2005
2006
2007
2008
[year]
Market share of Tier-1 global network operators
Market leaders : Equant (OBS at present), AT&T and BT/BT Infonet
Their strategies:
• Extending service coverage by establishing new MPLS PoPs
(Points of Presence)
• Bilateral partnerships with national and regional telecom carriers
for MPLS interoperability outside of their footprints
Fast-growth markets : Asia and Eastern Europe
Equant
(present: OBS)
12%
SI/IT outsourcers
37%
AT&T
12%
BT/BT Infonet
11%
Other
network
operators
15%
Global WAN service share (2nd quarter of 2005)
MCI
7%
Sprint
1%
Cable & Wireless
2%
T-Systems
2%
NTT Communications
1%
MPLS/IP-VPN
MPLS/IP-VPN is one of most promising WAN services.
IP
IP Label
VPN
group
IP Label
IP
Core Router
CE
PE
Closed
IP network
by a provider
VPN group
CE
PE
Core Router
PE
CE
CE
Core Router
Provider’s PEs and Core Routers based on MPLS have Label Tables and switch IP packets forward
according to the Tables.
CE : Customer Edge Router
PE : Provider Edge Router
VPN : Virtual Private Network
MPLS : Multi Protocol Label Switching
Future of IMTN
MPLS/IP-VPN
GTS
IMTN
WIS
core network
Frame Relay
End of
2007
Cloud I
Early
2007
MPLS/IP-VPN
Frame Relay
Cloud II
Study of possibility of
consolidation of two Clouds
Coordination
For further improvement, migration from Frame Relay to MPLS/IP-VPN is
planned. MPLS/IP-VPN service provides:
• flexibility of mesh connectivity among GISCs
• additional bandwidth.
The IMTN would function as a WIS core network
linking a small number of GISCs together.
Slide 11
IMTN and managed data network services
Hiroyuki ICHIJO (Japan Meteorological Agency
Technical Conference on the WIS (Seoul, 6-8 November 2006)
MTN configuration
The Main Telecommunication Network (MTN) interconnects 6 Regional
Meteorological Telecommunication Networks (RMTNs) as a core of the GTS.
The MTN consists of 18 MTN Centres and 25 connections.
Region VI
Region I
Region II
Region V
Region IV
Region III
Strategies to improve the GTS
• Expanding bandwidth
• Flexible connectivity
• Saving recurrent cost
Use of
cost-effective
network services
Leased circuits
• Internet like applications
• Saving implementation costs
and human resources
• allowing latitude in selecting
a network service
Improved GTS
Migration to
TCP/IP
Legacy protocols
Strengthen the overall GTS capabilities
with cost-effectiveness and technical trends
Strategies
Traditional GTS
Layer separation approach to the improved GTS
File transfer
Adding applications
Server/client
Migration to TCP/IP
Application layer
Message
Switching
TCP/IP
Legacy protocol
File transfer
Server/client
Transmission
protocol layer
Frame Relay
Use of network services
IP-VPN
Transport layer
Message
Switching
TCP/IP
Legacy protocol
Concepts of IMTN
The CBS, at its 1998 extra-ordinary session, stressed that the MTN
shall be reviewed fundamentally to meet evolving data exchange
requirements of WMO Programmes other than the WWW. The IMTN
project has been promoting the reform of the MTN capability as a
genuine network since its commencement in 1999.
Reform concepts are:
(1) to provide capability and flexibility to meet new and future
requirements by using technical innovation;
(2) to seek cost-effectiveness with appropriate reliability and security;
(3) to challenge establishment of a collaborative contractual
framework;
(4) to keep up with an appropriate pace for implementation, i.e.
“early implementation leads early benefits.”
A point of implementation strategy is the evolution
from bilateral physical circuits
to logical connections through seamless network “cloud”.
Status of the IMTN project
The current IMTN is structured with two “clouds” of Frame Relay
network services.
• 17 of 25 MTN circuits are in operation on the Clouds.
• 12 of 18 MTN centers participate in the Clouds.
Cloud I
Tokyo
Melbourne
Washington
Buenos Aires
Brasilia
Beijing
Sofia
Moscow
Prague
Exeter
Jeddah
Offenbach
Cloud II
Nairobi
Toulouse
Dakar
New Delhi
Algiers
Cairo
Details of Cloud I
• Logical connections (PVC: Permanent Virtual Circuit) through BT
Frame Relay network
• Configuration of asymmetric bandwidths by CIR (Committed
Information Rate) for unbalanced traffic conditions
• Arrangement of backup re-routing with a dynamic routing protocol
(BGP-4)
Washington
1.5Mbps
Access circuit
1.5Mbps
32k
768k
32k
Tokyo
16k
4k
256kbps
Disaster Recovery Site
32k
32k
BT Frame Relay 16k
32k
16k
Brisbane
4k 16k
32k
16k
64k
64k
256kbps
Melbourne
Exeter
256kbps
Primary PVC
BoM Backup PVC
CIR in each direction
[bps]
Unbalanced traffic and asymmetric CIRs (Cloud I)
25 Mbytes/day
55% of CIR
CIR=32kbps
CIR=768kbps
Tokyo
1.5Mbps
FR
Washington
1.5Mbps
40% of CIR
Each pays for
its local access circuit
and an incoming CIR
1076 Mbytes/day
Backup Re-routing (Cloud I)
Washington
Cloud I
Tokyo
Link failure
BGP-4
Melbourne
Traffic on
normal condition
BGP-4
Bypass traffic
for backup
Details of Cloud II
• PVCs through OBS (Orange Business Service, former EQUANT)
Frame Relay network under expansion of the European contract
• Centralized network monitoring by ECMWF & Consumer Premise
Equipment (CPE, Cisco Router) managed by OBS
• Configuration of asymmetric bandwidths by CIR
Moscow
Beijing
Tokyo
New Delhi
CPE
CPE
128
kbps
64kbps
256kbps
256kbps
16k
16k
16k 8k
48k 96k
8k
32k
Cloud II
By OBS
CPE
CPE
CPE
256kbps
64k
48k
Sofia
32k
16k 8k
CPE
512kbps
8k
Prague
8k
128k
384k
512kbps
CPE
Exeter
64k
64kbps
1024
kbps
CPE
CPE
Jeddah
Offenbach
2048
kbps
CPE
Toulouse
Collaborative contract (Cloud II)
Customer
representative
(ECMWF)
Network service
provider
(OBS)
Master
Contract
Accession
Agreement
Network
monitoring
Helpdesk
Regional network in Europe
(RMDCN in Region VI)
Accession
Agreement
Accession
Agreement
IMTN Cloud II
Accession
Agreement
Accession
Agreement
Accession
Agreement
Benefits of IMTN
The implementation of the IMTN brings various benefits:
(1) further reliability
stable operation for real-time data exchange
(2) better performance in throughput
exchange of large volume of data such as satellite data/products
(3) manageable link parameters
efficient configuration to meet traffic conditions
(4) flexibility and scalability
easy compliance with evolving requirements
(5) cost-effectiveness
saving recurrent costs
Market trends of global managed data network services
• Migration from leased circuit, ATM and Frame Relay services to
MPLS/IP-VPN (Multi Protocol Label Switching/IP-Virtual Private Network)
is remarkable.
• Layer 2 switching VPN is one of next-generation WAN services but
premature in market.
[billion US$]
140
Retail scale of global WAN services
120
Estimation
Leased circuit
ATM/Cell Relay
Frame Relay
MPLS/IP-VPN
Layer 2 VPN
100
80
60
40
20
0
2003
2004
2005
2006
2007
2008
[year]
Market share of Tier-1 global network operators
Market leaders : Equant (OBS at present), AT&T and BT/BT Infonet
Their strategies:
• Extending service coverage by establishing new MPLS PoPs
(Points of Presence)
• Bilateral partnerships with national and regional telecom carriers
for MPLS interoperability outside of their footprints
Fast-growth markets : Asia and Eastern Europe
Equant
(present: OBS)
12%
SI/IT outsourcers
37%
AT&T
12%
BT/BT Infonet
11%
Other
network
operators
15%
Global WAN service share (2nd quarter of 2005)
MCI
7%
Sprint
1%
Cable & Wireless
2%
T-Systems
2%
NTT Communications
1%
MPLS/IP-VPN
MPLS/IP-VPN is one of most promising WAN services.
IP
IP Label
VPN
group
IP Label
IP
Core Router
CE
PE
Closed
IP network
by a provider
VPN group
CE
PE
Core Router
PE
CE
CE
Core Router
Provider’s PEs and Core Routers based on MPLS have Label Tables and switch IP packets forward
according to the Tables.
CE : Customer Edge Router
PE : Provider Edge Router
VPN : Virtual Private Network
MPLS : Multi Protocol Label Switching
Future of IMTN
MPLS/IP-VPN
GTS
IMTN
WIS
core network
Frame Relay
End of
2007
Cloud I
Early
2007
MPLS/IP-VPN
Frame Relay
Cloud II
Study of possibility of
consolidation of two Clouds
Coordination
For further improvement, migration from Frame Relay to MPLS/IP-VPN is
planned. MPLS/IP-VPN service provides:
• flexibility of mesh connectivity among GISCs
• additional bandwidth.
The IMTN would function as a WIS core network
linking a small number of GISCs together.
Slide 12
IMTN and managed data network services
Hiroyuki ICHIJO (Japan Meteorological Agency
Technical Conference on the WIS (Seoul, 6-8 November 2006)
MTN configuration
The Main Telecommunication Network (MTN) interconnects 6 Regional
Meteorological Telecommunication Networks (RMTNs) as a core of the GTS.
The MTN consists of 18 MTN Centres and 25 connections.
Region VI
Region I
Region II
Region V
Region IV
Region III
Strategies to improve the GTS
• Expanding bandwidth
• Flexible connectivity
• Saving recurrent cost
Use of
cost-effective
network services
Leased circuits
• Internet like applications
• Saving implementation costs
and human resources
• allowing latitude in selecting
a network service
Improved GTS
Migration to
TCP/IP
Legacy protocols
Strengthen the overall GTS capabilities
with cost-effectiveness and technical trends
Strategies
Traditional GTS
Layer separation approach to the improved GTS
File transfer
Adding applications
Server/client
Migration to TCP/IP
Application layer
Message
Switching
TCP/IP
Legacy protocol
File transfer
Server/client
Transmission
protocol layer
Frame Relay
Use of network services
IP-VPN
Transport layer
Message
Switching
TCP/IP
Legacy protocol
Concepts of IMTN
The CBS, at its 1998 extra-ordinary session, stressed that the MTN
shall be reviewed fundamentally to meet evolving data exchange
requirements of WMO Programmes other than the WWW. The IMTN
project has been promoting the reform of the MTN capability as a
genuine network since its commencement in 1999.
Reform concepts are:
(1) to provide capability and flexibility to meet new and future
requirements by using technical innovation;
(2) to seek cost-effectiveness with appropriate reliability and security;
(3) to challenge establishment of a collaborative contractual
framework;
(4) to keep up with an appropriate pace for implementation, i.e.
“early implementation leads early benefits.”
A point of implementation strategy is the evolution
from bilateral physical circuits
to logical connections through seamless network “cloud”.
Status of the IMTN project
The current IMTN is structured with two “clouds” of Frame Relay
network services.
• 17 of 25 MTN circuits are in operation on the Clouds.
• 12 of 18 MTN centers participate in the Clouds.
Cloud I
Tokyo
Melbourne
Washington
Buenos Aires
Brasilia
Beijing
Sofia
Moscow
Prague
Exeter
Jeddah
Offenbach
Cloud II
Nairobi
Toulouse
Dakar
New Delhi
Algiers
Cairo
Details of Cloud I
• Logical connections (PVC: Permanent Virtual Circuit) through BT
Frame Relay network
• Configuration of asymmetric bandwidths by CIR (Committed
Information Rate) for unbalanced traffic conditions
• Arrangement of backup re-routing with a dynamic routing protocol
(BGP-4)
Washington
1.5Mbps
Access circuit
1.5Mbps
32k
768k
32k
Tokyo
16k
4k
256kbps
Disaster Recovery Site
32k
32k
BT Frame Relay 16k
32k
16k
Brisbane
4k 16k
32k
16k
64k
64k
256kbps
Melbourne
Exeter
256kbps
Primary PVC
BoM Backup PVC
CIR in each direction
[bps]
Unbalanced traffic and asymmetric CIRs (Cloud I)
25 Mbytes/day
55% of CIR
CIR=32kbps
CIR=768kbps
Tokyo
1.5Mbps
FR
Washington
1.5Mbps
40% of CIR
Each pays for
its local access circuit
and an incoming CIR
1076 Mbytes/day
Backup Re-routing (Cloud I)
Washington
Cloud I
Tokyo
Link failure
BGP-4
Melbourne
Traffic on
normal condition
BGP-4
Bypass traffic
for backup
Details of Cloud II
• PVCs through OBS (Orange Business Service, former EQUANT)
Frame Relay network under expansion of the European contract
• Centralized network monitoring by ECMWF & Consumer Premise
Equipment (CPE, Cisco Router) managed by OBS
• Configuration of asymmetric bandwidths by CIR
Moscow
Beijing
Tokyo
New Delhi
CPE
CPE
128
kbps
64kbps
256kbps
256kbps
16k
16k
16k 8k
48k 96k
8k
32k
Cloud II
By OBS
CPE
CPE
CPE
256kbps
64k
48k
Sofia
32k
16k 8k
CPE
512kbps
8k
Prague
8k
128k
384k
512kbps
CPE
Exeter
64k
64kbps
1024
kbps
CPE
CPE
Jeddah
Offenbach
2048
kbps
CPE
Toulouse
Collaborative contract (Cloud II)
Customer
representative
(ECMWF)
Network service
provider
(OBS)
Master
Contract
Accession
Agreement
Network
monitoring
Helpdesk
Regional network in Europe
(RMDCN in Region VI)
Accession
Agreement
Accession
Agreement
IMTN Cloud II
Accession
Agreement
Accession
Agreement
Accession
Agreement
Benefits of IMTN
The implementation of the IMTN brings various benefits:
(1) further reliability
stable operation for real-time data exchange
(2) better performance in throughput
exchange of large volume of data such as satellite data/products
(3) manageable link parameters
efficient configuration to meet traffic conditions
(4) flexibility and scalability
easy compliance with evolving requirements
(5) cost-effectiveness
saving recurrent costs
Market trends of global managed data network services
• Migration from leased circuit, ATM and Frame Relay services to
MPLS/IP-VPN (Multi Protocol Label Switching/IP-Virtual Private Network)
is remarkable.
• Layer 2 switching VPN is one of next-generation WAN services but
premature in market.
[billion US$]
140
Retail scale of global WAN services
120
Estimation
Leased circuit
ATM/Cell Relay
Frame Relay
MPLS/IP-VPN
Layer 2 VPN
100
80
60
40
20
0
2003
2004
2005
2006
2007
2008
[year]
Market share of Tier-1 global network operators
Market leaders : Equant (OBS at present), AT&T and BT/BT Infonet
Their strategies:
• Extending service coverage by establishing new MPLS PoPs
(Points of Presence)
• Bilateral partnerships with national and regional telecom carriers
for MPLS interoperability outside of their footprints
Fast-growth markets : Asia and Eastern Europe
Equant
(present: OBS)
12%
SI/IT outsourcers
37%
AT&T
12%
BT/BT Infonet
11%
Other
network
operators
15%
Global WAN service share (2nd quarter of 2005)
MCI
7%
Sprint
1%
Cable & Wireless
2%
T-Systems
2%
NTT Communications
1%
MPLS/IP-VPN
MPLS/IP-VPN is one of most promising WAN services.
IP
IP Label
VPN
group
IP Label
IP
Core Router
CE
PE
Closed
IP network
by a provider
VPN group
CE
PE
Core Router
PE
CE
CE
Core Router
Provider’s PEs and Core Routers based on MPLS have Label Tables and switch IP packets forward
according to the Tables.
CE : Customer Edge Router
PE : Provider Edge Router
VPN : Virtual Private Network
MPLS : Multi Protocol Label Switching
Future of IMTN
MPLS/IP-VPN
GTS
IMTN
WIS
core network
Frame Relay
End of
2007
Cloud I
Early
2007
MPLS/IP-VPN
Frame Relay
Cloud II
Study of possibility of
consolidation of two Clouds
Coordination
For further improvement, migration from Frame Relay to MPLS/IP-VPN is
planned. MPLS/IP-VPN service provides:
• flexibility of mesh connectivity among GISCs
• additional bandwidth.
The IMTN would function as a WIS core network
linking a small number of GISCs together.
Slide 13
IMTN and managed data network services
Hiroyuki ICHIJO (Japan Meteorological Agency
Technical Conference on the WIS (Seoul, 6-8 November 2006)
MTN configuration
The Main Telecommunication Network (MTN) interconnects 6 Regional
Meteorological Telecommunication Networks (RMTNs) as a core of the GTS.
The MTN consists of 18 MTN Centres and 25 connections.
Region VI
Region I
Region II
Region V
Region IV
Region III
Strategies to improve the GTS
• Expanding bandwidth
• Flexible connectivity
• Saving recurrent cost
Use of
cost-effective
network services
Leased circuits
• Internet like applications
• Saving implementation costs
and human resources
• allowing latitude in selecting
a network service
Improved GTS
Migration to
TCP/IP
Legacy protocols
Strengthen the overall GTS capabilities
with cost-effectiveness and technical trends
Strategies
Traditional GTS
Layer separation approach to the improved GTS
File transfer
Adding applications
Server/client
Migration to TCP/IP
Application layer
Message
Switching
TCP/IP
Legacy protocol
File transfer
Server/client
Transmission
protocol layer
Frame Relay
Use of network services
IP-VPN
Transport layer
Message
Switching
TCP/IP
Legacy protocol
Concepts of IMTN
The CBS, at its 1998 extra-ordinary session, stressed that the MTN
shall be reviewed fundamentally to meet evolving data exchange
requirements of WMO Programmes other than the WWW. The IMTN
project has been promoting the reform of the MTN capability as a
genuine network since its commencement in 1999.
Reform concepts are:
(1) to provide capability and flexibility to meet new and future
requirements by using technical innovation;
(2) to seek cost-effectiveness with appropriate reliability and security;
(3) to challenge establishment of a collaborative contractual
framework;
(4) to keep up with an appropriate pace for implementation, i.e.
“early implementation leads early benefits.”
A point of implementation strategy is the evolution
from bilateral physical circuits
to logical connections through seamless network “cloud”.
Status of the IMTN project
The current IMTN is structured with two “clouds” of Frame Relay
network services.
• 17 of 25 MTN circuits are in operation on the Clouds.
• 12 of 18 MTN centers participate in the Clouds.
Cloud I
Tokyo
Melbourne
Washington
Buenos Aires
Brasilia
Beijing
Sofia
Moscow
Prague
Exeter
Jeddah
Offenbach
Cloud II
Nairobi
Toulouse
Dakar
New Delhi
Algiers
Cairo
Details of Cloud I
• Logical connections (PVC: Permanent Virtual Circuit) through BT
Frame Relay network
• Configuration of asymmetric bandwidths by CIR (Committed
Information Rate) for unbalanced traffic conditions
• Arrangement of backup re-routing with a dynamic routing protocol
(BGP-4)
Washington
1.5Mbps
Access circuit
1.5Mbps
32k
768k
32k
Tokyo
16k
4k
256kbps
Disaster Recovery Site
32k
32k
BT Frame Relay 16k
32k
16k
Brisbane
4k 16k
32k
16k
64k
64k
256kbps
Melbourne
Exeter
256kbps
Primary PVC
BoM Backup PVC
CIR in each direction
[bps]
Unbalanced traffic and asymmetric CIRs (Cloud I)
25 Mbytes/day
55% of CIR
CIR=32kbps
CIR=768kbps
Tokyo
1.5Mbps
FR
Washington
1.5Mbps
40% of CIR
Each pays for
its local access circuit
and an incoming CIR
1076 Mbytes/day
Backup Re-routing (Cloud I)
Washington
Cloud I
Tokyo
Link failure
BGP-4
Melbourne
Traffic on
normal condition
BGP-4
Bypass traffic
for backup
Details of Cloud II
• PVCs through OBS (Orange Business Service, former EQUANT)
Frame Relay network under expansion of the European contract
• Centralized network monitoring by ECMWF & Consumer Premise
Equipment (CPE, Cisco Router) managed by OBS
• Configuration of asymmetric bandwidths by CIR
Moscow
Beijing
Tokyo
New Delhi
CPE
CPE
128
kbps
64kbps
256kbps
256kbps
16k
16k
16k 8k
48k 96k
8k
32k
Cloud II
By OBS
CPE
CPE
CPE
256kbps
64k
48k
Sofia
32k
16k 8k
CPE
512kbps
8k
Prague
8k
128k
384k
512kbps
CPE
Exeter
64k
64kbps
1024
kbps
CPE
CPE
Jeddah
Offenbach
2048
kbps
CPE
Toulouse
Collaborative contract (Cloud II)
Customer
representative
(ECMWF)
Network service
provider
(OBS)
Master
Contract
Accession
Agreement
Network
monitoring
Helpdesk
Regional network in Europe
(RMDCN in Region VI)
Accession
Agreement
Accession
Agreement
IMTN Cloud II
Accession
Agreement
Accession
Agreement
Accession
Agreement
Benefits of IMTN
The implementation of the IMTN brings various benefits:
(1) further reliability
stable operation for real-time data exchange
(2) better performance in throughput
exchange of large volume of data such as satellite data/products
(3) manageable link parameters
efficient configuration to meet traffic conditions
(4) flexibility and scalability
easy compliance with evolving requirements
(5) cost-effectiveness
saving recurrent costs
Market trends of global managed data network services
• Migration from leased circuit, ATM and Frame Relay services to
MPLS/IP-VPN (Multi Protocol Label Switching/IP-Virtual Private Network)
is remarkable.
• Layer 2 switching VPN is one of next-generation WAN services but
premature in market.
[billion US$]
140
Retail scale of global WAN services
120
Estimation
Leased circuit
ATM/Cell Relay
Frame Relay
MPLS/IP-VPN
Layer 2 VPN
100
80
60
40
20
0
2003
2004
2005
2006
2007
2008
[year]
Market share of Tier-1 global network operators
Market leaders : Equant (OBS at present), AT&T and BT/BT Infonet
Their strategies:
• Extending service coverage by establishing new MPLS PoPs
(Points of Presence)
• Bilateral partnerships with national and regional telecom carriers
for MPLS interoperability outside of their footprints
Fast-growth markets : Asia and Eastern Europe
Equant
(present: OBS)
12%
SI/IT outsourcers
37%
AT&T
12%
BT/BT Infonet
11%
Other
network
operators
15%
Global WAN service share (2nd quarter of 2005)
MCI
7%
Sprint
1%
Cable & Wireless
2%
T-Systems
2%
NTT Communications
1%
MPLS/IP-VPN
MPLS/IP-VPN is one of most promising WAN services.
IP
IP Label
VPN
group
IP Label
IP
Core Router
CE
PE
Closed
IP network
by a provider
VPN group
CE
PE
Core Router
PE
CE
CE
Core Router
Provider’s PEs and Core Routers based on MPLS have Label Tables and switch IP packets forward
according to the Tables.
CE : Customer Edge Router
PE : Provider Edge Router
VPN : Virtual Private Network
MPLS : Multi Protocol Label Switching
Future of IMTN
MPLS/IP-VPN
GTS
IMTN
WIS
core network
Frame Relay
End of
2007
Cloud I
Early
2007
MPLS/IP-VPN
Frame Relay
Cloud II
Study of possibility of
consolidation of two Clouds
Coordination
For further improvement, migration from Frame Relay to MPLS/IP-VPN is
planned. MPLS/IP-VPN service provides:
• flexibility of mesh connectivity among GISCs
• additional bandwidth.
The IMTN would function as a WIS core network
linking a small number of GISCs together.
Slide 14
IMTN and managed data network services
Hiroyuki ICHIJO (Japan Meteorological Agency
Technical Conference on the WIS (Seoul, 6-8 November 2006)
MTN configuration
The Main Telecommunication Network (MTN) interconnects 6 Regional
Meteorological Telecommunication Networks (RMTNs) as a core of the GTS.
The MTN consists of 18 MTN Centres and 25 connections.
Region VI
Region I
Region II
Region V
Region IV
Region III
Strategies to improve the GTS
• Expanding bandwidth
• Flexible connectivity
• Saving recurrent cost
Use of
cost-effective
network services
Leased circuits
• Internet like applications
• Saving implementation costs
and human resources
• allowing latitude in selecting
a network service
Improved GTS
Migration to
TCP/IP
Legacy protocols
Strengthen the overall GTS capabilities
with cost-effectiveness and technical trends
Strategies
Traditional GTS
Layer separation approach to the improved GTS
File transfer
Adding applications
Server/client
Migration to TCP/IP
Application layer
Message
Switching
TCP/IP
Legacy protocol
File transfer
Server/client
Transmission
protocol layer
Frame Relay
Use of network services
IP-VPN
Transport layer
Message
Switching
TCP/IP
Legacy protocol
Concepts of IMTN
The CBS, at its 1998 extra-ordinary session, stressed that the MTN
shall be reviewed fundamentally to meet evolving data exchange
requirements of WMO Programmes other than the WWW. The IMTN
project has been promoting the reform of the MTN capability as a
genuine network since its commencement in 1999.
Reform concepts are:
(1) to provide capability and flexibility to meet new and future
requirements by using technical innovation;
(2) to seek cost-effectiveness with appropriate reliability and security;
(3) to challenge establishment of a collaborative contractual
framework;
(4) to keep up with an appropriate pace for implementation, i.e.
“early implementation leads early benefits.”
A point of implementation strategy is the evolution
from bilateral physical circuits
to logical connections through seamless network “cloud”.
Status of the IMTN project
The current IMTN is structured with two “clouds” of Frame Relay
network services.
• 17 of 25 MTN circuits are in operation on the Clouds.
• 12 of 18 MTN centers participate in the Clouds.
Cloud I
Tokyo
Melbourne
Washington
Buenos Aires
Brasilia
Beijing
Sofia
Moscow
Prague
Exeter
Jeddah
Offenbach
Cloud II
Nairobi
Toulouse
Dakar
New Delhi
Algiers
Cairo
Details of Cloud I
• Logical connections (PVC: Permanent Virtual Circuit) through BT
Frame Relay network
• Configuration of asymmetric bandwidths by CIR (Committed
Information Rate) for unbalanced traffic conditions
• Arrangement of backup re-routing with a dynamic routing protocol
(BGP-4)
Washington
1.5Mbps
Access circuit
1.5Mbps
32k
768k
32k
Tokyo
16k
4k
256kbps
Disaster Recovery Site
32k
32k
BT Frame Relay 16k
32k
16k
Brisbane
4k 16k
32k
16k
64k
64k
256kbps
Melbourne
Exeter
256kbps
Primary PVC
BoM Backup PVC
CIR in each direction
[bps]
Unbalanced traffic and asymmetric CIRs (Cloud I)
25 Mbytes/day
55% of CIR
CIR=32kbps
CIR=768kbps
Tokyo
1.5Mbps
FR
Washington
1.5Mbps
40% of CIR
Each pays for
its local access circuit
and an incoming CIR
1076 Mbytes/day
Backup Re-routing (Cloud I)
Washington
Cloud I
Tokyo
Link failure
BGP-4
Melbourne
Traffic on
normal condition
BGP-4
Bypass traffic
for backup
Details of Cloud II
• PVCs through OBS (Orange Business Service, former EQUANT)
Frame Relay network under expansion of the European contract
• Centralized network monitoring by ECMWF & Consumer Premise
Equipment (CPE, Cisco Router) managed by OBS
• Configuration of asymmetric bandwidths by CIR
Moscow
Beijing
Tokyo
New Delhi
CPE
CPE
128
kbps
64kbps
256kbps
256kbps
16k
16k
16k 8k
48k 96k
8k
32k
Cloud II
By OBS
CPE
CPE
CPE
256kbps
64k
48k
Sofia
32k
16k 8k
CPE
512kbps
8k
Prague
8k
128k
384k
512kbps
CPE
Exeter
64k
64kbps
1024
kbps
CPE
CPE
Jeddah
Offenbach
2048
kbps
CPE
Toulouse
Collaborative contract (Cloud II)
Customer
representative
(ECMWF)
Network service
provider
(OBS)
Master
Contract
Accession
Agreement
Network
monitoring
Helpdesk
Regional network in Europe
(RMDCN in Region VI)
Accession
Agreement
Accession
Agreement
IMTN Cloud II
Accession
Agreement
Accession
Agreement
Accession
Agreement
Benefits of IMTN
The implementation of the IMTN brings various benefits:
(1) further reliability
stable operation for real-time data exchange
(2) better performance in throughput
exchange of large volume of data such as satellite data/products
(3) manageable link parameters
efficient configuration to meet traffic conditions
(4) flexibility and scalability
easy compliance with evolving requirements
(5) cost-effectiveness
saving recurrent costs
Market trends of global managed data network services
• Migration from leased circuit, ATM and Frame Relay services to
MPLS/IP-VPN (Multi Protocol Label Switching/IP-Virtual Private Network)
is remarkable.
• Layer 2 switching VPN is one of next-generation WAN services but
premature in market.
[billion US$]
140
Retail scale of global WAN services
120
Estimation
Leased circuit
ATM/Cell Relay
Frame Relay
MPLS/IP-VPN
Layer 2 VPN
100
80
60
40
20
0
2003
2004
2005
2006
2007
2008
[year]
Market share of Tier-1 global network operators
Market leaders : Equant (OBS at present), AT&T and BT/BT Infonet
Their strategies:
• Extending service coverage by establishing new MPLS PoPs
(Points of Presence)
• Bilateral partnerships with national and regional telecom carriers
for MPLS interoperability outside of their footprints
Fast-growth markets : Asia and Eastern Europe
Equant
(present: OBS)
12%
SI/IT outsourcers
37%
AT&T
12%
BT/BT Infonet
11%
Other
network
operators
15%
Global WAN service share (2nd quarter of 2005)
MCI
7%
Sprint
1%
Cable & Wireless
2%
T-Systems
2%
NTT Communications
1%
MPLS/IP-VPN
MPLS/IP-VPN is one of most promising WAN services.
IP
IP Label
VPN
group
IP Label
IP
Core Router
CE
PE
Closed
IP network
by a provider
VPN group
CE
PE
Core Router
PE
CE
CE
Core Router
Provider’s PEs and Core Routers based on MPLS have Label Tables and switch IP packets forward
according to the Tables.
CE : Customer Edge Router
PE : Provider Edge Router
VPN : Virtual Private Network
MPLS : Multi Protocol Label Switching
Future of IMTN
MPLS/IP-VPN
GTS
IMTN
WIS
core network
Frame Relay
End of
2007
Cloud I
Early
2007
MPLS/IP-VPN
Frame Relay
Cloud II
Study of possibility of
consolidation of two Clouds
Coordination
For further improvement, migration from Frame Relay to MPLS/IP-VPN is
planned. MPLS/IP-VPN service provides:
• flexibility of mesh connectivity among GISCs
• additional bandwidth.
The IMTN would function as a WIS core network
linking a small number of GISCs together.
Slide 15
IMTN and managed data network services
Hiroyuki ICHIJO (Japan Meteorological Agency
Technical Conference on the WIS (Seoul, 6-8 November 2006)
MTN configuration
The Main Telecommunication Network (MTN) interconnects 6 Regional
Meteorological Telecommunication Networks (RMTNs) as a core of the GTS.
The MTN consists of 18 MTN Centres and 25 connections.
Region VI
Region I
Region II
Region V
Region IV
Region III
Strategies to improve the GTS
• Expanding bandwidth
• Flexible connectivity
• Saving recurrent cost
Use of
cost-effective
network services
Leased circuits
• Internet like applications
• Saving implementation costs
and human resources
• allowing latitude in selecting
a network service
Improved GTS
Migration to
TCP/IP
Legacy protocols
Strengthen the overall GTS capabilities
with cost-effectiveness and technical trends
Strategies
Traditional GTS
Layer separation approach to the improved GTS
File transfer
Adding applications
Server/client
Migration to TCP/IP
Application layer
Message
Switching
TCP/IP
Legacy protocol
File transfer
Server/client
Transmission
protocol layer
Frame Relay
Use of network services
IP-VPN
Transport layer
Message
Switching
TCP/IP
Legacy protocol
Concepts of IMTN
The CBS, at its 1998 extra-ordinary session, stressed that the MTN
shall be reviewed fundamentally to meet evolving data exchange
requirements of WMO Programmes other than the WWW. The IMTN
project has been promoting the reform of the MTN capability as a
genuine network since its commencement in 1999.
Reform concepts are:
(1) to provide capability and flexibility to meet new and future
requirements by using technical innovation;
(2) to seek cost-effectiveness with appropriate reliability and security;
(3) to challenge establishment of a collaborative contractual
framework;
(4) to keep up with an appropriate pace for implementation, i.e.
“early implementation leads early benefits.”
A point of implementation strategy is the evolution
from bilateral physical circuits
to logical connections through seamless network “cloud”.
Status of the IMTN project
The current IMTN is structured with two “clouds” of Frame Relay
network services.
• 17 of 25 MTN circuits are in operation on the Clouds.
• 12 of 18 MTN centers participate in the Clouds.
Cloud I
Tokyo
Melbourne
Washington
Buenos Aires
Brasilia
Beijing
Sofia
Moscow
Prague
Exeter
Jeddah
Offenbach
Cloud II
Nairobi
Toulouse
Dakar
New Delhi
Algiers
Cairo
Details of Cloud I
• Logical connections (PVC: Permanent Virtual Circuit) through BT
Frame Relay network
• Configuration of asymmetric bandwidths by CIR (Committed
Information Rate) for unbalanced traffic conditions
• Arrangement of backup re-routing with a dynamic routing protocol
(BGP-4)
Washington
1.5Mbps
Access circuit
1.5Mbps
32k
768k
32k
Tokyo
16k
4k
256kbps
Disaster Recovery Site
32k
32k
BT Frame Relay 16k
32k
16k
Brisbane
4k 16k
32k
16k
64k
64k
256kbps
Melbourne
Exeter
256kbps
Primary PVC
BoM Backup PVC
CIR in each direction
[bps]
Unbalanced traffic and asymmetric CIRs (Cloud I)
25 Mbytes/day
55% of CIR
CIR=32kbps
CIR=768kbps
Tokyo
1.5Mbps
FR
Washington
1.5Mbps
40% of CIR
Each pays for
its local access circuit
and an incoming CIR
1076 Mbytes/day
Backup Re-routing (Cloud I)
Washington
Cloud I
Tokyo
Link failure
BGP-4
Melbourne
Traffic on
normal condition
BGP-4
Bypass traffic
for backup
Details of Cloud II
• PVCs through OBS (Orange Business Service, former EQUANT)
Frame Relay network under expansion of the European contract
• Centralized network monitoring by ECMWF & Consumer Premise
Equipment (CPE, Cisco Router) managed by OBS
• Configuration of asymmetric bandwidths by CIR
Moscow
Beijing
Tokyo
New Delhi
CPE
CPE
128
kbps
64kbps
256kbps
256kbps
16k
16k
16k 8k
48k 96k
8k
32k
Cloud II
By OBS
CPE
CPE
CPE
256kbps
64k
48k
Sofia
32k
16k 8k
CPE
512kbps
8k
Prague
8k
128k
384k
512kbps
CPE
Exeter
64k
64kbps
1024
kbps
CPE
CPE
Jeddah
Offenbach
2048
kbps
CPE
Toulouse
Collaborative contract (Cloud II)
Customer
representative
(ECMWF)
Network service
provider
(OBS)
Master
Contract
Accession
Agreement
Network
monitoring
Helpdesk
Regional network in Europe
(RMDCN in Region VI)
Accession
Agreement
Accession
Agreement
IMTN Cloud II
Accession
Agreement
Accession
Agreement
Accession
Agreement
Benefits of IMTN
The implementation of the IMTN brings various benefits:
(1) further reliability
stable operation for real-time data exchange
(2) better performance in throughput
exchange of large volume of data such as satellite data/products
(3) manageable link parameters
efficient configuration to meet traffic conditions
(4) flexibility and scalability
easy compliance with evolving requirements
(5) cost-effectiveness
saving recurrent costs
Market trends of global managed data network services
• Migration from leased circuit, ATM and Frame Relay services to
MPLS/IP-VPN (Multi Protocol Label Switching/IP-Virtual Private Network)
is remarkable.
• Layer 2 switching VPN is one of next-generation WAN services but
premature in market.
[billion US$]
140
Retail scale of global WAN services
120
Estimation
Leased circuit
ATM/Cell Relay
Frame Relay
MPLS/IP-VPN
Layer 2 VPN
100
80
60
40
20
0
2003
2004
2005
2006
2007
2008
[year]
Market share of Tier-1 global network operators
Market leaders : Equant (OBS at present), AT&T and BT/BT Infonet
Their strategies:
• Extending service coverage by establishing new MPLS PoPs
(Points of Presence)
• Bilateral partnerships with national and regional telecom carriers
for MPLS interoperability outside of their footprints
Fast-growth markets : Asia and Eastern Europe
Equant
(present: OBS)
12%
SI/IT outsourcers
37%
AT&T
12%
BT/BT Infonet
11%
Other
network
operators
15%
Global WAN service share (2nd quarter of 2005)
MCI
7%
Sprint
1%
Cable & Wireless
2%
T-Systems
2%
NTT Communications
1%
MPLS/IP-VPN
MPLS/IP-VPN is one of most promising WAN services.
IP
IP Label
VPN
group
IP Label
IP
Core Router
CE
PE
Closed
IP network
by a provider
VPN group
CE
PE
Core Router
PE
CE
CE
Core Router
Provider’s PEs and Core Routers based on MPLS have Label Tables and switch IP packets forward
according to the Tables.
CE : Customer Edge Router
PE : Provider Edge Router
VPN : Virtual Private Network
MPLS : Multi Protocol Label Switching
Future of IMTN
MPLS/IP-VPN
GTS
IMTN
WIS
core network
Frame Relay
End of
2007
Cloud I
Early
2007
MPLS/IP-VPN
Frame Relay
Cloud II
Study of possibility of
consolidation of two Clouds
Coordination
For further improvement, migration from Frame Relay to MPLS/IP-VPN is
planned. MPLS/IP-VPN service provides:
• flexibility of mesh connectivity among GISCs
• additional bandwidth.
The IMTN would function as a WIS core network
linking a small number of GISCs together.
Slide 16
IMTN and managed data network services
Hiroyuki ICHIJO (Japan Meteorological Agency
Technical Conference on the WIS (Seoul, 6-8 November 2006)
MTN configuration
The Main Telecommunication Network (MTN) interconnects 6 Regional
Meteorological Telecommunication Networks (RMTNs) as a core of the GTS.
The MTN consists of 18 MTN Centres and 25 connections.
Region VI
Region I
Region II
Region V
Region IV
Region III
Strategies to improve the GTS
• Expanding bandwidth
• Flexible connectivity
• Saving recurrent cost
Use of
cost-effective
network services
Leased circuits
• Internet like applications
• Saving implementation costs
and human resources
• allowing latitude in selecting
a network service
Improved GTS
Migration to
TCP/IP
Legacy protocols
Strengthen the overall GTS capabilities
with cost-effectiveness and technical trends
Strategies
Traditional GTS
Layer separation approach to the improved GTS
File transfer
Adding applications
Server/client
Migration to TCP/IP
Application layer
Message
Switching
TCP/IP
Legacy protocol
File transfer
Server/client
Transmission
protocol layer
Frame Relay
Use of network services
IP-VPN
Transport layer
Message
Switching
TCP/IP
Legacy protocol
Concepts of IMTN
The CBS, at its 1998 extra-ordinary session, stressed that the MTN
shall be reviewed fundamentally to meet evolving data exchange
requirements of WMO Programmes other than the WWW. The IMTN
project has been promoting the reform of the MTN capability as a
genuine network since its commencement in 1999.
Reform concepts are:
(1) to provide capability and flexibility to meet new and future
requirements by using technical innovation;
(2) to seek cost-effectiveness with appropriate reliability and security;
(3) to challenge establishment of a collaborative contractual
framework;
(4) to keep up with an appropriate pace for implementation, i.e.
“early implementation leads early benefits.”
A point of implementation strategy is the evolution
from bilateral physical circuits
to logical connections through seamless network “cloud”.
Status of the IMTN project
The current IMTN is structured with two “clouds” of Frame Relay
network services.
• 17 of 25 MTN circuits are in operation on the Clouds.
• 12 of 18 MTN centers participate in the Clouds.
Cloud I
Tokyo
Melbourne
Washington
Buenos Aires
Brasilia
Beijing
Sofia
Moscow
Prague
Exeter
Jeddah
Offenbach
Cloud II
Nairobi
Toulouse
Dakar
New Delhi
Algiers
Cairo
Details of Cloud I
• Logical connections (PVC: Permanent Virtual Circuit) through BT
Frame Relay network
• Configuration of asymmetric bandwidths by CIR (Committed
Information Rate) for unbalanced traffic conditions
• Arrangement of backup re-routing with a dynamic routing protocol
(BGP-4)
Washington
1.5Mbps
Access circuit
1.5Mbps
32k
768k
32k
Tokyo
16k
4k
256kbps
Disaster Recovery Site
32k
32k
BT Frame Relay 16k
32k
16k
Brisbane
4k 16k
32k
16k
64k
64k
256kbps
Melbourne
Exeter
256kbps
Primary PVC
BoM Backup PVC
CIR in each direction
[bps]
Unbalanced traffic and asymmetric CIRs (Cloud I)
25 Mbytes/day
55% of CIR
CIR=32kbps
CIR=768kbps
Tokyo
1.5Mbps
FR
Washington
1.5Mbps
40% of CIR
Each pays for
its local access circuit
and an incoming CIR
1076 Mbytes/day
Backup Re-routing (Cloud I)
Washington
Cloud I
Tokyo
Link failure
BGP-4
Melbourne
Traffic on
normal condition
BGP-4
Bypass traffic
for backup
Details of Cloud II
• PVCs through OBS (Orange Business Service, former EQUANT)
Frame Relay network under expansion of the European contract
• Centralized network monitoring by ECMWF & Consumer Premise
Equipment (CPE, Cisco Router) managed by OBS
• Configuration of asymmetric bandwidths by CIR
Moscow
Beijing
Tokyo
New Delhi
CPE
CPE
128
kbps
64kbps
256kbps
256kbps
16k
16k
16k 8k
48k 96k
8k
32k
Cloud II
By OBS
CPE
CPE
CPE
256kbps
64k
48k
Sofia
32k
16k 8k
CPE
512kbps
8k
Prague
8k
128k
384k
512kbps
CPE
Exeter
64k
64kbps
1024
kbps
CPE
CPE
Jeddah
Offenbach
2048
kbps
CPE
Toulouse
Collaborative contract (Cloud II)
Customer
representative
(ECMWF)
Network service
provider
(OBS)
Master
Contract
Accession
Agreement
Network
monitoring
Helpdesk
Regional network in Europe
(RMDCN in Region VI)
Accession
Agreement
Accession
Agreement
IMTN Cloud II
Accession
Agreement
Accession
Agreement
Accession
Agreement
Benefits of IMTN
The implementation of the IMTN brings various benefits:
(1) further reliability
stable operation for real-time data exchange
(2) better performance in throughput
exchange of large volume of data such as satellite data/products
(3) manageable link parameters
efficient configuration to meet traffic conditions
(4) flexibility and scalability
easy compliance with evolving requirements
(5) cost-effectiveness
saving recurrent costs
Market trends of global managed data network services
• Migration from leased circuit, ATM and Frame Relay services to
MPLS/IP-VPN (Multi Protocol Label Switching/IP-Virtual Private Network)
is remarkable.
• Layer 2 switching VPN is one of next-generation WAN services but
premature in market.
[billion US$]
140
Retail scale of global WAN services
120
Estimation
Leased circuit
ATM/Cell Relay
Frame Relay
MPLS/IP-VPN
Layer 2 VPN
100
80
60
40
20
0
2003
2004
2005
2006
2007
2008
[year]
Market share of Tier-1 global network operators
Market leaders : Equant (OBS at present), AT&T and BT/BT Infonet
Their strategies:
• Extending service coverage by establishing new MPLS PoPs
(Points of Presence)
• Bilateral partnerships with national and regional telecom carriers
for MPLS interoperability outside of their footprints
Fast-growth markets : Asia and Eastern Europe
Equant
(present: OBS)
12%
SI/IT outsourcers
37%
AT&T
12%
BT/BT Infonet
11%
Other
network
operators
15%
Global WAN service share (2nd quarter of 2005)
MCI
7%
Sprint
1%
Cable & Wireless
2%
T-Systems
2%
NTT Communications
1%
MPLS/IP-VPN
MPLS/IP-VPN is one of most promising WAN services.
IP
IP Label
VPN
group
IP Label
IP
Core Router
CE
PE
Closed
IP network
by a provider
VPN group
CE
PE
Core Router
PE
CE
CE
Core Router
Provider’s PEs and Core Routers based on MPLS have Label Tables and switch IP packets forward
according to the Tables.
CE : Customer Edge Router
PE : Provider Edge Router
VPN : Virtual Private Network
MPLS : Multi Protocol Label Switching
Future of IMTN
MPLS/IP-VPN
GTS
IMTN
WIS
core network
Frame Relay
End of
2007
Cloud I
Early
2007
MPLS/IP-VPN
Frame Relay
Cloud II
Study of possibility of
consolidation of two Clouds
Coordination
For further improvement, migration from Frame Relay to MPLS/IP-VPN is
planned. MPLS/IP-VPN service provides:
• flexibility of mesh connectivity among GISCs
• additional bandwidth.
The IMTN would function as a WIS core network
linking a small number of GISCs together.