The 2nd International OFC/NFOEC Workshop on the Future of Optical Networking (FON)
Ballroom C, Anaheim Convention Center, Anaheim, CA, USA
Sunday 25th March 2007
Photonic Service Gateways
in the Japan's Lambda Utility Project
March 25, 2007
Soichiro Araki
System Platforms Research Laboratories,
NEC Corporation, JAPAN
Trend of Optical Transmission Technologies
Networking technologies evolve beyond Moore’s law.
WDM technologies
Ultra high speed optical interface technologies
10T
Total Capacity (bit/s)
100Gx140
40Gx273
40Gx160
100G?
10Gx160
1T
WDM
Moore’s Law
(double by 18 month)
100G
10G
40G
10Gx32
100G
2.5Gx16
40G Commercial
system
2.4G
10G
400M
1G
1.6G
TDM
Gilders Law
(triples by 12 month)
year
100M
1980
1985
1990
1995
2000
2005
???
Study Group on Ubiquitous Networking, Ministry of Internal Affairs and Communications
Ｐage 2
Copyright © 2007 NEC Corporation All Rights Reserved
Bandwidth management
by Photonic Packet
Evolution of Photonic Networks
Lambda utility project
•User control
•More scalability
•More bandwidth
Photonic packet
switching network
Dynamic
Operation
Controllability of
Photonic Network
Photonic label
switching network
Optical mesh network
based on OXC
Static
Operation
WDM ring network
based on OADM
Point-to-point WDM
transmission
2001
2005
OADM: Optical Add/Drop Multiplexer
OXC: Optical Cross-connect
2010∼
Photonic network revolution, Photonic Internetworking Forum, 2002
Ｐage 3
Copyright © 2007 NEC Corporation All Rights Reserved
On-demand Lambda Connection
• Bandwidth-rich applications
– Grid computing
– Real-time streaming: digital cinema, medical, education
– e-Commerce: Network storage
• Lambda connection anywhere on demand
through customer-initiative
High Performance
Computing
High Capacity Storage
for Streaming Contents
Local Area Network
Wide Area Network
Server Cluster
Ｐage 4
Copyright © 2007 NEC Corporation All Rights Reserved
Super High Definition
Video Streaming
GRID Computing
Government-supported Photonic Network R&D Program in Japan
4 major projects supported by the Ministry of Internal Affairs and
Communications (MIC) and National Institute of Information and
Communications Technology (NICT) Japan
Photonic node with multiple granularity switching capability
•100 Tera-bps class photonic nodes
•Peta-bps class backbone networks control
Lambda Access
•Terabit LAN in geographical scale
•Network access at 100Gbps and beyond with single or multiple lambda interfaces
Lambda Utility
•Controlling and managing an optical path over multiple carrier networks with high
scalability of more than 1000 nodes
•Highly-spectral-efficient transmission link technology at 100Gbps and beyond
•Modulation-format-independent all-optical 3R technology at 100Gbps and beyond
Optical RAM for all-optical packet switching
•Ultra-fast optical random access memory based on nano-structured optical devices
Ｐage 5
Copyright © 2007 NEC Corporation All Rights Reserved
Lambda Utility Project
Member organizations
NEC Corporation,
Osaka University,
Fujitsu Limited,
Mitsubishi Electric Corporation,
Oki Electric Industry Co., Ltd.
Project period
Started in September, 2006.
Five-year project (FY2006 to FY2010)
Ｐage 6
Copyright © 2007 NEC Corporation All Rights Reserved
Lambda Utility Project
Borderless Optical Path Control and Management Technology
- Photonic service gateway technology controlling and managing an optical path
over multiple carrier networks with high scalability of more than 1000 nodes
Highly-spectral-efficient Transmission Link Technology
- Multi-level modulation and demodulation technology at 100Gbps and beyond
- High-coding-gain forward error correction code for multi-level modulation format
High Performance
Computing
High Capacity Storage for
Streaming Contents
Photonic
Service
Gateway
Photonic
Service
Gateway
Photonic
Terabit-class
Service
LAN
Gateway
Wide Area Networks
Terabit-class
LAN
Super High
Definition Video
Streaming
GRID Computing
Server Cluster
Ｐage 7
Modulation-format-independent All-optical 3R Technology
- All-optical signal regeneration technology for both phase and
intensity modulation format signals at 100Gbps and beyond
Copyright © 2007 NEC Corporation All Rights Reserved
Photonic Service Gateway
Borderless Optical Path
Control and Management
Technology
Network Management System
Photonic Service
Gateway
Path Computation Element (PCE)
Control
I/F
Control Channel
GMPLS
LAN quality
information
Signaling, Routing
WAN quality
information
WAN quality
information
Optical path
performance
monitor
LAN
Interface
LAN
Interface
LAN
Interface
LAN
Interface
LAN
Interface
Optical path load balancer
LAN
Interface
LAN
Interface
Service provider
WAN
Interface
Service provider
WAN
Interface
WAN
Long distance
100Gbps Link
WAN
Interface
(100Gbps I/F)
WAN
Interface
WAN
Interface
WAN
Interface
WAN
Interface
(100Gbps I/F)
WAN
Interface
Optical path load balancer
Data
LAN quality
information
control
control
LAN
Interface
Control
I/F
GMPLS
LAN
Interface
LAN
Interface
LAN
Interface
LAN
Interface
LAN
Interface
LAN
Interface
LAN
Interface
LAN
Interface
All optical 3R
Terabit LAN
Ｐage 8
Highly-spectral-efficient
Transmission Link Technology
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Modulation-format-independent
All-optical 3R Technology
Terabit LAN
Borderless Optical Path Control and Management
GMPLS network
PCE: Path Computation Element
Service provider A
PCE
Service provider B
Data
High availability by
diverse path setting
over multiple carriers
Service provider C
PCE
Service provider D
Ｐage 9
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Control I/F
Terabit-class
LAN
Data
PCE
Easy to control quality of service
for end users
Network Abstraction
Network abstraction
Interface
・Topology
・Quality (bandwidth, availability)
・Control (path, network, protection and restoration)
Photonic Service
Gateway
Terabit-class
LAN
Photonic Service
Gateway
Control I/F
PCE
Network Management
System
•Multi domain routing
•PCE Interworking
•Control Scalability for more
than 1000 nodes
Borderless Optical Path Control and Management
Network abstraction interface
Optical path performance monitor and
control
Inter-domain path control, protection and
restoration
Cooperation between distributed control and
centralized management
Ｐage 10
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Network abstraction interface
Target
•Enable end users to control networks with simple parameters.
•Abstraction of network information, such as bandwidth, quality and
availability, which dynamically changes among Terabit-class LANs
•Establish network modeling technology, topology discovery technology,
network optimization technology in heterogeneous network environments.
Photonic Service Gateway
Terabit-class
LAN
Service provider
High capacity best-effort path
Service provider
Low cost path by dark fibers
・Topology information
・Bandwidth information
・Quality information
・Availability information
Optical path
demand
Terabit-class
LAN
: Photonic Service Gateway
Ｐage 11
Ultra long distance path
Service provider
Optical path with high
quality and high
reliability
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Terabit-class
LAN
Internet Data Center
Storage service
Optical path performance monitor and control
Target
•Achieve optical path performance monitoring at 100Gbps and beyond.
•Establish optical path load balancing over multiple carrier networks.
High precision phase
detect technology
Wide area network
10Gbps x Nch
Parallel I/F
All optical 3R
10Gbps x Nch
Parallel I/F
WAN I/F
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LAN quality
information
LAN
I/F
LAN
I/F
Lambda Access
100Gbps
WAN I/F
WAN quality
information
Optical path load
balancer
Long distance
100Gbps link
Wide area network
Ｐage 12
Optical path
performance
monitor
Establish load balance
algorithm for various
physical layers
Inter-domain path control, protection and restoration
Target
•Enable end users to choose an optimal protection mechanism automatically.
•Rapid path provisioning with a backup path across multi domains.
Path Computation Element (PCE)
Signaling for path setup
and restoration
GMPLS
LAN quality
information
WAN quality
information
Optical path
performance monitor
GMPLS
WAN quality
information
control
control
LAN
Interface
LAN
Interface
Service provider
WAN
Interface
Service provider
WAN
Interface
Long distance
100Gbps Link
WAN
Interface
(100Gbps I/F)
WAN
Interface
WAN
Interface
WAN
Interface
(100Gbps I/F)
WAN
Interface
All optical 3R
Ｐage 13
WAN
Interface
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Optical path load balancer
LAN
Interface
Optical path load balancer
LAN
Interface
LAN quality
information
LAN
Interface
LAN
Interface
LAN
Interface
LAN
Interface
Cooperation between distributed control and centralized management
Target
•Photonic network control and management for more than 1000 nodes.
•Establish scalable photonic network control and management architecture.
Network
management system
Network information
Distribution of path
computation demands
Path computation
element
Path computation demand
Path computation
element
Path computation demand
Inter domain information exchange
GMPLS
Signaling
TED
Optical
node
TED: Traffic
Engineering Database
TED
GMPLS
Optical
node
GMPLS
GMPLS
Optical
node
Optical
node
Path computation demand
Inter domain information exchange
TED
GMPLS
Optical
node
Different carrier domain
Signaling
GMPLS
GMPLS
Optical
node
Optical
node
Administrative boundary
Ｐage 14
Path computation
element
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Scalability in GMPLS network
Path setup time
10 sec
Multi-domain control
+ Distributed Path computation
elements
Single domain control
Core network
1 sec
Edge network
Scalability
improvement
10 nodes
100 nodes
1000 nodes
Number of nodes to be controlled
Ｐage 15
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GMPLS Scalability Evaluation
Control channel bandwidth dependencies of path setup time
50
512Kbit/s
40
1Mbit/s
30
2Mbit/s
Increases of control
channel bandwidth
20
10
10Mbit/s
5Mbit/s
0 50Mbit/s
0.1
1
Request Interval [sec]
64 nodes network
10
Path Setup Time [sec]
Path Setup Time [sec]
50
512Kbit/s
40
5Mbit/s
30
20
2Mbit/s
Increases of control
channel bandwidth
10
10Mbit/s
0 50Mbit/s
0.1
1
Request Interval [sec]
128 nodes network
Path setup time increases due to congestion
of control messages in a limited control
channel bandwidth.
Ｐage 16
Copyright © 2007 NEC Corporation All Rights Reserved
10
Issues for GMPLS scalability
Issue 1
Increase of nodes
Increase of TE information flooding
Issue 2
Multi domain routing scheme is
not established.
TED: Traffic Engineering Database
Bandwidth resource
information is flooded all
over the network.
TE information
flooding
TED
GMPLS
TED
Optical Path
Optical
node
TED
GMPLS
Optical
node
TED
パス終点
GMPLS
TED
Optical
node
GMPLS
GMPLS
Optical
node
TED
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Optical
node
TED
TED
GMPLS
Optical
node
Ｐage 17
TE information
flooding
Optical Path
GMPLS
GMPLS
Optical
node
Optical
node
Solutions for GMPLS scalability improvement
Solution 1
Multi domain routing
Reduce flooding information
Solution 2
Path computation elements
Establish information exchange scheme
for inter-domain routing
Distribution of path
computation demands
Path computation
element
Path computation demand
Path computation
element
Path computation demand
Inter domain information exchange
GMPLS
Optical
node
TED
TED: Traffic
Engineering Database
TED
GMPLS
Optical
node
GMPLS
GMPLS
Optical
node
Flooding of bandwidth
resource information is
limited within a domain.
Optical
node
Path computation demand
Inter domain information exchange
Path computation
element
TED
GMPLS
Optical
node
Reduction of flooding
information
Ｐage 18
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GMPLS
GMPLS
Optical
node
Optical
node
Summary
Lambda utility project is one of the governmentsupported photonic network R&D projects in Japan.
The project includes three research themes,
Borderless Optical Path Control and Management
Technology,
Highly-spectral-efficient Transmission Link Technology,
Modulation-format-independent All-optical 3R Technology.
These technologies will be implemented in a photonic
service gateway, and will provide lambda connection
anywhere on demand through customer-initiative.
Ｐage 19
Copyright © 2007 NEC Corporation All Rights Reserved
Acknowledgement
This work was partly supported by National
Institute of Information and Communications
Technology (NICT).
Ｐage 20
Copyright © 2007 NEC Corporation All Rights Reserved