NTT Communications expects software defined networking (SDN) to help shorten time-to-market for new services, allow for more service differentiation, and reduce costs through automation and use of commodity hardware. It is testing OpenFlow switches and controllers between Japan and the US and collaborating with network and cloud controllers. SDN could help simplify networks, improve operations through one-stop control of physical and virtual resources, and allow distributed controllers to scale across a wide area network.

3. Expectation for SDN
as Carrier's Network
18ｔｈ Apr, 2012
Yukio Ito
NTT Communications

4. ü NTT Communications overview
ü Expectation for SDN
ü Global Cloud Vision
ü What We Do
ü Expectation for OpenFlow/SDN as a telecom carrier
ü Summary

5. 3©2012 NTT Communications Corp. and/or its Affiliates. All Rights Reserved.
100%
Systems Integration
100% 100% 66% 54%
Local Access（IP、Ether）
Voice（PSTN、VoIP）
MobileGlobal ICT Solution
Cloud Data Center
Global tier1 provider
IPX
n NTT (Nippon Telegraph and Telephone Corporation) is one of the world's largest providers of
information and communications services with fixed lines & mobile communications,
Internet, and systems integration services capabilities.
n Over 130 years of communications experience.
n Approximately 219,350 full-time employees, over 50 million clients and 756 subsidiaries and
affiliates worldwide.
100%
About NTT & NTT Group

6. 4©2012 NTT Communications Corp. and/or its Affiliates. All Rights Reserved.
FY2010 Financial Results (ended March 31st, 2011)
Operating Revenues $15.4 billion (1.25trillion yen)
Operating Income $1.21 billion (97.9 billion yen)
Employees 15,500 worldwide
n Established under the NTT Group in 1999
n Provides a broad range of global networks and IT management solutions to
customers worldwide, including managed networks, security, hosting, voice, data
and IP services
n Connection to major cities around the world via a Global Tier 1 IP Backbone (NTT
Communications Global IP network) and secure closed networks with over
100,000 MPLS ports
n Global cloud pioneer and first Tier 1 status provider in Asia
1. Conversion rate of JPN¥80.84 = US$1 (as of May 31st, 2011).
This conversion is for a reference purpose only.
2. The figures in the table above represent figures for NTT Communications Group
(NTT Communications and its subsidiaries) after adjustments and eliminations for intragroup transactions.
Note:
About NTT Communications (NTT Com)

7. 5©2012 NTT Communications Corp. and/or its Affiliates. All Rights Reserved.
ü NTT Communications overview
ü Expectation for SDN
ü Global Cloud Vision
ü What We Do
ü Expectation for OpenFlow/SDN as a telecom carrier
ü Summary

8. 6©2012 NTT Communications Corp. and/or its Affiliates. All Rights Reserved.
SDN（Software Defined Network）
• SDN(Software Defined Network): A New concept to realize network function by software
– Separate control plane and data plane
– Have flexibility on control plane
– OpenFlow protocol is an API to program data plane
• Expectation for SDN
– Shorten Time-to-Market
• Quickly introduce necessary function for a company by not depending on
vendor’s development roadmap or schedule
– Service differentiation
• Not bounded by commodity specification
→ Hard to differentiate by current Network due to similar equipments
– CAPEX・OPEX reduction
• CAPEX reduction by use of commodity hardware
• OPEX reduction by automation

9. 7©2012 NTT Communications Corp. and/or its Affiliates. All Rights Reserved.
ü NTT Communications overview
ü Expectation for SDN
ü Global Cloud Vision
ü What We Do
ü Expectation for OpenFlow/SDN as a telecom carrier
ü Summary

10. 8©2012 NTT Communications Corp. and/or its Affiliates. All Rights Reserved.
Toward realizing ICT that enables global management
Productivity Improvement
Business Continuity Plan
Cost reduction
Reinforce Sales
SaaS/Application
Global Network
Provide integrated services
Globalization
Faster decision-making
NTT Com’s Global Cloud Vision
Global virtualized Server
Global Data Center
Deploy comprehensive cloud services around the world
that are differentiated as a telecom carrier.
Provide not only the advantage area of NTT Com such as networks and data
centers but servers and applications, end-to-end and one-stop basis.
Global Cloud Vision

11. 9©2012 NTT Communications Corp. and/or its Affiliates. All Rights Reserved.
Public Cloud
Customer’s
System
<NTT Com Group> <Partners>
GlobalTotalManagement
One-Stop Operation
Other Cloud
Consulting firm/
Application Vendor
SaaS Vendor
Hybrid
Cloud
Virtualized Network
Multi network/ PC,
Smartphone, Tablet PC, etc.
Data Center
Ａｒｃｓｔａｒ Ｕｎｉｖｅｒｓａｌ Ｏｎｅ
Portal
Mail, Desktop, VoIP etc.
Managed Security Services
Consulting/Individual Applications
Private Cloud Provide
Hybrid Cloud
Cloud
Controller
DirectAccesstoCloud
DirectAccesstoCloud
Network
Controller
Integrated
Control
/Visualization
Access
Network/
Terminals
Physical
Network
Data
Center
Virtualized
Network
PaaS
/
IaaS
OSS
SaaS
Security
Consulting
and others
Partnering
Hybrid Cloud
Partnering
Partnering
Hybrid Cloud
Whole picture of the Cloud Vision

12. 10©2012 NTT Communications Corp. and/or its Affiliates. All Rights Reserved.
For intra-data center connectivity, system
modification requires complicated operation and
configuration.
After
Network
Controller
Data Center
Centralized and
automatic control
Data Center Data Center
Transport Network
Inter-Data Center
Virtualized NW
Virtualized NW
Virtualized NW
On demand and flexible configuration changes. (by
utilizing technologies such as OpenFlow).
Transport Network
Cloud Platform
(Virtualized servers)
Cloud Platform
(Virtualized servers)
Cloud Platform
(Virtualized servers)
Before
For inter-data center network, setup and
configuration is required before an event.
Virtualized network enables automated network
configuration changes.
Complicated configuration on
network appliances
Cloud Platform
(Virtualized servers)
Data Center
Firewall
Load Balancer
Benefit of Virtualized network

13. 11©2012 NTT Communications Corp. and/or its Affiliates. All Rights Reserved.
Provide auto-scale out function among Data Centers, and provide services which utilize NTT Com’s cloud
resources flexibly.
(Normally, auto-scale out function is limited inside of a Data Center)
Cloud
Controller
Data CenterData Center
Inter-Data Centers Scale out
Network
Controller
Interwork
Virtualized
Network
Cloud Platform (Virtualized
Servers)
Cloud Platform (Virtualized
Servers)
Inter-Data Center
Virtualized NW
Transport Network
Virtualized
Network
Auto-scale out among Date Centers
Service benefits through Cloud Vision
Backup

14. 12©2012 NTT Communications Corp. and/or its Affiliates. All Rights Reserved.
Make Everything from Network to server/application
Integrally Visible and Controlled
The Portal Websites provides unified controls from cloud to server/application, such as
status visualization, on-demand service order.
Status of Services＜Portal＞
Cloud
Controller
Network
Controller
Virtualized Network
Service benefits through Cloud Vision
Interworking Make the status of all services from cloud to network
integrally visible and controlled
- Visualization of contract or status of services
- Centralized management and control
(on-demand service order etc)
DC DC

15. 13©2012 NTT Communications Corp. and/or its Affiliates. All Rights Reserved.
ü NTT Communications overview
ü Expectation for SDN
ü Global Cloud Vision
ü What We Do
ü Expectation for OpenFlow/SDN as a telecom carrier
ü Summary

16. 14©2012 NTT Communications Corp. and/or its Affiliates. All Rights Reserved.
What we do #1
～OpenFlow test between Japan and USA～
OpenFlow Controller
OpenFlow Switch
Japan
OpenFlow Switch
We are testing OpenFlow Switch and OpenFlow Controller
between Japan and USA.
Transport Network
USA

17. 15©2012 NTT Communications Corp. and/or its Affiliates. All Rights Reserved.
Japan USA
What we do #2
～Collaboration with NW CTL and Cloud CTL～
Web Portal
User
Cloud Controller
（OpenStack Nova）
Network Controller
（OpenStack Quantum）
HV
OVS
HV
OVS
HV
OVS
・・・
HV
OVS
HV
OVS
HV
OVS
・・・
Network Controller
（OpenStack Quantum）
LB
VM VM
Internet/VPN
Tenant
FW LB
VM VM
Internet/VPN
Tenant
FW
Virtualized Data Center
Users can transfer
all components of
a tenant to a
different location
via block
migration.
Users can add VMs
to a tenant or
change resources
on a VM on
demand.
Users can create a
tenant at an
arbitrary site on
demand.

18. 16©2012 NTT Communications Corp. and/or its Affiliates. All Rights Reserved.
Demo
User
Migration between Japan and USA
Japan USA
Virtualized Data Center
Cloud Controller
（OpenStack Nova）
Network Controller
（OpenStack Quantum）
HV
OVS
HV
OVS
HV
OVS
・・・
HV
OVS
HV
OVS
HV
OVS
・・・
Network Controller
（OpenStack Quantum）
LB
VM VM
Internet/VPN
Tenant
FW

19. 17©2012 NTT Communications Corp. and/or its Affiliates. All Rights Reserved.
ü NTT Communications overview
ü Expectation for SDN
ü Global Cloud Vision
ü What We Do
ü Expectation for OpenFlow/SDN as a telecom carrier
ü Summary

20. 18©2012 NTT Communications Corp. and/or its Affiliates. All Rights Reserved.
Wide Area Network
Customer Premises/
Mobile Terminal
Cloud (Inside DC, DC to DC)
WAN Expansion
DC #A DC #B
User DC
HV
VMVM
HV
VM VM
SW
SW SW
SW SW
GW
HV HV
VMVM
HV
VMVM
SW
SW
SW
GW
PE PE
User Building User Premises
FW FW FW
Storage Storage

21. 19©2012 NTT Communications Corp. and/or its Affiliates. All Rights Reserved.
OpenFlow/SDN for WAN expansion
・Simplification of Network
・Efficient Operation
・Distributed Controllers (Information
synchronization)
・Scalability（Flow Aggregation, etc）
・Cost Control
・End-to-End QoS control
・Fault Management
■Discussion point

22. 20©2012 NTT Communications Corp. and/or its Affiliates. All Rights Reserved.
Simplification of Network
n Important issue on how to take control of increased management targets by virtualization
IP
Ethernet
SDH/OTN
DWDM
／Fiber
Overlaid ＮＷ function between layers
(Ex：Mux, Protection, Path Control, etc）
Typical past IP network configuration
L3
L2
L1
Operator

23. 21©2012 NTT Communications Corp. and/or its Affiliates. All Rights Reserved.
Efficient Operation
Physical NW
Layer
Physical Server
Physical Storage
Virtual NW
Virtual Server
n It is important issue that how to control increasing management targets by virtualization
Transmission
Layer
Operator
V/P
V/P
Physical NW
Layer
Physical Server
Physical Storage
Virtual NW
Virtual Server
Transmission
Layer
V/P
V/P
One-stop-control&
operation
Operator
Difficult to manage…
・Physical equipment management
・Virtual instance management
・Logical and Physical mapping
Physical
Virtual
Virtual &
Physical

24. 22©2012 NTT Communications Corp. and/or its Affiliates. All Rights Reserved.
Distributed Controllers (Information synchronization)
Scalability
Controller
Controller
Collaboration
Controller
n Distributed Controllers (Information synchronization) for WAN expansion
n Scalability
OFS
OFS
OFS
OFS
OFS
OFS
OFS
OFS OFS
OFS
OFS
OFS

25. 23©2012 NTT Communications Corp. and/or its Affiliates. All Rights Reserved.
ü NTT Communications overview
ü Expectation for SDN
ü Global Cloud Vision
ü What We Do
ü Expectation for OpenFlow/SDN as a telecom carrier
ü Summary

26. 24©2012 NTT Communications Corp. and/or its Affiliates. All Rights Reserved.
Summary
We would like to keep making a great effort for the development of
OpenFlow/SDN. We would like to have more discussion with all of
you.
• SDN(Software Defined Network):
－ A New concept to realize network function by software
• Expectation for SDN
– Shorten Time-to-Market
– Service differentiation
– CAPEX・OPEX reduction
and there are more comes through our discussions, I think. So,

27. 25©2012 NTT Communications Corp. and/or its Affiliates. All Rights Reserved.
Thank You!

28. 26©2012 NTT Communications Corp. and/or its Affiliates. All Rights Reserved.
NTT Communications’ Advantages
Our
Values
Tier-1 Global
Backbone
Asia-Pacific
Strength
Continuous
Quality
Improvement
High
Customer
Satisfaction
End-to-End
Managed
Services
Financial
Stability
Network
Performance
& Reliability
Pioneers in
Global cloud
vision