Software-defined networking (SDN) is fast emerging as a significant building
block for next-generation carrier services and networks. The quick ascent of
SDN now has the telecom industry engaged in a bit of a scramble to assess
exactly what SDN is (and isn't), what its deployment will mean for carrier
networks, and how and where SDN will be used first in telecom networks.
SDN is an architectural concept that encompasses the programmability of
multiple network layers - including management, network services, control,
forwarding and transport planes - to optimize the use of network resources,
increase network agility, unleash service innovation, accelerate service
time-to-market, extract business intelligence and ultimately enable dynamic,
service-driven virtual networks.
The concept of SDN emerged as a major discussion topic in carrier circles
earlier this year and is now rapidly working its way into presentations and
other marketing material of numerous service providers, network solutions
suppliers and testing companies. Many established and new industry players
have offered opinions about what SDN is, why SDN is important and how SDN
Although a lot remains to be sorted out regarding SDN, it's critical at this
stage to gain a basic understanding of SDN and why it's viewed as a potential
game-changer for telecom networks. No doubt SDN is a topic that will require
significant research and analysis in the coming months.
‘SDN & the Future of the Telecom Ecosystem’ presents Heavy Reading's current
thinking regarding SDN from four specific perspectives:
- SDN in carrier transport networks (including the likely path of SDN
through the standards process)
- The importance of SDN and OpenFlow to optical networking
- The role of SDN in cloud-based services
- The use of SDN technology in carrier data centers to optimize application
Clearly, SDN is likely to have an impact on other parts of the telecom
ecosystem, but Heavy Reading has defined these four areas as the ones that
bear closest watching by its clients. Future reports will address other
aspects of SDN's role in the telecom ecosystem.
There is no common agreement among industry players about what SDN is and how
much of the network SDN applies to. Opinions generally fall into one of two
camps: a concept officially supported by the Open Networking Foundation (ONF)
that is centered on a centralized control plane, and a broader evolutionary
concept advocated by vendors within the IETF that encompasses software
programmability at multiple network layers.
Excerpt 1: ONF Perspective - Software-Defined Network Architecture
Conceptually, SDN possesses several core attributes that could be of
significant value in the process to redefine and optimize the data center. In
large part, this progression is driven by the recognition among carriers that
data centers need to become much more scalable and cost-efficient. There is
thus considerable interest in moving beyond software virtualization in a
standalone, single-site model, and leveraging a cloud-based model that not
only optimizes scalability exponentially, but also optimizes server resources
on a global vs. site-specific scale.
Excerpt 2: Traditional vs. Cloud Data Center
Source: Heavy Reading
Report Scope & Structure
‘SDN & the Future of the Telecom Ecosystem’ includes contributions from four
Heavy Reading senior analysts, each of whom offers a perspective on SDN as it
pertains to his or her technology coverage area.
Section I is an introduction to the report, with complete report key findings.
In Section II, Stan Hubbard focuses on SDN's likely role in telecom transport
In Section III, Sterling Perrin covers the implications of SDN and OpenFlow on
optical networking technology, with an emphasis on the future of the optical
control plane and GMPLS.
In Section IV, Caroline Chappell addresses the potential role of SDN in the
cloud services realm.
In Section V, Jim Hodges offers his views into SDN's potential role in carrier
SDN & the Future of the Telecom Ecosystem is published in PDF format.
Table of Contents
LIST OF FIGURES
I. INTRODUCTION & KEY FINDINGS
- 1.1. Key Findings
- 1.2. Report Scope & Structure
II. SDN IN CARRIER SERVICES & NETWORKS
- 2.1. SDNs Importance to Carrier Services & Networks
- 2.2. The Current Network Problem
- 2.3. Benefits of a New Architectural Approach
- 2.4. SDN Standards Activity
- Open Networking Forum
- 2.5. Current Status of SDN in Carrier Networks
- 2.6. Projected Development of SDN in Carrier Networks
III. THE IMPACT OF SDN ON OPTICAL TRANSPORT
- 3.1. The Importance of SDN/OpenFlow in Optical Transport
- 3.2. ASON/GMPLS Shortcomings
- 3.3. The Problem(s) With OpenFlow
- 3.4. An Alternate Evolution: Separating OpenFlow & SDN
- 3.5. Potential Impact of SDN on the Supplier Ecosystem
- 4.1. Why Is SDN Important to the Cloud?
- 4.2. SDN & Cloud Today
- 4.3. SDN &the Future of Cloud
- 4.4. Impact of SDN on the Cloud Supplier Ecosystem
- 5.1. The End of Autonomic Data Centers
- Finding Common Virtualized Ground: Application Control & Customization
- 5.2. Enhanced Policy & Routing
- 5.3. SDN Vendor Impacts - Hold the Secret Sauce?
- Market Equilibrium: Balance vs. Breakthrough
- Product Evolution Software Programmability & Pricing
APPENDIX A: ABOUT THE AUTHORS
APPENDIX B: LEGAL DISCLAIMER
LIST OF FIGURES
SECTION - I
SECTION - II
- Figure 2.1: ONE Perspective - Software-Defined Network Architecture
SECTION - III
- Figure 3.1: PCE vs. Legacy Control Plane Implementation
SECTION - IV
SECTION - V
- Figure 5.1: Traditional vs. Cloud Data Center
- Figure 5.2: SDN & Cloud Control Plane
- Figure 5.3: SDN Policy Rules Framework
SDN & the Future of the Telecom Ecosystem published by Heavy Reading in October 10, 2012. This report consists of 33 Pages and the price starts from US $ 3995.