& cplSiteName &

How Do You Get to SDN From Here?

Carol Wilson
2/12/2014
50%
50%

The Open Networking Foundation is taking on one of the trickier aspects of the move to virtualization, publishing a document that details migration strategies for the move to software-defined networking (SDN) in campus, service provider edge, and wide-area networks. (See ONF Offers Guidance On SDN Migration.)

Developed by the Open Networking Foundation Migration Working Group and published Tuesday, the aptly titled "Migration Use Cases and Methods" draws heavily on the experience of three SDN pioneers: Google (Nasdaq: GOOG), NTT Group (NYSE: NTT), and Stanford University , to offer best-practices and lessons learned from real-world deployments.

Among its core recommendations are the need for gap analysis to determine the impact the move to SDN will have on current services, creation of pre- and post-migration checklists to guide assessments of connectivity and service continuity checks, and well-documented back-out procedures that can be used "in case of unexpected results."

"We set this up as a framework for SDN deployment," says Justin Dustzadeh, chief technology officer and vice president of technology strategy at Huawei Technologies Co. Ltd. , and chair of the ONF Migration Working Group. The idea was to look closely at what the three SDN deployments had done and to come back with a pragmatic approach that can be used across the industry.

That approach is laid out in stages, Dustzadeh says, beginning with defining the core requirements of a target OpenFlow-based network, continuing with preparation for the rollout, then moving on to laying out the steps of a phased migration and making sure that at each stage there is a rollback mechanism. In the final and fourth stage, the service provider needs to test and verify the SDN-based services, as well as the impact of the move to SDN on its original services.

Different networks, different views
The working group specifically chose three deployments in different parts of the network: Stanford linked two campus buildings, NTT used OpenFlow to connect edge routers to an external control plane, and Google created its much-ballyhooed B4 wide-area network based on SDN. (See NTT Advances SDN and Google: SDN Works for Us.)

The document is the first product of a working group that was launched in April 2013 in response to very real concerns by ONF members that moving to SDN might require the impossible: ditching billions of dollars of investment in current networks.

"A lot of people were saying they didn't want to throw money away, and they needed to know how they get there from here," says Dan Pitt, ONF executive director. Existing working groups weren't directly addressing the migration challenge in a practical way.

Next up for the Migration Working Group is exploration of the specific software tools and metrics needed to support the process of migrating to SDN, with the goal of bringing the IT world's level of automation for software upgrade to the carrier space, says Dustzadeh.

Along the way, his group isn't specifically addressing how carriers build the business case for SDN migration, but it is providing greater information and insight that can be used in that regard, he says.

"We have ongoing studies to also address the cost, performance, and other aspects that might be relevant in the bigger picture of SDN migration," Dustzadeh says. "Today, most operators and CEOs and business decision makers are trying to find out what does it take, what is it going to cost me, and what is the long-term return on investment, not only for simplifying my network but also enabling me to introduce new services more quickly and efficiently."

— Carol Wilson, Editor-at-Large, Light Reading

(5)  | 
Comment  | 
Print  | 
Newest First  |  Oldest First  |  Threaded View        ADD A COMMENT
mhhf1ve
50%
50%
mhhf1ve,
User Rank: Light Sabre
2/23/2014 | 2:58:01 AM
Re: Will incumbents invest in SDN anytime soon?
My original point was that incumbent providers have to balance their existing investments against deploying new technologies. SDN will have an adoption rate that will depend on its ROI for each particular carrier.
mhhf1ve
50%
50%
mhhf1ve,
User Rank: Light Sabre
2/23/2014 | 2:53:04 AM
Re: Will incumbents invest in SDN anytime soon?
Seven, You make it sound like incumbents couldn't adopt SDN at nearly any reasonable speed due to having too many employees. But if SDN adoption could guarantee a hefty ROI, I'm sure the technical grunts that make up such a small fraction of a 100,000 person organization would all be told to drop whatever else they were doing to deploy SDN technologies ASAP.
brookseven
50%
50%
brookseven,
User Rank: Light Sabre
2/22/2014 | 10:41:36 AM
Re: Will incumbents invest in SDN anytime soon?
You guys talk about this like it is the incumbent's control. Imagine a company with 100,000 people. 10% or less are skilled technically. The rest follow detailed rules set out by those small few. The skilled have to figure out a way to mainstream the technology because the snotty nosed kids who showed up with it surely didn't. Those folks assumed that the most important thing that the Tier 1 carrier could do would be to turn their organization on its head to adopt this new, unproven technology. Rule 1 - Think about the problem from the customer's viewpoint. Seven
pcharles09
50%
50%
pcharles09,
User Rank: Light Beer
2/21/2014 | 9:44:13 PM
Re: Will incumbents invest in SDN anytime soon?
That's usually the trend when it comes to adopting new technology. OLd & big is hard to make "new" things happen. When you're lean & have less to lose, it's easier to try things out. If you fail, it hurts you less (relatively speaking).
mhhf1ve
50%
50%
mhhf1ve,
User Rank: Light Sabre
2/21/2014 | 7:07:51 PM
Will incumbents invest in SDN anytime soon?
It's been said more than a few times that incumbent service providers have little incentive to adopt disruptive/innovative technologies because they rely much more on squeezing every last drop of profit out of their existing infrastructure investments.

A recent interview with wireless pcell CEO, Steve Perlman, reminded me of this:

http://venturebeat.com/2014/02/20/steve-perlman-pcell-is-real-and-it-will-change-the-world-interview/2/

What I've learned the hard way is incumbents, just because of the priorities they have and the triages they have to make, they sometimes would rather sit on a technology that disrupts the established structure, rather than have something deployed. Very often I've found that companies know they can't move quickly to go and take advantage of some new technology because of their internal inertia.

So it wouldn't surprise me that migration to SDN might take some carriers a bit longer to do, especially if their current infrastructure investments are sizable. It's the smaller operators who will be more willing to try out SDN because they have less existing revenue to lose and more operating profitability to gain.

Educational Resources
sponsor supplied content
Educational Resources Archive
From The Founder
The more things change, the more they stay the same for Juniper's next-gen comms solutions, and that's a good thing.
Flash Poll
Live Streaming Video
Charting the CSP's Future
Six different communications service providers join to debate their visions of the future CSP, following a landmark presentation from AT&T on its massive virtualization efforts and a look back on where the telecom industry has been and where it's going from two industry veterans.
LRTV Custom TV
ZTE Pre5G & 5G Solutions

6|30|16   |   02:23   |   (0) comments


At 5G World London, ZTE demonstrated their Pre5G and 5G solutions, including their 128 antenna and two types of base stations.
LRTV Custom TV
Energy 2020: Technology Innovation to Fuel Power Efficiency

6|30|16   |   07:21   |   (0) comments


Managing energy costs and consumption as cable operators deploy new services requires new levels of innovation from technology partners. In this video, Dave Fellows, co-founder and CTO of Layer3 TV and chief scientist of the SCTE/ISBE Energy 2020 program, discusses such ambitious objectives as achieving a second 500% increase in efficiency in outside plant ...
LRTV Custom TV
Transitioning to Service Agile Networks

6|30|16   |     |   (0) comments


Packet optical networks are transitioning from proprietary converged systems to open disaggregated platforms. This video will describe the Fujitsu 1FINITY disaggregated platform, explore how 1FINITY interoperates with the Fujitsu FLASHWAVE platform and explain how 1FINITY is designed for software control, like with Fujitsu Virtuora NC.
Women in Comms Introduction Videos
Nokia's Advancement Plan: Bring Old Skills to New Roles

6|29|16   |   7:57   |   (1) comment


Nokia's Sandy Motley advises women to change their mindsets; get aggressive about advancing their careers; develop strong, diverse support networks; and always bring forth learned skills to take on new challenges and different roles.
Between the CEOs
CEO Chat: Cisco's Yvette Kanouff

6|28|16   |     |   (0) comments


In Silicon Valley, Steve Saunders sits down with Cisco's Yvette Kanouff for an exclusive in-depth interview.
LRTV Interviews
Comcast: Prepping Next-Gen Video Services

6|28|16   |     |   (0) comments


In this LRTV interview, Comcast's Elad Nafshi outlines where MSO stands with cloud DVR, OTT video, college and gigabit services.
LRTV Custom TV
Energy 2020: Creating Unique Standards for Cable's Unique Networks

6|28|16   |   09:30   |   (0) comments


Cable's unique network requirements require a specific set of standards for operators to increase power efficiency, according to Dan Cooper, vice president of critical infrastructure for Charter Communications and chair of the SCTE/ISBE Standards Program's Energy Management Subcommittee, and Ian Oliver, managing director of the Trenchant Group and a member of the ...
LRTV Custom TV
Masergy: 'Now Is the Time for NFV'

6|28|16   |     |   (0) comments


Hear Ray Watson, VP of Global Technology at Masergy, talk about the advantages that enterprises can leverage using Network Function Virtualization (NFV), and how Masergy takes a unique approach to solving customers' problems. For more information on Masergy, please visit www.masergy.com.
LRTV Custom TV
Masergy Leads the Charge With NFV Capabilities

6|28|16   |     |   (0) comments


Hear Tim Naramore, CTO at Masergy, talk about how focusing on solving specific customer challenges, providing self-service automation tools and being laser focused on the customer experience has enabled Masergy to be a leader in the NFV space. For more information on Masergy, please visit www.masergy.com.
LRTV Custom TV
Private Company of the Year - Affirmed Networks

6|27|16   |     |   (0) comments


At BCE 2016, Steve Saunders speaks to Hassan Ahmed about Affirmed's success.
LRTV Custom TV
Energy 2020: Growing Services, Not Consumption

6|24|16   |   07:18   |   (0) comments


Management of power requirements needs to be a key consideration as cable operators deploy new services, says Dan Cooper, vice president of critical infrastructure for Charter Communications and chair of the SCTE/ISBE Standards Program's Energy Management Subcommittee. In this video, Cooper discusses the importance of cable operators and technology partners ...
LRTV Huawei Video Resource Center
Huawei & TDC First to Launch DOCSIS 3.1 Trial in Europe

6|24|16   |     |   (0) comments


To meet the rising demands for high-speed broadband and to tackle fierce competition for 1.5 million household, TDC wanted to upgrade its network to use the latest technology. Using Huawei's DOCSIS 3.1 solution, TDC is now able to offer gigabit speeds to its customers.
Upcoming Live Events
September 13-14, 2016, The Curtis Hotel, Denver, CO
November 3, 2016, The Montcalm Marble Arch, London
November 30, 2016, The Westin Times Square, New York City
December 6-8, 2016,
May 16-17, 2017, Austin Convention Center, Austin, TX
All Upcoming Live Events
Infographics
A new survey conducted by Heavy Reading and TM Forum shows that CSPs around the world see the move to digital operations as a necessary part of their overall virtualization strategies.
Hot Topics
'Brexit' Vote Hits BT, Vodafone
Iain Morris, News Editor, 6/24/2016
Brexit: It's Hard to See an Upside
Ray Le Maistre, Editor-in-chief, 6/29/2016
Qualcomm Readies Lower-Band 5G Testbed
Dan Jones, Mobile Editor, 6/27/2016
Sigfox Said to Face Customer Backlash
Iain Morris, News Editor, 6/27/2016
Arista Could Face US Import Ban – Reports
Mitch Wagner, West Coast Bureau Chief, Light Reading, 6/23/2016
Like Us on Facebook
Twitter Feed
BETWEEN THE CEOs - Executive Interviews
In Silicon Valley, Steve Saunders sits down with Cisco's Yvette Kanouff for an exclusive in-depth interview.
At the BCE 2016 show in Austin, ECI Telecom CEO Darryl Edwards tells Light Reading founder and CEO about the Elastic Network concept and the company's NFV and cybersecurity developments.
Animals with Phones
Live Digital Audio

Our world has evolved through innovation from the Industrial Revolution of the 1740s to the information age, and it is now entering the Fourth Industrial Revolution, driven by technology. Technology is driving a paradigm shift in the way digital solutions deliver a connected world, changing the way we live, communicate and provide solutions. It can have a powerful impact on how we tackle some of the world’s most pressing problems. In this radio show, Caroline Dowling, President of Communications Infrastructure & Enterprise Computing at Flex, will join Women in Comms Director Sarah Thomas to discuss the impact technology has on society and how it can be a game-changer across the globe; improving lives and creating a smarter world. Dowling, a Cork, Ireland, native and graduate of Harvard Business School's Advanced Management Program, will also discuss her experience managing an international team focused on innovation in an age of high-speed change.