Light Reading

Two Faces of Distributed NFV

Carol Wilson
3/13/2014
100%
0%

In the era of virtualization, greater distinctions may develop between carriers and the services they offer as network operators adopt unique approaches to common service delivery concepts.

One example of how different priorities can influence deployments can already be seen in the instance of Distributed NFV, one of the proofs of concept being considered by the ETSI NFV Industry Specifications Group (ISG).

The idea of Distributed NFV was first publicized by RAD Data Communications Ltd. -- not that surprising as it manufactures customer premises gear. But as a PoC, it is a multi-vendor effort including Cyan Inc. , which is providing orchestration, as well as security vendors Fortinet Inc. and Certes, whose functions are being virtualized. (See ESDN: RAD Rolls Out Distributed NFV Strategy and MWC Offers Peek at NFV Projects.)

So what is Distributed NFV? In this iteration of functions virtualization, some functionality is located at the customer premises on an X86 blade that, for the PoC purposes, is part of RAD's box, which serves as the network interface device. Having some programmability at the customer premises, rather than locating all the intelligence within the network's core, creates different service possibilities.

The PoC sponsor, CenturyLink Inc. (NYSE: CTL), looks at Distributed NFV as an opportunity to advance its managed services strategy, says James Feger, VP of Network Strategy and Development.

"One of our challenges as a company is getting the functionality into the customer suite or customer premises with requests for services and features rapidly changing," he tells Light Reading. By creating a virtual gateway or virtual network interface device (NID) at the customer premises, there is the potential of having a remote resource that becomes part of the virtual service environment and can be programmed with different settings as services change or evolve.

"So things we might want to host in our facilities and data centers and [central offices], like firewall services, could be augmented by having some of that at the premises," he notes. "It's just a matter of which locale makes more sense for that specific function. If you look at something like application awareness, for instance, it could make more sense to have that inside the customer premises versus having it northbound in the network."

From CenturyLink's perspective, the distributed NFV option complements a broader virtualization strategy -- but the jury is still out on what functions best at the edge versus the core, and thus the need for the PoC.

Masergy moving ahead
By contrast, Masergy Communications Inc. , a competitive service provider also focused on managed services, sees Distributed NFV as something it can deploy now, for the express purpose of eliminating most of the hassles it currently faces with maintaining CPE.

"The way we look at something like NFV is that our customers don't really care what the technology is," say Tim Naramore, CTO. "They are pushing us to eliminate all the local premises functions for them, as quickly as possible."

Masergy wants to use Distributed NFV to eliminate multiple discrete boxes at the customer premises, and create cloud-based control of most functions, to eliminate the need to maintain that gear and keep it certified and up-to-date for compliance purposes, Naramore says.

"Having intelligence in a device on the premises and the ability to load VMs [virtual machines] on that and run things opens up a new breed of things for customers," Naramore says. "And they are pushing us to do this."

Both Naramore and Feger say there are things that can't be virtualized and distributed for multiple reasons.

It can also be argued that distributing functions using a vendor box such as RAD's falls short of the virtualization goal of using off-the-shelf hardware in a more 'open' approach, but as Heavy Reading Senior Analyst Caroline Chappell notes, there are practical reasons for considering both options.

"It makes sense to use what you've got instead of putting something completely new in place," she says. "And the actual functions are running on an X86 blade on [RAD's] box. Presumably, you can add anything that can run on an X86."

Having a common orchestration layer may satisfy enough of the "open" requirements that, if pushed further, become impractical.

"We've seen some rowing back in terms of how 'open' all this environment can be," she notes. "There is an argument that the openness is coming from that fact you are using a common service orchestration layer."

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

(10)  | 
Comment  | 
Print  | 
Newest First  |  Oldest First  |  Threaded View
reliaz074
50%
50%
reliaz074,
User Rank: Light Beer
3/17/2014 | 10:58:19 AM
things that can't be virtualized and distributed
An explanation of which functions must remain at the customer edge is found in RAD's D-NFV White Paper, which can be downloaded at http://www.rad.com/21/Distributed-Network-Functions-Virtualization-White-Paper/32548/
Dredgie
50%
50%
Dredgie,
User Rank: Light Sabre
3/14/2014 | 8:05:44 PM
Re: Love is in the air
>> maybe the nuance, here is the fact that the CPE is X86 – though I think even that was assumed in the long-circulating NFV 'use cases' document that includes CPE (i.e. STB & resi-gateway) and edge devices with separated forwarding / control planes.
Carol Wilson
50%
50%
Carol Wilson,
User Rank: Blogger
3/14/2014 | 2:21:40 PM
Re: Love is in the air
They didn't spell them out for the most part but since virtualization of network resources is keyed toward centralized software-based control of network gear, Distributed NFV actually represents the break from the norm, to push some things to the edge (security, for one) that belong there. Most functions are expected to be more centralized and not distributed. 

 
t.bogataj
50%
50%
t.bogataj,
User Rank: Light Sabre
3/14/2014 | 4:09:51 AM
Love is in the air
Carol,

Did Naramore and Feger name the "things that can't be virtualized and distributed", and why not?

T.
Carol Wilson
50%
50%
Carol Wilson,
User Rank: Blogger
3/13/2014 | 9:29:36 PM
Re: Two Faces of Distributed NFV
Mitch,

I think that is what CenturyLink is hoping to learn from the PoC - what is the reality and what are the real benefits. They are taking a very pragmatic approach.
DHagar
50%
50%
DHagar,
User Rank: Light Sabre
3/13/2014 | 6:34:35 PM
Two Faces of Distributed NFV
@FakeMitchWagner, key points, Mitch.  Don't you think the answer to that will be in finding the right solutions that will deliver a viable user experience that makes the managed services a seamless part of operations?    Easy to say but tough to do.  I think if the carriers can develop the right solutions they will have a winning proposition that will be sustainable.
Mitch Wagner
50%
50%
Mitch Wagner,
User Rank: Lightning
3/13/2014 | 6:04:47 PM
Re: Two Faces of Distributed NFV
Anything that increases flexiblity while reducing the need to locate equipment on customer premises is potentially a winner. The question is whether the reality will live up to the potential. 
DHagar
50%
50%
DHagar,
User Rank: Light Sabre
3/13/2014 | 5:50:00 PM
Two Faces of Distributed NFV
@Carol,  sounds like a very smart move!
Carol Wilson
50%
50%
Carol Wilson,
User Rank: Blogger
3/13/2014 | 5:44:30 PM
Re: Two Faces of Distributed NFV
Both of the service providers I spoke with saw this as an enhancement to what they can deliver through managed services, so network as a service is probably an apt description. 

 
DHagar
50%
50%
DHagar,
User Rank: Light Sabre
3/13/2014 | 4:58:00 PM
Two Faces of Distributed NFV
@Carol, Fascinating!  If I understand correctly, this is opening the door to a NaS (Network-as-Service) capability, which complements other shifts and movement towards virtualization.

That makes sense that some will provide the connectivity (networks and open or standardized systems) and others will focus on services. 

This again points to the user focus and the value technology delivers, more so than the technology itself.

 
Flash Poll
From The Founder
The New IP is actually bigger even than business. Like another hugely important tech that Light Reading is digging into right now, the New IP has the potential to change the world by fundamentally advancing what it is possible for people to achieve with communications.
LRTV Documentaries
The Three Cs of MWC15

3|2|15   |   2:33   |   (0) comments


My visit to this year's Mobile World Congress is going to dominated by three Cs – cloud, cells and coffee.
LRTV Huawei Video Resource Center
Huawei Shares Its Vision of the Future of Mobile Networks Innovations

2|26|15   |   2:30   |   (0) comments


Mobile broadband is changing our lives. It's reshaping the Internet, industry, and society. It allows us to freely connect with one another anytime, anywhere. At this year's Mobile World Congress, Huawei will share its latest insights and newest ideas and technologies that will shape the future of MBB. They will showcase their end-to-end MBB solutions that will ...
LRTV Huawei Video Resource Center
Accelerate Digitizing, Boost Digital Business

2|26|15   |   6:14   |   (0) comments


A new digital revolution is leading us to a better connected world. Together with millions of digital partners, Huawei will help CSPs to build their digital service ecosystem and aggregate a wide variety of digital services. In this video, we find out how Huawei is going to help CSPs implement digital operations.
LRTV Huawei Video Resource Center
The Secret Recipe to Enabling Hyper-Growth Industries

2|26|15   |   3:38   |   (0) comments


With a number of successful cases on network capability exposure, Huawei is going to share the secret recipe to enabling hyper-growth markets with a step-by-step approach.
LRTV Documentaries
BTE 2015 Is Bigger & Even Better

2|25|15   |   03:13   |   (4) comments


This year's Big Telecom Event (BTE) in Chicago is going to provide more opportunities than ever for networking, getting to grips with key industry challenges and opportunities and, equally as important, having some fun.
LRTV Interviews
Light Reading ICT Leaders Roundtable at MWC 2015

2|12|15   |   1:07   |   (2) comments


On Sunday March 1, 2015, Light Reading will host an ICT Leaders Roundtable in partnership with Huawei. At this half-day event, CIOs, analysts and researchers will discuss key industry trends like virtualization in the cloud with a specific focus on new business models. Located at the luxurious Renaissance Hotel near the Fira Barcelona, space is limited so please ...
LRTV Documentaries
Going Green in 2015

2|12|15   |   02:04   |   (0) comments


Energy efficiency is set to be an incredibly hot topic in the telecom industry this year.
LRTV Custom TV
SDN & NFV: Where Are We Going From Here?

2|11|15   |   11:27   |   (0) comments


Vitesse Semiconductor CTO Martin Nuss gives his perspective on why SDN and NFV should be tightly interconnected and how he sees the industry moving forward.
LRTV Documentaries
Time for Gigabit Europe?

2|9|15   |   01:27   |   (4) comments


Gigabit broadband networks are springing up all around the US and they'll soon become more commonplace in Europe.
LRTV Interviews
Brocade Brings New IP Vision to 2020 Vision Executive Summit

2|3|15   |   4:23   |   (0) comments


In December 2014, Light Reading gathered telecom executives in Reykjavik, Iceland to discuss their vision for high-capacity networks through the end of the decade. The intimate, interactive meeting was set against the backdrop of Iceland's spectacular natural beauty. As one of the event's founding sponsors, Brocade's Kelly Herrell shared his company's strategy at ...
LRTV Interviews
Brocade's Kelly Herrell on the New IP

2|2|15   |   12:36   |   (0) comments


In December 2014, Steve Saunders sat down with Brocade VP of Software Networking Kelly Herrell at Light Reading's 2020 Vision executive summit in Reykjavik, Iceland. They spoke about Brocade's approach to the New IP, the future of the telecom industry, and more.
LRTV Huawei Video Resource Center
Dr. Dong Sun Talks About Carriers' Digital Transformation & Huawei’s Telco OS

1|29|15   |   6:28   |   (0) comments


Dr. Dong Sun, Chief Architect of Digital Transformation Solutions at Huawei, discusses how telecom operators can become digital ecosystem enablers and deliver optimal user experiences that are in real-time, on-demand, all-online, DIY and social (ROADS).
Upcoming Live Events
March 17, 2015, The Cable Center, Denver, CO
April 14, 2015, The Westin Times Square, New York City, NY
May 12, 2015, Grand Hyatt, Denver, CO
May 13-14, 2015, The Westin Peachtree, Atlanta, GA
June 8, 2015, Chicago, IL
June 9-10, 2015, Chicago, IL
June 9, 2015, Chicago, IL
June 10, 2015, Chicago, IL
All Upcoming Live Events
Infographics
Net neutrality, broadband services and the current outlook on data consumption, as presented by the New Jersey Institute of Technology.
Hot Topics
10 Weirdly Useful IoT Devices
Eryn Leavens, Copy Desk Editor, 2/24/2015
Small Cells Enabling Location Services
Sarah Thomas, Editorial Operations Director, 2/25/2015
Verizon Takes Radio Dot to Detroit, VoLTE Overseas
Sarah Thomas, Editorial Operations Director, 2/27/2015
FCC Adopts Title II Rules
Alan Breznick, Cable/Video Practice Leader, 2/26/2015
Like Us on Facebook
Twitter Feed
Webinar Archive
BETWEEN THE CEOs - Executive Interviews
Check out Light Reading's interview with Jay Samit, the newly appointed CEO of publicly traded SeaChange International Inc. With a resume that includes Sony, EMI, and Universal, Samit brings a reputation as an entrepreneur and a disruptor to his new role at the video solutions company. Hear what he had to say about the opportunities in video, as well as the outlook for cable, telco, OTT and mobile service providers.
G'day! And welcome to an entirely new feature on Light Reading -- our weekly "CEO-to-CEO" interview.