& cplSiteName &

Report: DWDM No Match for Sonet

Light Reading
News Analysis
Light Reading
4/15/2003
50%
50%

Carriers are gradually starting to spend again, but the DWDM (dense wavelength-division multiplexing) market won't be heading upwards with any notable vigor, according to a new report from Insight Research Corp.

Instead, DWDM sales will lag those of Sonet/SDH equipment from now through at least 2008, according to forecasts in "Optical Networks: DWDM and SONET 2003 - 2008."

This isn't to say DWDM sales will drop out of sight -- or that Sonet/SDH is guaranteed to live forever. Thanks to recently developed OC48 (2.5 Gbit/s) and OC192 (10 Gbit/s) optical interfaces, routers now can hook directly to DWDM systems and save carriers the cost of optical-to-electrical conversion, the report says. Innovations also help, such as an "optical supervisory channel" that allows DWDM kit to match, at least in part, the much-touted management capabilities of Sonet equipment.

Unfortunately, though, a lack of traffic to justify buying high-speed interfaces in quantity, plus the optical bust of the last two years, have taken the wind out of DWDM research and development. "Contraction at the component level has slowed the wheel of innovation," says Robert Rosenberg, president of Insight Research. Without further infusion, it's unlikely DWDM gear will develop to the point where carriers will be motivated to swap it in place of existing Sonet gear.

One bright spot in the DWDM market is CWDM (coarse wavelength-division multiplexing), which is likely to be the sole source of growth for the technology in the near term. Indeed, metro deployments of CWDM are the only source of prosperity for optical gear right now, Rosenberg says.

While the Sonet market will return to its pre-boom levels over the next three years, carriers eventually will start to look more critically at Sonet's complexities compared with optical switching. But Sonet won't be widely replaced by DWDM anytime in the next decade.

— Mary Jander, Senior Editor, Light Reading

(18)  | 
Comment  | 
Print  | 
Newest First  |  Oldest First  |  Threaded View        ADD A COMMENT
Page 1 / 2   >   >>
Physical_Layer
50%
50%
Physical_Layer,
User Rank: Light Beer
12/5/2012 | 12:13:33 AM
re: Report: DWDM No Match for Sonet
Sorry - subject should have read 6 yrs rather than 10.
Physical_Layer
50%
50%
Physical_Layer,
User Rank: Light Beer
12/5/2012 | 12:13:33 AM
re: Report: DWDM No Match for Sonet
Who is really behind this research? Somebody out there actually is trying to suggest there will be nearly an order of magnitude increase in the use $$ volume of SONET gear over the next 5-6yrs? And I suppose that carriers will also have a 10x increase in their capital spending budgets too, right?
single mode figure
50%
50%
single mode figure,
User Rank: Light Beer
12/5/2012 | 12:13:32 AM
re: Report: DWDM No Match for Sonet
Who might get the benefit, Alcatel, remember caught in a french suit. They ought to run Alcatel and it's running dogs, out of Plano, back to France, where it belongs.
arch_1
50%
50%
arch_1,
User Rank: Light Beer
12/5/2012 | 12:13:27 AM
re: Report: DWDM No Match for Sonet
Perhaps I'm confused, but I thought that the bulk of SONET/SDH equipment was used to aggregate OC-3 up to higher rates, while DWDM is used to multiplex 2.5 and 10Gbps lambdas. These are complementary technologies for the most part.

The projected SONET/SDH growth still seems far too high. If new equipment follows Moore's law, then the 10x dollar growth in 6 years equates to 40x bandwidth growth in SONET. but sonet growth is constrained at the high end, since OC-48 and above can use DWDM directly, so 40x bandwidth growth translates roughtly into 40x growth in the number of OC-3s in the world. Where does this come from?
old_optical_guy
50%
50%
old_optical_guy,
User Rank: Light Beer
12/5/2012 | 12:13:22 AM
re: Report: DWDM No Match for Sonet
As far as I know DWDM and SONET are not the competiting technologies.
DWDM(Dense Wavelength Division Multiplexing) techniques may handle Optical Channels of different colours(wavelength) in the same fiber. Generally it can carry 32-64 optical channels in the same fibre.

DWDM can carry 32-64 channels of the SONET, or same number of OTN, or other technologies..

Can someone clarify more about the relevence of this Article....WHY DWDM and SONET ARE COMPETITING TECHNOLOGY..


Old_Optical_Guy
silenceofthelambdas
50%
50%
silenceofthelambdas,
User Rank: Light Beer
12/5/2012 | 12:13:21 AM
re: Report: DWDM No Match for Sonet
OOG wrote:
GǣAs far as I know DWDM and SONET are not the competiting technologies.
DWDM(Dense Wavelength Division Multiplexing) techniques may handle Optical Channels of different colours(wavelength) in the same fiber. DWDM can carry 32-64 channels of the SONET, or same number of OTN, or other technologies..
Can someone clarify more about the relevence of this Article....WHY DWDM and SONET ARE COMPETITING TECHNOLOGY.Gǥ

As you astutely point out, these are complementary technologies, with SONET/SDH being a physical layer DATA protocol, and DWDM being an efficient means of carrying many optical signals through the low-loss optical bandwidth region of common fiber. SONET can be carried over DWDM (I see it in action every workday). For newcomers (and journalists?), LR summarizes the role of each in optical networks:
SONET:
http://www.lightreading.com/do...
WDM:
http://www.lightreading.com/do...

The distinction between DWDM and SONET equipment in the Insight Research report revolves around the service providersG choice between reacting to increasing end-user bandwidth (and perhaps storage requirements) by either installing:
A) Legacy SONET interfaces, which can be very expensive-per-STS3, but are predictable, easy to acquire and manage; or
B) Terminals which allow direct connection from IP (or ATM) sources (routers) to DWDM OC48c/192c/GE blades + OSC (i.e. non-SONET), which can be cheaper and can make more effective use of fiber bandwidth in the years ahead.
Insight uses the label GǣDWDMGǥ to denote these non-SONET terminals, though they may not require DWDM technology at all. It is no surprise that the report, and its awkward summary by LR, inspired confusion.

As to the market forecasts for these types of equipment, the Insight report states: GǣAs the industry retools and recovers from the debacle of the last couple of years, the carriers still in business will be very conservative in their investment philosophy. This equates to continued reliance on SONET/SDH for the major network demands in spite of all the glowing advantages promoted for other choices.Gǥ (Insight Research)
I think that this was the conclusion that LR based the article headline on.

Another article snippet that caught my eye: GǣOne bright spot in the DWDM market is CWDMGǥ (Light Reading)
I think Ms. Jander meant reference to "the WDM market", as DWDM and CWDM are related but competing variants of WDM, with CWDM certainly NOT a component of the DWDM market (i.e. "Coarse" vs. "Dense", 2 vs 32, etc.). In fact CWDM-based products appear to be taking market share AWAY from that of DWDM equipment.

Seeking enlightenment in the works of journalists - SOL

"You call self writer?" - editorial feedback written on an article draft for a NY newspaper.
gea
50%
50%
gea,
User Rank: Light Beer
12/5/2012 | 12:13:20 AM
re: Report: DWDM No Match for Sonet
Silenceofthelambdas basically has it right.

In certain situations, WDM could provide many of the services currently supported by SONET, but the reality is that both standards as well as demand isn't there. (These services include protection as well as the ability to transport mutliple protocols over the same fiber/equipment infrastructure.)

As for demand, the notion of WDM providing network services really won't materialize until networks move over from being circuit switched to packet switching (possible MPLS). This is where we start seeing lots of OC-48c and 192c, and SONET is not nearly as useful in such environments (though it might still end up getting re-fitted to handle such pipes more effectively). (And it was this kind of scenario where optical cross connects were envisioned to be dominant.)

So as for now, DWDM will continue to be more or less a bandwidth-multiplying technology.

(Hey...that was also a wierd comment about the OSC. Even the earliest DWDM systems from Pirelli had them. I've never even seen a DWDM system that didn't have one. So the OSC is not something that can be pointed to as being a 'new' help in the proliferation of DWDM.)
SG_Cowen
50%
50%
SG_Cowen,
User Rank: Light Beer
12/5/2012 | 12:13:20 AM
re: Report: DWDM No Match for Sonet
This study is consistant with our research. I assume they included the MSPP (or some people call it MSTP: Multi-Service Transport Platform) as part of SONET. MSPP is going to be the hottest product in the transport market, combining voice, data, integrated with Ethernet L2 switches, IP routers and DXC.
The SONET market shown in this research also includes products with functions of edge routing which are boundled with MSPP. It captures revenue from the data market, explaning how the SONET grwoth can be so large-IT'S MSPP!
BackSlash
50%
50%
BackSlash,
User Rank: Light Beer
12/5/2012 | 12:13:19 AM
re: Report: DWDM No Match for Sonet
So what is the market size in 2004 / 2005 ?

Are these people sniffing the same stuff as RHK?

Just check the budgets for the RBOX/ILECS.. they will tell the real numbers.

As for WDM/SONET statement about one winning over another.. the posts here have put it right.. They work together..

This just proves my theory that ANAL-ISTS are tabloid reporters with a little bit (and I stress little bit) of knowledge which allows them sound smart to the PHB of the world.

(Hey.. lets throw the work DWDM / SONET / OSC in here to make it sound even more high tech.. D'OH)

/
wannaw
50%
50%
wannaw,
User Rank: Light Beer
12/5/2012 | 12:13:17 AM
re: Report: DWDM No Match for Sonet
I'm looking at another market projection, and it is so far out of line with Insight, it's sick.

I can't publish the exact numbers, but they are approximately 6x and 15x lower for DWDM and SONET, respectively.

15x !!!

You would have thought Insight would have learned from the late 90s that exponential growth just doesn't happen, no matter how many VPs of marketing say it will.
Page 1 / 2   >   >>
Featured Video
From The Founder
Light Reading is spending much of this year digging into the details of how automation technology will impact the comms market, but let's take a moment to also look at how automation is set to overturn the current world order by the middle of the century.
Flash Poll
Upcoming Live Events
November 1, 2017, The Royal Garden Hotel
November 1, 2017, The Montcalm Marble Arch
November 2, 2017, 8 Northumberland Avenue, London, UK
November 2, 2017, 8 Northumberland Avenue London
November 10, 2017, The Westin Times Square, New York, NY
November 16, 2017, ExCel Centre, London
November 30, 2017, The Westin Times Square
May 14-17, 2018, Austin Convention Center
All Upcoming Live Events
Infographics
With the mobile ecosystem becoming increasingly vulnerable to security threats, AdaptiveMobile has laid out some of the key considerations for the wireless community.
Hot Topics
Muni Policies Stymie Edge Computing
Carol Wilson, Editor-at-large, 10/17/2017
'Brutal' Automation & the Looming Workforce Cull
Iain Morris, News Editor, 10/18/2017
Worried About Bandwidth for 4K? Here Comes 8K!
Aditya Kishore, Practice Leader, Video Transformation, Telco Transformation, 10/17/2017
What Does Automation Mean to You?
Ray Le Maistre, International Group Editor, 10/17/2017
Animals with Phones
Selfie Game Strong Click Here
Latest Comment
Live Digital Audio

Understanding the full experience of women in technology requires starting at the collegiate level (or sooner) and studying the technologies women are involved with, company cultures they're part of and personal experiences of individuals.

During this WiC radio show, we will talk with Nicole Engelbert, the director of Research & Analysis for Ovum Technology and a 23-year telecom industry veteran, about her experiences and perspectives on women in tech. Engelbert covers infrastructure, applications and industries for Ovum, but she is also involved in the research firm's higher education team and has helped colleges and universities globally leverage technology as a strategy for improving recruitment, retention and graduation performance.

She will share her unique insight into the collegiate level, where women pursuing engineering and STEM-related degrees is dwindling. Engelbert will also reveal new, original Ovum research on the topics of artificial intelligence, the Internet of Things, security and augmented reality, as well as discuss what each of those technologies might mean for women in our field. As always, we'll also leave plenty of time to answer all your questions live on the air and chat board.

Like Us on Facebook
Twitter Feed
Partner Perspectives - content from our sponsors
The Mobile Broadband Road Ahead
By Kevin Taylor, for Huawei
All Partner Perspectives