Light Reading
Advances in OTN switching are helping carriers deploy flexible and viable 100G metro transport networks.

OTN Innovation Boosts Metro 100G

Carolyn Mathas
News Analysis
Carolyn Mathas
6/9/2014
50%
50%

Innovation in OTN switching is rapidly becoming the key enabling technology -- the glue, if you will -- that will sufficiently bring down costs to spur 100G deployment in the metro.

Put simply, it allows hybrid WDM line cards to deliver both efficiency and future-proof features (and lower the cost sufficiently to spur implementation), enables the use of existing fiber, and provides impetus for the mass, and profitable, deployment of 100G.

The need for such capabilities is evident, as the pressure on transport networks is relentless, requiring more efficient and feature-rich transport capabilities. According to its annual Visual Networking Index (VNI), Cisco Systems Inc. (Nasdaq: CSCO) expects the volume of IP traffic to triple between 2012 and 2017 to 121 exabytes per month, while Bell Labs predicts massive growth in both metro and backbone traffic. (See Bell Labs Sees 560% Boost in Metro Data Traffic and Cisco's VNI: Stone Tablet or Debating Tool?)

While 100G optical transport technologies are helping to alleviate runaway bandwidth demands, maximizing network operator service flexibility is critical, especially as demand grows for data transport networks that can support cloud services provisioned from data centers.

As a result, the signs are positive for those in the OTN food chain. Infonetics Research Inc. reports that the OTN switching sector grew 37% in 2013 to be worth $8 billion (66% of the optical networking hardware market), and predicts a 20% compound annual growth (CAGR) from 2013 to 2018.

The research firm also noted last year that 86% of respondents to a survey of network operator executives said they planned to deploy OTN switching technology, and placed an emphasis on integrating OTN switching with WDM interfaces in the same hardware platform: By 2016, 94% of respondents who plan to use OTN switching in the core want WDM interfaces integrated in the OTN switching equipment.

According to Sterling Perrin, senior analyst at Heavy Reading , "OTN–based mesh networks, coupled with optical control plane software, enable faster bandwidth provisioning when compared to static point-to-point links and ring based networks… flexible provisioning is a key requirement for transport in the cloud. In addition, switched OTN is being tightly coupled with 100G transport as the grooming technology of choice."

Capacity crunch
Carriers are struggling with the need to increase network capacity, but not by laying new costly fiber. Recent advances in optical transmission technologies are beginning to ease the challenges, with the main advances being coherent detection, 100G Forward-Error Correction (FEC) technology, and OTN switching.

Coherent detection, proven at 40G and 100G, enables 10G wavelengths, which typically comprise current DWDM transport networks, to be upgraded to 100G wavelengths without the need to trade optical reach, invest in costly fiber upgrades, or add dispersion compensation equipment. It uses the existing fiber plant that now runs 10G to carry 100G while meeting distance requirements of up to 1000km in metro and 3000km in long-haul networks.

100G FEC corrects errors introduced during signal transmission at longer distances. Two classes of FEC technology exist:

  • Hard-decision FEC: PMC's Swizzle FEC Technology, for example, delivers 9.45dB gain for 7% Overhead FEC (metro class) integrated inside its DIGI-120G OTN Processor.

  • Soft-decision FEC: Coherent DSP/optics ecosystems suppliers developed SD-FEC and integrated it with their DSP to achieve much longer transmission by system vendors with in-house DSP, and third-party vendors such as Acacia and ClariPHY.

OTN switching provides a cost disruption for 100G transmissions and makes 100G viable for the metro with a higher volume/shorter optical reach.

Next page: OTN in the metro

(3)  | 
Comment  | 
Print  | 
Page 1 / 2 Next >
Newest First  |  Oldest First  |  Threaded View
Rayfish
50%
50%
Rayfish,
User Rank: Light Beer
6/9/2014 | 11:19:41 PM
Re: Metro 100G already gaining momentum
But consider that the metro access still GE, 10GE; 100G use as a uplink for sure is the trend, and cost per 100G port reduced a lot during past years, if use as a customer side, still need take some time, when industry manufacture cost for 100G optical module have a big reduce, then it is the time, it just my shortsighted view.
kingcanuck
100%
0%
kingcanuck,
User Rank: Light Beer
6/9/2014 | 12:21:10 PM
Re: Metro 100G already gaining momentum
I can't help but wonder why Tom Fallon and Dave Welch at Infinera see 100G in the metro as a 2015-2016 story.  Sandbagging, or is their metro product not ready yet?
Ray@LR
50%
50%
Ray@LR,
User Rank: Blogger
6/9/2014 | 8:09:18 AM
Metro 100G already gaining momentum
It seems a number of factors are coming together to boost the metro 100G market -- Ciena referenced the market in its earnings report last week

 
Educational Resources
sponsor supplied content
Educational Resources Archive
Flash Poll
LRTV Huawei Video Resource Center
Sales Director of INIT on Plug & Play Switch Devices

9|19|14   |   3:21   |   (0) comments


INIT Italy uses both the Huawei S5700 and S7700 series switches for the campus LAN environment. Sales Director Andrea Curti says their company chose these Huawei devices over others because of their performance, flexible scalability and plug-and-play features.
LRTV Huawei Video Resource Center
Saudi Arabia Upgrades Vocational Training System

9|19|14   |   3:31   |   (0) comments


The Technical and Vocational Training Corporation (TVTC) has 100,000 students, 150 government-owned institutions and oversees 1000 private institutes. The CIO of TVTC explains that Huawei devices have allowed them to manage multiple datacenters using just one software program, scientifically tracking the progress of students and teachers, saving them millions.
LRTV Huawei Video Resource Center
Huawei's Media Solutions Are Here to Stay

9|19|14   |   4:35   |   (0) comments


The current media revolution requires rapid upgrades in technology. New formats (HD, 3D, 4K etc.) and the subsequent explosion of file sizes demand sophisticated network and storage architecture. Social media and the multiple distribution channels require a robust asset management system. Gartner analyst Venecia Liu speaks about the current technological trends in ...
LRTV Huawei Video Resource Center
Microgenesis on Huawei's Switches

9|19|14   |   3:57   |   (0) comments


Microgenesis is a solutions and system integrator company in the Philippines whose areas of expertise include data centers, networking and security products. In this video, Executive Director Jeffrey Choa talks to us about his customers needs and they benefit from using Huawei switches.
LRTV Huawei Video Resource Center
Network Solutions Help the Philippines Jump Ahead

9|17|14   |   2:59   |   (0) comments


In the past, the Philippines has under-invested in technology. Now, the CEO of Softshell talks about how Huawei products help the Philippines jump ahead as the economy improves.
LRTV Huawei Video Resource Center
VCS Observation for Safer Cities in the Netherlands

9|17|14   |   5:20   |   (0) comments


Holland's VCS Observation has been operating for 22 years. Its main goal is to get cities safer. CEO Wim van Deijzen tells us some of the challenges his company faces and how Huawei is helping to overcome these challenges.
LRTV Huawei Video Resource Center
A Conversation With Serbia's Ministry of Interior

9|17|14   |   4:38   |   (0) comments


At HCC 2014, the Assistant Minister of the Ministry of Interior of the Republic of Serbia talks to us about his projects and corporation with Huawei. Solutions like Safe City and E-Government and services like cloud computing are just some of the areas his department is interested in.
LRTV Huawei Video Resource Center
IHS Analyst Discusses eLTE at CCW 2014

9|10|14   |   7:09   |   (0) comments


Thomas Lynch, associate director of critical communications at IHS Technology, talks about broadband in critical communications.
LRTV Huawei Video Resource Center
TCAA on Huawei eLTE: A Broadband Solution for Mission-Critical Communications

9|10|14   |   2:29   |   (0) comments


At CCW2014 in Singapore, the TCCA's Phil Kidner talks about the importance of broadband data for critical communications.
LRTV Custom TV
Spotlight on Cisco: SDN for Optical Networks

9|8|14   |   9:27   |   (0) comments


Cisco's Greg Nehib talks OpenFlow and more on the 'Software-Defined Networking for Optical Networks' panel at the Big Telecom Event in June 2014.
LRTV Custom TV
Cisco's Evolved Programmable Network (EPN)

9|8|14   |   4:05   |   (0) comments


A look at the various demos Cisco showed at Light Reading's Big Telecom Event highlighting Cisco's EPN innovation and how SDN and NFV technologies are enabling a variety of new services.
LRTV Huawei Video Resource Center
The Future of Ultra-Broadband, With Kevin Kelly (UBBF2014)

9|5|14   |   1:13   |   (1) comment


If you think the technological changes we've seen up to now are astounding, just wait until you see what the future has in store. Discuss upcoming breakthroughs with Kevin Kelly, Founding Executive Editor of Wired Magazine, at the Huawei Ultra-Broadband Forum on September 24.
Upcoming Live Events!!
September 23, 2014, Denver, CO
October 29, 2014, New York City
November 6, 2014, Santa Clara
November 11, 2014, Atlanta, GA
December 2, 2014, New York City
December 3, 2014, New York City
December 9-10, 2014, Reykjavik, Iceland
June 9-10, 2015, Chicago, IL
Infographics
A survey conducted by Vasona Networks suggests that 72% of mobile users expect good performance all the time, and they'll blame the network operator when it's not up to par.
Today's Cartoon
Vacation Special Caption Competition Click Here
Latest Comment
Hot Topics
AT&T: We'll Bundle Fixed Wireless & DirecTV
Mari Silbey, Independent Technology Editor, 9/15/2014
New NFV Forum Focused on Interoperability
Carol Wilson, Editor-at-large, 9/16/2014
NFV & The Data Center: Top 10 Takeaways
Sarah Reedy, Senior Editor, 9/18/2014
Photos: Qualcomm Takes Over San Francisco
Sarah Reedy, Senior Editor, 9/19/2014
Connecticut Cities Crowdsource Gigabit Nets
Jason Meyers, Senior Editor, Utility Communications/IoT, 9/15/2014
Like Us on Facebook
Twitter Feed