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

 
Flash Poll
LRTV Documentaries
Sprint's Network Evolution

7|24|14   |   14:59   |   (0) comments


Sprint's Jay Bluhm gives a keynote speech at the Big Telecom Event (BTE) about Sprint's network and services evolution strategy, including Spark.
LRTV Documentaries
BTE Keynote: The Software-Defined Operator

7|24|14   |   18:43   |   (1) comment


Deutsche Telekom's Axel Clauberg explains the concept of the software-defined operator to the Big Telecom Event (BTE) crowd.
Light Reedy
Numbers Are In: LR's 2014 Salary Survey

7|24|14   |   1:25   |   (2) comments


Our fourth annual Salary Survey paints a picture of who's hiring, firing, earning, and yearning for a change in the telecom industry.
LRTV Custom TV
Driving the Network Transformation

7|23|14   |   4:29   |   (0) comments


Intel's Sandra Rivera discusses network transformation and how Intel technologies, programs, and standards body efforts have helped the industry migration to SDN and NFV.
LRTV Custom TV
Distributed NFV-Based Business Services by RAD

7|18|14   |   5:38   |   (0) comments


With the ETSI-approved Distributed NFV PoC running in the background, RAD's CEO, Dror Bin, talks about why D-NFV makes compelling sense for service providers, and about the dollars and cents RAD is putting behind D-NFV.
LRTV Custom TV
MRV – Accelerating Packet Optical Convergence

7|15|14   |   6:06   |   (0) comments


Giving you network insight to make your network smarter.
LRTV Custom TV
NFV-Enabled Ethernet for Generating New Revenues

7|15|14   |   5:49   |   (0) comments


Cyan's Planet Orchestrate allows service providers and their end-customers to activate software-based capabilities such as firewalls and encryption on top of existing Ethernet services in just minutes.
LRTV Custom TV
Symkloud NVF-Ready Video Transcoding, Big Data

7|9|14   |   3:41   |   (0) comments


Kontron and ISV partner Vantrix demonstrate high-performance video transcoding and data analytic solutions on same 2U standard platform that is ready for SDN and NFV deployments made by mobile, cable and cloud operators.
LRTV Huawei Video Resource Center
The Evolving Role of Hybrid Video for Competitive Success

7|4|14   |   4:09   |   (0) comments


At Huawei's Global Analysts Summit in Shenzhen, China, Steven C. Hawley from TV Strategies speaks to us about the evolving role of hybrid video for competitive success.
LRTV Huawei Video Resource Center
How CSPs Leverage Big Data in the Digital Economy

7|4|14   |   4:48   |   (2) comments


Justin van der Lande from Analysys Mason shares with us his views on how telecom operators can leverage customer asset monetization with big data. His discusses the current status of big data applications and the challenges and opportunities for telecom operators in the digital economy era.
LRTV Huawei Video Resource Center
Accelerator for Digital Business – Future Oriented BSS

7|4|14   |   3:08   |   (0) comments


Mobile and internet are becoming intertwined; IT and CT are integrating; and leading CSPs have begun to transform to information service and entertainment providers. How should the BSS system evolve to enable this transformation? Karl Whitelock, an analyst at Frost & Sullivan, shares his views.
LRTV Huawei Video Resource Center
Orange Tunisia Discusses Multi-Band Antenna With EasyRET Solution

7|4|14   |   2:45   |   (0) comments


As new site acquisition becomes more difficult, Orange Tunisia has requested multi-band antenna to support UMTS and LTE innovation. Some things considered include reducing the cost of antenna maintenance and having high reliability antenna and EasyRET solution.
Upcoming Live Events!!
September 16, 2014, Santa Clara, CA
September 16, 2014, Santa Clara, CA
October 29, 2014, New York City
November 11, 2014, Atlanta, GA
December 9-10, 2014, Reykjavik, Iceland
Infographics
Allot's latest MobileTrends Charging Report shows that value-based pricing plans are up from 35% in 2011 to 85% in 2014.
Today's Cartoon
Vacation Special Caption Competition Click Here
Latest Comment
Hot Topics
The Municipal Menace?
Jason Meyers, Senior Editor, Utility Communications/IoT, 7/22/2014
Cisco Puts a Fog Over IoT
Sarah Reedy, Senior Editor, 7/23/2014
GM: 10 Car Models on Road With AT&T's LTE
Dan Jones, Mobile Editor, 7/18/2014
Apple Earnings: Strong iPhone Sales, iPad Sales Slump, $7.8B Profit
Mitch Wagner, West Coast Bureau Chief, Light Reading, 7/22/2014
Like Us on Facebook
Twitter Feed