Light Reading
Comcast is adding DOCSIS 3.1 to its own CCAP product specs and looking at remote PHY next.

Salinger Draws Comcast CCAP Roadmap

Mari Silbey
3/28/2014
50%
50%

DENVER -- Cable Next-Gen Strategies & Technologies -- As the man affectionately dubbed the father of the Cable Converged Access Platform, it's appropriate that Comcast vice president of access architecture Jorge Salinger is already looking ahead to what's next for CCAP.

In 2014, most vendors have launched CCAP products in one form or another, and operator deployments are well underway. According to Salinger, Comcast Corp. (Nasdaq: CMCSA, CMCSK)'s own CCAP product specifications are already being expanded to include DOCSIS 3.1.

That work began in January, and Salinger said at Light Reading's technology event in Denver that he expects the DOCSIS 3.1 additions to the product specification to be complete within a month.

Beyond DOCSIS evolution, however, Salinger sees plenty of other opportunities for CCAP. Most notably, he and others are examining remote PHY strategies, which would mean distributing certain traditional headend functions out into the cable node.

The advantage of a remote PHY approach is that it moves modulation deeper into the network, creating a digital link where today an analog one exists. In the most extreme case, operators could remote both the PHY and MAC layers, essentially implementing a virtual CCAP device out in the node. The virtual CCAP strategy is one championed by startup Gainspeed, although that company hasn't launched any official products yet. (See Is CCAP Already Out of Date?)

There are major potential performance benefits in capacity and reliability to distributing CCAP functions further out into the network. However, cable companies have to wade through a number of options for implementing such an approach. Salinger laid out the next steps for remote PHY development, which include crafting remote PHY hardware and function specifications, and configuration and management specs. While saying he thought "this will all be developed this year," Salinger did concede that rolling out remote PHY technology will be a more difficult challenge.

Ony Anglade, senior access architect for Cox Communications Inc. , who sat on a CCAP panel with Salinger, agreed that deployment won't be easy. "[The] big challenge for us is the migration process," said Anglade.

Operators will have to decide which network transitions to consider first; for example, whether to deploy remote PHY in one of its forms, do a mid-split to ensure greater upstream capacity, or combine multiple strategies at once.

Steve Vogelsang, strategy vice president and CTO for IP routing and transport at Alcatel-Lucent (NYSE: ALU), who was also on the CCAP panel, described the situation in even starker terms. He said that the changes cable companies have to make to their networks are analogous to keeping a plane in the air while swapping out the engine.

For vendors, said Vogelsang, the important thing will be to make sure that, as new products are introduced, technology providers have strategies for how to introduce those solutions into existing networks. Cable doesn't have the luxury of a greenfield environment.

— Mari Silbey, special to Light Reading

(0)  | 
Comment  | 
Print  | 
Newest First  |  Oldest First  |  Threaded View
Flash Poll
From The Founder
It's clear to me that the communications industry is divided into two types of people, and only one is living in the real world.
LRTV Interviews
The New Wave of IP + Optical Integration

11|21|14   |   04:29   |   (7) comments


At the Alcatel-Lucent Technology Symposium, Heavy Reading senior analyst Sterling Perrin talks about how SDN has reshaped the discussion around packet and optical integration.
LRTV Huawei Video Resource Center
Huawei Highlights at BBWF 2014

11|20|14   |   3:40   |   (1) comment


Broadband World Forum is one of the world's largest telecoms, media and technology events with over 7,800 senior executives from across the globe converging on Amsterdam every year to identify the Next Big Thing. BBWF is an exciting place to meet the entire industry under one roof and identify the latest in network innovation, service optimization and customer ...
LRTV Huawei Video Resource Center
How Will BCMS Stimulate Margin for Broadband Operators?

11|19|14   |   6:52   |   (0) comments


In BBWF 2014, Liu Shuqing emphasizes the value of FMC 2.0 based full service experience by throwing light on the BCMS solution. The underlying principle of this innovative technique is to create network robustness and driving network from connection oriented to ACE – BAND oriented infrastructure, in which applications, cloud, and user experiences will be an asset ...
LRTV Huawei Video Resource Center
SingleFAN3.0: Better Connected Experience

11|19|14   |   3:06   |   (1) comment


At the BBWF 2014, David Hu, the VP of Huawei Access Network Product Line, talked about the future of access networks – SingleFAN3.0: faster broadband, wider coverage, and smarter connection.
LRTV Interviews
Basil Alwan Interview: The Road to Cloud

11|19|14   |   09:09   |   (0) comments


Alcatel-Lucent's head of IP and Transport talks about the migration towards a web-like networking environment, the impact of the cloud, SDN and NFV, and the yet-to-be-announced FP4 chip.
LRTV Documentaries
FairPoint Makes a Fair Point About Analytics

11|19|14   |   1:56   |   (1) comment


The US-based communication service provider gets to grips with advanced analytics, tackling data and breaking down the silos within its own business.
LRTV Documentaries
Analytics Lets C Spire Get to Know Subs

11|19|14   |   3:01   |   (2) comments


It's all about the data for US operator C Spire as it uses analytics to personalize its customer service down to individual subscribers.
LRTV Interviews
Nuage Branches Out With SDN: CEO Interview

11|17|14   |   9:32   |   (0) comments


Sunil Khandekar, CEO of Alcatel-Lucent's SDN-focused unit Nuage Networks, talks about the opportunities and challenges of breaking out of the data center into wide-area networks.
Light Reedy
Telecom Analytics Grows Up

11|14|14   |   1:15   |   (4) comments


The big data analytics debate has moved on from a year ago, with some experts suggesting it's no longer a technology challenge.
LRTV Huawei Video Resource Center
Huawei Compass

11|14|14   |   3:17   |   (1) comment


At OpenStack Summit 2014, Shuo Yang, Huawei Principal Cloud Infrastructure Architect introduced Huawei Compass, the software tool for solving customers' problems on the journey of OpenStack Cloud.
LRTV Huawei Video Resource Center
Huawei's Cloud Strategy in European Region

11|14|14   |   2:56   |   (1) comment


At OpenStack Summit 2014, Dr. Gotz, CTO of Huawei IT in European Region introduced Huawei's cloud strategy in European region.
LRTV Huawei Video Resource Center
Huawei's Contribution on OpenStack

11|14|14   |   5:58   |   (0) comments


At OpenStack Summit 2014, Dennis Gu, Huawei Chief Architect of Cloud Computing introduced the relationship between OpenStack and cloud computing, and Huawei's contribution on OpenStack.
Upcoming Live Events
December 2, 2014, New York City
December 3, 2014, New York City
December 9-10, 2014, Reykjavik, Iceland
February 10, 2015, Atlanta, GA
April 14, 2015, New York City, NY
May 6, 2015, McCormick Convention Center, Chicago, IL
May 30, 2015, The Westin Peachtree, Atlanta, GA
June 9-10, 2015, Chicago, IL
Infographics
Irish Telecom outlines the rise of VoIP technology, including its adoption within businesses and their perception of its quality.
Hot Topics
Bell Labs Chief Slams 'Toy' Networks
Robert Clark, 11/19/2014
$38.3M: Ain't That a Kik in the SMS
Sarah Reedy, Senior Editor, 11/20/2014
Subsea Market Lures New Cast of Characters
Dan O'Shea, Managing Editor, 11/14/2014
The New Wave of IP + Optical Integration
Ray Le Maistre, Editor-in-chief, 11/21/2014
Google, AT&T, BT Unite on Network Data Models
Carol Wilson, Editor-at-large, 11/20/2014
Like Us on Facebook
Twitter Feed