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gfast map nov

Dark Green: Firm commitments from incumbent: BT (10M), Belgacom, Australian NBN, Swisscom,  Austria, Bezeq Israel, Chunghwa Taiwan, Telus Canada, Telekom South Africa, SK Korea, (U.S.) AT&T, Century, Frontier, Windstream, Belgium, Omantel

Mid Pink: Smaller carriers in Germany, Norway, Finland, Japan

Light Green: Incumbent likely:  France, Germany, Italy

Reverse power. DTA. Profile 212. Now is the time to start taking advantage of the advanced features, as deployments are approaching one million homes passed. Registration is free at you there. Look for the round fellow with a beard.

David Titus of AT&T will present details from their nationwide effort. 

Bill Bittancourt of Calix is supporting over 100 networks and has a strong presentation with some surprising results. Michael Weissman has shepherded products through certification and will describe the process. The program is below.

The parallel track on NG-PON2 features Vincent O'Byrne of Verizon, driving NG-PON2. I know most of the speakers to be extremely knowledgeable. 

Chair Bernd Hesse writes, “We will be exploring Gfast and NG-PON2 in depth and the use cases that underpin the decisions to deploy them. I look forward to the debate, hearing from THE experts in the industry and welcoming the community to these new Forum events. This BASE (Broadband Access Summit Event) workshop will present NG-PON2 technology and GFAST technology advantages and readiness to be used in the deployment of next generation access networks. A wide view on this topic and insides on latest technologies, applications, use cases and deployments will be provided from component vendors, system vendors and operators." I know most of the speakers. They are good.

Here's the full day

Gfast Session, Moderator: Dave Burstein  Editor at Fast Net News, DSL Prime and 5GW News

9:20 AM - 9:40 AM |  Gfast Certification, Testing, and Standardization, Michael Weissman VP Business Development, Sckipio
In the past 12 months (since the BBWF 2016), Gfast has moved out of the labs, and into the field.  This evolution has been made possible through the success of the Broadband Forum Gfast Certification Program, launched in June 2017, in combination with supporting plugfest activities.  Looking at what has been achieved, it's critical that service providers utilize the certification program, setting clear expectations for CPE and DPU performance and stability.  Here, we'll provide a detailed look into the certification program, as well as the coming enhancements to the Gfast Technologies from the ITU-T. 

9:40 AM - 10:00 AM |  Component market in two parallel tracks, Rudy Musschebroeck, Commscope
Component vendors in the passive and optical space will present on the challenges and innovations. The focus is on the requirements from network operators that are driving standards developments.  “As bandwidth demand continues to increase, fiber optics are making a steady progression deeper into converging access networks. To avoid the high cost associated to a full fiber to the home deployment, many operators turn to technologies such as DSL, G.Fast, FiberDeep, remote phy or even 5G fixed wireless radios, using existing coax or copper infrastructure or even wireless links. At the same time, densification of the wireless networks is paving the road to 5G. All these architectures require an increasing amount of active electronic devices at the edge of the network, each serving an ever smaller number of subscribers. This evolution leads to an increased requirement for power in the edge of the network, introducing new challenges for deployment and operations. The dielectric nature of fiber optics makes connections to the utility grid the default practice today. This session will explore the associated challenges and alternative solutions to provide power to the edge of the network.  “

10:00 AM - 10:20 AM |  GFast is ready for the Gigabit era, Mileend Gadkari, Sckipio
To be successful a product has to combine good performance (coverage) with the right level of CAPEX and OPEX. This presentation deals with innovative technologies used to meet this target, making ready for the Gigabit era.

10:20 AM - 10:40 AM |  Deploying GFast across different types of copper infrastructure, Bill Bittancourt Senior Product Line Leader, Calix
Benefits and options to deploy over OSP infrastructure - twisted pair, coax, including field trial results

10:40 AM - 11:00 AM |  The importance of testing GFast, David Bessonen Gfast Product Line Manager, Telebyte Inc.
Topics include Gfast Profile 212, independent Dynamic Timing Allocation (iDTA), collective DTA (cDTA), Reverse Power Feed (RPF) as well as rate-vs-reach testing./


GFast Session, Moderator, Michael Weissman,Sckipio

11:50 AM - 12:15 PM | Challenges and workflow processes for efficient deployment of ultra-broadband services, Larry Holcomb, BD Manager, EXFO
GFast field qualification and turn-up challenges and processes, integration of field test sets in processes for consistent turn-up and qualification test methodologies, adherence to company standards and thresholds, role of smart devices in the field to manage test processes, work order information and test results capture, archiving of field test results for performance analysis and trending.

12:15 PM - 12:40 PM | The rise of copper to multi-gigabit, Keith Russell, Product Marketing Director, Nokia
When first introduced, Gfast was seen one dimensionally as a new, faster DSL.  It quickly became clear that Gfast was quickly evolving to address operator specific needs for extended range and increased capacity.  Ultimately, the technology will be used in vastly different ways by operators to overcome specific deployment challenges. In this session we will discuss how all copper technologies are evolving to meet demand with a clear emphasis on  Gfast as it evolves to address more use cases addressing the needs of operators globally.   

12:40 PM - 1:05 PM | Finding the best buildings for Gfast - Where to Start?, Greg Bathrick, Director of Solution Marketing, Calix
Finding the best multi-dwelling units (MDU) involves a few key things to come together: the subscriber’s appetite for high bandwidth, the MDU owner’s willingness to host your service, and the building’s infrastructure to support gigabit services. This session talks about the steps that service provides need to consider.

1:05 PM - 1:30 PM  |Faster and Faster! Combining High Speed Broadband with Next Gen Home Networking, KEN HAASE VP, Product Line Management, ARRIS
The Broadband Wars continue to rage onward. Service providers struggle to balance the Total Cost of Ownership in the home against the need to take advantage of newer technologies such as, Next Gen PON, and eventually 5G, to enable faster access. This session will look at the end-to-end aspects of what faster broadband means to the entire ecosystem. Matching performance inside the home and managing the intricacies of the ever growing home network will be demystified.


Gfast Session, Moderator, Michael Howard,Senior Research Director, Carrier Networks, IHS

1:35 PM - 2:00 PM | AT&T: 212MHz GFast Deployment Strategy, David Titus, Principle Member of Technical Staff, AT&T
Cover AT&T’s planned speed tiers and rate/reach expectations.  Overview our converged DirecTV/G.Fast solution.  And introduce AT&T’s intend move towards an RPF (Reverse Power) strategy.  Will overview several Use Cases and provide a peek as to what AT&T is looking for Gen 3 silicon.

2:00 PM - 2:15 PM | TBD, Scott Helms,Senior VP Advanced Services, Momentum Telecom

2:15 PM - 2:30 PM | Connect the Unconnected: A Hybrid Network Strategy for Connecting America's Underserved and Unserved, Lev Gonick, CEO & Founder, Digital C
The presentation will outline the innovative use of mmWave and G.Fast network technology to connect households in Cleveland public housing.

2:30 PM - 2:45 PM | TBD

2:45 PM - 3:00 PM  Closing Statements and Panel Discussion

The Site for gfast 230 News

I’m still working through remarkable presentations from the Broadband Forum events. Michael Weissman, Bernd Hesse and team did a remarkable job choosing the speakers.

Deutsche Telecom: 35b Supervectoring Delayed to 2019
Broadcom is now over 3 years late. DT briefed German reporters after their financial call and revealed 35b was now delayed until 2019. 35b should deliver 200+ meg downloads 500-600 meters, a crucial tool for DT, which is losing share to cable. Cable now covers about 70% of Germany and is expanding. DT now only offers 50-100 megabit DSL while cable is often 400 megabits, going to a gigabit. 

The problem is software; the hardware is shipping and supposedly will work. DT says 35b is not ready to turn on. Broadcom in 2015 said 35b was in "production" in the press release below. Alcatel in early 2016 said to expect complete systems very soon. "35g is very similar to 17a so there should be little delay."

Broadcom's problems are leading major telcos and vendors to have a plan B, using Sckipio DT itself is planning extensive deployments in 2019, mostly in apartment buildings.

Gigabit 100 Meters - Unless the Wires are Lousy
Speeds are fine, "Unless there's a line problem." I've been reporting for three years that ~10% of lines have problems. In the chart by Rami Verbin of Sckipio, he finds goes ~130 meters on good lines. Poor lines have about half the reach. 

His chart roughly matches the reports from Swisscom, Belgacom, and England for both & vectored DSL. The 10% with problems can cause the majority of the line-related complaints to support. The angry customers drive up cost.

Rami's solution to reach the gigabit is bonding, supported on the Sckipio chips. Verbin made some additional points:

  • 4 gigabits is possible by bonding two decent 2 gigabit lines.
  • Even in a service from remote cabinets, ~25% are close enough to get a full gigabit."
  • cDTA and iDTA are practical ways to deliver much higher upstream by switching some bandwidth from downstream to upstream only when needed.
  • 35B will probably be similar but Deutsche Telecom doesn't expect to deploy until 2019.

AT&T Wants Coax 2-5 Gigabit Very Soon.
AT&T faces intense competition from cable, talking about 10 gigabits in both directions. (Cable will only be 1 gig down, ~100 meg up, until ~2021.) AT&T wants something to brag about as well.

AT&T gained millions of lines of coax as part of the DirecTV deal. Alcatel and Huawei are leading the development of G.mgfast. That uses 424 MHz, full duplex, to achieve ~2.5 gigabits in both directions. The reach on telco twisted pair is only about 30 meters. On coax, those speeds can probably extend far enough to service most apartment buildings. Using 848 MHz, speeds can reach 5 gigabits. The ITU standards group has been aiming for 2019-2020 for G.mgfast, too slow for AT&T's marketers. David Titus wants a high-speed standard for coax "early in 2018." He believes that is "doable."

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