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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

Randall Stephenson at AT&T "needs 1 gig speeds." and promises "1 gig speeds ubiquitously." Sckipio is ready to start delivering, with 212 MHz Amendment 3 chips soon to sample to selected customers - including AT&T suppliers. Using 212 MHz of spectrum almost doubles the capacity of, reaching close to 2 gigabits between upstream and downstream in lab conditions.

1.5 gigabits downstream should be achievable over the short loops typical in apartment buildings. Adtran and Huawei have demo'd external boxes that can vector 48-96 ports, but Sckipio does not require the complexity of external vectoring. Instead, the first DSLAM supports 24 or 48 ports and can be daisy-chained with others on demand. This reduces the initial capex. 

cDTA allows switching between upstream and downstream for each line.

My line could be set to 500 megabits downstream most of the time. With cDTA, if we need to upload one of Jennie's videos it could switch to 500 megabits upstream. A typical user perceives much higher speeds.  

bit here rate reach. 

Reality check: While samples have been promised to developers in the next few months, it could easily be a year before volume deployments.

Broadcom has already done lab tests of 212 MHz chips, although they've released so little information it's not clear what will be available when.  

Re: The headline figure "150 Gigabits, 212 MHz, 96 Port." The new should be able to deliver close to 2 gigabits throughout a medium building. It's certainly possible that 96 ports could draw 150 gigabits. In practice, few homes will be drawing more than a small fraction of the peak speeds very often. Remember, two HD TV streams and someone surfing only requires 10-15 megabits.  Operators are confident that 10 gigabits of backhaul will be enough for congestion to be minimal or less.


Sckipio Announces World’s First 96-port Gfast DPU

Amendment 3 EVM delivers gigabit speeds to 4 times more subscribers
RAMAT GAN, ISRAEL – September 18, 2017 – Sckipio, the leader in Gfast chipsets, announced the world’s first 48-port, gigabit-capable Gfast distribution point unit (DPU) that can be connected together to support 96 ports. The Sckipio DP2-48- V6-2201 uses the breakthrough new SCK-23000 chipset and Gfast Amendment 3’s 212a profile. By using the 212a profile instead of the 106a profile, Sckipio delivers the extra capacity often needed to achieve true 1Gbps downstream rates.
“Our vision is simple – telcos need to deliver a full gigabit to as many subscribers as possible,” said David Baum, CEO of Sckipio. “Sckipio’s 96-port solution delivers 4 times more gigabit coverage than our rivals.”
The Sckipio DPU evaluation unit comes standard with 48 ports of Gfast running on the 212a profile. To reach 96 ports, an additional 48-port Gfast DPU is connected and both devices coordinate to vector across all 96 ports using Sckipio’s revolutionary cross-DPU vectoring technology. By doing so, telcos can offer true 1Gbps downstream service to 96 concurrent subscribers over the same copper binder.
“Together, we have helped make Sckipio the most widely deployed Gfast technology in the world,” said Greg Bathrick, Solutions Marketing Director, Gfast at Calix. “This next-generation chipset from Sckipio will extend that lead by enabling companies like ours to deliver gigabit capable solutions into unreached and underserved high-density MDUs around the globe. 
“Up until now, cable MSOs have been leading in the push for gigabit speeds as they upgrade to DOCSIS 3.1,” said Teresa Mastrangelo, Principal Analyst for Broadbandtrends. “However, the ability for telcos to offer gigabit broadband services via a Gfast solution provides a time-to- market advantage that will help the telcos not only keep broadband market share, but likely grow their share as well.”
The Sckipio DP2-48- V6-2201 delivers record-breaking performance through two important Sckipio innovations:
- High Density: Sckipio’s internal distributed vectoring allows for high port densities while using the 212a profile – without the need for external

- Cross-DPU Vectoring: Sckipio’s ability to vector across multiple DPUs to enable telcos to grow to 96 ports over time as take rates grow.
The solution will ship to customers in Q4, 2017.



23000 family of chipsets delivers 2Gbps speeds, cross-DPU vectoring and cDTA

RAMAT GAN, ISRAEL – September 18, 2017 – Sckipio, the leader in Gfast, took a major step in delivering the full promise of true gigabit speeds over twisted pairs and coax by releasing the SCK-23000 family of chipsets. This next-generation Gfast solution supports up to 2Gbps in both downstream and upstream directions. The Sckipio solution delivers gigabit access speeds to 4 times as many subscribers sharing a single binder than competitive solutions – all without the need for an external vectoring engine.

For even faster speeds, the Sckipio SCK-23000 family is also the first Gfast solution supporting 212 Mhz bonding for both the CPE and DPU. This ensures more subscribers will achieve gigabit speeds in highly challenging locations.

“This chipset is breathtaking,” said David Baum, CEO of Sckipio. “It delivers four times the vectoring capability, twice the bonding speeds, and supports coordinated DTA for symmetric-like performance in both downstream and upstream. This enables a gradual path to capacity that optimizes the CapEx and OpEx for telcos.”

With this chipset announcement, Sckipio is introducing the world’s first cross-DPU vectoring without the need for external vectoring. This allows for smaller DPUs to connect with each other to increase the vectoring port density. For example, it allows 8-port DPUs to be connected together to address different port configurations to 32 ports without requiring additional SKUs to manage and test. In addition, this enables telcos to reduce CAPEX by growing their infrastructure gradually over time instead of overbuilding with external vectoring at the outset.

To increase operators’ competitive differentiation versus cable companies, the new Sckipio solution is also the first commercial product offering coordinated DTA (cDTA) support beyond 1 gigabit in both upstream and downstream.

“Many telcos are under market pressure to support 1Gbps bandwidth services to residential subscribers,” said Julie Kunstler, Principal Analyst, Next-gen Infrastructure at Ovum. “Sckipio’s newest chipset supports this goal cost-effectively while providing seamless pay-as-you-grow options.”




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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