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Gfast map July 2017

Dark blue: 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

Light blue: Smaller carriers in Germany, Norway, Finland, Japan

Green: Incumbent likely:  France, Germany, & Poland  

3 Horse race100 meter G.fast doesn't go far enough or serve larger buildings. Perhaps the telcos want something with more reach than G.fast (100 meters, ~500 megabit,) and more speed than DSL Vectoring (~100 megabit, 800 meters.) Chipmaker Lantiq was the first to announce 200+ meg products,

Lantiq tweaked existing high end VDSL2 chip - and the pr. VDSL2 30 MHz profile 30a is generally described as 100 meg down, 100 meg up. Combine the two for your press release and you're at "200 megabits." Tweak a few parameters and you can claim "300 Mbps VDSL Right Now." Lantiq did that. Besides one-upmanship, it provides a way to telcos to advertise "300 megabits" to counter cable promises of 200, 400 and even a gigabit. Aethra, working with Lantiq, has delivered units to Orange Poland.  I believe Broadcom is doing similar. < Kabel Deutschland CTO Lorenz Glatz two years ago explained his company strategy. "Whatever speed Deutsche Telekom, we'll offer twice the speed at the same price." Euro-DOCSIS 3 easily goes to 400 shared and delivers > 200 meg 95+% of the time. In 12-24 months, DOCSIS 3.1 will take that to a gigabit. Deutsche Telekom, building a 50-100 megabit VDSL network, fears they'll be left behind. Vendors are listening and hence promising a new class, Midi-DSL, mid-range bet G.fast and G.vector, promising higher speeds. Alcatel, Huawei and Adtran have all announced products. For now, Midi-DSL is slideware.

 No one has shown equipment publicly although Huawei claims tests in customer labs.

    Midi-DSL isn't limited to 16 connections. 100 or more homes can be served. It may be years before G.fast can do more than 16 homes. There are problems with space, heat and design. Midi-DSL is planned for cabinets which have more room for heat sinks and boards. 

   Much of the improved speed is hype: DSL has always been discussed based on download speed (6 meg for ADSL1, 24 meg for ADSL2 ...) The Midi-DSL folks add the upstream speed to get more impressive numbers. Since some of the upstream capacity in G.fast can be switched to downstream giving the combined figure isn't totally deceptive. But it's darn confusing. I'll keep reporting downstream & upstream numbers for now.

    Higher speeds require using more spectrum, becoming more efficient, or reducing interference. G,vector is standardized to 30 MHz but most deployments only use the lower 17. I have separate articles on Lantiq, Adtran, aethra, Alcatel and Huawei with more details.

 

 


212 GHz and cDTA are soon shipping from Adtran. True gigabit is here. Sales takeoff is almost in sight, probably Q1 2018.
Australia confirms 1M, AT&T is ready to ramp, DT finally is moving. Omantel and Telkom South Africa are now on the map. Almost all telcos are now choosing G.fast for large buildings when they don't go FTTH. MNet Cologne and Chunghwa Taiwan have changed from fiber all the way to G.fast in the basement.

212 MHz and cDTA Are Ready: Adtran http://bit.ly/GF212cDTA
Frank Miller of Century: G.fast Will be Important to Us http://bit.ly/GFCentury

Carl Russo: Since 2007, I've Been Turning Calix Into a Software Company http://bit.ly/CalixSDN

Adtran Chosen for Australia nbn Fiber to the curb. http://bit.ly/GFnabAus

nbn looking to a million lines. This one is big. Adtran is on a roll, with DT & AT&T also looking good for 2018.

1,400,000,000 In The Works. 1.4 Gigabits http://bit.ly/GF14Gig
South Africa & Connecticut Go Nokia http://bit.ly/SouthAF

Omantel: 90% Fiber & G.fast http://bit.ly/Omantel

 

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