In 2016, G.fast looked very promising.
But only BT & Australia's nbn remain
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
Mid Blue: Smaller carriers in Germany, Norway, Finland, Japan
- Published: 22 September 2017 22 September 2017
Lincoln Lavoie sees "cross chipset interoperability and performance at all levels including device software for management and control." Gear with chips from Broadcom, Metanoia, and Sckipio are working with each other at a good speed, usually 600 megabits or higher. EXFO and Viavi testers also passed.
He adds, "Gfast testing has already been more rigorous than any previous certification testing and we are testing individual features more deeply than we have on any previous technology."
"Interoperability" is considered to mean working reasonably together, not necessarily at maximum performance levels. While first generation G.fast is defined to about one gigabit, interoperability testing does not run at those speeds.
- Published: 23 August 2017 23 August 2017
Customers want 212 MHz but development is still needed. Tom hopes for the first half of 2018, but notes, "The timetable for volume deployment is dependent on the chip suppliers." One European telco was told not to expect much until well into the year. I wouldn't be surprised if few customers are connected until late in the year.
Adtran demonstrated two DSLAMs with Deutsche Telekom. One used Sckipio chips and delivered DTA. DTA allows higher effective speeds by allowing different upstream/downstream splits for each user. Since most systems are configured for a 5-1 or higher upstream/downstream split, the improved upstream can be 5X.
The second DSLAM used Broadcom chips and 212 MHz of spectrum but without DTA.
- Published: 23 August 2017 23 August 2017
Officially mum as they seek government money. In the 2/3rds of Germany that can get cable, DT has been falling behind for years. Mike Fries of Liberty has aggressive plans to expand the cable footprint; LGI's expansion in England and Germany is the largest new wireline network building in Europe. City networks in Munich and Cologne are also upgrading rapidly.
DT is carefully not discussing their G.fast plans as they negotiate with the government for billions in subsidies for vectoring. The 20% of Germany without cable or DT upgrade plans has $4B in subsidies already allocated. DT wants more money, but doesn't want to build a robust network where they have a near-monopoly.
- Published: 22 August 2017 22 August 2017
T plans much bigger splash in territory starting soon as well. Large buildings and groups are being fought over hard by AT&T, Verizon, Comcast, and others. Verizon brought Fios fiber to this market almost a decade ago, as did local independents. Comcast is offering gigabit coax, which it is soon offering to all ~40M homes as well.
AT&T jumped in more recently, led by Ed Balcerzak of their DirecTV division. DirecTV has millions of lines of coax bringing TV from rooftop antennas, a natural opportunity for broadband. Reporters see the new announcement as the kickoff of a major move with G.fast.
In selected neighborhoods of ~65% of the U.S., AT&T will consider running fiber to the basement or WTTR - Wireless to the Rooftop - plus G.fast at 500 megabits.
- Published: 09 August 2017 09 August 2017
The technology available earlier but Dell'Oro analyst thinks telcos will move slowly. Adtran, Broadcom, Huawei, Sckipio, & ZTE are demonstrating the next generation of G.fast gear, which presumably will be generally available in early 2018. AT&T, BT, Century, and others have plans to move aggressively, but Tamboli believes the large volume will be in 2019.
'Operators are holding off on massive deployments throughout their networks until they have more hands-on time with amendment 3 chipsets and systems, which will be available in early 2018," he believes. "Furthermore, many operators that wish to deploy G.fast into larger buildings via FTTB architectures are waiting for 32 or larger port units"
- Published: 04 August 2017 04 August 2017
Cerberus offering it to customers. BT fell a little behind schedule but will cover several hundred thousand homes with G.fast this fall. 10 million are promised by 2020. The retail ISPs are now active, with Cerberus offering the service on its web site.
"Up to 330 down, 30 up" costs 90 pounds including VAT, $117. "Up to 160 down" costs a little less. BT's fiber home is actually a bit cheaper.
Cerberus reports, "BT will only allow an order to be placed where the availability checker states that the predicted speed is 80.01Mbps or higher." The reach is estimated at ~300 meters.