august
Dark blue: 
Firm commitments from incumbent: BT (10M), Belgacom, Swisscom,                                          Ad from Sckipio
Austria, Bezeq Israel, Chunghwa Taiwan, Korea SK, (U.S.) Century & Windstream
Light blue: Smaller carriers: Canada, Germany, Norway, Finland, Japan
Green: Incumbent likely: France, Germany, Australia, Poland & Panama                                    
Below: Country by country details. 

Read more ...

An industry leader in test points out the key steps. Lincoln Lavoie at  the University of New Hampshire, working with the Broadband Forum, runs the model test lab for DSL. They perform the crucial interoperability testing for the Forum. Working with the Forum, they brought an interop demo to BBWF, to show the world that G.fast chips are effectively communicating with each other. 

Lavoie just published an article at Electronic Design, Best Practices for G.fast System Testing. He notes that both VDSL2 & G.fast incorporate "seamless rate adaption (SRA), bit swapping, retransmission, dying gasp, and vectoring," all of which need to be tested. Testing is also needed for G.fast features, "robust management channel (RMC), dynamic resource allocation (DRA), and fast rate adaption (FRA)." 

Using a switch, noise generator, digital signal analyzer (signal-capture system), and Ethernet traffic generator, UNH can test most of the features of the equipment.

At BBWF, they used Telebyte and Digital Lightwave for the test gear as well as equipment based on chips from Metanoia, Sckipio, and Broadcom. A half dozen "plugfests" at UNH brought the vendors closer together, although all agree there's plenty of work to do.

In the article, Lincoln describes approaches to testing bit-swapping, seamless rate adoption,  retransmission, and multi-line testing. There's also a helpful white paper from UNH.  

 

Newsletter

Often interesting

Upperside rectangle

Latest
BT: G.fast performance "pretty much spot on"
DSM Could Increase G.fast Speeds 25-50+ Megabit
DT: No 35b VDSL before 2018, modems not available
AT&T G.fast confirmed (unofficially.)
Andrew Ferguson: DSLAMs can be different
Energia Selling Nokia G.fast in Japan
Calix Clobbered by Services Cost
Switzerland: We're going G.fast; Forget fiber home except in new builds 
Nokia takes XG-FAST to 8 gig in the lab at nbn 
Huawei jumping in to G.faster 
Paris G.fast Summit 2017 9 to 11 May will be a great show
100,000 G.fast modems sold by Technicolor - running VDSL Australia: 
700,000 "FTTdp homes." Should use G.fast but may go VDSL. 
Tens of millions G.fast lines predicted 
"Study" predicts $200/line G.fast chip price in 2022 !? 

Read more ...