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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  

200px-RG-6 coaxial cableBetter cable doubles reach. Calix used a 16 port fiber-fed distribution point to deliver 500+ megabits 2,000 feet. For many years, American builders have wired homes with coax, most of which are served by the local cable provider. But 8% of the U.S. does not get cable broadband. If coax is in place, Calix has just demonstrated an alternative.

In addition, some developers prefer to maintain exclusive control of broadband. over coax could be a tool for a non-cable company to compete for the business. Within a building, there's a pretty stark performance difference between and VDSL.

If you have fiber to the basement, anything but is obsolete by the end of 2016 and possibly sooner. BT is proving works in the field

; they and others are solving the remaining bugs and other issues. gear is only modestly more expensive that VDSL to manufacture. Hard bargaining with the vendor should bring the price close. 

Today's networks easily deliver 300 meg wired, 100 meg wireless, to most of the people most of the time. Anything less is obsolete and will suffer where competition is effective.


I hadn't reported that Calix, like Adtran, had publicly demonstrated bonding I missed the press release from last year's BBWF. When I reported Adtran's similar demonstration, I should have included Calix as well. Cable is now upgrading to a gigabit in much of the world; Comcast & Cox are committed to delivering that gigabit to over half the United States. Without bonding of other improvements, calling a gigabit is simply false advertising. 

AT&T has been vocal they need to be able to offer a gigabit in turn. The original pr talked of a gigabit but that was never realistic. It only applied under lab conditions and implied that no bandwidth was used for upstream. I've reported speeds as 300-800 megabits, depending on several variables. The coming "long-range" deployments of will leave many with much lower speeds. was geared for performance at 50-100 meters and trails off very badly after about 300 meters. Carriers want to save money by building fewer field terminals. Several intend to go 400-500 meters and maybe more. 

Governments who allow false advertising of speeds are key enablers. 

Calix Announces Innovations in and Vectoring at Broadband World Forum


Live bonded demo to surpass gigabit threshold; VDSL2 system level vectoring to set new standard for deployment economics over copper

LONDON – October 20, 2015 – Calix, Inc. (NYSE: CALX), the world leader in gigabit fiber deployments, today announced the expansion of its copper solutions portfolio to be highlighted at the Broadband World Forum (BBWF) this week in London. Among the new innovations are:

    • Live demonstrations of bonding technology delivering broadband speeds in excess of 1 gigabit per second (1 Gbps) over existing copper infrastructure up to approximately 250 meters
    • Live demonstrations of interoperability between Calix DPUs and modems and those of other vendors at the Broadband Forum Interoperability Pavilion
    • The debut of breakthrough VDSL2 system level vectoring (SLV) solutions on the Calix E7-2 modular access systems that deliver up to 96 vectored ports without the economic and operational burden of a dedicated vectoring control processor card (VCP)
    • The introduction of new VCPs on the E7-2 modular chassis that can scale from 97 to 384 vectored VDSL2 ports to flexibly serve more dense deployment scenarios


With these innovations, Calix has set new standards for performance over existing service provider copper infrastructure, and is leading the way in bringing to market the breadth of solutions necessary to meet the emerging demands of copper-fed broadband consumers globally.

"It is critical for service providers like Windstream to be on the forefront of technologies that will allow us to leverage our existing infrastructure to meet ever increasing subscriber service demands," said Randy Nicklas, executive vice president of engineering and CTO at Windstream. "Optimally leveraging our copper infrastructure is essential to our strategy going forward, and we are excited by the innovations that are allowing us to leverage our strategic copper assets to both stay ahead of demand and our competition. We've seen these technologies in action, and these innovations are leading the way in helping us to deliver a world-class subscriber experience effectively and efficiently, independent of the media type over which they are served."

Coax in the lab test setup


100 ft - 2,000 feet RG6. RG59 16 port unit


Star topology -  lots of loop problems

16 port fiber DP


VZ study


2,000 feet 500 meg + over coax


cpe - 801s   twisted


bonded at BBWF and user group


get into labs in international big incumbents


southeast Asia - downtown


48 & 96 on the roadmaps


Bill in Santa Barbara


Kicking tires a lot of folks



larger folks want to go fast


---------------------- is superior to vectored VFSL2 in MDU pretty stark performance difference






video from satellite in MDU with two infrastructures  - the satellite guys may move further




Want to know about zero touch provisioning. - management issues



The Site for gfast 230 News
A remarkable 400 people attended the very strong Broadband Forum BASE events in Berlin and Las Vegas. Trevor confirmed BT would pass the million this year. Cioffi projected “Waveguide DSL” could carry 10 gigabits a kilometer as well as a terabit 100 meters. Werner sees a 4X improvement in upstream with cDTA. Much more in next issue.

Deutsche Wants a Gigabit, Finally Realizes 50 Meg Isn't Enough
Deutsche Telekom is finally realizing that 50 megabit DSL won't make it against gigabit cable. VP Franz Seiser is blunt. "We must change radically, become disruptive and, above all, throw away things," he proclaims at BBWF. After years of DT insisting 50 megabits is plenty, we now hear "it is about Gigabit products" from DT's Robert Soukup.  
    A lucky building in Frankfurt will receive 500+ megabit service as ultra-conservative Deutsche Telekom experiments with Soukup told BBWF, "We're going to have a field test in Frankfurt with and Fiber To The Building (FTTB.) We will know by the end of the year if this is the right way to go." Hint to Soukup: Yes it is. is working well at a dozen telcos I;ve talked to.
     The details are surprising. DT is going for CORD, Open Source, Calix, and Radisys.

*** The new Telebyte Guide to Testing Gfast follows the Broadband Forum IR-337 Gfast test specification, the same used by the University of New Hampshire (UNH-IOL) for Gfast certification testing. Free download (ad) It is the best technical guide to  I have seen. Grab it. Dave

1.6 Gig in Sckipio-Calix Test
A telco tells me they are getting impressive early results from the Calix 48 port DSLAM with the new Sckipio 212 MHz chips. There still is work to do but this is encouraging. 
    Carriers want DSLAMs with more than 16 ports to reduce the deployment costs from the basement or larger field cabinets. Speed matters to the marketing side of the company; AT&T's CEO believes he must offer a true gigabit to match cable. (They've been getting ~750 megabits with first generation chips.

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Beyond-the-Box visibility and control extends quality-of-experience (QoE) beyond the gateway to the end-user device for every device in the home. Based on ASSIA technology, proven across 80 million subscribers (ad)

Reverse Power 4 Port DSLAM for Australia
Australia is connecting 1M homes to, some with a Netcomm distribution point mini-DSLAM. It's a small unit designed for pole or pit mounting. It's waterproof, pressure proof, and temperature resistant. Their matching home modem is bittorrent friendly, with two USB ports for a hard drive dedicated to sharing.
     A reverse power unit at the customer, the NDD-0100-01, can save the cost of bringing power to the DSLAM. They don't expect many orders until the second half of 2018, as nbn is waiting for the second generation chips. Netcomm demonstrated RP with BT Openreach in August.

*** Sckipio's Three advances are taking to the next level. (ad)

Australia Makes it Official: to Million Plus
No news here. In September, 2015, I reported Australia's nbn Going This June. I reported the million home fiber to the curb (kerb?) was beginning. Unfortunately, they are no closer to figuring out where to find the needed $10B to $20B to cover the cost overruns. Instead, the parties are battling in Parliament about who is to blame.

2 Bonded 212 Lines = 3 Gigabits
Sckipio at BBWF is demonstrating 3 gigabits down, nearly a gigabit up, over two phone lines, bonded. Twice the bandwidth (212 MHz instead of 106 MHz) times two lines is fast. Sckipio does great demos; at CES, they showed first generation chips delivering almost 1 gig upstream.
    “Sckipio is pushing Gfast to astonishing speeds with production silicon,” CEO David Baum proclaims. Calix is using the SCK23000 chipset in their 48 port gig+ DSLAM at the show.

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