back to article Gigabit-over-TV-cable spec DOCSIS 3.1 passes interop test

DOCSIS 3.1, a standard designed to deliver downloads at up to 10Gbps on existing hybrid fibre-coax cable television networks, has passed an interoperability test. The Data Over Cable Service Interface Specification (DOCSIS) standard is overseen by Cable Labs, a not-for-profit outfit that conducts research for the cable …

  1. Oli 1

    Great news, keep it coming!

    1. P. Lee

      re: great news

      Good for upgrades of existing short-distance services. For new cables/ADSL replacement, go fibre.

  2. Squirrel



  3. Bod

    Still though in the UK the coax part of the hybrid coax/fibre system, the last stretch to the house, is frequently the same old shitty cable installed in the 80s for analogue TV and is noisy and leaky as hell.

    1. david 12 Silver badge

      In Aus the CATV rollout was in the 90's. I've seen/heard no complaints about the physical condition of the cables.

      The real issue (though you wouldn't know it here), is that some people don't have adsl or cable, and for some of those, wireless is not suitable. These are the people who were hoping that the original central-committee "three year plan" was something more than wishfull thinking.

      1. Mark 65

        Anecdotally I can tell you my cable connection used to dick about when Foxtel and Cable broadband were in operation. Since we got rid of Foxtel it's solid as a rock.

    2. This post has been deleted by its author

  4. Anonymous Coward
    Anonymous Coward

    What's the frequency range?

    They must have upped it a lot to get a 10x boost, because they couldn't have got anything like that from more advanced modulation.

    1. startstuff

      Re: What's the frequency range?

      The 'frequency range' is the same as DOCSIS3.0 the thing that changed is the modulation (orthogonal versus QAM256), the number of bonded (upstream/downstream) channels and the 'split'.

    2. Voland's right hand Silver badge

      Re: What's the frequency range?

      They are bonding much larger number of channels. Modulation plays a role, but not as much. The big changer here is that with this cable is morphing from predominantly linear TV (channel) delivery mechanism into a data delivery mechanism. Cable ops are now expected to start delivering more and more of their content over IP as this frees channels used for content that nobody is watching on a particular HSFC strand at a particular time.

      1. Anonymous Coward
        Anonymous Coward

        Re: What's the frequency range?

        Ugh, so cable companies that go DOCSIS 3.1 will lose the ability for their subscribers to tune channels without a cable box, because they won't be broadcast on the cable unless the box requests them? Great, more revenue for the thieving cable companies since everyone needs a box for every TV now!

  5. Snow Wombat

    Key words her.... are

    " albeit over short distances."

    That is why I am not in the least bit excited about this new upgrade. I have heard stuff like this about ADSLx technology but the distances are always short enough to make the technology useless for bringing high speeds to home.

    You know what IS a proven technology for providing those speeds to homes ?

    Optic fiber !

    You know what most of us aren't getting thanks to Mr Turnbull ?

    1. poopypants

      Re: Key words her.... are

      We couldn't afford it before, and now that the bottom has fallen out of ore and energy exports, we can afford it even less. Sadly, you can't always have what you want.

      1. Snow Wombat

        yes but...

        Now is the time to build for the "next boom" or as Mr Keating put it "prime the pump", Money is cheap on the international markets, unemployment is creeping up and the economy is slowing back to the doldrums of the late 90's. Now is the time to build things like the NBN, High speed rail networks and other big ticket items.

        Debt isn't a bad thing when it's used properly to build infrastructure that will create the conditions for the next economic boom. Instead we have a govt that has consumed the "trickle down" yellow koolaid and is just cutting in the bad times, and then cutting it's own throat in tax reductions in the good times.

        Howard and Co pissed away the last boom by cutting taxes when they could have kept them where they were, and created a future fund for infrastructure like Finland has.

        So now we'll end up with a GST raise in the next few years, to pay for all the tax cuts and goodies for the baby boomers. Basically the next 20 yrs will be pandering to them because they are the biggest voting bloc in the country.

        1. southen bastard

          Re: yes but...

          the baby boomers helped build the cuntry you live in fuck wit!!!

          and now thanks to our lazy kids have to work till the day we die.

          Stop bitch'in and drink your yellow koolaid/

          1. Snow Wombat

            Re: yes but...

            >the baby boomers helped

            No, most of the major infrastructure was build and paid for by the prior generation, and was mostly done by the time the Boomers were old enough to start working (late 60s).

            The boomers actually really didn't build much infrastructure, but the benefited from the massive post war projects once they were done.

            >and now thanks to our lazy kids have to work till the day we die

            Rubbish, boomers are the ones getting all the benefits of superannuation (in Australia) while having paid the least into it. Boomers in other countries had access to jobs and wages much higher than my generation has, as well as free education.

            Not our fault you pissed away the best job conditions and wages in the last 100 years.

      2. Anonymous Coward
        Anonymous Coward


        But if you try sometimes, you just might find. You get what you need.

        Sorry for going all Mick Jagger there

      3. BlackKnight(markb)

        Re: Key words her.... are

        60 billion dollars over 10-12 years.

        6 billion or so a year or about 1.6% of the yearly revenue, invested into a government owned company that would have begin recouping the costs before it was finished.

        In comparision i spend about 2% of my budget on my internet and im on average wage.

        But No we really can't afford it can we.....

  6. s. pam

    Virgin will never deliver it, they can't even run the DNS properly

    To err is human, to totally fsck up requires Virgin so this will never happen with them.

    After all they can't even run the DNS right, nor give customers the ability to do so themselves.

    1. Mummy's 'ickle soldier

      Re: Virgin will never deliver it, they can't even run the DNS properly

      >Can't run DNS properly.

      1. Buy a decent router.

      2. Set Virgin media box to modem mode.

      3. Set DNS on new router to whatever you want, opendns etc.

      4. ?

      5. Profit!

  7. The Scarlet Pimpernel

    No saving the NBN

    NBNCo have stated repeatedly that they have no plans to upgrade to DOCSIS 3.1, including to a recent Senate Select Committee hearing. Proceedings are not yet available, but relevant bits are referred to in the article below.

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