[AusNOG] "The NBN" will run on copper for *ever*

jake anderson yahoo at vapourforge.com
Fri Jul 11 17:37:34 EST 2014


On 11/07/2014 5:10 PM, Guy Ellis wrote:
> Hi Reuben,
>
> There are two reasons why there has been little VDSL2 deployment 
> locally...
>
> (i) Optimum loop length is ~<800m and the old exchanges are just too 
> far apart.
> You must have nodes in order get most subscibers <800m.
>
> (ii) In the case of iiNet, Optus and TPG their DSLAM rollouts were 
> completed last decade and are only ADSL2+.
> Given that we have known that some from of NBN has been coming for 
> years, and the CAN uncertainty, no operator in their right mind is 
> going to spend $$$$ on VDSL2 linecard upgrades, let alone think about 
> deploying nodes.
>
> There are no technology problems with VDSL2, other than the rules of 
> physics and Shannons law!
> FTTN has been already deployed in many countries using VDSL2.
> Hopefully Australia will see some benefits as a late-comer with 
> enhancements such Vectoring and Bonding.
> FTTH would be nice but it's not going to happen with this Government.
>
> Regards,
>  - Guy.
>
>
I always wondered why they never offered VDSL for customers closer than 
800m or so.
I mean it wouldn't cost them a *great* deal to add a few vdsl linecards 
to the mix.



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