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

[Reuben Farrelly]

On 11/07/2014 1:51 PM, Mark ZZZ Smith wrote:
>> So real world scenarios will see the standard shitty average of
>> around 7mbps...which is deemed acceptable as its > 1.5mbps.
>
> Can you provide some evidence of this future FTTN 'standard shitty
> average of around 7mbps'?
>
> The following presentation shows that a lot of people are already
> getting close to or more than 7Mbps from ADSL1/2/2+. VDSL2/2+ should
> easily provide greater than that on shorter FTTN lead-ins.

I'm interested in why VDSL/VDSL2 hasn't become more widespread already, 
regardless of the NBN.  I thought the lack of it was to do with ACIF and 
regulations around interference on PSTN services, but as there are small 
pockets of VDSL already (TransACT, for example and now the NBN trial), 
perhaps that is not (or is no longer) the case.

Is the lack of VDSL deployment to date due to a technology problem, a 
regulation problem or an economic constraint?

Surely the ISPs installing DSLAM gear into exchanges didn't lock 
themselves into buying gear that cannot or could not be upgraded beyond 
ADSL2+ speeds?

Reuben