[AusNOG] Small Scale VDSL/2

[Joseph Goldman]

Hi Paul,

  To kind of answer your question and allude a bit more to the scenario 
of why I am asking for this on-list.

  My personal preference would be to have Ethernet to every subscriber. 
Much easier for switching and terminating. Much less things to go wrong.

  In my particular situation (typical FTTB situation), there may be some 
runs that exceed 100m, so we are going to have some difficulty in those 
situations.

  We also (as per my need for scalability) don't expect every occupant 
of this building to connect to us straight away, or some may never 
connect with us. We will have the superior product (in terms of speed 
availability), but some may have technical hurdles, and other products 
delivered over PSTN are available to them.

  Because of this, we do not want to fork out the labour for a run to 
every occupant, if it is  never going to be used. We also don't want to 
have to organise labour time and costs for each new subscriber 
incrementally. By going a VDSL2 DSLAM at the IDF, we are able to patch 
our product straight into their existing infrastructure with little to 
no change. Hell, they might not even replace their modem, get one hell 
of a good ADSL2+ sync speed and stick with that as current services are 
quite poor due to the line length back to the exchange in the area.

  Of course a part of the cost analysis for the project will include the 
realistic costs of running cat5/6 to every occupant at once, or costs of 
incremental rollout as needed, vs the cost of DSLAM hardware (of which 
you need some switching and routing in any case), which when compared to 
basic switching and routing will come out much dearer if you don't 
factor in labour.

/2c

P.S. only had one hardware suggestion so far - would appreciate more if 
you have any experience :)


On 19/09/13 18:27, Paul Gear wrote:
> On 09/19/2013 03:44 PM, Joseph Goldman wrote:
>> Hi List,
>>
>>  Looking for some hardware recommendations for small scale VDSL/2 
>> deployments. Looking for initial deployment to support 30-40 
>> subscribers with ability add more hardware and scale to possibly 
>> 200-300 subscribers.
>>
>> Thanks,
>> Joe
>
> Hi all,
>
> An adjunct question to this: if you had a new green field deployment 
> and had the option of going Cat5E & Ethernet vs. two-wire & VDSL2, 
> what considerations would dictate your choice of one over the other?  
> Assume that everything is within Ethernet distances. Obviously cabling 
> cost would be different, but given labour costs of installation, how 
> different is it likely to be, and would technical considerations 
> override cost?
>
> Regards,
> Paul
>
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