[AusNOG] Gosford City Council and NBN RSP.

[Mark ZZZ Smith]

----- Original Message -----
> From: Reuben Farrelly <reuben-ausnog at reub.net>
> To: ausnog at lists.ausnog.net
> Cc: 
> Sent: Wednesday, 28 May 2014 5:13 PM
> Subject: Re: [AusNOG] Gosford City Council and NBN RSP.
> 
> On 28/05/2014 4:01 PM, Beeson, Ayden wrote:
>>  Hey Mark,
>> 
>>  In its current form the MTM based NBN will not include separate RSP
>>  ports at all.
>> 
>>  AFAIK it's not even achievable in that form at all, maybe with
>>  virtual circuits ADSL style but I'm not 100% on that...
>> 
>>  Basically you will have 1 VDSL connected interface to 1 provider. Any
>>  additional services on the line will either not function or degrade
>>  your VDSL down and stop the vectoring working properly.
> 
> Is there any technical reason why a second/third PVC down an existing 
> ADSL or VDSL service wouldn't be able to achieve this exact same outcome 
> with existing technology?  You would then map PVCs to ethernet ports on 
> the back of an NTU.
> 
> Afterall, that's how things like FetchTV are (or can be) delivered 
> today, and especially if NBNCo manages the NTUs this stuff is pretty 
> easy to get right.
> 

The easy part is delivering the separate services to separate ports on an NTU.


It is also easy if the residential user is going to physically plug a single device into the dedicated NTU port, and you actively prohibit anything else from working e.g., locking down ports to a single MAC address. Switching between two ISPs would fall into this category as long as the customer doesn't expect or try to be connected to both at once.

The hard part is integrating it into the customer's existing residential network, and that is likely what customers are going to expect to be able to do.

Multicast Fetch TV to the home is relatively easy to deliver to the home because as people have guessed, it is delivered over another ASDL PVC, and the multicast stream is unidirectional from ISP to customer.

The hard part is BYO CPE support of multicast and multicast's failure to perform well over people's existing Wifi networks, necessitating either Ethernet over Power or dedicated cabling, and the CPE configuration complexity of creating another non-Wifi LAN segment - which is beyond the ability of most residential users. 

When it comes to a problem, the easy parts are easy, the hard parts are hard, and all problems are easy if you ignore the hard parts. 



> Reuben
> 
> 
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