NBN Co explores twin ONT option for houses

 

Double your broadband ports.

EXCLUSIVE - NBN Co is considering an option that would allow users to attach an extra optical network terminal (ONT) to their house, effectively expanding the number of service providers they could use.

Network operations head Steve Christian told iTnews that NBN Co is "exploring multiple ONTs where demand is greater than four RSPs" [retail service providers].

Each ONT unit supplied by Alcatel-Lucent has four Gigabit Ethernet ports.

Each port is ordered by and then assigned to a single service provider (although there is nothing stopping a service provider from applying to deliver services on more than one port).

Under the plans being considered by NBN Co, non-standard ONT installations could now be supported by NBN Co, allowing households to install two ONTs - effectively doubling the number of available ports they had.

"It means that if a fifth access seeker comes along, customers can run it [through the second ONT]," Christian said.

Given the early stage of discussion, it was currently unclear in what circumstances NBN Co would consider allowing users to run a second ONT, and who would pay for it.

NBN Co also said yesterday that the four Ethernet ports on the ONT would be standard for customers receiving all forms of internet service - fibre, fixed wireless or satellite.

But ONTs with Analog Telephone Adapter (ATA) ports would only be supplied to customers getting a fibre connection.

"The others [ONTs for wireless and satellite users] won't have ATA ports because they're not the best solution for voice on those platforms," NBN Co operations staffer John King said.

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NBN Co explores twin ONT option for houses
"This could be the way to get moer than two telephone lines in a single premises, I surmise. For example, on the first ONT you might have one domestic number plus one home business number, and on ..."
By NotesTracker - Tony Austin
 
 
 
Comments: 3
Bob
Feb 4, 2011 9:11 AM
Sounds like an option of having two bums really. Whoever the sales guy is at Alcatel, I want him on my team.

So given that the multiplexers in the street only have a certain number of ports, does that mean that they are going to put in double the number?
adavion
Feb 4, 2011 12:09 PM
I don't understand why you need to map each different service to different physical ports.

Surely you should be able to rout to the subscriber's IP (and all their neighbours sharing the topology), hit their gateway and then allow the gateway to reconcile logical port allocations? i.e. the addressing and access control can be done using MAC addressing across all ports etc.

Also if you do have multiple (say N) RSPs connected to a subscriber over a single AVC, who pays what to whom? If the aggregated peak load required is X, but the cheapest price point is $24 per month for 12Mbps PIR then is the AVC levy N x $24 or is it the price point that is the next highest speed above X i.e. up to $150?

If it is the latter then how does NBN Co apportion the cost among the RSPs? If it is the former why is NBN Co collecting monopoly rent?

@Bob: It seems to me that the FDHs which have the 1:200 MUX will be multiplexing distribution fibre into multiple street level circuits containing all traffic across all ports and all IP addresses for the particular street circuit. These fibres will then be tapped before going on to ONT / NTUs. So as far as I can see the mere existence of the FDH seems to disprove the case for 2 ONT / NTUs; or prove that the design of the network is inefficient.....

Anyway I could be missing some things..... but then this level of detail is generally glossed over.
NotesTracker - Tony Austin
Feb 7, 2011 8:21 PM
This could be the way to get moer than two telephone lines in a single premises, I surmise.

For example, on the first ONT you might have one domestic number plus one home business number, and on the second ONT one or two extra numbers for the kids, or whatever. (We have three landlines in our home, at present, and I've been wondering what would happen with only the two phone jacks on a single ONT.)

Sound plausible? It hasn't been spelled out anywhere that I've seen so far.
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