Home' Future Building: The Australian Infrastructure Review : Issue 1 Contents R
r broadband future
ding and to who
To answer that question I need to explain what NBN Co will be
providing and to whom.
NBN Co is charged with the job of building a platform so that
premises and 12Mbps to the remaining 10 per cent.
The platform for the 90 per cent will be either GPON or Ethernet
per cent will be wireless or satellite, depending on location and
layer two, Ethernet based bitstream which will connect premises to
Points of Interconnect (PoIs).
The Points of Interconnect will be located where it is convenient
for access seekers to connect.
I am going to return to the subject of Points of Interconnect, but
You can see from the red and green elements on this chart
(Slide 6) how we are positioning NBN Co as a layer two bitstream
provider only. We simply move bits from a premise to a Point of
From the Optical Network Terminal (ONT) at the premise
and then to an Ethernet switch located at the PoI.
To coin a phrase we are the "network plumbers", providing
We expect there will be both wholesale service providers,
shown in grey, and retail service providers, shown in blue, who
will build services on top of our layer two platform.
They are the ones who will provide the services and applications
to the end customer and deal with issues above layer two, such as
We are designing the network so that the 100Mbps bitstream is
able to be partitioned logically.
This gives the end user the option of obtaining their voice,
Internet and video services from one service provider or several.
We will also be providing some sophisticated capabilities as
part of the bitstream service, such as multicasting, so that services
We are not restricted to carrying only today's services of voice,
video or Internet. We are agnostic to what is running on our
Ethernet platform, and so a range of new services can be carried
over this platform.
Returning to the question of Points of Interconnect (or PoIs). We
will locate them where there is contestable backhaul.
This will ensure that access seekers can reach any customer by
by backhaul from more than one backhaul provider.
There will be several types of PoIs deployed and I will show
two of these on the next slides.
Optical Network (GPON) systems connecting the premises within
the area served by the node.
In the node is an Ethernet switch to which access seekers can
connect. In this case there is contestable backhaul to the Fibre
If the Fibre Access Node is at a location where there is only
uncontested backhaul, then we need to do something different.
Fibre Access Nodes, as shown in this next slide (Slide 8), and haul it
back to a location where there is contestable backhaul.
Links Archive December 2010 Navigation Previous Page Next Page