NBN Co hits 230Gigabit... Capacity | Dirt Report

What NBN Co and Nokia demonstrated

NBN Co and Nokia conducted a technical trial to examine whether multiple optical systems could coexist on the same physical fibre. The demonstration included GPON, XGS-PON, 50G-PON and coherent optics, with more than 230Gbps of combined capacity achieved in the laboratory.

The trial was showcased at a Broadband Forum spring member meeting. It was a controlled technical demonstration rather than a live customer connection, a retail speed test or a service offered through an internet provider.

230Gbps is not a household internet speed

The most important distinction is between capacity and an individual customer’s speed. The 230Gbps figure represents the combined capacity demonstrated across the optical systems, rather than a symmetrical 230Gbps retail plan for one home.

A useful comparison is a road with several lanes: the total road capacity can be very high, while individual vehicles still share the available space. In the same way, access-fibre capacity is shared and depends on the network equipment, service configuration and plans made available to customers.

For most households, this trial will not produce an immediate change. NBN Co’s demonstration was not tested with retail providers, and there is no indication in the material that 230Gbps services are about to become available.

Why using existing fibre matters

The significance of the trial is the potential to upgrade the equipment and optical systems at each end of the connection without replacing the fibre cable already deployed. Fibre acts as the physical path for light, while the electronics and optics determine how the network uses that path.

NBN Co has historically used GPON for much of its fibre-to-the-premises network. XGS-PON provides a path towards 10Gbps symmetrical services, while the trial examined how that technology could coexist with 50G-PON and coherent optics. The demonstration therefore points to a multigenerational upgrade path rather than a single replacement of the entire access network.

That does not mean every existing fibre connection can automatically support every future service. The trial is a proof point showing that the technologies can operate together in the demonstrated environment. Turning that capability into widespread services would require further engineering, network upgrades and commercial decisions.

Who could benefit first

The immediate relevance is greater for organisations that move or process large volumes of data. The transcript identifies hospitals transferring medical images, data centres, cloud and artificial intelligence workloads, universities and large offices as examples of environments where greater capacity could be useful.

For residential users, the benefit is more likely to come indirectly and over time. As households add more connected devices and use increasingly data-intensive services, additional network capacity could provide more headroom. However, the trial alone does not demonstrate a particular improvement in peak-hour performance or guarantee faster speeds for current customers.

NBN Co’s broader challenge remains making higher-performing fibre connections and faster retail plans available in the real world. A laboratory capacity result is an indicator of future potential, not a replacement for completing upgrades or improving customer access to suitable services.