Tuesday, 25 September 2018 06:32

NBN Co says transit network capacity doubled

NBN Co says transit network capacity doubled Courtesy NBN Co

The NBN Co, the company building Australia's national broadband network, has doubled the maximum capacity on its transit network from 9.6Tbps to 19.2Tbps per fibre link.

The transit network links hubs across Australia to the network that connects homes and businesses and also links to the 121 points of interconnect — mostly located at telephone exchanges — which is where ISPs connect their own network to that of the NBN.

In a statement, the company said the high-traffic fibre links between Eastern Creek and Asquith in Sydney, and the 3600km route between Brisbane, Queensland and Darwin would be the first to be upgraded to support these speeds.

Rollout to the remainder of the network would be phased out, the company added. The Darwin to Brisbane link is scheduled to go live in December and will support capacity growth on the Sky Muster satellite network.

The capacity upgrade is due to installation of new optical transmission technology — from network equipment maker Coriant’s CloudWave Optics — that supports per-wavelength transmission rates of 200Gbps on optical transport backbone networks. It can be upgraded to 400Gbps when needed.

NBN Co will deploy the new technology at PoI sites, large fibre access nodes and highly trafficked routes as demand dictates.

Chief network deployment officer Kathrine Dyer said: “Our transit network is the backbone of the NBN Co multi-technology mix that aims to provide Australians with access to fast services.

“This upgrade will ensure we can continue to deliver a reliable and high-quality broadband network for our wholesale customers even as high-bandwidth applications and the growth of Internet usage continue to drive demand for network capacity.

“We have a clear product roadmap to continually upgrade this network with extra capacity as demand grows.

"With the upgrade to CloudWave Optics technology, we will be able to further increase total capacity on our transit network. Coriant is helping us achieve these upgrades as we scale this build and move towards our goal of connecting eight million homes and businesses by 2020."

Subscribe to ITWIRE UPDATE Newsletter here


The much awaited iTWire Shop is now open to our readers.

Visit the iTWire Shop, a leading destination for stylish accessories, gear & gadgets, lifestyle products and everyday portable office essentials, drones, zoom lenses for smartphones, software and online training.

PLUS Big Brands include: Apple, Lenovo, LG, Samsung, Sennheiser and many more.

Products available for any country.

We hope you enjoy and find value in the much anticipated iTWire Shop.



iTWire TV offers a unique value to the Tech Sector by providing a range of video interviews, news, views and reviews, and also provides the opportunity for vendors to promote your company and your marketing messages.

We work with you to develop the message and conduct the interview or product review in a safe and collaborative way. Unlike other Tech YouTube channels, we create a story around your message and post that on the homepage of ITWire, linking to your message.

In addition, your interview post message can be displayed in up to 7 different post displays on our the iTWire.com site to drive traffic and readers to your video content and downloads. This can be a significant Lead Generation opportunity for your business.

We also provide 3 videos in one recording/sitting if you require so that you have a series of videos to promote to your customers. Your sales team can add your emails to sales collateral and to the footer of their sales and marketing emails.

See the latest in Tech News, Views, Interviews, Reviews, Product Promos and Events. Plus funny videos from our readers and customers.


Sam Varghese

Web Analytics

Sam Varghese has been writing for iTWire since 2006, a year after the site came into existence. For nearly a decade thereafter, he wrote mostly about free and open source software, based on his own use of this genre of software. Since May 2016, he has been writing across many areas of technology. He has been a journalist for nearly 40 years in India (Indian Express and Deccan Herald), the UAE (Khaleej Times) and Australia (Daily Commercial News (now defunct) and The Age). His personal blog is titled Irregular Expression.

Share News tips for the iTWire Journalists? Your tip will be anonymous




Guest Opinion

Guest Interviews

Guest Reviews

Guest Research

Guest Research & Case Studies

Channel News