Aussie BroadbandHelp CentreBusiness1. nbn™What is nbn™ TC-4 and TC-2?

Try our My Aussie app

Run service tests & raise support tickets
View current outages
Check & update your billing details
Check your usage; plus so much more

Visit the App Store or Play Store and download our new self-help app today!

What is nbn™ TC-4 and TC-2?

nbn™ Traffic Class 4 (TC-4) is the standard delivery method for general internet and data services across the nbn™TM broadband access network. TC-4 enables traffic across multiple access technologies, including fibre to the node (FTTN), fibre to the basement (FTTB), fibre to the curb (FTTC) and fibre to the premises (FTTP), and provides asymmetrical bandwidth profile with ‘best effort’ contention for non-critical applications, such as web browsing, email and streaming.

nbn™ Traffic Class 2 (TC-2) provides a higher performance delivery method for data and network services that requires consistent, predictable upload and download speeds. TC-1 enables a symmetrical bandwidth profile and provides a committed information rate with 1:1 contention and high-level guarantees around frame latency, jitter and loss characteristics. This is ideal for voice, video conferencing, e-commerce and business critical data services.

Return to Help Centre

Still not found what you're looking for?

Our team of experts would love to help you out. Speak to one of our friendly support staff today.

Wish to lodge a complaint? Click here for our online feedback and complaint form, and here for our Complaints Handling Policy.

Your privacy is important to us. For more information, view our privacy policy by clicking here.
Your information will not be shared.

Help Centre

Try our My Aussie app

What is nbn™ TC-4 and TC-2?

jump to

Still not found what you're looking for?

Our team of experts would love to help you out. Speak to one of our friendly support staff today.

Download our award winning self-help app

Home

Personal

Small Business

Enterprise

Sign Up Online