[AusNOG] NBN Traffic Classes

[Aftab Siddiqui]

Hi All,

Just trying to understand something about NBN Traffic Classes.

As per NBN Product Tech Spec document:

"TC-4 is implemented as CIR at the CVC, meaning that CVC TC-4 capacity
cannot be shared with other CVCs or traffic classes across the NNI."
Which make sense, but then why you need TC-1 and TC-2 for a CVC? Is there
any use case for that? Probably voice but then what is the impact of using
a TC-1 AVC over TC-4 CVC? IMO the current congestion point is last mile
only or its a wrong assumption?

Anyone would like to share (offlist) if they are using any traffic class
other then TC-4 (or generally unmarked) for CVC.

Best Wishes,

*Aftab Siddiqui*
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