[LINK] Is it true??? HFC can carry 100MBS ...

Sam Silvester sam.silvester at gmail.com
Wed Apr 1 09:13:04 AEDT 2015

My understanding is DOCSIS 3.1 can give a per segment bandwidth of 10Gbps
down / 1Gbps up, although I would expect if a certain amount of bandwidth
is used by Foxtel it may be lower in practice. It would seem NBNCo have a
plan to deploy DOCSIS 3.1 across their HFC networks (

That bandwidth is indeed shared between all users on a given cable segment
- the smaller you make each segment, the less oversubscription. What will
be interesting is seeing how NBNCo deal with the trade-offs between cost of
deploying more HFC nodes to make each segment smaller as bandwidth demands

On Wed, Apr 1, 2015 at 8:23 AM, Jan Whitaker <jwhit at janwhitaker.com> wrote:

> Can HFC carry 100 Mbps and later 1 Gbps? That's what Malcolm Turnbull just
> said on ABC radio. Can it do it without degradation or is it still a shared
> delivery system that dies the more people you put on it?
> If it's the latter, then we're being sold a very sick puppy.
> Jan
> I write books. http://janwhitaker.com/?page_id=8
> Melbourne, Victoria, Australia
> jwhit at janwhitaker.com
> Twitter: <https://twitter.com/JL_Whitaker>JL_Whitaker
> Blog: www.janwhitaker.com
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