[AusNOG] Contention, congestion, and link capacity planning

[John Edwards]

https://www.accc.gov.au/media-release/accc-releases-quarterly-report-on-the-nbn-wholesale-market-3

The ACCC says that on average; Australian consumers are using 1.09mbps per
service.

Don't underestimate Netflix in your calculations.

John


On 18 September 2017 at 12:11, paul+ausnog at oxygennetworks.com.au <
paul+ausnog at oxygennetworks.com.au> wrote:

> Hi All, I was hoping to gain some thoughts from the list around contention
> and backhaul link capacity planning.
>
>
>
> We are working on some new site plans and have plenty of existing sites to
> draw usage statistics from when it comes to capacity planning, typically
> all of our backhaul links are running pretty low contention as all of our
> customers are business customers, but I am wondering if anybody has any
> formulas they have used successfully in the past.
>
>
>
> Being that we only provide business Ethernet connections planning is
> usually pretty straight forward, but in modelling some expansion plans I
> want to try and actually wrap something around the planning process for
> backhaul capacity.
>
>
>
> For example, 1 x 50M customer will clearly need 50M of backhaul from the
> POP they connect to, but what about 2, or 4, or 10 ?
>
> You could easily surmise that 2 x 50M customers don’t need 100M of
> backhaul unless they are very heavy users, so let’s say they may need 75M,
> but this requirement for backhaul is realistically a sliding scale as the
> customers and bandwidth requirements grow the backhaul is not necessarily
> going to need to grow at the same rate.
>
>
>
> I have worked this stuff out for some time now manually and had good
> results, our customers are happy, but I was hoping there would be some sort
> of calculation or formula that I could apply to some modelling figures
> which would give me a pretty close indication of requirements.
>
>
>
> Thanks in advance
>
>
>
> Regards
>
> Paul
>
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>
>
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