[LINK] One gigabit on NBN
Scott Howard
scott at doc.net.au
Mon Dec 9 09:44:43 AEDT 2013
On Sun, Dec 8, 2013 at 2:11 PM, Richard <rchirgwin at ozemail.com.au> wrote:
> The SMH's "$20,000 per month" presumes zero contention on the CVC - a
> gigabit clear channel.
>
> At 20:1 contention ratio, it'd be $1000 a month.
>
> Contention ratios are set not by NBN Co but by the retailer.
>
That presumes that you have enough customers in a specific area to be able
to handle such a high contention ratio for such a high (single) bandwidth
customer.
If you currently have 100 customers on 20Mbps via a single PoI, then at a
contention ratio of 20:1 that means you need ~100Mbps of connectivity.
Add in a single 1Gbps connection to the mix, and you need to upgrade that
100Mbps to at least 1Gbps - a 10 fold increase in speed, and a 10 fold
increase in cost.
Of course, if you already have hundreds or thousands of customers with
100Mbps on a single PoI, then you're correct - the required increase in
bandwidth would be much smaller.
Scott
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