[Gllug] Consumer SDSL

[Paul Cupis]

On Fri, Aug 11, 2006 at 12:42:58PM +0100, Jason Clifford wrote:
> On Fri, 11 Aug 2006, Paul Cupis wrote:
> 
> > For example, BTwholesale charge ?80.5/month for 2Mbps SDSL backhaul to
> > the ISP plus the charges for using the BT Central (connection between BT
> > and the SP). The central cost if you wanted uncontended connecitivity
> > would be ~?200/month just for you (in reality you would be not using
> > 2Mbps all the time and it would be contended). Then there is
> > transit/services/support to take into account.
> 
> Your figures for the BT Central capacity are very wrong.
> 
> The price BT charge an ISP for Central capacity is about ?240 per Mb/s 
> hence a 2Mb line carries a potential cost to the ISP of nearly ?480/month 
> just for the Central capacity.

Yep, sorry I calcuated £200/Mbps/month and wrote £200/month. That was
assuming throughput of ~130Mbps on a 155Mbps central.

> Of course ISPs don't charge on that basis as to date usage patterns have 
> tended to be bursty allowing for contention to work. Currently many ISPs 
> are growing more concerned at the rise in persistent usage patterns 
> arising from long running p2p session and the growth in online 
> distribution of large media.

Agreed, as suggested by my previous post.

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