Re: Capacity/transit costs vs growth

On Wed, 27 May 2015 17:36:23 -0400, Jean-Francois Mezei said:

For instance, say end user average capcity usage increases 50% over 3 years, would the ISP's costs also increase by 50% ?

Depends. If the current gear had enough capacity to absorb the additional 50%, the ISP's costs didn't change. You were blowing 6Gbits/sec down a 10G pipe, and now you're pushing 9, you don't care. On the other hand, if you were pushing 8 and now need to push 12, you may have just bought a very expensive forklift upgrade to 40G. Drastically oversimplified, of course.