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.
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