nanog mailing list archives

Re: Capacity/transit costs vs growth


From: Valdis.Kletnieks () vt edu
Date: Thu, 28 May 2015 02:34:01 -0400

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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