Lauren Weinstein wrote:

  [ Of course, caps carry a definite profit center bonus as
    compared with throttling, at least when subscribers are being
    charged extra for exceeding the caps (and especially when those
    caps are relatively low).  That is, a circuit that is throttled
    but not capped will never bring in additional revenue since
    there's no cap to exceed (and so no "excess" data to charge
for). Note also that currently announced caps, even for similar
    technology and speed circuits, are varying widely from different
    companies.  This *suggests* that perhaps their levels are being
    set arbitrarily, or at least that's a reasonable assumption in
    the absence of public data to explain how these caps and related
    charges actually relate to claims of "degrading" other
    customers' traffic.

A more charitable interpretation: the ISPs have no idea what cap levels will be tolerated by consumers. So they are all guessing -- and maybe even trying different values from what other providers have announced -- in hopes of finding out what the results are.

Too high a cap will mean that they get no benefit -- traffic continues at rates that the ISP cannot sustain in its current business model. Too low a cap will send users running to FiOS or DSL as soon as they get their first bill with $500 in overage fees (and there's a good chance consumers will refuse to pay, in addition to switching).

As for those who will simply terminate customers who use "too much" bandwidth, one of my friends has a lovely gesture: sitting in a chair, he holds one foot out in front of him. Then gripping an imaginary revolver in his hand, he takes careful aim.

But of course a monthly bandwidth cap has only an indirect effect on the ISP's biggest problem: use of a lot of bandwidth in a short period of time, whether by P2P or by users viewing video. It's true that somebody who does this _all the time_ will also run up against the caps. But somebody who does it for a few hours will degrade service for others in the area (and/or force the ISP to buy more bandwidth from upstream providers -- if not already in a "no settlements" peering arrangement), but won't run up against the cap. And somebody who does it late at night will run up against the cap even though they do not degrade other users' experience.

I suspect what's happening, though, is that the business model designed in the 90s is simply bursting at the seeas, and all the ISPs are going to have to tear their hair for a while until they find a new, sustainable business model. Nothing surprising here. I commented earlier that finding a business model that works for 5 years is a miracle in this era of rapid technological change.

   [ In a truly competitive ISP marketplace, such "experimentation"
     with subscribers as the guinea pigs might perhaps be argued as
     justifiable.  But in the current constrained marketplace for
     most U.S. Internet users (as far as reasonably-priced access
     services are concerned) it's far less tolerable.  This is but
     another factor pointing at the possible need for regulatory
     intervention in this situation.  It is unfair that customer A
     forced to buy Internet service from cable company Y in one area
     may have a 250 GB cap, while customer B getting the same
     speed service from company Z in another area is facing a 40 GB
     cap -- or even 5 GB.  These are enormous differences that
     *will* negatively affect a wide range of Internet
applications, especially at the lower cap levels.
           -- Lauren Weinstein
              NNSquad Moderator ]


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