nanog mailing list archives

Re: Provider credibility - does it matter? was Re: Inter-provider relations


From: Vadim Antonov <avg () quake net>
Date: Fri, 25 Oct 1996 14:08:32 -0700

Roger Bohn <Rbohn () UCSD edu> wrote:

At 8:36 PM -0700 10/24/96, Vadim Antonov wrote:
Note that i didn't even talk about less measurabe, but way too
more important things like hosting of information suppliers.
Say, Big Provider connects 1000 web sites; Small Provider hosts
1 site -- benefit from peering in terms of Web site diversity to
the Big Provider's customers is 0.1%.  To Small Provider's
customers the benefit of peering is 99.9%.

Oops, this has an arithmetic fallacy.  Assuming that Big Provider also has
1000x more customers than Small Provider, and that all 1001 web sites are
equally attractive, then there are 1000 BP  customers each with a .001
chance of wanting to surf the SP web site.  Compare this with 1 SP customer
with a .999 chance of wanting to surf a BP web site, and a .001 chance of
surfing the SP web site.

No, this is not about mutual traffic -- this is about benefit to
_a_ customer.

Your computation is correct but is completely irrelevant from the
point of view of a customer.  They're interested in reacheability, not
traffic at some exchange point.

I.e. each small ISP's customer derives 99.9% of benefit from the peering,
while large ISP's customer derives only 0.01%.  Hence, the large ISP
can force small ISP to pay up -- without connectivity to a large ISP the
small ISP will be dead pretty soon.  This is exactly like grocery chains
which can (and do) force consumers to pay up for food -- although you
can grow your own tomatoes in your backyard and probably sell them to
those grocery chains.  Good chances are, they're not interested.

--vadim
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