Re: Fraction of transit ASes going down? [Re: [RAM] TIDR using the IDENTIFIERS attribute]

[JUAN-JOSE.ADAN at giss.seg-social.es]

Pierre,

See my comments below.

Pierre Francois <pfr at info.ucl.ac.be> wrote on
25/04/2007 13:35:06:
> 
> Juan-Jose,
> 
> A simple question for you :
> 
> Where does the growth happen with the years ?
> I.e., how does this transit ratio evolve during the life of the internet
?
> + Same question with finer granularity than just transit vs. leaf.,
 if 
> possible.
> 
> I would like to know wether we're roughly just getting new leaves
or 
> close-to-be leaves, or if the growth is more homogeneous
> in the hierarchy.

When trying to find out the fraction
of transit AS-es I just
used the RIS Statistics Report provided
by RIPE. I didn't
use any script at all. I simply made
a number of calculations
using the last statistics reports and
found 1/6 as the 
approximate value. I don't understand
why this value differs
from the one calculated by Ricardo
and Simon. Any clue?.

Therefore I cannot answer your questions
properly. I think
it would be very interesting if we
could have a figure showing
the evolution of this fraction. And
I also suggested that it
is probable that its value would decrease
because of the
number of companies requesting a public
AS number to get
multihomed. This is just a personal
conjecture that I would
like to see contrasted with the real
Internet.

Regards,
Juanjo
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