Jakob,
Three key specific questions one would ask about a model are:
Q1. Does it model the underlying physical system accurately.
In this instance, would it correctly compute the RIB size, given
a number of routes (i.e., total # prefix-paths) in the RIB?
Q2: Is it well rooted in the historical measurement data
for projecting into the future?
Q3: Are additional assumptions made for projecting into the
future reasonable? In this instance, are the assumptions regarding
the BGPSEC take rate reasonable?
Answers (IMHO):
For Q1: Yes. There is no guess work involved here.
I feel we've accurately factored in the update overheads
of BGPSEC based on draft-ietf-sidr-bgpsec-protocol-00.
For Q2: We used up to date historical measurement data from
>Do you trust this?
>http://www.ietf.org/proceedings/81/slides/sidr-2.pdf
>--
>Jakob Heitz.
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