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Re: A new spin on multihoming: multihoming classes.
> From: RJ Atkinson <rja@inet.org>
>> my impression is that large (and small) providers would like fairly
>> stable routing which converges predictably in reasonable time. if that
>> can be done with ten, 100k, or 5,000,000 routes is not so important.
As has been discussed considerably, the likelihood of getting the predicate
("converges predictably in reasonable time") gets smaller as the number gets
larger.
> Some few folk think that somewhere between 100K and 300K prefixes it
> isn't stable .. when using current BGP and current BGP algorithms.
> ... I haven't seen any equations yet myself.
I doubt you will; the problem is too complex to analyze in closed form (it
will vary depending on the exact topology), and it's much easier to either
simply gather empirical data, or (for the really ambitious) do simulations.
Noel