Fred Baker wrote:
What we need to do is figure out how to let the intelligent network
core work cooperatively with the intelligent edge to let it do
intelligent things. Right now, the core and the edge are ships in the
night, passing and occasionally bumping into each other.
Isn't that the essence of the problem though? That is, signaling between
trust domains is an inherently difficult thing to scale up? It seems to me
that even setting up static relationships within a semi-trusted domain is
pretty hard (say, so-called "Voice lans" or suchlike), but managing the
complexity of signaling just makes the eyes of operators to glaze over.
When I wrote that draft on rsvp vs. mobility vs. security ages ago, it
quickly became obvious that the combinatorics get quickly out of hand,
and that draft was just about the _theory_ of doing such a thing; gawd
help what the actual real life complexity is with different vendors, buggy
software, people trying to game such a system, etc, etc. Out of it I came
away with new appreciation for the power of Brute Force, and Ignorance
with respect to just throwing bandwidth at the problem.
So I guess I have to wonder whether ships in the night is such a bad
thing. One thing we do know is that reality has a tendency to distort
and magnify warts, even with seemingly "simple" applications. As
you add edge "tussles", the complexity seems to go through the
roof. Maybe these kinds of things can be done in small, centrally
marshaled deployments, but for the whole internet?
Mike, not advocating end-complexity-as-faith either
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