you seem to be thinking that this is a purely technical problem. it's
I can go there, on this point ...
and there are valid reasons for keeping humans in the loop, and slowing
things down, when trust is involved.
... and i can go that direction, on this point, but not all the way there.
It is possible to "keep a human in the loop" without doing so in real time.
As Michael pointed out, we trust BGP4 with a lot (see the many NANOG
presentations on why this can be exciting, but we do), for many networks,
including the largest networks.
BGP4 does involve humans, because you can't do policy-based routing and
policy-based traffic engineering without a human telling BGP4 "yes, that
WOULD be the shortest path, but don't use it for THIS traffic because of
economic reason X".
But once humans tell BGP4 what the policy is, we pretty much trust the
protocol to "do the right thing" in selecting paths out of an AS, reflecting
current connectivity, without human involvement, until something goes
At least, that's the way it seems to me.
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