Tony,
> Interesting idea. I think you really mean that you
want to have two
> different penultimate AS'es in the path. That's
certainly a hint.
Yes that was the scenario I had in mind.
> What about domains that are dual-homed to the same
provider?
Wouldn't that provider in most cases mask the immediately
connected to
the end AS link failure within his own AS ? I think we could
treat those
therefor as stub in the bigger picture of the 3.4 proposal.
> What happens when the alternate path is withdrawn?
I think we could solve that with some long enough timer ...
if the
alternate path is withdrawn for sufficiently long time the
non-stub site
becomes stub by the ASBR/RR which did the original marking
or has had
all the info to be a marker candidate.
Cheers,
R.
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