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Re: survivability, rewriting
Is that true when you have a tree of reseller ISPs?
/ | \
ISP1 ISP2 ISP3
/ \ / \ / \
ISPA ISPB ISPC ISPD
Good question IMHO...
It is a case addressed in draft-ohta-multihomed-isps-00.txt.
But IMHO this is not how provider multihoming will be. IMHO ISPs will be
able to get a /32 each one, especially those ISP that are multi-homed to
multilpe upstream providers.
That you are trying to reserve space for 2^32 (or 2^29) such ISPs
means that you must expect that many routing table entries, which
is no acceptable.