Re: Can the RIRs bypass the IETF and do their own thing?

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Thus spake "Brian E Carpenter" <brc@xxxxxxxxxxxxxx>
Fred, the point is that ULAs should be unambiguous, so that if they
happen to meet (e.g. via a VPN, or following a merge of two previously
separate networks) there is no collision. Currently ULAs include
a pseudo-random prefix, which leaves open a theoretical possibility
of collision. Centrally-allocated ULAs would not have this issue.

The chance is negligible until you have a number of organizations interconnecting that approaches the AS count on the public Internet. Those who are uncomfortable with those odds can get PIv6 space. ULA Central does not solve any problems that the existing tools already solve, and it creates new problems of its own.

S

Stephen Sprunk      "Those people who think they know everything
CCIE #3723         are a great annoyance to those of us who do."
K5SSS --Isaac Asimov


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