Re: Call for action vs. lost opportunity (Was: Re: Renumbering)

[Dave Crocker <dhc2 at dcrocker.net>]

David Conrad wrote:
> IPv6 _is_ IPv4 with more bits and it is being deployed that way.  

Probably not really.

That sort of equivalence statement applies when the new version is a minor 
upgrade to the previous, rather than require massive changes to the 
infrastructure AND to client applications. Having to run parallel stacks, 
having substantial changes to administration and operations, and having major 
changes to the minimum required set of capabilities is more than just a few 
more bits.

Deering's SIP qualified as such a minor upgrade (if an upward compatible 
addressing scheme had been chosen.)  The current IPv6 suite probably does not.

d/

--

  Dave Crocker
  Brandenburg InternetWorking
  bbiw.net

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