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Re: getting IPv6 space without ARIN (Re: PAT )

2000-08-25 02:00:02
Jon;

 >>Multihoming is not a hard problem.

to add to this

making multihoming transparent to the application within the IP level
is a hard problem, but is often _besides_ the point - failover and
fault tolerant applications WANT to know in a timely and explicut
manner when a link or interface fails - they do not want transparency
- some networks preople think that the applicatio nbuilders do (and
some naive applioaction writers do) but in any sophosticated realworld
(tm) fault tolerant application, transparency is not what is
wanted...so in that sense, the use of smarts in the appkcation layer
are exactly whats wanted and the problem of trying to do multihomeing
(and multi-provider multihoming) while maintaining address (and other
state) aggregation is a snare, edlusion and chimera...

Thank you for the additional explanation. Though the end to end
principle already implies the point (it's surprisng how many good
properties of the internet are reduced to the principle), its not bad
to make it explicite, before someone tries to defend IPv6 hype by
distorting the definition of "end to end".

Anyway, if IPv6 committee people are let alone, they will distort
the definition of multihoming something supported by their complex
protocol but totally useles in the realworld (tm), which was what
happened with IPv6 hype including autoconfiguration and renumbering.

Do you have any idea on how can it be avoided?

                                                Masataka Ohta