draft-jcurran-v6transitionplan-02.txt

[Fred Baker <fred@cisco.com>]

Thanks for this note, John. May I humbly request that, if you update  
it further, that you tag it draft-jcurran-v6ops-*? I tend to notice  
those a lot more easily than I do documents that don't reference the  
working group.

One question. I agree that the roll-out should be phased, and that  
providers world-wide need to take matters seriously, which I think is  
the high-order bit of your message. However, you provide very  
concrete dates on which cut-over events should take place, based on  
data which is the best available but is none-the-less somewhat  
approximate. We estimate that the IANA will hand out the last IPv4  
prefix in the neighborhood of the end of 2009; one could easily  
imagine the actual event happening either a bit earlier or a bit  
later, or some RIR policy changing that makes it a lot earlier or a  
lot later. For example, Geoff suggests that the ISPs will simply  
start buying and selling addresses out of their allocations. If they  
are contemplating doing that, given that the RIRs allocate them based  
on a detailed assertion that the organization allocated to really  
needs more addresses to run its business, I should think that the  
RIRs could get pretty fussy about that analysis.

So I wonder if the dates should be more approximate, or if operator  
fora such as NANOG or RIPE should be left room to diddle with them  
somehow.