ipv4's last graph

Mark Townsley townsley at cisco.com
Tue Feb 1 15:34:11 CST 2011


On Feb 1, 2011, at 9:11 PM, Geoff Huston wrote:

> 
> On 01/02/2011, at 7:02 PM, Randy Bush wrote:
> 
>> with the iana free pool run-out, i guess we won't be getting those nice
>> graphs any more.  might we have one last one for the turnstiles?  :-)/2
>> 
>> and would you mind doing the curves now for each of the five rirs?
>> gotta give us all something to repeat endlessly on lists and in presos.
> 
> but of course.
> 
> http://www.potaroo.net/tools/ipv4/rir.jpg

I can almost hear the cutting and pasting going on across the globe with this.

- Mark

> 
> This is a different graph - it is a probabilistic graph that shows the predicted month when the RIR will be down to its last /8 policy (whatever that policy may be), and the relative probability that the event will occur in that particular month.
> 
> The assumption behind this graph is that the barricades will go up across the regions and each region will work from its local address pools and service only its local client base, and that as each region gets to its last /8 policy the applicants will not transfer their demand to those regions where addresses are still available. Its not possible to quantify how (in)accurate this assumption may be, so beyond the prediction of the first exhaustion point (which is at this stage looking more likely to occur in July 2011 than not) the predictions for the other RIRs are highly uncertain.
> 
> Geoff
> 
> 





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