[arin-ppml] NRPM 4.10 - is a /10 large enough?

David Farmer farmer at umn.edu
Tue Apr 29 14:23:56 EDT 2014

If I'm not mistaken the reserved /10 for IPv6 deployment and /16 for 
micro-allocations is not included in the counter.  Could staff confirm 

Further, there is an additional approximately /10 that will come from 
the IANA recovered address pool.  I'm comfortable with this being 
reserved for special purposes, if we see fit.

However, I'm not comfortable with reserving more out of the current free 
pool at this point.  We are well past the point where making that kind 
of change can occur without causing potentially bad side effects.  Any 
drastic change in what is available for normal allocations at this point 
is likely create a panic.

We discussed this as a community, there were proposals to reserve larger 
chunks including the whole last /8 as RIPE and APNIC did.  We chose this 
strategy.  In some situations never is better than too late.

My best advice is find your towel and DON'T PANIC!



On 4/29/14, 12:54 , Bill Owens wrote:
> A couple of recent threads here and my general sense of the (lack of) urgency around IPv6 deployment has made me wonder whether setting aside a /10 under NRPM 4.10 - Dedicated IPv4 block to facilitate IPv6 Deployment - is really going to be enough. I was looking at Geoff Huston's graphs (http://www.potaroo.net/tools/ipv4/) and noticed that both RIPE and APNIC, by coincidence, will be using up the first /10 out of their reserved /8s at about the same time, near the end of this year. A naive calculation says that APNIC will go through the /10 in about 3.5 years, and RIPE in about 2.2 years. Of course it is difficult to predict how the runout of the reserved /10 under 4.10 will look, but I think it's reasonable to assume that it won't be any slower than 2-3 years, since unlike RIPE and APNIC there's no limit to how much space an entity can receive under 4.10, only the pace at which it can be handed out; assuming the maximum rate, a /22 can be issued to someone every two years,
>   ather than once and done as with the other two RIRs.
> Given that the inventory currently contains one /9 and one /10, we are getting close to the point where any additional set-asides will no longer be possible, so I thought it might be worthwhile at least considering whether the 4.10 pool ought to be enlarged while it still can be. . .
> Bill.
> _______________________________________________
> You are receiving this message because you are subscribed to
> the ARIN Public Policy Mailing List (ARIN-PPML at arin.net).
> Unsubscribe or manage your mailing list subscription at:
> http://lists.arin.net/mailman/listinfo/arin-ppml
> Please contact info at arin.net if you experience any issues.

David Farmer               Email: farmer at umn.edu
Office of Information Technology
University of Minnesota
2218 University Ave SE     Phone: 1-612-626-0815
Minneapolis, MN 55414-3029  Cell: 1-612-812-9952

More information about the ARIN-PPML mailing list