[ppml] Policy Proposal: IPv4 Soft Landing (version 2.0)

Scott Leibrand sleibrand at internap.com
Wed Aug 22 20:00:31 EDT 2007

As mentioned before, I support the IPv4 Soft Landing proposal.  I would 
agree with David that:

    * The IPv4 Soft Landing proposal will not significantly impair
      networks' ability to obtain IPv4 space.
    * The proposal will encourage/require adoption of IPv6 where
      appropriate, thereby reducing demand for remaining IPv4 space.
    * The IPv4 Soft Landing proposal and the Decreasing Exponential
      Rationing proposal are sufficiently different that they should
      remain separate proposals.  I believe that they are somewhat
      complementary/orthogonal, in that either or both could be approved
      independently, depending on how we want to manage the IPv4 runout


David Conrad wrote:
> Marla,
> Thanks for the input.
> On Aug 22, 2007, at 2:12 PM, Azinger, Marla wrote:
>> -I don't support this.
> OK.
>> -Let it run out.
> An understandable position to take.  I'll admit I am somewhat  
> skeptical that governments around the world will be willing to accept  
> this approach.
>> Write a policy figuring out what ARIN does once contiguous requests  
>> cant be met.
> I agree. Regardless of the approach ARIN takes in the lead up to run  
> out, a policy proposing what should be done post run out would  
> definitely be warranted.
>> -If we do this and other RIR's don't we are just holding ourselves  
>> back from more allocations from IANA while others continue to  
>> receive more.
> As has been pointed out, the incremental approach of "Soft Landing"  
> would allow the ARIN community to revise the policy should it be  
> determined that the ARIN region is being disadvantaged.  In any  
> event, I will be proposing something like "Soft Landing" to the other  
> RIRs (missed the APNIC deadline, but hope to get something to RIPE  
> and AfriNIC soon).
>> -This is similar to another proposal.  We should combine Decreasing  
>> Exponential Rationing of IPv4 IP Addresses with this one if we want  
>> to look at an approach like this.
> While I will admit to not having been able to spend the time to fully  
> understand the "Decreasing Exponential Rationing" proposal, I do not  
> believe it to be that similar to "Soft Landing".  "Soft Landing" is  
> an attempt to encourage IPv6 deployment by explicitly adding  
> requirements that encourage migration of infrastructure and services  
> to IPv6, ultimately tying the allocation of additional IPv4 addresses  
> to demonstrations of availability of IPv6 services.  "Decreasing  
> Exponential Rationing" merely constrains the amount of IPv4 address  
> space being allocated.  Also, I think fixed thresholds of IANA /8s  
> are a lot easier for folks to understand than mathematical formula.
> Again, thanks for the input.
> Regards,
> -drc
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