[arin-ppml] Draft Policy ARIN-2023-2: /26 initial IPv4 allocation for IXPs

[Andrew Dul]

I'd also like to point out that we already have a method for refilling 
the IXP pool as needed.  The current policy states that ARIN should 
maintain at least a 3 year supply for these reserved pools and so far it 
would also seem that the returns to ARIN appear to be sufficient to add 
to the reserved pools as necessary.

https://www.arin.net/participate/policy/nrpm/#4-1-7-2-precedence-for-replenishment<https://www.arin.net/participate/policy/nrpm/#4-1-7-2-precedence-for-replenishment><https://www.arin.net/participate/policy/nrpm/#4-1-7-2-precedence-for-replenishment> 


Andrew

On 6/20/2023 10:10 AM, Chris Woodfield wrote:
> Speaking as the proposal author: It appears that a URL included in the draft language has been inadvertently eaten by formatting. The Statistics & Reporting link is here:https://www.arin.net/reference/research/statistics/#ipv4-reserved-pool-status-nrpm-4-10-ipv6-deployments
>
> I’ll also note that this page appears to have been updated since the policy was originally submitted - it now appears that the NPRM 4.4 Micro-Allocation pool is 65% allocated, with 35% remaining. (There’s a good chance I was rounding down when I said 50% in the problem statement)
>
> Thanks,
>
> -Chris
>
>> On Jun 20, 2023, at 08:54, ARIN<info at arin.net>  wrote:
>>
>> On 15 June 2023, the ARIN Advisory Council (AC) accepted “ARIN-prop-320: /26 initial IPv4 allocation for IXPs” as a Draft Policy.
>>   
>> Draft Policy ARIN-2023-2 is below and can be found at:
>>   
>> https://www.arin.net/participate/policy/drafts/2023_2
>>   
>> You are encouraged to discuss all Draft Policies on PPML. The AC will evaluate the discussion to assess the conformance of this draft policy with ARIN's Principles of Internet number resource policy as stated in the Policy Development Process (PDP). Specifically, these principles are:
>>   
>> * Enabling Fair and Impartial Number Resource Administration
>> * Technically Sound
>> * Supported by the Community
>>   
>> The PDP can be found at:
>>   
>> https://www.arin.net/participate/policy/pdp/
>>   
>> Draft Policies and Proposals under discussion can be found at:https://www.arin.net/participate/policy/drafts/
>>   
>> Regards,
>>   
>> Eddie Diego
>> Policy Analyst
>> American Registry for Internet Numbers (ARIN)
>>
>>
>> Draft Policy ARIN-2023-2: /26 initial IPv4 allocation for IXPs
>>
>> Problem Statement:
>>
>> Per NRPM Section 4.4, ARIN has reserved a /15 for micro-allocations for critical internet infrastructure, such as internet exchange points (IXPs) and core DNS service providers. The majority of these allocation requests are made by IXPs. As of the last ARIN report, roughly half of this reservation is allocated (see Statistics & Reporting  Projections from ARIN staff suggest that at current allocation rates, the remaining reserved space may be exhausted in the next few years.
>>
>> In parallel, an analysis of PeeringDB data conducted by the RIPE Address Policy Working Group shows that approximately 70% of global IXPs have fewer than 32 members registered with that site. An IXP this size could readily operate with a /26 allocation, which would provide 100% overprovisioning beyond their existing peer count. (Source:https://github.com/mwichtlh/address-policy-wg  )
>>
>> Unlike other types of allocations, IXP peering networks are not required by member networks to be globally reachable; only members of the IXP must be able to reach the prefix. As such, there is no technical requirement that an IXP allocation must be no smaller than a /24.
>>
>> Policy statement:
>>
>> Existing text:
>>
>> 4.4. Micro-allocation
>>
>> ARIN will make IPv4 micro-allocations to critical infrastructure providers of the Internet, including public exchange points, core DNS service providers (e.g. ICANN-sanctioned root and ccTLD operators) as well as the RIRs and IANA. These allocations will be no smaller than a /24. Multiple allocations may be granted in certain situations.
>>
>> Replace with:
>>
>> 4.4 Micro-allocation
>>
>> ARIN will make IPv4 micro-allocations to critical infrastructure providers of the Internet, including public internet exchange points (IXPs), core DNS service providers (e.g. ICANN-sanctioned root and ccTLD operators) as well as the RIRs and IANA. These allocations will be no smaller than a /26 for IXPs, or a /24 for other allocations that require global reachability of the assigned allocation. Multiple allocations may be granted in certain situations.
>>
>> 4.4.1 Micro-allocations for Internet Exchange Points (IXPs)
>>
>> An IXP requesting an initial IPv4 allocation from this reserved space will be assigned a /26 by default. An IXP requesting an allocation larger than a /26 must show an immediate need to utilize more than 25% of the requested allocation size upon initial commissioning.
>>
>> An IXP requesting an allocation under this section must have also requested, or already received, an IPv6 allocation for the same purpose under Section 6.10.1.
>>
>> An allocation made to an IXP under this section may only be used for the operation of its public peering LAN. No other uses are allowed.
>>
>> An IXP that has received an IPv4 allocation under this section may request a larger allocation once they have utilized more than 50% of their existing one. Upon receiving the larger allocation, the IXP must migrate to the new allocation and return their previous one to ARIN within 6 months.
>>
>> Comments:
>>
>> This proposal mirrors RIPE policy proposal 2023-01 (seehttps://www.ripe.net/participate/policies/proposals/2023-01) which is currently under consideration in that region and appears to have sufficient community support for adoption at the time of this writing.
>>
>> Timetable for implementation: Immediate
>>
>>
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