[arin-ppml] Draft Policy ARIN-2024-5: Rewrite of NRPM Section 4.4 Micro-Allocation

[Chris Woodfield]

In general, I support this proposal. 

Replying to selected points:

> On May 22, 2024, at 14:22, Tyler O'Meara via ARIN-PPML <arin-ppml at arin.net> wrote:
> 
> I support this change, but have a few suggestions:
> 
> 1) I'd use Critical Internet Infrastructure (CII) as the official term for this
> section; Critical Infrastructure seems a bit too vague.

I like this change. +1

> 2) Instead of "ARIN will reserve", should we change it to "ARIN has reserved",
> since the reservation has already occurred and there's no intention in the
> policy to keep the reserved block at a /15 equivalent?

note that section 4.1.7.1 includes a mechanism by which the reserved block will be replenished	(presumably via reclaimed resources), so we can’t assume that it will only be a /15 going forward. See https://www.arin.net/participate/policy/nrpm/#4-1-7-2-precedence-for-replenishment

> 3) Add the following sentence to the 2nd paragraph: "IP Addresses allocated
> under this section must only be used for the operation of CII".
>    The current wording permits an operator of CII to use 4.4 space for any
> purpose, which is likely not the intent.

I’m not going to speak for the authors, but I’d be in support of this language change. Usage of CII space outside the operation of CII does not likely fit with the communities expectations for this space (The community is welcome to disagree with me on this, of course).

> 4) In "Assigned addresses may be publicly reachable at the operators discretion
> and be used to operate all of the Internet Exchange's infrastructure" replace
> "operators" with "operator's".

Likely a typo, in support of fixing of course.

Thanks,

-Chris


> 
> 
> On Tue, 2024-05-21 at 12:26 -0400, ARIN wrote:
>> On 16 May 2024, the ARIN Advisory Council (AC) accepted “ARIN-prop-333:
>> Rewrite of NRPM Section 4.4 Micro-Allocation” as a Draft Policy.
>> 
>> Draft Policy ARIN-2024-5 is below and can be found at:
>> 
>> https://www.arin.net/participate/policy/drafts/2024_5
>> 
>> 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-2024-5: Rewrite of NRPM Section 4.4 Micro-Allocation
>> 
>> Problem Statement:  
>> 
>> The current NRPM Section 4.4 language hasn’t aged well. As the ARIN 53 policy
>> experience report demonstrated, 4.4 has also become difficult to implement by
>> ARIN staff. Growth and use of Internet Exchanges has also changed. The
>> overhaul seeks to improve technical soundness, respect the privilege of a
>> dedicated pool and to more closely observe conservation principles using
>> clear, minimum and enforceable requirements and underscoring the value of
>> routability of assigned prefixes as required.
>> 
>> ARIN 4.4 CI Assignments
>> 
>> The intent of this policy is not to unreasonably preclude the use of an
>> allocated or assigned prefix in servicing the needs of critical infrastructure
>> of the Internet.
>> 
>> ARIN will reserve a /15 equivalent of IPv4 address space for Critical
>> Infrastructure (CI) of the Internet within the ARIN RIR service area.
>> Assignments from this pool will be no smaller than a /24. Sparse allocation
>> will be used whenever practical. CI includes Internet Exchanges, IANA
>> authorized root servers, ccTLD operators, ARIN, and IANA. Addresses assigned
>> from this pool may be revoked if no longer in use or not used for approved
>> purposes. Only Section 8.2 transfers are allowed. Use of this policy for CI is
>> voluntary. ARIN will publish all 4.4 allocated addresses for research
>> purposes.
>> 
>> 4.4.1 Internet Exchange Assignments
>> 
>> • Internet Exchange operators must justify their need by providing the
>> following:
>> 
>> • A minimum of three initial participants connected to a physically present
>> ethernet switch fabric to be used for the purpose of Internet Exchange
>> facilitated peering
>> 
>> • Justification must include:
>> 	- Three unique participant names and ASNs not under common control
>> 	- Direct contact information for each participant
>> 
>> • Staff can reasonably validate hardware existence and participants intent
>> 
>> • Applicant Internet Exchange affiliated ASNs are not eligible to be included
>> in meeting the participant requirement
>> 
>> • Assigned addresses may be publicly reachable at the operators discretion and
>> be used to operate all of the Internet Exchange's infrastructure
>> 
>> 4.4.2 Root and ccTLD Assignments
>> 
>> Root and ccTLD operators will provide justification of their need and
>> certification of their status as currently active zone operators.
>> 
>> 
>> 
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