[arin-ppml] Policy Proposal: Depleted IPv4 reserves

[Member Services]

> The AC will assign shepherds in the near
> future. ARIN will provide the names of the shepherds to the community
> via the PPML.

The ARIN Advisory Council shepherds for this proposal are Scott Leibrand
and Paul Andersen.

Regards,

Member Services
American Registry for Internet Numbers (ARIN)



Member Services wrote:
> ARIN received the following policy proposal. In accordance with the ARIN
> Internet Resource Policy Evaluation Process, the proposal is being
> posted to the ARIN Public Policy Mailing List (PPML) and being placed on
> ARIN's website.
>
> The ARIN Advisory Council (AC) will review this proposal at their next
> regularly scheduled meeting. The AC will assign shepherds in the near
> future. ARIN will provide the names of the shepherds to the community
> via the PPML.
>
> In the meantime, the AC invites everyone to comment on this proposal on
> the PPML, particularly their support or non-support and the reasoning
> behind their opinion. Such participation contributes to a thorough
> vetting and provides important guidance to the AC in their deliberations.
>
> The ARIN Internet Resource Policy Evaluation Process can be found at:
> http://www.arin.net/policy/irpep.html
>
> Mailing list subscription information can be found at:
> http://www.arin.net/mailing_lists/
>
> Regards,
>
> Member Services
> American Registry for Internet Numbers (ARIN)
>
>
> ## * ##
>
>
> Policy Proposal Name: Depleted IPv4 reserves
>
> Author:  Dan Alexander
>
> Proposal Version: 1
>
> Submission Date: 12/2/2008
>
> Proposal type: New
>
> Policy term: Permanent
>
> Policy statement:
>
> (add the following section to the nrpm)
>
> 4.1.8 Depleted IPv4 reserves
>
> A limit will be applied to all IPv4 address requests when ARIN's reserve
> of unallocated IPv4 address space drops below an equivalent /9. When
> this happens, an ISP or End User may receive up to a single /20 within a
> six month period.
>
> Rationale:
>
> As the reserve of IPv4 address space becomes smaller, there is a risk
> that many organizations will be denied resources by a large, last minute
> request. By implementing a throttle on the last of the IPv4 address
> space, a more limited group of organizations will be impacted, allowing
> many organizations to receive ongoing resources during the transition to
> IPv6.
>
> According to the ARIN statistics page
> http://www.arin.net/statistics/index.html, 1,993 organizations were
> issued IP space in 2006 and 2007. Of these allocations 41% of the
> applicants received less than a /20. On the opposite end, 82
> organizations received large blocks. Given that the last reserve of IPv4
> space cannot possibly meet the needs of the 82 organizations, the space
> could be managed in a way to provide for the needs of a wider base of
> consumers while the largest ISP's build momentum behind IPv6.
>
> The goal is to find a balance between the needs of organizations
> requiring space, and avoiding the restrictions on end user growth. For
> this reason, any caps on allocations should be implemented when the
> reserves are essentially depleted, rather than trying to restrict end
> user growth when IP space is still readily available.
>
> By putting a six month window on the maximum allocation, the remaining
> IP space could provide at least one year for everyone to implement other
> solutions while still being able to obtain an IPv4 address allocation.
> The time period was also added to provide a consistent rate of
> depletion, avoiding a scenario where a large organization could queue
> multiple, justifiable requests, resulting in the scenario the proposal
> is intended to avoid.
>
> Additional language may need to be added in the event a paid transfer
> policy is approved. The thinking is to have two pools of available IP.
> One being the current IANA allocated, reserve of IP space. The second
> being IP blocks recovered through monetary incentive. This proposal
> would apply to the IANA allocated reserves and would not apply to blocks
> made available by monetary means.
>
> An additional thought was to avoid tying this policy shift specifically
> to the last /8 allocated by IANA. This allows the policy to come in and
> out of play in the event that IPv4 address space is abandoned or
> returned to ARIN.
>
> Timetable for implementation: Immediate
>
>
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