Please be advised that the following policy proposal has been posted to the ARIN Public Policy Mailing List. All discussion of the proposal must take place on the PPML.
Regards, Member Services American Registry for Internet Numbers (ARIN) ## * ## 1. Policy Proposal: Predicable IPv4 Run Out by Prefix Size 2. Proposal Originator: David Farmer 3. Proposal Version: 1.0 4. Date: 8 June 2009 5. Proposal type: new 6. Policy term: permanent 7. Policy statement: Create a new subsection in section 4 of the NRPM; 4.X Maximum Allocation or Assignment during and after Run-Out When ARIN receives its last /8, by IANA implementing section 10.4.2.2, a maximum allocation and assignment size will be put into effect. The maximum allocation or assignment will be the next whole CIDR prefix less than or equal to one quarter (1/4) of the total unrestricted IPv4 resources available to ARIN for allocation or assignment at the time, but no longer than the applicable minimum allocation or assignment. All other allocation and assignment rules, requirements, or procedures apply in addition. If this maximum allocation or assignment provides insufficient resources, additional resources may be request after a three (3) month waiting period. This section (4.x) is applicable to allocations and assignments from ARIN's unrestricted IPv4 resources only, and is explicitly not applicable to resources received through Transfers to Specified Recipients per section 8.3, or any other specially designated resources. 8. Rationale: This proposal is intended to insure an equitable distribution of the remaining unrestricted IPv4 number resources available to ARIN once such resources are no longer abundantly available from IANA. Equity is achieved by insuring the available resources are spread among multiple entities and that no single entity may monopolize all of the resources available through a single request, at least until the maximum equals the minimum allocation or assignment size. Reducing the maximum allocation or assignment size in proportion to the amount of resources available should minimize, or possibly eliminate, the need to fulfill requests with multiple smaller blocks. Beyond providing predictability and order during the run out phase, this proposal provides an equitable means of distribution of resources if or when additional resources become available after ARIN has initially exhausted such resources. Such as if resources are returned, recovered by other means, or further resources are obtained from IANA. Other ratios, such as one half (1/2) or one eighth (1/8) could be considered. One eighth (1/8) would provide greater assurance of eliminating the need to use multiple blocks to fulfill requests and insure a greater number of entities receive resources. However, one eighth (1/8) is more likely to be seen as rationing and an attempt to artificially extend the lifetime of IPv4. During the ARIN XXIII policy discussion there seemed to be a consensus that attempts to extend the lifetime IPv4 resources would be undesirable. While on the other hand, one half (1/2) is less likely to ration the resources, it would likely result in the resource being spread across significantly fewer entities and increase the need to use multiple blocks to fulfill requests. Therefore, the ratio one quarter (1/4) is proposed as a compromise between competing sets of goals. 9. Timetable for implementation: Immediate _______________________________________________ ARIN-Announce You are receiving this message because you are subscribed to the ARIN Announce Mailing List ([email protected]). Unsubscribe or manage your mailing list subscription at: http://lists.arin.net/mailman/listinfo/arin-announce Please contact [email protected] if you experience any issues.
