[arin-announce] [Fwd: ARIN-prop-137 Global Policy for post exhaustion IPv4 allocation mechanisms by the IANA]

[ARIN]

The following is a new policy proposal that has been posted to the ARIN
Public Policy Mailing List for discussion on that list.

Regards,

Communications and Member Services
American Registry for Internet Numbers (ARIN)

-------- Original Message --------
Subject: 	ARIN-prop-137 Global Policy for post exhaustion IPv4 
allocation mechanisms by the IANA
Date: 	Tue, 08 Mar 2011 14:46:37 -0500
From: 	ARIN <info at arin.net>
To: 	arin-ppml at arin.net



ARIN-prop-137 Global Policy for post exhaustion IPv4 allocation
mechanisms by the IANA

ARIN received the following policy proposal and is posting it to the
Public Policy Mailing List (PPML) in accordance with the Policy
Development Process.

The ARIN Advisory Council (AC) will review the proposal at their next
regularly scheduled meeting (if the period before the next regularly
scheduled meeting is less than 10 days, then the period may be extended
to the subsequent regularly scheduled meeting). The AC will decide how
to utilize the proposal and announce the decision to the PPML.

The AC invites everyone to comment on the 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.

Draft Policies and Proposals under discussion can be found at:
https://www.arin.net/policy/proposals/index.html

The ARIN Policy Development Process can be found at:
https://www.arin.net/policy/pdp.html

Mailing list subscription information can be found
at: https://www.arin.net/mailing_lists/

Regards,

Communications and Member Services
American Registry for Internet Numbers (ARIN)


## * ##


ARIN-prop-137 Global Policy for post exhaustion IPv4 allocation
mechanisms by the IANA

Proposal Originator: Philip Smith
   co-authors: Alejandro Acosta, Nicolas Antoniello, S. Moonesamy,
   	Douglas Onyango, Medel Ramirez, Masato Yamanishi

Proposal Version: 1

Date: 8 March 2011

Proposal type: new

Policy term: permanent

Policy statement:

  The IANA shall establish a Recovered IPv4 Pool to be utilized post
  RIR IPv4 exhaustion.  The Recovered IPv4 Pool will initially contain
  any fragments that may be left over in the IANA.  It will also hold
  any space returned to the IANA by any other means.

  The Recovered IPv4 Pool will be administered by the IANA.  It will
  contain:

    a.  Any fragments left over in the IANA inventory after the last
        /8s of IPv4 space are delegated to the RIRs

       - The IANA inventory excludes "Special use IPv4 addresses" as
	 defined in BCP 153 and any addresses allocated by the IANA
	 for experimental use.

    b.  Any IPv4 space returned to the IANA by any means.

  The Recovered IPv4 Pool will stay inactive until the first RIR has
  less than a total of a /9 in its inventory of IPv4 address space.

  When one of the RIRs declares it has less than a total of a /9 in
  its inventory, the Recovered IPv4 pool will be declared active, and
  IP addresses from the Recovered IPv4 Pool will be allocated as
  follows:

    a.  Allocations from the IANA may begin once the pool is declared
        active.

    b.  In each "IPv4 allocation period", each RIR will receive a
        single "IPv4 allocation unit" from the IANA.

    c.  An "IPv4 allocation period" is defined as a 6-month period
        following 1 March or 1 September in each year.

    d.  The IANA will calculate the size of the "IPv4 allocation unit"
        at the following times:

        - When the Recovered IPv4 Pool is first activated
        - At the beginning of each IPv4 allocation period

        To calculate the "IPv4 allocation unit" at these times, the
        IANA will use the following formula:

            IPv4 allocation unit = 1/5 of Recovered IPv4 pool,
                                   rounded down to the next CIDR
                                   (power-of-2) boundary.

	No RIR may get more than this calculation used to determine
	the IPv4 allocation unit even when they can justify a need for
	it.

	The minimum "IPv4 allocation unit" size will be a /24.  If the
	calculation used to determine the IPv4 allocation unit results
	in a block smaller than a /24, the IANA will not distribute
	any addresses in that IPv4 allocation period.

    The IANA may make public announcements of IPv4 address
    transactions that occur under this policy.  The IANA will make
    appropriate modifications to the "Internet Protocol V4 Address
    Space" page of the IANA website and may make announcements to its
    own appropriate announcement lists.  The IANA announcements will
    be limited to which address ranges, the time of allocation, and to
    which Registry they have been allocated.

Rationale:

   The policy provides a mechanism for the ongoing distribution of
   IPv4 address space, while removing the areas that have been
   problematic in previous attemts at this proposal. The proposal:

    - Permits regional variation in runout policy amongst RIRs to
      be accounted for in the distribution of the Recovered IPv4 Pool

    - Prevents the possibility of a single RIR being eligible to
      be allocated the entire Recovered IPv4 Pool in the first
      (and perhaps only) allocation period

    - Removes two areas of policy that have failed to reach
      agreement in previous attempts at this proposal:

       - How addresses should be placed in the Recovered IPv4 Pool
       - References to how transfers should or should not take
         place

Timetable for implementation:

   Once consensus has been reached in each of the 5 RIR regions, the
   policy will be forwarded to ICANN for approval and then implemented
   by the IANA.