Policy Proposal 2005-5: IPv6 HD ratio
| Policy Proposal Evaluation Status: | Author |
|---|---|
| Adopted - NRPM Sections 6.5.2.2 and 6.7 | Andrew Dul |
| Discussion Tracking | |
| Mailing List: Formal introduction on PPML on 25 May 2005 Last call from 31 October through 15 November 2005 |
Public Policy Mailing List |
| ARIN Public Policy Meeting: | ARIN XVI |
| ARIN Advisory Council: |
19 May
2005 |
| ARIN Board of Trustees: | 12 February 2006 |
| Revisions | Implementation |
| 17 February 2006 | |
Proposal
Policy Proposal 2005-5: IPv6 HD ratio
Author: Andrew Dul
Policy term: permanent
Policy statement: Change HD ratio used for IPv6 allocations to 0.94
This would modify sections 6.5.2.2 & 6.7 (including the HD-ratio to percentage table) of the NRPM.
Rationale:
Recent research has shown that based upon certain growth models
the current IPv6 allocation policy using the HD ratio of 0.8 will allocate
between a /1 and /4 of Ipv6 address space over the period of about 60 years.
http://www.ietf.org/internet-drafts/draft-huston-ipv6-hd-metric-00.txt
By changing the HD ratio to 0.94, this would require LIRs to have a higher
utilization of the /48s that are assigned to end sites before being able
to obtain additional allocations. This policy would change the threshold
for an LIR holding a /32 from approximately 11% to 51%. An LIR with a /20
would have a utilized percentage of approximately 31% vs. the current 2%.
This policy may also prevent the hoarding of IPv6 addresses by current organizations
with large customer bases, but no substantial current IPv6 network.
Timetable for implementation: Within 30 days of ratification by the BoT.