[ppml] Policy Proposal 2005-8: Proposal to amend ARIN IPv6 assignment and utilisation requirement - Last Call

Fri Apr 14 16:23:02 EDT 2006

Hi,

While I don't agree with this proposal (I still believe a default /48 should
be assigned to any end-site if is non-portable space), I would accept it, if
the final text of the policy make sure that an end-site has the right to
request to the LIR for being upgraded from the /64 or /56 to the /48 without
the need for a detailed justification (as otherwise may go against the
end-site right to privacy) and the end-site can get that upgrade at no extra
recurrent costs (a setup fee is acceptable if it match real costs for that
and a small recurrent cost which match the *real* cost for that space as
paid to the RIR will be also acceptable). Is also important that the user
upgrading from a /64 or /56 to a /48 don't need to renumber, so I will
suggest that the ISP need to keep reserved the complete /48.

For those that believe that reserving the /48 is a space waste, I will
suggest to understand that this can be changed in the future (possible in
hundreds of years, in my opinion) if we really come into a situation where
we have to use the reserved space, even if that means renumbering some or
all the end-sites (I'm considering that most of the end-sites that will fall
into this situation will be residential customers). Renumbering once in
hundreds of years should not be considered as a trouble, as most probably,
residential users don't keep the same provider for so long time ...

What I'm trying to avoid here is the situation that we have today which
users being forced to NAT and a single dynamic IPv4 address, which can turn
in a few years from now in something similar if you only get a /64 and need
/56 or /48.

Regards,
Jordi

> De: Member Services <memsvcs at arin.net>
> Responder a: <ppml-bounces at arin.net>
> Fecha: Fri, 14 Apr 2006 15:55:53 -0400
> Para: "ppml at arin.net" <ppml at arin.net>
> Asunto: [ppml] Policy Proposal 2005-8: Proposal to amend ARIN IPv6 assignment
> and utilisation requirement - Last Call
> 
> The ARIN Advisory Council (AC), acting under the provisions of the ARIN
> Internet Resource Policy Evaluation Process (IRPEP), has reviewed policy
> proposal 2005-8: Proposal to amend ARIN IPv6 assignment and utilisation
> requirement  and has determined that there is community consensus in
> favor of the proposal to move it to last call. The AC made this
> determination at their meeting at the conclusion of the ARIN Public
> Policy meeting on April 11, 2006. The results of the AC meeting were
> reported by the Chair of the AC at the member meeting. This report can
> be found at http://www.arin.net/meetings/minutes/ARIN_XVII/mem.html
> 
> The policy proposal text is provided below and is also available at
> http://www.arin.net/policy/proposals/2005_8.html
> 
> Comments are encouraged. All comments should be provided to
> ppml at arin.net. This last call will expire at 12:00 Noon, Eastern Time,
> April 28, 2006.
> 
> The ARIN Internet Resource Policy Evaluation Process can be found at
> http://www.arin.net/policy/irpep.html
> 
> Regards,
> 
> Member Services
> American Registry for Internet Numbers (ARIN)
> 
> 
> ###*###
> Policy Proposal 2005-8: Proposal to amend ARIN IPv6 assignment and
> utilisation requirement
> 
> This proposal would amend the IPv6 address allocation policies (ARIN's
> NRPM, section 6) regarding the definition of the default size of End
> Site assignments and the threshold value for End Site allocation
> efficiency, no longer assuming the fixed values for End Site assignments
> established by RFC3177. Many references to "/48" will need to be
> replaced by "End Site assignment".
> 
> for example, section 6.5.4.1 should be replaced as follows:
> 
> 6.5.4.1. Assignment address space size
> 
> End Users are assigned an End Site assignment from their LIR or ISP. The
> exact size of the assignment is a local decision for the LIR or ISP to
> make, using a minimum value of a /64 (when only one subnet is
> anticipated for the End Site) up to the normal maximum of /48, except in
> cases of extra large end sites where a larger assignment can be justified.
> 
> The following guidelines may be useful (but they are only guidelines):
> 
> - /64 when it is known that one and only one subnet is needed
> 
> - /56 for small sites, those expected to need only a few subnets over
> the next 5 years.
> 
> - /48 for larger sites
> 
> For end sites to whom reverse DNS will be delegated, the LIR/ISP should
> consider making an assignment on a nibble (4-bit) boundary to simplify
> reverse lookup delegation.
> 
> RIRs/NIRs are not concerned about which address size an LIR/ISP actually
> assigns. Accordingly, RIRs/NIRs will not request the detailed information on
> IPv6 user networks as they did in IPv4, except for the cases described
> in Section 6.4.4 and for the purposes of measuring utilization as
> defined in this document.
> 
> also, section 6.9 will need to be replaced:
> 
> 6.9. IPv6 Reassignments policy
> 
> The size of IPv6 address assignments to End Sites is to be determined by
> the ISP/LIR.
> 
> ISPs and LIRs may choose whether to make changes to their procedures for
> assigning address blocks to End Sites. The threshold End Site allocation
> efficiency level is between 20% to 50% for most ISPs and LIRs when based
> on a 0.94 HD Ratio. ISPs and LIRs will need to operate address plans
> according to this target level of End Site allocation efficiency.
> 
> there's a need to change ARIN NRPM IPv6 Utilization:
> 
> The ARIN NRPM Section 6.7 will be amended so its IPv6 allocation
> utilization criteria will reflect the use of a /56 as the unit quantity
> in the calculation of the ISP or LIR's end site allocation efficiency.
> 
> Policy Rationale
> 
> The current IPv6 Address Allocation and Assignment Policy (section 6 of
> ARIN's NRPM) indicates that end sites should be allocated a /48 as a
> uniform allocation unit if using more than one host or one subnet.
> 
> This proposal alters the existing policy regarding LIR and ISP
> assignments to End Sites to allow the unit of assignment to be an LIR or
> ISP decision.
> 
> In assessing the address utilization efficiency for ISPs or LIRs, the
> definition of an End Site for the purposes of the calculation of ISP or
> LIR End Site allocation efficiency, is to be made according to a /56 size.
> 
> This measure, if undertaken generally by all RIRs, in conjunction with
> the further measures undertaken by the addressing community regarding
> increasing the HD ratio to 0.94, would increase the anticipated useful
> lifetime of IPv6 to encompass a period in excess of 100 years, in which
> case no further allocation policy changes would be anticipated.
> 
> A more detailed rationale is available in Geoff Huston's presentation on
> the subject, at RIPE 50, which can be found at:
> http://www.ripe.net/ripe/meetings/ripe-50/presentations/ripe50-plenary-wed-i
> pv6-roundtable-report.pdf
> 
> _______________________________________________
> PPML mailing list
> PPML at arin.net
> http://lists.arin.net/mailman/listinfo/ppml

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