[arin-ppml] ARIN-prop-159 IPv6 Subsequent Allocations Utilization Requirement

[Aaron Hughes]

On Mon, Nov 21, 2011 at 11:20:42AM -0800, Scott Leibrand wrote:
> Is there any limit to how big such tie downs could be?

Scott,

There is no limit in this proposal as it is meant to work for any size provider.

Keep in mind, this is for subsequent requests so it assumes they have already been approved for an initial allocation based on some assignment plan. ARIN staff is more than capable of sniffing out abusers vs those that are allocating to plan and have simply outgrown their initial allocation. There is no written limit proposed since there are folks who will tie down large amounts of space. If we were $very_large_provider and had, hypothetically, /32 tie downs in each location for (let's say) /48s for DSL/Cable customers, they would have already been approved for something like a /28 or /24, so it would not be unreasonable to request more without the % utilization IMHO.

On the other hand, if they were $small_provider, had 10 regions of 1000 customers (/48s) and tied down /36s, when they reached 15 regions, it would be perfectly reasonable to request an additional /32, but not a /28 or /24 without more justification than I am simply utilized to plan. (Clearly 1000/4096 is not considered utilized by current utilization definition in the NRPM and should be.)

Also keep in mind we are collectively advising people to make a 10 year plan and get over the IPv4 mindset. This means we should not have to plan for all regional/groupings of tie downs to get to 80% utilization at the same time.

BTW: I support this policy proposal.

Cheers,
Aaron

> 
> Scott
> 
> On Nov 21, 2011, at 10:37 AM, ARIN <info at arin.net> wrote:
> 
> > ARIN-prop-159 IPv6 Subsequent Allocations Utilization Requirement
> >
> > 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-159 IPv6 Subsequent Allocations Utilization Requirement
> >
> > Proposal Originator: Aaron Hughes
> >
> > Proposal Version: 1
> >
> > Date: 21 November 2011
> >
> > Proposal type: modify
> >
> > Policy term: permanent
> >
> > Policy statement:
> >
> > NRPM section 2.16 Utilized (IPv6)
> >
> > Add:
> >
> > 3. Tie down blocks shall be considered fully utilized, for the purpose of subsequent allocations, when the first reassignment is made from the tie down pool. (e.g. a /36 tie down for customer /48s will be considered utilized for subsequent allocations once the first /48 is assigned from the /36).
> >
> > Rationale:
> >
> > If you are executing to a long term plan, you should be able to continue to execute on your approved allocation and assignment plan regardless of the number of regions/groupings you originally planned for. We want to promote tie downs on nibbles and long term planning.
> >
> > Timetable for implementation: Immediately
> >
> > _______________________________________________
> > PPML
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> > Please contact info at arin.net if you experience any issues.

-- 

Aaron Hughes 
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