[arin-ppml] Draft Policy ARIN-2015-10: Minimum IPv6 Assignments

Jason Schiller jschiller at google.com
Thu Oct 8 01:00:51 EDT 2015


I'm not sure I follow the impact of the change here.

Under current policy if an ISP assigns only /48s to each customer, then I
count the number of customer and consider than many /48s as fully utilized.

Under current policy if an ISP assigns only /56s to each customer, then I
count the number of customer and consider than many /56s as fully utilized.

Under current policy if an ISP assigns a mix of /48s to each large
customer, and /56s to each small customer
then I count the number of small customer and consider than many /56s as
fully utilized and,
I count the number of large customers time 256 and count that many /56s as
fully used.
(this means unused /56s out of a /48 are counted against you thus
discouraging mixed sizes).

Under current policy if an ISP assigns only /60s to each customer, then I
count the number of customer and consider that number divided by 16 as the
number of  /56s as fully utilized.


Under the proposed policy only the last case changes.

Under the proposed policy if an ISP assigns only /60s to each customer,
then those customers having a /60 (smaller than a /56) are not counted as
utilized by the ISP.


Is that correct?

In general I am not opposed to discouraging ISPs from giving out smaller
than a /56, unless the customer specifically requests a small block.


___Jason


On Mon, Sep 28, 2015 at 11:35 AM, John Springer <springer at inlandnet.com>
wrote:

> Thanks, Matt
>
> This is precisely the subject on which I hoped to get community feedback.
>
> John Springer
>
>
> On Sat, 26 Sep 2015, Matthew Petach wrote:
>
> OPPOSED
>>
>> How I subdivide and allocate addresses
>> internally and downstream is not a matter
>> for the community to vote on; that's between
>> me and my customers.
>>
>> Matt
>>
>>
>> On Wed, Sep 23, 2015 at 1:54 PM, ARIN <info at arin.net> wrote:
>>
>>> Draft Policy ARIN-2015-10
>>> Minimum IPv6 Assignments
>>>
>>> On 17 September 2015 the ARIN Advisory Council (AC) accepted
>>> "ARIN-prop-224
>>> Minimum IPv6 Assignments" as a Draft Policy.
>>>
>>> Draft Policy ARIN-2015-10 is below and can be found at:
>>> https://www.arin.net/policy/proposals/2015_10.html
>>>
>>> You are encouraged to discuss the merits and your concerns of Draft
>>> Policy 2015-10 on the Public Policy Mailing List.
>>>
>>> The AC will evaluate the discussion in order to assess the conformance
>>> of this draft policy with ARIN's Principles of Internet Number Resource
>>> Policy as stated in the PDP. Specifically, these principles are:
>>>
>>>    * Enabling Fair and Impartial Number Resource Administration
>>>    * Technically Sound
>>>    * Supported by the Community
>>>
>>> The ARIN Policy Development Process (PDP) can be found at:
>>> https://www.arin.net/policy/pdp.html
>>>
>>> Draft Policies and Proposals under discussion can be found at:
>>> https://www.arin.net/policy/proposals/index.html
>>>
>>> Regards,
>>>
>>> Communications and Member Services
>>> American Registry for Internet Numbers (ARIN)
>>>
>>>
>>> ## * ##
>>>
>>>
>>> Draft Policy ARIN-2015-10
>>> Minimum IPv6 Assignments
>>>
>>> Date: 23 September 2015
>>>
>>> Problem Statement:
>>>
>>> ISPs may believe that they have an incentive to obtain smaller blocks
>>> than
>>> they really need, and once they receive their allocation may subsequently
>>> issue blocks smaller than their customers may need in the future. This
>>> policy seeks to encourage the correct behavior by reiterating the
>>> smallest
>>> reasonable sub-allocation size and by discounting any space which has
>>> been
>>> subdivided more finely from any future utilization analysis.
>>>
>>> Policy statement:
>>>
>>> Modify section 2.15 from "When applied to IPv6 policies, the term
>>> "provider
>>> assignment unit" shall mean the prefix of the smallest block a given ISP
>>> assigns to end sites (recommended /48)." to "When applied to IPv6
>>> policies,
>>> the term "provider assignment unit" shall mean the prefix of the smallest
>>> block a given ISP assigns to end sites. A /48 is recommended as this
>>> smallest block size. In no case shall a provider assignment unit for the
>>> purpose of this policy be smaller than /56."
>>>
>>> Modify section 2.16.1 from "A provider assignment unit shall be
>>> considered
>>> fully utilized when it is assigned to an end-site" to "A provider
>>> assignment
>>> unit shall be considered fully utilized when it is assigned in full (or
>>> as
>>> part of a larger aggregate) to a single end-site. If a provider
>>> assignment
>>> unit (which shall be no smaller than /56) is split and assigned to
>>> multiple
>>> end-sites that entire provider assignment unit shall be considered NOT
>>> utilized."
>>>
>>> Comments:
>>> Timetable for implementation: IMMEDIATE
>>> _______________________________________________
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>>>
>>> _______________________________________________
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-- 
_______________________________________________________
Jason Schiller|NetOps|jschiller at google.com|571-266-0006
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