[arin-ppml] Request for Feedback: Draft Policy ARIN-2024-8 Restrict the Largest Initial IPv6 Allocation to /20

Tue Aug 13 11:17:16 EDT 2024

I’m in the wait and see camp. Opposed for now.

I think staff has proven to be vigilant about IP space overallocation with
all the practice they’ve had with v4. If they’re even half as strict with
v6 then there’s no actual problem here.

That said, a /16 is a REALLY big slice of the pie and it might be best to
put some additional parameters around what justifies that large of an
allocation.

Is /16 the new /8?

-Matt

Matt Erculiani

On Tue, Aug 13, 2024 at 08:17 Fernando Frediani <fhfrediani at gmail.com>
wrote:

> If in practice no organizations can justify that size of block I don't
> think restricting  is pramature really. And no one can.
> At least doesn't give any ideas to one that may think about creating a
> unexistant need.
>
> Fernando
>
> On Tue, 13 Aug 2024, 05:26 jordi.palet--- via ARIN-PPML, <
> arin-ppml at arin.net> wrote:
>
>> +1
>>
>> If any organization can justify the need for a /16, should be able to get
>> it.
>>
>> Even I will say, if any organization can justify, for example, a /12 (I
>> doubt it), should be able to get it.
>>
>> Limiting IPv6 deployments is a non-sense.
>>
>> Regards,
>> Jordi
>>
>> @jordipalet
>>
>>
>> El 12 ago 2024, a las 23:33, David Farmer via ARIN-PPML <
>> arin-ppml at arin.net> escribió:
>>
>> /16 is a reasonable limit; keep the current NRPM. One /16 allocation in
>> nearly a decade does not concern me. /16 allocations were intended to be
>> rare but possible; in fact, I believe the policy is functioning as
>> intended. If we see several additional /16 allocations in the next couple
>> of years, I could be convinced to reconsider my position. But at this
>> point, I think this policy is premature.
>>
>> Thanks
>>
>> On Mon, Aug 12, 2024 at 2:12 PM Elizabeth Goodson <
>> elizabeth.goodson at gmail.com> wrote:
>>
>>> Hello PPML,
>>>
>>> As lead shepherd on ARIN-2024-8, I'm reaching out for additional
>>> feedback from the community on this policy following the robust discussion
>>> here in June.
>>>
>>> The previous discussion did not come to a clear community consensus with
>>> opinions falling in multiple categories (in no particular order):
>>> - /20 is a reasonable limit, support the Draft Policy as written
>>> - /16 is a reasonable limit, keep current NRPM
>>> - Allow initial allocations above a certain size that are not on a
>>> nibble boundary (e.g. /19, /18, /17)
>>> - Add clarification about what designs would not justify a certain size
>>> initial allocation (e.g. 6RD)
>>>
>>> Questions for the community:
>>> - Do you support the draft policy as written?
>>> - If not, can the policy be changed so you would support it? What
>>> change(s) do you support?
>>> - Should the community continue to work on the policy or abandon it?
>>>
>>> Thanks,
>>> Liz Goodson
>>>
>>> ===============
>>> Problem Statement:
>>> In order to promote aggregation, the NRPM currently allows initial
>>> allocations up to a /16. However, the entire IPv6 address space only
>>> contains 65536 /16s, and the space allocated to IANA for globally routable
>>> purposes only contains 8192 /16s. Therefore, a /16 is a sufficiently large
>>> portion of the IPv6 address space that the goal of conservation starts to
>>> outweigh the goal of aggregation.
>>>
>>> Policy Statement:
>>> 6.5.2.1b: Replace "In no case shall an ISP receive more than a /16
>>> initial allocation." with "In no case shall a LIR receive more than a /20
>>> initial allocation."
>>> ==================
>>> _______________________________________________
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>>>
>>
>>
>> --
>> ===============================================
>> David Farmer               Email:farmer at umn.edu
>> Networking & Telecommunication Services
>> Office of Information Technology
>> University of Minnesota
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