[arin-ppml] Draft Policy ARIN-2014-21: Modification to CI Pool Size per Section 4.4

David Farmer farmer at umn.edu
Tue Dec 23 17:57:57 EST 2014

On 12/23/14, 14:50 , Martin Hannigan wrote:
> On Mon, Dec 22, 2014 at 5:48 PM, David Farmer <farmer at umn.edu
> <mailto:farmer at umn.edu>> wrote:
>     So far there has been very little discussion on this policy.
> Not really. I recall a huge thread previously that demonstrated much
> support. What's the hold up?

No hold up, the proposal was submitted a little more than week before 
ARIN 34. The AC Chair assigned shepherd, but there wasn't sufficient 
time to get it ready for the October AC meeting held at ARIN 34.  At the 
November conference call the AC accepted the proposal on to its docket, 
promoting it to Draft Policy, and it was posted to the list for discussion.

I went back and reviewed the thread, there was some support for the 
ideas that spawned the proposal, but no specific text was posted at that 
time.  Since the Draft Policy and the specific text was posted there has 
now been two statements of support and no opposition.

>     Therefore, as one of the AC shepherds for this policy I would like
>     to initiate some discussion of this policy.  Here are a few
>     questions for the ARIN community to think about and provide feedback on;
>     - The current CI reservation is for all CI not just IXPs, the
>     problem statement discusses growth primarily in the IXPs as
>     justification to expand the reservation.  Should we split off a
>     separate reservation pool for IXPs?  Or, keep the current common CI
>     pool?
> If you want to complicate this further, yes, let's do that. If not, are
> you suggesting that there still isn't a large enough reservation?
> I see some merit in your suggestion, but dragging this out beyond
> exhaustion doesn't sound like a wise idea. I'd go with a larger
> reservation if you are concerned and have data points.

I think /15 is probably big enough.  But, there is no guarantee that the 
/16 that will be added will be used for IXPs.  As shepherd, I'm just 
trying to make sure the community considers the issues.

>     - ARIN-2011-4 the policy that made the original CI reservation had a
>     Policy Term of 36 Months following implementation, but this was not
>     in the policy text itself and therefore did not get included in the
>     NRPM.
>     https://www.arin.net/policy/__proposals/2011_4.html
>     <https://www.arin.net/policy/proposals/2011_4.html>
>     If applicable, this would have expired July 2014.  So, should there
>     be expiration date included in this policy text?  If there should be
>     no expiration date, should we explicitly note the removal of any
>     expiration date in the discussion of this policy?
> I was the author of that revision and the author or this one. That was
> based on a belief in 2011 that ARIN would have been long out of v4
> addresses and v6 adoption would be well underway. Expiry in retrospect
> seems unnecessary since dual stacking is likely to prevail in CI for
> quite some time to come. As it should.

Ok, then I think we should make that intent explicit, "regardless of the 
status of the ARIN-2011-4 Policy Term, this policy intentionally does 
not include an expiration date for the CI reservation."

>     - There was discussion of smaller and larger than /24 IXP
>     allocations, like /26 on the smaller side and that some very large
>     IXPs are starting to need as large as a /22.  Also discussed was,
>     sparse allocation for IXPs to allow expansion without renumbering.
>     Should this policy includes any changes along these lines?  Why or
>     why not?
> There's nothing that codifies that an CI prefix can not be routed so
> linkage to the minimum allocation makes sense.

So keep a /24 minimum?

>     - Should we try to get this to the PPC at NANOG 63 in San Antonio as
>     a Recommended Draft Policy?  Or should it wait go to the PPM at ARIN
>     35 in San Francisco as a Recommended Draft Policy?  What about ARIN
>     free pool run-out timing?
> Speaking as an Open-IX community (board) member http://www.open-ix.org/
> and referencing previous discussions here that pointed there as well,
> there is a substantial and demonstrated amount of support for this.
> San Antonio.

I'd be happy to work toward getting this to San Antonio as a Recommended 
Draft Policy.  However, the normal path would be Draft in San Antonio 
and then Recommended Draft in San Francisco.  So, to justify 
accelerating this policy we need clear and strong support from the 
community for this policy.  Lukewarm support with no opposition is not 
sufficient to take this to San Antonio as a Recommended Draft Policy in 
my opinion as the shepherd.

>     Do you support the policy as written, if not are there any changes
>     that could be made that would allow you to support the policy?
> As written.
> Best,
> -M<


David Farmer               Email: farmer at umn.edu
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University of Minnesota
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Minneapolis, MN 55414-3029  Cell: 1-612-812-9952

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