[arin-ppml] ARIN-2024-5 community feedback needed re: IXP additional allocations

[Tyler O'Meara]

90 days seems reasonable to me, but I could be convinced of as high as 180.

Tyler

On Wed, 2025-05-14 at 09:27 -0700, Chris Woodfield wrote:
> Hello all,
> 
> While presenting Draft Policy ARIN-2024-5 at ARIN 55, it was noted in the room
> that the new Section 4.4 should include in the “Additional Allocations”
> subsection an accommodation for IXPs requesting an additional block where ARIN
> is unable to provide a sparse allocation, making the next-contiguous prefix
> unavailable. It was noted that IXPs should be able to receive a new allocation
> at the larger size, and be given sufficient time to renumber IXP
> infrastructure, along with their members’ peerings, to the new prefix and then
> return the original one once the renumbering is complete.
> 
> One critical question that comes from this: The policy must specify a deadline
> for which the original prefix must be returned to ARIN, and I’m interested in
> the community’s take on what that deadline should be. In my experience, IXP
> participants are given a fairly limited amount of time (typically 30-60 days)
> to renumber, but I believe that ARIN policy should be more generous here,
> because there are always corner cases and stragglers. On the other hand, IXPs
> might prefer to have a tighter window codified in policy, as that might give
> them additional context when engaging with IXP participants who don’t
> prioritize renumbering.
> 
> Comments welcome :)
> 
> Thank you,
> 
> - Chris
> 
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