The following Draft Policy has been revised:

* ARIN-2025-6: ARIN-prop-345: Fix formula in 6.5.2.1c

Revised text is below and can be found at:

https://www.arin.net/participate/policy/drafts/2025_6/
 
You are encouraged to discuss all Draft Policies on PPML. The AC will evaluate 
the discussion to assess the conformance of this Draft Policy with ARIN's 
Principles of Internet number resource policy as stated in the Policy 
Development Process (PDP). Specifically, these principles are:

* Enabling Fair and Impartial Number Resource Administration
* Technically Sound
* Supported by the Community
 
The PDP can be found at:

https://www.arin.net/participate/policy/pdp/ 

Draft Policies and Proposals under discussion can be found at:

https://www.arin.net/participate/policy/drafts/
 

Regards,

Eddie Diego
Policy Analyst
American Registry for Internet Numbers (ARIN)



Draft Policy 2ARIN-2025-6: ARIN-prop-345: Fix formula in 6.5.2.1c

Problem Statement:

Sections 6.5.2.1 explains the initial IPv6 ISP/LIR allocation in a way that is 
difficult to follow and the formula in section (c) does not match the remainder 
of the text.

Policy Statement: 
 
In 6.5.2.1c, replace:

"This calculation can be summarized as /N where N = P-(X+Y) and P is the 
organization’s Provider Allocation Unit X is a multiple of 4 greater than 
4/3*serving sites and Y is a multiple of 4 greater than 4/3*end sites served by 
largest serving site."

with:

"This calculation can be summarized as /N where N = P-(X+Y) and P is the 
organization’s Provider Allocation Unit, X is a multiple of 4 greater than 
4/3*log_2(serving sites) and Y is a multiple of 4 greater than 4/3*log_2(end 
sites served by largest serving site).

In 2.15 and 2.16, replace "provider assignment unit" with "provider allocation 
unit."

Comments: “Provider assignment unit” in section 2.15 was intended to match 
“Provider Allocation Unit“ in this policy section, but the words fell out of 
sync.

Timetable for implementation: Immediate





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