[arin-ppml] LAST CALL - Recommended Draft Policy ARIN-2021-3: Private AS Number and Unique Routing Policy Clarifications

[ARIN]

On 27 April 2022, the ARIN Advisory Council (AC) sent the following Recommended Draft Policy to Last Call:

 

* ARIN-2021-3: Private AS Number and Unique Routing Policy Clarifications 

 

Feedback is encouraged during the Last Call period. All comments should be provided to the Public Policy Mailing List. Last Call will expire on 16 May 2022.

 

The Recommended Draft Policy text is below and available at:

https://www.arin.net/participate/policy/drafts/2021_3/ 

 

The ARIN Policy Development Process is available at:

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

 

Regards,

 

Sean Hopkins

Senior Policy Analyst

American Registry for Internet Numbers (ARIN)

 

 

Recommended Draft Policy ARIN-2021-3: Private AS Number and Unique Routing Policy Clarifications  

 

AC Assessment of Conformance with the Principles of Internet Number Resource Policy:

 

Recommended Draft Policy ARIN-2021-3 conforms to the principles of the ARIN Policy Development Process as follows:

 

* By providing greater clarity concerning when a requesting organization qualifies for AS Numbers, it promotes fair and impartial number resource administration;

 

* It is technically sounds because it clarifies the technical requirements for obtaining AS Numbers (i.e., the need to interconnect with other organizations’ Autonomous Systems, what constitutes a “unique routing policy”, and the need to have a network plan); and

 

* Community support has been demonstrated throughout the process associated with its development.

 

Problem Statement:

 

At ARIN 47, staff identified three points of potential confusion with current text in NRPM Section 5: AS Numbers.

 

“Sites that do not require a unique AS Number should use one or more of the AS Numbers reserved for private use.” Some customers are not aware that their need for unique AS Numbers depends upon their need (or lack thereof) to interconnect with other organizations’ Autonomous Systems.

 

“In order to be assigned an AS Number, each requesting organization must provide ARIN with verification that it has one of the following…A unique routing policy (its policy differs from its border gateway peers)…A multihomed site.” Few customers qualify for AS Numbers under the “unique routing policy” requirement, because they don’t understand what “unique routing policy” actually means in practice.

 

“AS Numbers are issued based on current need. An organization should request an AS Number only when it is already multihomed or will immediately become multihomed.” All ARIN delegations are based on current needs, and some customers aren’t aware they need network plans when they request AS Numbers. Additionally, clarification that some organizations may have a unique need for an AS Number outside of utilizing a unique routing policy, such as one implemented using, for example, a protocol such as Border Gateway Protocol (BGP).

 

Policy statement:

 

In Section 5 -

 

Replace

 

“Sites that do not require a unique AS Number should use one or more of the AS Numbers reserved for private use.”

 

with

 

“If a unique AS Number is not required for a given network design, one or more of the AS Numbers reserved for private use should be utilized.”

 

Replace

 

“In order to be assigned an AS Number, each requesting organization must provide ARIN with verification that it has one of the following

 

* A unique routing policy (its policy differs from its border gateway peers) 2. A multihomed site”

 

with

 

“In order to be assigned an AS Number, each requesting organization must provide ARIN with verification that it requires a unique routing policy, such as a plan:

 

* To originate announcement of IP Number Resources via an accepted protocol (such as Border Gateway Protocol) from an AS Number different than that of its upstream provider;

* To multihome a site with one or more Autonomous Systems; or

* To use an AS Number to interconnect with other Autonomous Systems.”

 

Replace

 

“AS Numbers are issued based on current need. An organization should request an AS Number only when it is already multihomed or will immediately become multihomed.”

 

With

 

“AS Numbers are issued based on current need, as set out in this section 5.”

 

Timetable for implementation: Immediate

 

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