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

Owen DeLong owen at delong.com
Tue Mar 8 22:54:17 EST 2022


I’m fine with all but the last change… The new wording is potentially more problematic than the old wording in that “current need” might imply that one needs to already be multi homed before one can get an ASN, which creates a bit of a catch-22 which is the reason for the “or immediately become…” language.

I suggest instead that we consider the following:

AS Numbers are based on current need, as set out in this section 5. However, a site which plans to begin exchanging inter domain routing protocols with other autonomous systems upon receipt of the ASN requested is considered to have current need.

This would, IMHO, have the clarifying effect which is sought in the problem statement.

Owen


> On Mar 8, 2022, at 06:51, ARIN <info at arin.net> wrote:
> 
> The following Draft Policy has been revised:
>  
> * ARIN-2021-3: Private AS Number and Unique Routing Policy Clarifications
>  
> Revised text is below and can be found at:
>  
> https://www.arin.net/participate/policy/drafts/2021_3/ <https://www.arin.net/participate/policy/drafts/2021_3/>
>  
> 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/ <https://www.arin.net/participate/policy/pdp/>
>  
> Draft Policies and Proposals under discussion can be found at:
> https://www.arin.net/participate/policy/drafts/ <https://www.arin.net/participate/policy/drafts/>
>  
> Regards,
>  
> Sean Hopkins
> Senior Policy Analyst
> American Registry for Internet Numbers (ARIN)
>  
>  
>  
> Draft Policy ARIN-2021-3: Private AS Number and Unique Routing Policy Clarifications
>  
> 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.”
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