So why to simply replace the words “upstream provider” in the first sentence 
with “peer”?

Owen


> On Mar 22, 2022, at 11:15, Andrew Dul <[email protected]> wrote:
> 
> "To use an AS Number to interconnect with other Autonomous Systems." was 
> intended to apply to situations where a public ASN number was desired for 
> exchanging routes between organizations but where the concept of an "upstream 
> provider" wasn't appropriate.  An example might be if an there were two or 
> more organizations which are exchanging routes, but the organizations wanted 
> unique AS Numbers to ensure there are not any AS number collisions.
> 
> Hope this helps,
> Andrew
> 
> On 3/22/2022 10:46 AM, Owen DeLong via ARIN-PPML wrote:
>> Can someone clarify for me the meaningful difference between:
>> 
>> 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;
>> 
>> and
>> 
>> To use an AS Number to interconnect with other Autonomous Systems.
>> 
>> —
>> 
>> It seems to me that anything defined by the first sentence would be 
>> encompassed in the second.
>> 
>> Further, while I admit my imagination may be limited here, I am unable to 
>> imagine a useful implementation of the second sentence that would not also 
>> conform to the first and would require a unique non-private ASN.
>> 
>> While I can see useful instances for receive-only (non-originating) BGP 
>> sessions, such as route servers, etc., I’m hard pressed to see why they 
>> would need a unique public ASN. Even if they do, a useful route server is, 
>> by definition, multi-homed.
>> 
>> Not necessarily opposed to the policy as written, but think that it’s a lot 
>> of extra words with little actual value in terms of clarity and perhaps even 
>> muddying the waters a bit.
>> 
>> Owen
>> 
>> 
>>> On Mar 22, 2022, at 09:04, ARIN <[email protected] <mailto:[email protected]>> 
>>> wrote:
>>> 
>>> On 17 March 2022, the ARIN Advisory Council (AC) advanced the following 
>>> Draft Policy to Recommended Draft Policy status: 
>>>  
>>> * ARIN-2021-3: Private AS Number and Unique Routing Policy Clarifications
>>>  
>>> The text of the Recommended Draft Policy is below, and may also 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 Recommended Draft Policies on PPML prior 
>>> to their presentation at the next ARIN Public Policy Consultation (PPC). 
>>> PPML and PPC discussions are invaluable to the AC when determining 
>>> community consensus. 
>>>  
>>> 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 
>>>  
>>>   
>>>  
>>> 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 
>>> <http://www.arin.net/participate/policy/pdp/#4-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
>>>  
>>>  
>>>  
>>> _______________________________________________
>>> ARIN-PPML
>>> You are receiving this message because you are subscribed to
>>> the ARIN Public Policy Mailing List ([email protected] 
>>> <mailto:[email protected]>).
>>> Unsubscribe or manage your mailing list subscription at:
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>>> <https://lists.arin.net/mailman/listinfo/arin-ppml>
>>> Please contact [email protected] <mailto:[email protected]> if you experience any 
>>> issues.
>> 
>> 
>> 
>> _______________________________________________
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>> issues.
> 
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