[ARIN-consult] Fw: [ARIN-Suggestions] New Suggestion - ACSP 2016.4 - Waiting List for 2 Byte ASNs

[Scott Leibrand]

There are valid technical reasons, pertaining to communities, why ISP
networks with multihomed downstream BGP customers would be better served by
ASNs that can be represented by a two-byte number, with the other two bytes
all zeros.  Those technical reasons do not apply, AFAIK, to edge networks,
only to transit providers with BGP-speaking customers who want to use
communities to control route announcements.

-Scott

On Wed, Mar 30, 2016 at 5:13 PM, David Huberman <David_Huberman at outlook.com>
wrote:

> Apologies, but I have this data analysis done, and I dont want to lose
> it.   I can resend when the consultation officially opens.
>
>
> I just did a quick data analysis of the DFZ found on one of my routers.
>
> There are 601,729 unique routes originating from and transiting through
> 53,511 ASNs.
>
> 71,170 routes (11.8%) originate from or propagate through a 4-byte ASN.
> There are 10,244 (19.1%) unique 4-byte ASNs in my copy of the table.
>
> Given this data, I'm unclear why the registry should be treating 4-byte
> ASNs as anything but a single contiguous pool, as policy currently states.
>
> ________________________________________
> From: arin-suggestions-bounces at arin.net <arin-suggestions-bounces at arin.net>
> on behalf of ARIN <info at arin.net>
> Sent: Wednesday, March 30, 2016 4:28 PM
> To: arin-suggestions at arin.net
> Subject: [ARIN-Suggestions] New Suggestion - ACSP 2016.4 - Waiting List
> for     2 Byte ASNs
>
> We received the following suggestion on 18 March:
>
> Suggestion Details:
>
> Description: Waiting list for 2 Byte ASNs
>
> Value to Community: One member said to me:
>
> Ticket from ARIN "We have noted your request for a 2-byte ASN. ARIN is
> out of 2-byte ASN's in its inventory. We get them returned voluntarily
> from time to time. If we have one at the time of issuance, we will issue
> it to your organization. If we do not have a 2-byte in inventory at that
> time, your organization will receive the standard 4-byte ASN. "
>
> Member comment "if they are really out - a waitinglist would be nice...."
>
> On 30 March, we sent the following response to the submitter:
>
> Thank you for your suggestion numbered 2016.04 - Waiting List for 2 Byte
> ASNs.
>
> Background
>
> The NRPM included instructions in the past for ARIN staff to remove any
> distinction between 2-byte and 4-byte in the issuance of AS numbers.
> This particular policy language has since been retired in the NRPM.
>
> Staff has followed policy regarding issuance of AS numbers, but has
> often had lower numbered, classic 2-byte, AS numbers available over
> time. We would either receive them in our new delegations from the IANA,
> obtain them from customer returns of AS numbers, or through revocations
> of AS numbers due to non-payment of registration fees. Although ARIN
> expects to no longer receive AS numbers from the IANA inside the classic
> 2-byte range, we do expect to continue reclaiming them through returns
> and revocations going forward.
>
> Some AS number requests today continue to specifically ask for an AS
> number from the classic 2-byte range. In those situations we relay to
> the customer that we have noted their special request and that we will
> accommodate it at the issuance phase of the ticket process if one is
> available at the time.
>
> The Suggestion
>
> We understand your suggestion is to establish a waiting list for AS
> numbers from the classic 2-byte range for those customers who
> specifically request one when ARIN does not have them available. This
> waiting list would be similar to the IPv4 waiting list for unmet
> requests, but managed separately for AS numbers. Organizations would be
> placed on this AS number waiting list, and when one became available
> through reclamation at ARIN, it would be slated for the organization
> first on the waiting list.
>
> Staff Action
>
> ARIN staff can create a waiting list for 2-byte AS numbers if there is
> favor from the community to establish one. ARIN staff will open a
> consultation on the topic to gather feedback and take appropriate action
> based on information received through that process.
>
> Thank you for participating in the ARIN Consultation and Suggestion
> Process. We will leave this suggestion open until a consultation has
> been completed on this topic and an implementation plan has been
> established.
>
> Regards,
>
> Communications and Member Services
> American Registry for Internet Numbers (ARIN)
>
>
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