Re: ARIN Consultation: Hierarchical AS-SET Names

[Michael Still via NANOG <nanog () lists nanog org>]

I'll save some effort / time for others and share some findings on this
based on researching this.

First, the referenced RFC 2622 does define the syntax as described which is
good, but it also lists a non-existent reference [20] for another doc on
exactly how this works in regards to value restrictions. I did some poking
and searching and found that RFC 2754 does indeed match the description of
the reference and also defines the restriction of the values for the
hierarchical 'set'. So this does validate for me.

Second thing I would consider is whether to set this hierarchical value
requirement to the 'route-set' objects as well. I am not suggesting that I
am in favor or not in favor of this but do note that the
hierarchical nature of the value may be enforced here as well if chosen.

As is, I support but encourage evaluation of whether to include 'route-set'
in the same restriction and document why or why not it was included.


On Wed, May 14, 2025 at 3:51 AM Job Snijders via NANOG <
nanog () lists nanog org> wrote:

> On Wed, May 14, 2025 at 07:43:51AM +0000, James Bensley via NANOG wrote:
> > I raised a request with ARIN to enforce the use of hierarchical AS-SET
> > names in the ARIN DB moving forward
>
> Thank you for taking this initiative!
>
> > ARIN have opened a consultation process, which closes on the 23rd of
> > May.
> >
> > If you would like to see ARIN also adopt the requirement for newly
> > created AS-SETs to have hierarchical names, please visit the following
> > page and contact ARIN to record your support for this request:
> https://www.arin.net/participate/community/acsp/consultations/2025/2025-1/
>
> I'd love to see this implemented for a few reasons:
>
> - helps reduce opportunity for (human) error
> - seems low hanging fruit to implement
> - no disruption to legacy configurations
>
> A more elaborate overview is available here:
>
> https://manrs.org/2022/12/why-network-operators-should-use-hierarchical-as-sets/
>
> Kind regards,
>
> Job
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>
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