[address-policy-wg] Application for AS number

On 07/05/2019 14:18, Aled Morris via address-policy-wg wrote:
> I'm in the process of helping a startup ISP get RIPE membership and
> resources and have hit against a little bit of poor wording in the AS
> guidelines RIPE-679, specifically:
> 
> *A network must be multihomed in order to qualify for an AS Number.*
> 
> The application for an AS number has been delayed because the NCC analyst
> working on the ticket is claiming the ISP has to be *already multihomed*
> before an AS can be issued.
> 
> This interpretation doesn't make any sense to me.  Surely the intention *to
> become multihomed* should be the requirement for obtaining an AS number?
> 
> I don't even see how you can be properly multihomed if you don't have an AS
> number.  Are we supposed to implement some kind of NAT multihoming first?
> 
> Can we look to change the wording in RIPE-679 to make this clear?

Pointing to RFC 1930 and pointing out you will want to move
- from "Single-homed site, multiple prefixes"
- to "Multi-homed site, multiple prefixes"
requires you be assigned an ASN.

You can ask the the NCC analyst, if it is alright to provide them with
agreements with existing upstream provider A and future upstream
provider B is sufficient to be assigned the ASN(?)

	-Christoffer

----

https://tools.ietf.org/html/rfc1930#section-5.1

   *    Single-homed site, multiple prefixes

        Again, a separate AS is not needed; the prefixes should be
        placed in an AS of the site's provider.

   *    Multi-homed site

        Here multi-homed is taken to mean a prefix or group of prefixes
        which connects to more than one service provider (i.e. more than
        one AS with its own routing policy). It does not mean a network
        multi-homed running an IGP for the purposes of resilience.

        An AS is required; the site's prefixes should be part of a
        single AS, distinct from the ASes of its service providers.
        This allows the customer the ability to have a different repre-
        sentation of policy and preference among the different service
        providers.
        This is ALMOST THE ONLY case where a network operator should
        create its own AS number. In this case, the site should ensure
        that it has the necessary facilities to run appropriate routing
        protocols, such as BGP4.