Fundamentally, wouldnt that require the said IXP to be able to send full
internet feed (v4 +  v6) beyond the peering LAN routes?

In some jurisdictions, the regulators require Transit Providers to have
some sort of ISP license to sell such capacity.

Noah

On Mon, 4 Nov 2024, 19:46 Douglas Fischer, <fischerdoug...@gmail.com> wrote:

> Can an IXP sell traffic?
> This is a rhetorical question.
> I know that it can... In fact, it is obvious that it can.
>
> It is quite common to see several companies buying and selling traffic
> through IXPs.
> But whenever I have been involved with more serious companies, it was
> common for this type of traffic to be over a Bilateral VLAN between the
> Downstream and Upstream, and the ASs involved were from the operations
> themselves (different from the ASN used by Route-Servers).
>
> But I have seen a reasonably large scenario in which the IXP operator,
> maintaining the MLPA LAN with the pair of Route-Servers, adds another
> participant with the SAME ASN as the route-servers, and through this
> participant starts to sell traffic.
>
> This seemed very strange to me!
> And that is why I came to ask if this is correct or not.
> I would appreciate any guidance on the subject.
>
> In fact, there were other aggravating factors that worried me:
> - The IXP activation information itself (VLAN, IPv4/IPv6, Route-Servers,
> etc.) was indistinguishable from the information in the transit BGP
> session. And the extra Billing information for anything sent by the transit
> was not explicit.
> - The routes reported exchanged by this transit had the ASN transparency
> function in the AS-Path.
>
> Thanks in advance!
> --
> Douglas Fernando Fischer
> Engº de Controle e Automação
>

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