nanog mailing list archives

Re: Can an IXP sell IP transit?


From: Noah <noah () neo co tz>
Date: Mon, 4 Nov 2024 21:14:23 +0300

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, <fischerdouglas () 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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