It's actually very easy to explain. The InterNAP Flow Control (FCP) was designed to route traffic via the cheapest link available provided the link is within an operating range. Over the years the PNAPs have "preferred" different transit providers based on the underlying contract rate - but what rate could possibly be better than free(1)? So as time passes you will more than likely see more and more of AS22212 in your path. -Max 1. Peering is not free, but much less expensive than paying AT&T. On Mon, Apr 28, 2008 at 9:13 AM, Randy Epstein <repstein@chello.at> wrote:
Thurber,
PNET (AS22212) is looked upon by InterNAP's PNAPs (its various ASes) as just another transit provider in the mix.
So yes, InterNAP technically peers (under AS22212), but there is no guarantee its various PNAPs would choose that path, depending upon a number of factors.
(Disclaimer: This is what I've gathered from public information, not from information obtained under non-disclosure.)
Regards,
Randy
-----Original Message----- From: Thurber [mailto:ct@datagram.com] Sent: Monday, April 28, 2008 12:01 PM To: nanog@nanog.org Subject: [NANOG] Purpose of Internap's PNET AS22212
Can anybody shed some light on Internap's PNET AS22212? Specifaly how it relates to their PNAP architecture? Is Internap now doing peering? I was under the impression that their entire business model was based around isolated PNAPs and being a backboneless provider. Attempts at getting an explanation from Internap have been fruitless.
CT
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