Yeah, poor choice of terminology on my part perhaps. I was referring to the fact that a tier 1 provider was reachable via another tier 1 provider i.e. peered, so from the point of view of the endpoint traffic transits the first tier 1 to reach the second :-) Cheers, Gordon

-----Original Message----- From: Hamish MacEwan [mailto:hamish.macewan(a)gmail.com] Sent: Tuesday, 12 October 2004 11:45 a.m. To: NZNOG(a)list.waikato.ac.nz Subject: Re: [nznog] Ameritrade.com smtp server issue

And because they don't need transit, they are top tier. It is after all a self-fulfilling and self-referring definition.

Hamish.

On Mon, 11 Oct 2004 18:42:04 -0400, Joe Abley wrote:

...

They are peers. It's because the top-tier operators peer that they don't need transit.

Joe