Peering Traffic Volume
Richard A Steenbergen
ras at e-gerbil.net
Fri Mar 25 13:39:17 CDT 2011
On Thu, Mar 24, 2011 at 07:27:08PM -0400, Ravi Ramaswamy wrote:
> Hi All - I am new to this mailer. Hopefully my question is posed to the
> correct list.
> I am using 2.5 Tbps as the peak volume of peering traffic over all
> peering points for a Tier 1 ISP, for some modeling purposes. Is that
> a reasonable estimate?
The largest Tier 1's, like say Level 3, and god help me for saying it
but... Cogent, are certainly in or beyond that kind of ballpark. But
most of the smaller ones, like say AT&T, Qwest, ATDN (if you even still
want to count them), etc, not a chance in hell. And then there are
plenty of non tier 1 networks (and some that aren't even actual single
networks in the classic sense) that do far more traffic than that, for
example some of the large CDNs like Akamai and LimeLight.
On the modern Internet "most" of the traffic bypasses Tier 1 networks
completely, going directly from content networks to eyeball networks,
so the Tier 1's are effectively left as the higher priced and lower
capacity "last resorts" for the remaining traffic.
Richard A Steenbergen <ras at e-gerbil.net> http://www.e-gerbil.net/ras
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