How big is the Internet?

Jay Ashworth jra at
Fri Aug 16 04:26:05 UTC 2013

----- Original Message -----
> From: "Patrick W. Gilmore" <patrick at>

> > I suspect that, to a first approximation, "traffic which passes through the
> > edge of at least one AS" is probably what most people think of as
> > 'Internet' traffic.
> As per my original post to this thread, that would remove all traffic
> from Akamai on-net nodes, Google's GGC nodes, Netflix's on-net Open
> Connect nodes, and many others.
> If you are a broadband network in many countries, that is well over
> half the traffic going down your customer's pipes.
> I think most people would alter their definition to count that
> traffic.

Ok, "to a zeroth approximation".

That said: it depends on what you're trying to measure, as has been 
pointed out before: the entire *point* of edge caching is "to get all
that duplicated traffic 'off of the Internet'," no?

> > As for your DNS question: the interior query isn't, per-se, but the
> > repeated one from your resolver/proxy *is*.
> I don't think the type of packet (DNS, HTTP, SMTP, etc. or even TCP,
> IP, ICMP) should matter.

The rest of those are generally not application-level proxied the way
DNS is with most consumer edge NAT routers.

-- jra
Jay R. Ashworth                  Baylink                       jra at
Designer                     The Things I Think                       RFC 2100
Ashworth & Associates         2000 Land Rover DII
St Petersburg FL USA               #natog                      +1 727 647 1274

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