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[ih] Total Internet traffic [was: Ingrid Burrington on North Virginia]
On Mon, Jan 11, 2016 at 02:57:50PM -0500,
"Patrick W. Gilmore" <patrick at ianai.net> wrote:
> For instance, if you sample a large enough set of
> ???broadband??? ISPs in certain countries, you can
> find that the vast majority of traffic going down DSL/Cable modems
> come from 3 companies (Google, Netflix, Akamai). Is that
> ???all??? traffic? Of course not, but it is a
> valid, useful statistic.
And most of that traffic is edge-cached. Netflix, Google (it's mostly
YouTube I'm pretty sure), and I think Akamai as well, place their most
popular highest-volume data in file servers co-located in a lot of ISPs.
So most of that traffic probably never crossed an AS boundary or went
over a backbone. Yet it wouldn't make sense to measure overall Internet
traffic volume without counting the majority of YouTube+Netflix, would it?
In other words, using reasonable common-sense definitions, most
Internet traffic doesn't go over the Internet :)
-- Cos