UDP vs. TCP distribution [was: Re: [e2e] Can feedback be generated...]

[John Stevenson]

<< Most content just comes from wherever it happens to be hosted, and often
enough that's somewhere in California.  Works great. >>

Not so if the client is in Indonesia, or eastern Europe, or Egypt, etc., a long
or an indirect link over any big cable.

And recently not quite so even in California (when the resulting brownouts kick
in).

John Stevenson



Sean Doran wrote:

> | I would expect to see lots of content caching/distribution going on in the
> | transoceanic links such that multimedia traffic probably always gets
> | served from the nearest content server.
>
> I wouldn't.
>
> | If that is the case, how is the content getting replicated to these
> | different continents? Do the traffic statistics over the transoceanic
> | links capture this replication or are these being beamed over satellite?
>
> Some people (Yahoo, CNN, etc.) locate "european-flavour" servers in Europe,
> "cantonese-style" servers in Hong Kong, and so forth.   Some people use
> Akamai and their competitors, which seem to be locating stuff in various
> places around the world.  Most content just comes from wherever it happens
> to be hosted, and often enough that's somewhere in California.  Works great.
>
>         Sean.
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