Re: The 100 Gbit/s problem in your network

[Stephen Sprunk <stephen () sprunk org>]

On 11-Feb-13 12:25, Mark Radabaugh wrote:
> On 2/11/13 9:32 AM, ML wrote:
> > Any eyeball network that wants to support multicast should peer with
> > the content players(s) that support it. Simple!
> >
> > Just another reason to make the transit only networks even more
> > irrelevant.
>
> The big issue is that the customers don't want to watch simulcast
> content.  The odds of having two customers in a reasonably sized
> multicast domain watching the same netflix movie at exactly the same
> time frame in the movie is slim.  Customers want to watch on time
> frames of their own choosing.   I don't see multicast helping at all
> in dealing with the situation.

Multicast _is_ useful for filling the millions of DVRs out there with
broadcast programs and for live events (eg. sports).  A smart VOD system
would have my DVR download the entire program from a local cache--and
then play it locally as with anything else I watch.  Those caches could
be populated by multicast as well, at least for popular content.  The
long tail would still require some level of unicast distribution, but
that is _by definition_ a tiny fraction of total demand.

S

-- 
Stephen Sprunk         "God does not play dice."  --Albert Einstein
CCIE #3723         "God is an inveterate gambler, and He throws the
K5SSS        dice at every possible opportunity." --Stephen Hawking

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