Re: Just my ten pence..

[Marshall Eubanks <tme@21rst-century.com>]

Caitlin Bestler wrote:
> 
> > -----Original Message-----
> > From: owner-cdn@ops.ietf.org [mailto:owner-cdn@ops.ietf.org]On Behalf Of
> > Ashok Rao
> > Sent: Tuesday, February 20, 2001 12:15 PM
> > To: d2@embone.net
> > Cc: cdn@ops.ietf.org
> > Subject: RE: Just my ten pence..
> >
> >
> >
> >
> >
> > IP Multicast is great for live streams - a major stumbling point
> > is that the networks traversed from source to destination need to
> > be multicast enabled and participate in the exchange of multicast
> > traffic. However, multicast is not the solution for delivery of
> > on-demand streams or for static (or dynamically generated ) web
> > content due to the personalized nature of the interaction.
> >
> 
> Even more to the point, does anyone seriously envision any
> distribution plan where you could have enough concurrent
> receivers to justify using multicast *except* when the material
> is being provided live?

This is hard to see, except for pointcast like push scenarios
where each receiver gets more than it needs and selects what it
wants. 

I am not saying that I see that as a big business model, necessarily,
just that's the obvious exception to the live streaming model for multicast.

> 
> Yes, you could "wait a few seconds" to fetch the material. But
> how much material can be demanded within "a few seconds" for
> on-demand material? This is obviously only the very most popular
> material, which caching deals with very well.
> 
> Caitlin Bestler
> Chief Software Scientist
> Ikadega


                                   Regards
                                   Marshall Eubanks


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