RE: Just my ten pence..

["Caitlin Bestler" <caitlinb@ikadega.com>]

> -----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?

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