On Fri, 14 May 2010 15:36:09 -0700, Darren New wrote:

> Jim Henderson wrote:
>> Depends on how the router implements forwarding for multicast
> 
> Or, to phrase it differently, multicast is somewhat more point-to-point
> than a telephone party line is.

Not really, a party line is many-to-many, but multicast is one-to-many.  
The routers act as repeaters, but still operate a multicast "domain" (if 
you will) within their local network, as long as there's a client that 
has registered with the router to listen in on the multicast.

Jim

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