REeeeeely trying to wrap my head around multicasting, but I am having a difficult time of it. The basic concepts are straightforward but I'm getting lost in the configurations themsevles.
I understand how to enable it, join interfaces to it, specify sparse modes and all, but then I begin to get lost.
IGMP is for switches joining groups - but why do I specify it router to router? If I put a routers interface into a mode, should it automatically pick up the flow?
For my testing I've just been using a Ghost server, sending out a multicast stream for clients - which I can see with the sh ip mroute command. I don't have any host (pc) receivers set up - will this make a difference?
I'm assuming for the exam that I just have to know the basics, but perhaps I'm confused - as likely displayed by this post.
Any tips - any simpler posting or references for it? I have Cisco Press book and their info from their site.