PIM-Spare - Shared and SPT

Hi,

   Can some one point me in the right direction regarding the PIM sparse
operation. This is what I understand so far....
Pim sparse has a (*,G) entry between receiver and RP and an (S,G) entry
between source and RP.
After the first multicast packet is received PIM sparse forms an (S,G)
between source and receiver (SPT).

Is this the correct understanding ? I would appreciate if someone can
direct me to any link that explains pim sparse in depth.

Thanks,
Mike

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Received on Sun Dec 11 2011 - 23:53:10 ART