[pim] MRIB and multiple RP's

["Bandar Al Turaif" <bturaif at gmail.com>]

Hi,

It is me again. I am a P.h.D candidate at SMU and working with Dr. Suku Nair on IPTV project using PIM-SM.
We
are exploring the possibility of having multiple RPs for a single
group. As you know the RP has no knowledge about the exact structure of
the tree. 
We need for the RP to know the tree structure to calculate the tree cost.

Here
is where my question comes, Is it possible for the RP to know the path
and cost to all DR's and then use that to find its tree cost? and if
so, is this path picked different for Unicast or Multicast since we
know that PIM uses RPF to set up the path to the RP?

Its all related to the MRIB and how it chooses the path and I really did not find any information for that.

Thank you kindly for your assistance.

-- 
With my best regards

Bandar Al-Turaif
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