Recently I've started to read RFCs of different multicast standards and came out to the question, which is not totally clear for me. I'm trying to compare DVMRP vs PIM-DM routing protocols in order to understand which one is better, which one producing less multicast message while establishing route and during routing process at all. And which one of them is able to produce more sophisticated source tree.
Can you, please help me to figure out the answers for my questions?