Cisco Certified Network Professional (CCNP) Question: Download Questions PDF
Explain the difference between dense mode and sparse mode multicast.
Answer:
Dense mode multicast assumes all multicast neighbors want to receive all multicast traffic unless the neighbors have specifically pruned the traffic. Sparse mode multicast assumes multicast neighbors do not want to receive multicast traffic unless they have asked for it. Dense mode uses source-based delivery trees while sparse mode uses shared delivery trees where traffic is first sent to an RP.
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