Protocol Independent Multicast

Protocol Independent Multicast (PIM) consists of Layer 3 multicast routing protocols.

It provides different communication techniques for IP multicast traffic to reach receivers that are in different Layer 3 segments from the multicast groups sources. For earlier vSAN version 6.6 cluster, you must use PIM to enable the multicast traffic to flow across different subnets. Consult your network vendor for the implementation of PIM.