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Swarm's embedded operating system can use version 1, 2, or 3 for the IGMP packets. Swarm defaults to version 2 and the "igmpVersion" parameter is used to change it if necessary. So, for example, if you want Swarm to use IGMPv3 packets, you would set:
igmpVersion = 3
Caringo DataCore does not believe that IGMP snooping is a necessary feature to implement within most storage VLANs as the multicast traffic bandwidth is a small fraction of the overall traffic. Multicast signaling is the foundation of the Swarm clustering mechanism and it is crucial that all Swarm nodes receive the multicast transmissions from all other nodes.
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