Similar to IGMP (Internet Group Management Protocol) snooping, MLD snooping is a Layer 2
function of the switch. It does not require multicast routing to be enabled. MLD snooping
keeps track of MLD reports, and only forwards multicast traffic to that part of the local
network that requires it. MLD snooping is disabled by default on all VLAN (Virtual LAN)s. If MLD snooping is disabled on a VLAN, all MLD and IPv6 multicast
traffic floods within the VLAN. To enable MLD snooping, use the command: