Description: The table containing current IGMP information which was captured by this device, provided that swL2DevCtrlIGMPSnooping and swL2IGMPCtrlState of the associated VLAN entries are all enabled. Note that the priority of IGMP table entries is lower than the Filtering Table, i.e. if there is a table hash collision between entries in the IGMP Table and Filtering Table inside the switch's H/W address table, then Filtering Table entry overwrites the colliding entry of the IGMP Table. Also see the swL2FilterMgmt description.