Parameter to enable or disable IGMP snooping on the device. When enabled, the device will examine IGMP packets and set up filters for multicast traffic. The Internet Group Management Protocol (IGMP) is an internal protocol of the Internet Protocol (IP) suite. IP manages multicast traffic by using switches, routers, and hosts that support IGMP. Enabling IGMP makes the device to gather multicast group membership information by snooping IGMP packets, which helps the device switch IP multicast traffic to the ports where group members exist instead of flooding the traffic to every ports. IGMP have three fundamental types of message as follows: Message Description Query A message sent from the querier (IGMP router or switch) asking for responses from each host belonging to a multicast group. Report A message sent by a host to the querier to indicate that the host wants to be or is a member of a given group indicated in the report message. Leave A message sent by a host to the querier to indicate that the host has quit to be a member for a specific multicast group. The IGMP snooping functionality is configured on a vlan basis. To enable or disable IGMP snooping on vlans: 1. set igmpSnoopingStatus to enable(1) or disable(2). 2. specify on which vlan IGMP snooping works by configuring each entries in the igmpSnoopingTable. As a result, you can turn on or off IGMP snooping functionality by setting igmpSnoopingStatus while keeping the configuration for each vlan. Or you can turn on or off IGMP snooping for a specific vlan in igmpSnoopingTable with the statuses on other vlan untouched.