Configuring the IGMP Snooping Version
Context
Internet Group Management Protocol (IGMP) manages multicast group members and runs on the network segments where Layer 3 multicast devices connect to user hosts. IGMP has three protocol versions V1, V2, and V3. You can specify the IGMP snooping version on a Layer 2 device to enable the device to process IGMP messages of the specified version. Generally, the version specified on the Layer 2 device is the same as that configured on the Layer 3 multicast device. If IGMP is disabled on the Layer 3 multicast device, configure the same IGMP version as member hosts or a higher IGMP version.
Devices in the same VLAN must run IGMP of the same version. When hosts that run different IGMP versions exist in a VLAN, configuring IGMP snooping version to enable the device to process IGMP messages of different versions.