Configures the version of Internet Group Management Protocol (IGMP) to handle older query messages if the system downgrades. If the system downgrades, the host with IGMPv3 only capability does not work. If you do not configure the system to downgrade the version of IGMP, the system logs a warning.
default ip igmp dynamic-downgrade-version
ip igmp dynamic-downgrade-version
no ip igmp dynamic-downgrade-version
Enabled
VLAN Interface Configuration