After MFF is enabled, the switch processes IGMP messages and discards IGMP Query messages on the user side. However, when MFF and IGMP snooping are enabled simultaneously, the IGMP snooping module processes IGMP messages first. Therefore, IGMP Query messages are forwarded.
        Run the mac-forced-forwarding igmp-query discard command in the VLAN view to discard IGMP Query messages on the user side.