The igmp-snooping enable command enables IGMP snooping in a traffic profile.
The undo igmp-snooping enable command disables IGMP snooping in a traffic profile.
By default, IGMP snooping is disabled in a traffic profile.
Usage Scenario
IGMP snooping is a basic Layer 2 multicast function that forwards and controls multicast traffic at the data link layer. IGMP snooping runs on a Layer 2 device and analyzes IGMP messages exchanged between a Layer 3 device and hosts to set up and maintain a Layer 2 multicast forwarding table. The Layer 2 device forwards multicast packets based on the Layer 2 multicast forwarding table.
After you disable IGMP snooping in a traffic profile using the undo igmp-snooping enable command, all IGMP snooping configurations in the traffic profile are deleted. When you run the igmp-snooping enable command to enable IGMP snooping again, all IGMP snooping configurations are restored to the default settings on the device.
Prerequisites
The traffic profile has been created using the traffic-profile (WLAN view) command.
The igmp-snooping enable command is used to enable Layer 2 multicast services. To ensure multicast service experience, you are advised to disable the multicast packet rate limiting function by using the traffic-optimize broadcast-suppression other-multicast disable command in the AP system profile view.
When multicast services are enabled, the multicast services may be affected if rate limit for multicast packets is enabled on an AP. In this case, you are advised to run the traffic-optimize broadcast-suppression rate-threshold (AP system profile view) command to adjust the rate limit threshold for multicast packets.