Restrictions and guidelines: MLD snooping configuration

For MLD reports received from secondary VLANs, the relevant MLD snooping forwarding entries are maintained by the primary VLAN. Therefore, you need to enable MLD snooping only for the primary VLAN. The configuration made in secondary VLANs will not take effect. For more information about primary VLANs and secondary VLANs, see Layer 2—LAN Switching Configuration Guide.

The MLD snooping configurations made on Layer 2 aggregate interfaces do not interfere with the configurations made on member ports. In addition, the configurations made on Layer 2 aggregate interfaces do not take part in aggregation calculations. The configuration made on a member port of the aggregate group takes effect after the port leaves the aggregate group.

Some features can be configured for a VLAN in VLAN view or for multiple VLANs in MLD-snooping view. The VLAN-specific configuration and the configuration made in MLD-snooping view have the same priority, and the most recent configuration takes effect.

Some features can be configured for a VLAN in VLAN view or globally for all VLANs in MLD-snooping view. The VLAN-specific configuration takes priority over the global configuration.

Some features can be configured for a VSI in VSI view or globally for all VSIs in MLD-snooping view. The VSI-specific configuration takes priority over the global configuration.

Some features can be configured for an interface in interface view or for all interfaces of the specified VLANs in MLD-snooping view. The interface-specific configuration takes priority over the configuration made in MLD-snooping view.