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z Configurations made in IGMP Snooping view are effective for all VLANs, while configurations
made in VLAN view are effective only for ports belonging to the current VLAN. For a given VLAN, a
configuration made in IGMP Snooping view is effective only if the same configuration is not made in
VLAN view.
z Configurations made in IGMP Snooping view are effective for all ports; configurations made in
Ethernet port view are effective only for the current port; configurations made in Layer 2 aggregate
port view are effect only for the current port; configurations made in port group view are effective
only for all the ports in the current port group. For a given port, a configuration made in IGMP
Snooping view is effective only if the same configuration is not made in Ethernet port view, Layer 2
aggregate port view or port group view.
z For IGMP Snooping, configurations made on a Layer 2 aggregate port do not interfere with
configurations made on its member ports, nor do they take part in aggregation calculations;
configurations made on a member port of the aggregate group will not take effect until it leaves the
aggregate group.
Configuring Basic Functions of IGMP Snooping
Configuration Prerequisites
Before configuring the basic functions of IGMP Snooping, complete the following task:
z Configure the corresponding VLANs.
Before configuring the basic functions of IGMP Snooping, prepare the following data:
z Version of IGMP Snooping.
Enabling IGMP Snooping
Follow these steps to enable IGMP Snooping:
To do... Use the command... Remarks
Enter system view
system-view
—
Enable IGMP Snooping globally and
enter IGMP-Snooping view
igmp-snooping
Required
Disabled by default
Return to system view
quit
—
Enter VLAN view
vlan vlan-id
—
Enable IGMP Snooping in the VLAN
igmp-snooping enable
Required
Disabled by default
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