22
Task Remarks
Configuring IGMP
snooping proxying
Enabling IGMP snooping proxying Optional
Configuring a source IP address for the IGMP messages sent by
the proxy
Optional
Configuring an IGMP
snooping policy
Configuring a multicast group filter Optional
Configuring multicast source port filtering Optional
Enabling dropping unknown multicast data Optional
Configuring IGMP report suppression Optional
Setting the maximum number of multicast groups that a port
can join
Optional
Setting the 802.1p precedence for IGMP messages Optional
Enabling multicast group replacement Optional
Configuring a multicast user control policy Optional
Enabling the IGMP snooping host tracking function Optional
Setting the DSCP value for IGMP messages Optional
For the configuration tasks in this section:
• In IGMP snooping view, the configurations that you make are effective in all VLANs. In VLAN view,
the configurations that you make are effective on only the ports that belong to the current VLAN. For
a given VLAN, a configuration that you make in IGMP snooping view is effective only if you do not
make the same configuration in VLAN view.
• In IGMP snooping view, the configurations that you make are effective on all ports. In Layer 2
Ethernet interface view or Layer 2 aggregate interface view, the configurations that you make are
effective only on the current port. In port group view, the configurations that you make are effective
on all ports in the current port group. For a given port, a configuration that you make in IGMP
snooping view is effective only if you do not make the same configuration in Layer 2 Ethernet
interface view, Layer 2 aggregate interface view, or port group view.
• For IGMP snooping, the configurations that you make on a Layer 2 aggregate interface do not
interfere with those you make on its member ports, nor do they participate in aggregation
calculations. Configurations that you make on a member port of an aggregate group do not take
effect until it leaves the aggregate group.
Configuring basic IGMP snooping functions
Before you configure basic IGMP snooping functions, complete the following tasks:
• Configure the corresponding VLANs.
• Determine the version of IGMP snooping.
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