Configuration Guide 286
Configuring Layer 2 Multicast IGMP Snooping Configurations
The following example shows how to enable Report Message Suppression:
Switch#configure
Switch(config)#ip igmp snooping
Switch(config)#ip igmp snooping report-suppression
Switch(config)#show ip igmp snooping
IGMP Snooping :Enable
Unknown Multicast :Pass
Last Query Times :2
Last Query Interval :1
Global Member Age Time :260
Global Router Age Time :300
Global Report Suppression :Enable
Global Authentication Accounting:Disable
Enable Port:
Enable VLAN:
Switch(config-if)#end
Switch#copy running-config startup-config
Configuring Unknown Multicast
Step 1 configure
Enter global configuration mode.
Step 2 ip igmp snooping drop-unknown
Configure the way how the switch processes the multicast data from unknown multicast
groups as Discard. Unknown multicast groups are multicast groups whose destination
multicast address is not in the multicast forwarding table of the switch.
Step 3 end
Return to privileged EXEC mode.
Step 4 show ip igmp snooping
Show the basic IGMP snooping configuration.
Step 5 copy running-config startup-config
Save the settings in the configuration file.
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