PurposeCommand or Action
1/0/1
Disables the flooding of multicast traffic during a
spanning-tree TCN event.
no ip igmp snooping tcn flood
Example:
Switch(config-if)# no ip igmp snooping tcn
Step 4
By default, multicast flooding is enabled on an interface.
To re-enable multicast flooding on an interface, use
the ip igmp snooping tcn flood interface
configuration command.
Note
flood
Returns to privileged EXEC mode.end
Example:
Switch(config)# end
Step 5
Verifies the TCN settings.show ip igmp snooping
Example:
Switch# show ip igmp snooping
Step 6
(Optional) Saves your entries in the configuration file.copy running-config startup-config
Example:
Switch# copy running-config startup-config
Step 7
Configuring the IGMP Snooping Querier
Follow these steps to enable the IGMP snooping querier feature in a VLAN:
Consolidated Platform Configuration Guide, Cisco IOS Release 15.2(4)E (Catalyst 2960-X Switches)
142
How to Configure IGMP Snooping and MVR
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