Consolidated Platform Configuration Guide, Cisco Ios Release 15.2(4)E (Catalyst 2960-X Switches - Cisco Catalyst 2960 series Configuration Manual

How to Configure IGMP Snooping and MVR
Command or Action
Example:
Switch(config-if)# ip igmp
max-groups action replace
Step 5 end
Example:
Switch(config)# end
Step 6 show running-config interface
interface-id
Example:
Switch# show running-config
interface gigabitethernet1/0/1
Step 7 copy running-config startup-config
Example:
Switch# copy running-config
startup-config
Related Topics
IGMP Filtering and Throttling, on page 126
Restrictions for IGMP Snooping, on page 116

Consolidated Platform Configuration Guide, Cisco IOS Release 15.2(4)E (Catalyst 2960-X Switches)

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Purpose
• deny—Drops the report. If you configure this throttling action, the
entries that were previously in the forwarding table are not removed
but are aged out. After these entries are aged out and the maximum
number of entries is in the forwarding table, the switch drops the next
IGMP report received on the interface.
• replace—Replaces the existing group with the new group for which
the IGMP report was received. If you configure this throttling action,
the entries that were previously in the forwarding table are removed.
When the maximum number of entries is in the forwarding table, the
switch replaces a randomly selected entry with the received IGMP
report.
To prevent the switch from removing the forwarding-table entries, you can
configure the IGMP throttling action before an interface adds entries to the
forwarding table.
To return to the default action of dropping the report, use the no ip
Note
igmp max-groups action interface configuration command.
Returns to privileged EXEC mode.
Verifies your entries.
(Optional) Saves your entries in the configuration file.