2-222Cisco Catalyst Blade Switch 3130 and 3032 for Dell Command ReferenceOL-13271-03Chapter 2 Cisco Catalyst Blade Switch 3130 and 3032 for Dell Cisco IOS Commandsip igmp max-groupsip igmp max-groupsUse the ip igmp max-groups interface configuration command on the switch stack or on a standaloneswitch to set the maximum number of Internet Group Management Protocol (IGMP) groups that aLayer 2 interface can join or to configure the IGMP throttling action when the maximum number ofentries is in the forwarding table. Use the no form of this command to set the maximum back to thedefault, which is to have no maximum limit, or to return to the default throttling action, which is to dropthe report.ip igmp max-groups {number | action {deny | replace}}no ip igmp max-groups {number | action}Syntax DescriptionDefaults The default maximum number of groups is no limit.After the switch learns the maximum number of IGMP group entries on an interface, the defaultthrottling action is to drop the next IGMP report that the interface receives and to not add an entry forthe IGMP group to the interface.Command Modes Interface configurationCommand HistoryUsage Guidelines You can use this command only on Layer 2 physical interfaces and on logical EtherChannel interfaces.You cannot set IGMP maximum groups for routed ports, switch virtual interfaces (SVIs), or ports thatbelong to an EtherChannel group.number The maximum number of IGMP groups that an interface can join. The range is 0 to4294967294. The default is no limit.action deny When the maximum number of entries is in the IGMP snooping forwarding table, dropthe next IGMP join report. This is the default action.actionreplaceWhen the maximum number of entries is in the IGMP snooping forwarding table,replace the existing group with the new group for which the IGMP report was received.Release Modification12.2(40)EX1 This command was introduced.
