Cisco Catalyst 3550 Command Reference Manual page 197

Chapter 2 Catalyst 3550 Switch Cisco IOS Commands
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Examples
This example shows how to limit to 25 the number of IGMP groups that an interface can join.
Switch(config)# interface fastethernet0/1
Switch(config-if)# ip igmp max-groups 25
This example shows how to configure the switch to replace the existing group with the new group for
which the IGMP report was received when the maximum number of entries is in the forwarding table:
Switch(config)# interface gigabitethernet0/1
Switch(config-if)# ip igmp max-groups action replace
You can verify your setting by using the show running-config privileged EXEC command and by
specifying an interface.
Related Commands Command
show running-config interface
interface-id
OL-8566-02
When the maximum group limitation is set to the default (no maximum), entering the ip igmp
max-groups {deny | replace} command has no effect.
Description
Displays the running configuration on the switch interface, including
the maximum number of IGMP groups that an interface can join and
the throttling action. For syntax information, select Cisco IOS Release
12.2 Configuration Guides and Command References > Cisco IOS
Configuration Fundamentals Command Reference, Release 12.2 >
File Management Commands > Configuration File Management
Commands.
Catalyst 3550 Multilayer Switch Command Reference
ip igmp max-groups
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