Cisco Systems 3750E manual Displaying Igmp Filtering and Throttling Configuration, Replace, 24-29

Chapter 24 Configuring IGMP Snooping and MVR

Displaying IGMP Filtering and Throttling Configuration

Beginning in privileged EXEC mode, follow these steps to configure the throttling action when the maximum number of entries is in the forwarding table:

	Command	Purpose
Step 1
	configure terminal	Enter global configuration mode.
Step 2
	interface interface-id	Specify the physical interface to be configured, and enter interface
		configuration mode. The interface can be a Layer 2 port that does not
		belong to an EtherChannel group or an EtherChannel interface. The
		interface cannot be a trunk port.
Step 3 ip igmp max-groups action {deny		When an interface receives an IGMP report and the maximum number
	replace}	of entries is in the forwarding table, specify the action that the interface
		takes:
		• deny—Drop the report.
		• replace—Replace the existing group with the new group for which
		the IGMP report was received.
Step 4
	end	Return to privileged EXEC mode.
Step 5
	show running-config interface	Verify the configuration.
	interface-id
Step 6
	copy running-config startup-config	(Optional) Save your entries in the configuration file.

To return to the default action of dropping the report, use the no ip igmp max-groups action interface configuration command.

Displaying IGMP Filtering and Throttling Configuration

You can display IGMP profile characteristics, and you can display the IGMP profile and maximum group configuration for all interfaces on the switch or for a specified interface. You can also display the IGMP throttling configuration for all interfaces on the switch or for a specified interface.

Use the privileged EXEC commands in Table 24-8to display IGMP filtering and throttling configuration:

Table 24-8 Commands for Displaying IGMP Filtering and Throttling Configuration

Command	Purpose
show ip igmp profile [profile	Displays the specified IGMP profile or all the IGMP profiles defined on the switch.
number]
show running-config [interface	Displays the configuration of the specified interface or the configuration of all interfaces
interface-id]	on the switch, including (if configured) the maximum number of IGMP groups to which
	an interface can belong and the IGMP profile applied to the interface.

	Catalyst 3750-E and 3560-E Switch Software Configuration Guide
OL-9775-02		24-29