Cisco Systems 3750E Disabling Igmp Report Suppression, No ip igmp snooping report-suppression

Chapter 24 Configuring IGMP Snooping and MVR

Configuring IGMP Snooping

This example shows how to set the IGMP snooping querier source address to 10.0.0.64:

Switch# configure terminal

Switch(config)# ip igmp snooping querier 10.0.0.64

Switch(config)# end

This example shows how to set the IGMP snooping querier maximum response time to 25 seconds:

Switch# configure terminal

Switch(config)# ip igmp snooping querier query-interval 25

Switch(config)# end

This example shows how to set the IGMP snooping querier timeout to 60 seconds:

Switch# configure terminal

Switch(config)# ip igmp snooping querier timeout expiry 60

Switch(config)# end

This example shows how to set the IGMP snooping querier feature to Version 2:

Switch# configure terminal

Switch(config)# no ip igmp snooping querier version 2

Switch(config)# end

Disabling IGMP Report Suppression

Note IGMP report suppression is supported only when the multicast query has IGMPv1 and IGMPv2 reports.

		This feature is not supported when the query includes IGMPv3 reports.
		IGMP report suppression is enabled by default. When it is enabled, the switch forwards only one IGMP
		report per multicast router query. When report suppression is disabled, all IGMP reports are forwarded
		to the multicast routers.
		Beginning in privileged EXEC mode, follow these steps to disable IGMP report suppression:
	Command		Purpose
Step 1
	configure terminal		Enter global configuration mode.
Step 2
	no ip igmp snooping report-suppression		Disable IGMP report suppression.
Step 3
	end		Return to privileged EXEC mode.
Step 4
	show ip igmp snooping		Verify that IGMP report suppression is disabled.
Step 5
	copy running-config startup-config		(Optional) Save your entries in the configuration file.

To re-enable IGMP report suppression, use the ip igmp snooping report-suppressionglobal configuration command.

	Catalyst 3750-E and 3560-E Switch Software Configuration Guide
24-16	OL-9775-02