Cisco NM-8B-U User Guide - Page 187
ip igmp snooping, To globally enable Internet Group Management Protocol IGMP snooping, use
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16- and 36-Port Ethernet Switch Module for Cisco 2600 Series, Cisco 3600 Series, and Cisco 3700 Series ip igmp snooping ip igmp snooping To globally enable Internet Group Management Protocol (IGMP) snooping, use the ip igmp snooping command in global configuration mode. To disable IGMP snooping, use the no form of this command. ip igmp snooping no ip igmp snooping Syntax Description This command has no arguments or keywords. Defaults By default, IGMP snooping is globally enabled. Command Modes Global configuration Command History Release 12.0(5.2)WC(1) 12.2(15)ZJ Modification This command was introduced. This command was implemented on the following platforms: Cisco 2600 series, Cisco 3600 series, and Cisco 3700 series routers. Usage Guidelines When IGMP snooping is globally enabled, it enables IGMP snooping on all the existing VLAN interfaces. When IGMP snooping is globally disabled, it disables IGMP snooping on all the existing VLAN interfaces. The configuration is saved in nonvolatile RAM (NVRAM). Examples The following example shows how to globally enable IGMP snooping: Switch(config)# ip igmp snooping The following example shows how to globally disable IGMP snooping: Switch(config)# no ip igmp snooping You can verify your settings by entering the show ip igmp snooping privileged EXEC command. Related Commands Command ip igmp snooping vlan ip igmp snooping vlan immediate-leave ip igmp snooping vlan mrouter Description Enables IGMP snooping on a VLAN interface. Enables IGMP Immediate-Leave processing. Configures a Layer 2 port as a multicast router port. Cisco IOS Release 12.2(2)XT, 12.2(8)T, and 12.2(15)ZJ 187