Cisco NME-16ES-1G User Guide - Page 190
ip igmp snooping vlan immediate-leave
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ip igmp snooping vlan immediate-leave 16- and 36-Port Ethernet Switch Module for Cisco 2600 Series, Cisco 3600 Series, and Cisco 3700 Series ip igmp snooping vlan immediate-leave To enable Internet Group Management Protocol (IGMP) Immediate-Leave processing on a VLAN interface, use the ip igmp snooping immediate-leave command in global configuration mode. To disable Immediate-Leave processing on the VLAN interface, use the no form of this command. ip igmp snooping vlan vlan-id immediate-leave no ip igmp snooping vlan vlan-id immediate-leave Syntax Description vlan-id VLAN ID value. The range is between 1 to 1001. Do not enter leading zeroes. Defaults By default, IGMP Immediate-Leave processing is disabled. 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 Use the Immediate-Leave feature only when there is only one IP multicast receiver present on every port in the VLAN. The Immediate-Leave configuration is saved in nonvolatile RAM (NVRAM). The Immediate-Leave feature is supported only with IGMP version 2 hosts. Examples The following example shows how to enable IGMP Immediate-Leave processing on VLAN 1: Switch(config)# ip igmp snooping vlan 1 immediate-leave The following example shows how to disable IGMP Immediate-Leave processing on VLAN 1: Switch(config)# no ip igmp snooping vlan 1 immediate-leave You can verify your settings by entering the show ip igmp snooping vlan privileged EXEC command. Related Commands Command ip igmp snooping ip igmp snooping vlan mrouter ip igmp snooping vlan static Description Enables IGMP snooping. Configures a Layer 2 port as a multicast router port. Configures a Layer 2 port as a member of a group. 190 Cisco IOS Release 12.2(2)XT, 12.2(8)T, and 12.2(15)ZJ