Specifications

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Catalyst 2950 and Catalyst 2955 Switch Command Reference
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Chapter 2 Cisco IOS Commands
ip igmp snooping
ip igmp snooping
Use the ip igmp snooping global configuration command to globally enable Internet Group
Management Protocol (IGMP) snooping. Use the no form of this command to disable IGMP snooping.
ip igmp snooping
no ip igmp snooping
Syntax Description This command has no arguments or keywords.
Defaults IGMP snooping is globally enabled.
Command Modes Global configuration
Command History
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 This example shows how to globally enable IGMP snooping:
Switch(config)# ip igmp snooping
This example shows how to globally disable IGMP snooping:
Switch(config)# no ip igmp snooping
You can verify your settings commands by entering the show ip igmp snooping privileged EXEC
command.
Related Commands
Release Modification
12.0(5.2)WC(1) This command was first introduced.
Command Description
ip igmp snooping vlan Enables IGMP snooping on a VLAN interface.
ip igmp snooping vlan
immediate-leave
Enables IGMP Immediate-Leave processing.
ip igmp snooping vlan mrouter Configures a Layer 2 port as a multicast router port.
ip igmp snooping vlan static Configures a Layer 2 port as a member of a group.
show ip igmp snooping Displays the IGMP snooping configuration.