Ip Igmp Snooping - Cisco Catalyst 2950 Command Reference Manual

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.
Syntax Description
This command has no arguments or keywords.
Though visible in the command-line help string, the tcn keyword is not supported.
Note
Defaults
IGMP snooping is globally enabled.
Command Modes Global configuration
Command History Release
12.0(5.2)WC(1)
Usage Guidelines
When IGMP snooping is globally enabled, IGMP snooping is enabled on all the existing VLAN
interfaces. When IGMP snooping is globally disabled, IGMP snooping is disabled on all the existing
VLAN interfaces.
The configuration is saved in NVRAM.
Examples
This example shows how to globally enable IGMP snooping:
Switch(config)# ip igmp snooping
To verify your settings, enter 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
ip igmp snooping vlan static
show ip igmp snooping
Catalyst 2950 and Catalyst 2955 Switch Command Reference
2-146
ip igmp snooping
no ip igmp snooping
Modification
This command was introduced.
Chapter 2 Catalyst 2950 and 2955 Cisco IOS Commands
Description
Enables IGMP snooping on a VLAN interface.
Enables IGMP Immediate-Leave processing.
Configures a Layer 2 port as a multicast router port.
Configures a Layer 2 port as a member of a group.
Displays the IGMP snooping configuration.
OL-10102-01