Administrator Guide

Conguring IGMP Snooping
Conguring IGMP snooping is a one-step process. To enable, view, or disable IGMP snooping, use the following commands.
• Enable IGMP snooping on a switch.
CONFIGURATION mode
ip igmp snooping enable
• View the conguration.
CONFIGURATION mode
show running-config
• Disable snooping on a VLAN.
INTERFACE VLAN mode
no ip igmp snooping
Related Conguration Tasks
• Enabling IGMP Immediate-Leave
• Disabling Multicast Flooding
• Specifying a Port as Connected to a Multicast Router
• Conguring the Switch as Querier
Example of ip igmp snooping enable Command
Dell(conf)#ip igmp snooping enable
Dell(conf)#do show running-config igmp
ip igmp snooping enable
Dell(conf)#
Enabling IGMP Immediate-Leave
To remove a group-port association after receiving an IGMP Leave message, use the following command.
• Congure the switch to remove a group-port association after receiving an IGMP Leave message.
INTERFACE VLAN mode
ip igmp fast-leave
• View the conguration.
INTERFACE VLAN mode
show config
Example of the show config Command
Dell(conf-if-vl-100)#show config
!
interface Vlan 100
no ip address
ip igmp snooping fast-leave
shutdown
Dell(conf-if-vl-100)#
340
Internet Group Management Protocol (IGMP)