ip igmp snooping enable

Enables Internet Group Management Protocol (IGMP) snooping on a VLAN.

Syntax

no ip igmp snooping enable

Command Default

By default, snooping is enabled.

Modes

VLAN configuration mode

Usage Guidelines

IGMP snooping allows a network device to listen in on the IGMP conversation between hosts and routers. By listening to these conversations, the switch maintains a map of which links need which IP multicast streams. Multicasts may be filtered from the links which do not need them.

Enter no ip igmp snooping enable to disable snooping for a specific VLAN.

Examples

To enable IGMP on a VLAN:

device(config)# vlan 1
device(config-Vlan-1)# ip igmp snooping enable