Reference v4.1.0 Instruction Manual

360 Network OS Command Reference

53-1003115-01

ip igmp snooping enable

Enables Internet Group Management Protocol (IGMP) snooping for a specific VLAN interface.

Synopsis ip igmp snooping enable

no ip igmp snooping enable

Operands None

Defaults When snooping is enabled globally, IGMP snooping is enabled on all VLAN interfaces.

Command Modes VLAN interface configuration mode

Description Use this command to enable or disable IGMP snooping on a specific VLAN interface.

IGMP snooping allows a network switch 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.

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

Examples To enable IGMP for a specific VLAN interface:

switch(config)# interface vlan 1

switch(config-Vlan-1)# ip igmp snooping enable

To disable IGMP for a specific VLAN interface:

switch(config)# interface vlan 1

switch(config-Vlan-1)# no ip igmp snooping enable

See Also interface, interface ve, ip igmp snooping enable (global version), show ip igmp snooping,

ip igmp snooping fast-leave, ip igmp snooping mrouter, ip igmp snooping mrouter-timeout,

ip igmp snooping querier enable