User Manual

Chapter 12
IP multicast control
12.1 Basic settings
12.1.1 Set processing method for unknown multicast frames
[Syntax]
l2-unknown-mcast mode
[Parameter]
mode : Sets the processing method for multicast frames
Setting value Description
discard Discard
flood Flood
[Initial value]
l2-unknown-mcast flood
[Input mode]
global configuration mode
[Description]
Specifies the processing method for multicast frames that are not registered in the MAC address table.
[Example]
Discard unknown multicast.
SWP1(config)#l2-unknown-mcast discard
12.2 IGMP snooping
12.2.1 Enable/disable IGMP snooping
[Syntax]
igmp snooping
no igmp snooping
[Initial value]
Depends on VLAN preset. Refer to 3.2 Default setting values on page 20.
[Input mode]
interface mode
[Description]
Enables the IGMP snooping setting of the interface.
If this is executed with the "no" syntax, the IGMP snooping setting is disabled.
[Note]
This command can be specified only for VLAN interface.
[Example]
Enable IGMP snooping for VLAN #2.
SWP1#configure terminal
SWP1(config)#interface vlan0.2
SWP1(config-if)#igmp snooping
Disable IGMP snooping for VLAN #2.
Command Reference | IP multicast control | 155