H3C IE4300 Command Reference Manual page 1523

Examples
# In VLAN 2, enable IGMP snooping, and set the 802.1p priority for IGMP messages to 3.
<Sysname> system-view
[Sysname] igmp-snooping
[Sysname-igmp-snooping] quit
[Sysname] vlan 2
[Sysname-vlan2] igmp-snooping enable
[Sysname-vlan2] igmp-snooping dot1p-priority 3
Related commands
dot1p-priority
(IGMP-snooping view)
enable
igmp-snooping enable
igmp-snooping drop-unknown
Use
igmp-snooping drop-unknown
VLAN.
Use
undo igmp-snooping drop-unknown
for a VLAN.
Syntax
igmp-snooping drop-unknown
undo igmp-snooping drop-unknown
Default
Dropping unknown multicast data packets is disabled. Unknown multicast data packets are flooded.
Views
VLAN view
Predefined user roles
network-admin
Usage guidelines
You must enable IGMP snooping for a VLAN before you execute this command.
Examples
# In VLAN 2, enable IGMP snooping, and enable dropping unknown multicast data packets.
<Sysname> system-view
[Sysname] igmp-snooping
[Sysname-igmp-snooping] quit
[Sysname] vlan 2
[Sysname-vlan2] igmp-snooping enable
[Sysname-vlan2] igmp-snooping drop-unknown
Related commands
(IGMP-snooping view)
enable
igmp-snooping enable
(IGMP-snooping view)
to enable dropping unknown multicast data packets for a
to disable dropping unknown multicast data packets
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