H3C S5120-SI Series

1-8
[Sysname] igmp-snooping
[Sysname-igmp-snooping] quit
[Sysname] vlan 2
[Sysname-vlan2] igmp-snooping enable
[Sysname-vlan2] igmp-snooping dot1p-priority 3
igmp-snooping drop-unknown
Syntax
igmp-snooping drop-unknown
undo igmp-snooping drop-unknown
View
VLAN view
Default Level
2: System level
Parameters
None
Description
Use the igmp-snooping drop-unknown command to enable the function of dropping unknown
multicast data in the current VLAN.
Use the undo igmp-snooping drop-unknown command to disable the function of dropping unknown
multicast data in the current VLAN.
By default, this function is disabled, that is, unknown multicast data is flooded.
This command takes effect only if IGMP snooping is enabled in the VLAN.
Related commands: igmp-snooping enable.
Examples
# In VLAN 2, enable IGMP snooping and the function of dropping unknown multicast data.
<Sysname> system-view
[Sysname] igmp-snooping
[Sysname-igmp-snooping] quit
[Sysname] vlan 2
[Sysname-vlan2] igmp-snooping enable
[Sysname-vlan2] igmp-snooping drop-unknown
igmp-snooping enable
Syntax
igmp-snooping enable
undo igmp-snooping enable