H3C S7500E Series

Command Manual – Multicast
H3C S7500E Series Ethernet Switches Chapter 1 IGMP Snooping Configuration Commands
1-8
View
VLAN view
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: drop-unknown.
Examples
# In VLAN 2, enable the function of dropping unknown multicast data.
<Sysname> system-view
[Sysname] vlan 2
[Sysname-vlan2] igmp-snooping drop-unknown
1.1.9 igmp-snooping enable
Syntax
igmp-snooping enable
undo igmp-snooping enable
View
VLAN view
Parameters
None
Description
Use the igmp-snooping enable command to enable IGMP Snooping in the current
VLAN.
Use the undo igmp-snooping enable command to disable IGMP Snooping in the
current VLAN.
By default, IGMP Snooping is disabled in a VLAN.