H3C Technologies H3C WX3000 Series Unified Switches - Manual (Page 451)

45-2
Configuring Dropping Unknown Multicast Packets
Generally, if the multicast address of the multicast packet received on the device is not registered on the
local device, the packet will be flooded in the VLAN. When the function of dropping unknown multicast
packets is enabled, the device will drop any multicast packets whose multicast address is not registered.
Thus, the bandwidth is saved and the processing efficiency of the system is improved.
Follow these steps to configure dropping unknown multicast packet:
To do… Use the command… Remarks
Enter system view system -view —
Configure dropping unknown
multicast packets
unknown-multicast drop enable
Required
By default, the function of dropping
unknown multicast packets is
disabled.
Displaying and Maintaining Common Multicast Configuration
To do… Use the command… Remarks
Display the created multicast MAC
table entries
display mac-address multicast [ static
{ { { mac-address vlan vlan-id | vlan
vlan-id
} [ count ] } | count } ]
You can execute the
display
commands in any
view.