H3C Technologies H3C S10500 Series Switches - Manual (Page 289)

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To do... Use the command... Remarks
Enter Layer 2 Ethernet interface
view, or port group view
Enter Layer 2 Ethernet interface
view:
interface interface-type
interface-number
Enter port group view:
port-group manual
port-group-name
Required
Use either command
Enable IPv6 multicast source port
filtering
mld-snooping source-deny
Required
Disabled by default.
NOTE:
Some models of devices, when enabled to filter IPv6 multicast data based on the source ports, are
automatically enabled to filter IPv4 multicast data based on the source ports.
Configuring the function of dropping unknown IPv6 multicast
data
Unknown IPv6 multicast data refers to IPv6 multicast data for which no entries exist in the MLD snooping
forwarding table. When the switch receives such IPv6 multicast traffic, the switch floods unknown IPv6
multicast data in the VLAN to which the unknown IPv6 multicast data belongs.
Enabling dropping IPv6 multicast data globally
Follow these steps to enable dropping IPv6 multicast data globally:
To do... Use the command... Remarks
Enter system view system-view —
Enter MLD-snooping view mld-snooping —
Enable dropping IPv6 multicast
data
drop-unknown
Required
Disabled by default.
Enabling dropping unknown IPv6 multicast data in a VLAN
Follow these steps to enable dropping unknown IPv6 multicast data in a VLAN:
To do... Use the command... Remarks
Enter system view system-view —
Enter VLAN view vlan vlan-id —
Enable dropping unknown IPv6
multicast data
mld-snooping drop-unknown
Required
Disabled by default.