H3C LS-3100-52P-OVS-H3 Operation Manual - page 1223
1-16
Configuring IPv6 multicast source port filtering globally
Follow these steps to configure IPv6 multicast source port filtering:
To do...
Use the command...
Remarks
Enter system view
system-view
—
Enter MLD Snooping view
mld-snooping
—
Enable IPv6 multicast source
port filtering
source-deny port interface-list
Required
Disabled by default
Configuring IPv6 multicast source port filtering on a port or a group of ports
Follow these steps to configure IPv6 multicast source port filtering on a port or a group of ports:
To do...
Use the command...
Remarks
Enter system view
system-view
—
interface interface-type
interface-number
Enter Ethernet port view or port
group view
port-group manual
port-group-name
Required
Use either approach
Enable IPv6 multicast source
port filtering
mld-snooping source-deny
Required
Disabled by default
Configuring Dropping Unknown IPv6 Multicast Data
Unknown IPv6 multicast data refers to IPv6 multicast data for which no forwarding entries exist in the
MLD Snooping forwarding table: When the switch receives such IPv6 multicast traffic:
z
With the function of dropping unknown IPv6 multicast data enabled, the switch drops all unknown
IPv6 multicast data received.
z
With the function of dropping unknown IPv6 multicast data disabled, the switch floods unknown
IPv6 multicast data in the VLAN to which the unknown IPv6 multicast data belongs.
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
Configuring MLD Report Suppression
When a Layer 2 device receives an MLD report from an IPv6 multicast group member, the Layer 2
device forwards the message to the Layer 3 device directly connected with it. Thus, when multiple
members belonging to an IPv6 multicast group exist on the Layer 2 device, the Layer 3 device directly
connected with it will receive duplicate MLD reports from these members.