Configuring dropping unknown ipv6 multicast data – H3C Technologies H3C S12500 Series Switches User Manual
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the entry. Otherwise, the switch drops this report message, in which case, the IPv6 multicast data for the
IPv6 multicast group is not sent to this port, and the user cannot retrieve the program.
Configuring an IPv6 multicast group filter globally
Step Command
Remarks
1.
Enter system view.
system-view
N/A
2.
Enter MLD-snooping view.
mld-snooping
N/A
3.
Configure an IPv6 multicast
group filter.
group-policy acl6-number [ vlan
vlan-list ]
By default, no IPv6 group filter is
globally configured, and the hosts
in a VLAN can join any valid IPv6
multicast group.
Configuring an IPv6 multicast group filter on a port
Step Command
Remarks
1.
Enter system view.
system-view
N/A
2.
Enter Layer 2 Ethernet
interface view or Layer 2
aggregate interface view, or
enter port group view.
•
Enter Layer 2 Ethernet interface
view or Layer 2 aggregate
interface view:
interface interface-type
interface-number
•
Enter port group view:
port-group manual
port-group-name
Use either method.
3.
Configure an IPv6 multicast
group filter on the port.
mld-snooping group-policy
acl6-number [ vlan vlan-list ]
By default, no IPv6 group filter is
configured for the port, and the
hosts on the port can join any valid
IPv6 multicast group.
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, one of the following
occurs:
•
When the function of dropping unknown IPv6 multicast data is disabled, the switch floods unknown
IPv6 multicast data in the VLAN to which the data belongs.
•
When the function of dropping unknown IPv6 multicast data is enabled, the switch drops all
received unknown IPv6 multicast data.
To enable dropping unknown IPv6 multicast data in a VLAN:
Step Command
Remarks
1.
Enter system view.
system-view
N/A
2.
Enter VLAN view.
vlan vlan-id
N/A
3.
Enable dropping unknown
IPv6 multicast data.
mld-snooping drop-unknown
Disabled by default.