3-19
To do... Use the command... Remarks
Enable IPv6 multicast group
replacement
mld-snooping overflow-replace
[
vlan
vlan-list ]
Required
Disabled by default
Be sure to configure the maximum number of IPv6 multicast groups allowed on a port (refer to
Configuring Maximum Multicast Groups that Can Be Joined on a Port) before enabling IPv6 multicast
group replacement. Otherwise, the IPv6 multicast group replacement functionality will not take effect.
Configuring 802.1p Precedence for MLD Messages
You can change 802.1p precedence of MLD messages so that they can be assigned higher forwarding
priority when congestion occurs on their outgoing ports.
Configuring 802.1p precedence for MLD messages globally
Follow these steps to configure 802.1p precedence for MLD messages globally:
To do... Use the command... Remarks
Enter system view
system-view
—
Enter MLD-Snooping view
mld-snooping
—
Configure 802.1p precedence for
MLD Messages
dot1p-priority
priority-number
Required
The default 802.1p precedence for
MLD messages is 0.
Configuring 802.1p precedence for MLD messages in a VLAN
Follow these steps to configure 802.1p precedence for MLD messages in a VLAN:
To do... Use the command... Remarks
Enter system view
system-view
—
Enter VLAN view
vlan
vlan-id
—
Configure 802.1p precedence for
MLD Messages
mld-snooping dot1p-priority
priority-number
Required
The default 802.1p precedence for
MLD messages is 0.
Displaying and Maintaining MLD Snooping
To do… Use the command... Remarks
Display MLD snooping multicast group
information
display mld-snooping group
[ vlan
vlan-id ] [
verbose
]
Available in any view
Display the statistics information of MLD
messages learned by MLD snooping
display mld-snooping statistics
Available in any view
Clear MLD snooping multicast group
information
reset mld-snooping group
{ ipv6-group-address |
all
} [
vlan
vlan-id ]
Available in user view
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