3Com Switch 4800G 24-Port - Displaying and Maintaining MLD Snooping

Displaying and Maintaining MLD Snooping 595
■ If the IPv6 multicast group replacement is not enabled, new MLD reports will
be automatically discarded.
Configuring IPv6 multicast group replacement globally
Follow these steps to configure IPv6 multicast group replacement globally:
Configuring IPv6 multicast group replacement on a port or a group of
ports
Follow these steps to configure IPv6 multicast group replacement on a port or a
group of ports:
c
CAUTION: Be sure to configure the maximum number of IPv6 multicast groups
allowed on a port (refer to “Configuring Maximum Multicast Groups that that Can
Be Joined on a Port” on page 594) before configuring IPv6 multicast group
replacement. Otherwise, the IPv6 multicast group replacement functionality will
not take effect.
Displaying and
Maintaining MLD
Snooping
n
The reset mld-snooping group command cannot clear MLD Snooping multicast
group information for static joins.
To do… Use the command… Remarks
Enter system view system-view -
Enter MLD Snooping view mld-snooping -
Configure IPv6 multicast
group replacement
overflow-replace [ vlan
vlan-list ]
Required
Disabled by default
To do… Use the command… Remarks
Enter system view system-view -
Enter the
corresponding view
Enter Ethernet
port view
interface interface-type
interface-number
Use either command
Enter port group
view
port-group { manual
port-group-name |
aggregation agg-id }
Configure IPv6 multicast group
replacement
mld-snooping
overflow-replace
[ vlan vlan-list ]
Required
Disabled by default
To do… Use the command… Remarks
View the information about MLD
Snooping multicast groups
display mld-snooping group
[vlan vlan-id ] [ verbose ]
Available in any
view
View 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
Clear the statistics information of
all kinds of MLD messages learned
by MLD Snooping
reset mld-snooping statistics Available in user
view