3Com Switch 8800 Advanced Software V5 Configuration Guide

664 CHAPTER 45: MLD SNOOPING CONFIGURATION
Configuring IPv6 multicast group replacement on a port or a group ports
Follow these steps to configure IPv6 multicast group replacement on a port or a
group ports:
c
CAUTION: Be sure to configure the maximum number of IPv6 multicast groups
allowed on a port within the range of 1 to 1023 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 works only on an MLD
Snooping-enabled VLAN, but not on a VLAN with MLD enabled on its VLAN
interface.
■ The reset mld-snooping group command cannot be used to clear MLD
Snooping entries of static joins.
MLD Snooping
Configuration
Examples
Examples 1 (Simulated
Joining)
Network requirements
■ As shown in Figure 198, Router A (an IPv6 multicast router) connects to the
IPv6 multicast source through Ethernet1/1/2 and to Switch A (a Switch 8800)
through Ethernet1/1/1.
To do... Use the command... Remarks
Enter system view system-view -
Enter the
corresponding
view
Enter Ethernet
interface 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 of IPv6
multicast groups learned by
MLD Snooping
display mld-snooping
group [ vlan vlan-id ] [ slot
slot-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 entries 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