H3C Technologies H3C S12500 Series Switches - Manual (Page 319)

303
Task Command Remarks
Display information about the hosts
tracked by MLD snooping (in
standalone mode).
display mld-snooping host vlan vlan-id group
ipv6-group-address [ source
ipv6-source-address ] [ slot slot-number ] [ |
{ begin | exclude | include }
regular-expression ]
Available in any
view.
Display information about the hosts
tracked by MLD snooping (in IRF
mode).
display mld-snooping host vlan vlan-id group
ipv6-group-address [ source
ipv6-source-address ] [ chassis chassis-number
slot slot-number ] [ | { begin | exclude |
include } regular-expression ]
Available in any
view.
Display statistics for MLD messages
learned through MLD snooping. display mld-snooping statistics [ | { begin |
exclude | include } regular-expression ] Available in any
view.
Remove dynamic group entries of
an MLD snooping group or all MLD
snooping groups.
reset mld-snooping group { ipv6-group-address
| all } [ vlan vlan-id ] Available in user
view.
Clear statistics for all MLD
messages learned through MLD
snooping.
reset mld-snooping statistics
Available in user
view.
MLD snooping configuration examples
IMPORTANT:
By default, Ethernet interfaces, VLAN interfaces, and aggregate interfaces are in the state of DOWN. To
configure such an interface, use the undo shutdown commands to bring it up first.
IPv6 group policy and simulated joining configuration example
Network requirements
As shown in Figure 81 , MLDv1 runs on Router A, MLDv1 snooping required on Switch A, and Router A
acts as the MLD querier on the subnet. The receivers, Host A and Host B can receive IPv6 multicast traffic
addressed to IPv6 multicast group FF1E::101 only.
IPv6 multicast data for group FF1E::101 can be forwarded through GigabitEthernet 3/0/3 and
GigabitEthernet 3/0/4 of Switch A even if Host A and Host B temporarily stop receiving IPv6 multicast
data. Switch A drops unknown IPv6 multicast data and does not broadcast the data to the VLAN where
Switch A resides.