Configuring Layer 2 Multicast MLD Snooping Configuration
Configuration Guide  
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Switch(config-if-range)#ipv6 mld snooping immediate-leave
Switch(config-if-range)#show ipv6 mld snooping interface gigabitEthernet 1/0/1-3
Port                        MLD-Snooping          Fast-Leave
-----------             -------------------        --------------
Gi1/0/1                 enable                           enable
Gi1/0/2                 enable                           enable
Gi1/0/3                 enable                           enable
Switch(config-if-range)#end
Switch#copy running-config startup-config
3.2.4  Configuring Hosts to Statically Join a Group
Hosts or Layer 2 ports normally join multicast groups dynamically, but you can also 
configure hosts to statically join a group. 
Follow these steps to configure hosts to statically join a group:
Step 1 configure
Enter global configuration mode.
Step 2 ipv6 mld snooping vlan-config 
vlan-id-list
 static 
ip 
interface {fastEthernet  
port-list
 |
 
gigabitEthernet 
port-list
 | ten-gigabitEthernet 
port-list
 | port-channel 
lag-list
}
vlan-id-list: 
Specify the ID or the ID list of the VLAN(s).
ip: 
Specify the IP address of the multicast group that the hosts want to join.
port-list 
/ 
lag-list: 
Specify the ports that is connected to the hosts. These ports will become 
static member ports of the group.
Step 3 show ipv6 mld snooping groups static
Show the static MLD Snooping configuration.
Step 4 end
Return to privileged EXEC mode.
Step 5 copy running-config startup-config
Save the settings in the configuration file.
The following example shows how to configure port 1/0/1-3 in VLAN 2 to statically join the 
multicast group  FF80::1234:01:
Switch#configure
Switch(config)#ipv6 mld snooping vlan-config 2 static FF80::1234:01 interface 
gigabitEthernet 1/0/1-3
Switch(config)#show ipv6 mld snooping groups static