TP-Link T1600G-18TS Configuration Manual page 367

Configuring Layer 2 Multicast Viewing Multicast Snooping Configurations
show ipv6 mld snooping groups [vlan vlan-id ] [count | dynamic | dynamic count | static | static count ]
Displays information of specific multicast group in all VLANs or in the specific VLAN.
count displays the number of multicast groups.
dynamic displays information of all dynamic multicast groups.
dynamic count displays the number of dynamic multicast groups.
static displays information of all static multicast groups.
static count displays the number of static multicast groups.
show ipv6 mld snooping querier [vlan vlan-id ]
Displays information of MLD Querier in all VLANs or in the specific VLAN.
show ipv6 mld profile [ id ]
Displays settings in all profiles or in the specific profile.
clear ipv6 mld snooping statistics
Clear all statistics of all MLD packets.
Configuration Guide 344