Siemens SCALANCE XM-400 Configuration Manual page 438

Layer 2 management protocols
8.7 MLD Snooping (IPv6)
Syntax
Call up the command with the following parameters:
ipv6 mld snooping version {v1 | v2}
The parameters have the following meaning:
Parameter
v1
v2
Result
The version of MLD used by the device in this VLAN is specified.
438
Description
MLDv1
MLDv2
Default
SCALANCE XM-400/XR-500 Command Line Interface (CLI)
Configuration Manual, 11/2015, C79000-G8976-C252-10