To allow MLDv1 hosts to use the Source-Specific Multicast (SSM) service, configure static SSM mapping by establishing mappings between multicast groups and sources.
The system view is displayed.
The MLD view is displayed.
A mapping is created between a multicast group and a multicast source.
ipv6-group-address ipv6-group-mask-length: specifies an MLD group address and mask, which must be in the SSM group address range.
ipv6-source-address: specifies an IPv6 multicast source address to be mapped to the MLD group address.
To map a multicast group to N (an integer) sources, run the ssm-mapping command N times.
The configuration is committed.