This chapter describes how to configure Multicast Listener Discovery (MLD).

The Multicast Listener Discovery (MLD) is used by IP hosts to report their multicast group memberships to any immediately-neighboring multicast routers.

Using the information obtained through MLD, the router maintains a list of multicast group on a per-interface basis. The routers that receive these MLD packets send multicast data that they receive for requested groups out the network segment of the known receivers.

By default, when PIMv6 is enabled on an interface, MLD version 2 is enabled. MLD can be enabled on an interface explicitly.