Multicast Listener Discovery (MLD) is a protocol used by an IPv6 host to register its IP multicast group membership with a router. To receive multicast traffic, a host must explicitly join a multicast group by sending an MLD report; then, the traffic is forwarded to that host. Periodically, the router queries the multicast group to see if the group is still in use. If the group is still active, a single IP host responds to the query, and group registration is maintained.
Note
This release does not support MVR, PVLAN, VLAN (Virtual LAN) Aggregation, and Multicast Troubleshooting tools for MLD/IPv6.
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