Dell PowerEdge FN I/O Module Configuration Guide 9.10(0.0)

The Dell Networking OS supports the following protocols to implement IPv6 multicast routing:

• Multicast listener discovery protocol (MLD) — MLD on a multicast router sends out periodic general MLD queries that the switch forwards through all ports in the VLAN. There are two versions of MLD: MLD version 1 is based on version 2 of the Internet group management protocol (IGMP) for IPv4; MLD version 2 is based on version 3 of the IGMP for IPv4. IPv6 multicast for the Dell Networking OS supports versions 1 and 2.
• Protocol-independent multicast-sparse mode (PIM-SM) — PIM-SM is a multicast protocol in which multicast receivers explicitly join to receive multicast traffic. The protocol uses a router as the root or rendezvous point (RP) of the share tree distribution tree to distribute multicast traffic to a multicast group. Messages to join the multicast group (Join messages) are sent towards the RP and data is sent from senders to the RP so receivers can discover who are the senders and begin receiving traffic destined to the multicast group.

For more information, refer to the Neighbor Discovery Protocol (NDP) , Multicast IPv6, and Protocol Independent Multicast (IPv6) chapters in the Dell Networking OS Command Line Interface Reference Guide .