Context: Studying for CCNA
I'm trying to understand multicast. I understand it conceptually, but I'm trying to understand implementation. For instance, in OSPF, how is multicast group membership determined? Do multicasts never leave the OSPF area?
Same question applies for ethernet multicast addresses. It seems like most L2 ethernet operations are with unicast or broadcast. If we know that L3 is the boundary of a L2 broadcast domain, how to we determine L2 multicast membership.
Any examples appreciated!