Sub-VLAN-based IPv6 multicast VLAN
As shown in Figure 92:
Host A, Host B, and Host C are in VLAN 2 through VLAN 4, respectively.
On Switch B, VLAN 10 is an IPv6 multicast VLAN. VLAN 2 through VLAN 4 are sub-VLANs of VLAN 10.
MLD snooping is enabled for the multicast VLAN and its sub-VLANs.
Figure 92: Sub-VLAN-based multicast VLAN
MLD snooping manages router ports in the IPv6 multicast VLAN and member ports in each sub-VLAN. When Switch A receives IPv6 multicast data from the IPv6 multicast source, it sends only one copy of the IPv6 multicast data to the IPv6 multicast VLAN on Switch B. Then, Switch B sends a separate copy to each sub-VLAN of the IPv6 multicast VLAN.