83
Figure 28 Port-based IPv6 multicast VLAN
After the configuration, upon receiving an MLD message on a user port, Switch A tags the message
with the IPv6 multicast VLAN ID and relays it to the MLD querier, so that MLD snooping can uniformly
manage the router ports and member ports in the IPv6 multicast VLAN. When forwarding multicast
data to Switch A, Router A needs to send only one copy of multicast traffic to Switch A in the IPv6
multicast VLAN, and Switch A distributes the traffic to all member ports in the IPv6 multicast VLAN.
NOTE:
•
For more information about MLD snooping, router ports, and member ports, see the chapter
"
•
For more information about VLAN tags, see the
Layer 2—LAN Switching Configuration Guide.
IPv6 multicast VLAN configuration task list
Complete the following tasks to configure IPv6 multicast VLAN:
Configuration task
Remarks
Configuring user port attributes
Required
Configuring IPv6 multicast VLAN ports
Required
Configuring IPv6 multicast VLAN
When configuring port-based IPv6 multicast VLAN, you need to configure the attributes of each user
port and then assign the ports to the IPv6 multicast VLAN.
NOTE:
•
A user port can be configured as a multicast VLAN port only if it is of the Ethernet, or Layer 2
aggregate interface type.
•
In Layer 2 Ethernet interface view and Layer 2 aggregate interface view, the configuration is
effective on only the current interface. In port group view, the configuration is effective on all ports
in the current port group.