H3C Technologies H3C WX3000E Series Wireless Switches - Manual (Page 102)

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Figure 23 Port-based IPv6 multicast VLAN
After the configuration, if the AC receives an MLD message on a user port, it 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 Router A forwards multicast data to the
AC, it sends only one copy of multicast data in the IPv6 multicast VLAN, and the AC distributes the data
to all member ports in the IPv6 multicast VLAN.
For more information about MLD snooping, router ports, and member ports, see "Configuring MLD
snooping."
For more information about VLAN tags, see Layer 2 Configuration Guide.
Configuring a port-based IPv6 multicast VLAN
When you configure a port-based IPv6 multicast VLAN, you must configure the attributes of each user
port and then assign the ports to the IPv6 multicast VLAN.
A user port can be configured as a multicast VLAN port only if it is an Ethernet port, a WLAN-MESH
interface, a WLAN-ESS interface, or a Layer 2 aggregate interface.
In Ethernet interface view or WLAN-ESS interface view, the configuration is effective on only the current
interface. In Layer 2 aggregate interface view, the configuration is effective on all ports in the current
aggregate group. In port group view, the configuration is effective on all ports in the current port group.
Configuration prerequisites
Before you configure a port-based IPv6 multicast VLAN, complete the following tasks:
• Create VLANs as required.
• Enable MLD snooping in the VLAN to be configured as an IPv6 multicast VLAN.
Source
VLAN 2
VLAN 3
VLAN 4
AC
Receiver
Host A
Receiver
Host B
Receiver
Host C
Router A
MLD querier
IP network
AP
IPv6 Multicast packets
VLAN 10 (Multicast VLAN)