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2.  The Multicast VLAN won't take effect unless you first complete the configuration for the 
corresponding VLAN owning the port on the 802.1Q VLAN page. 
3.  Configure the link type of the router port in the multicast VLAN as Tagged otherwise all the 
member ports in the multicast VLAN can not receive multicast streams. 
4.  After a multicast VLAN is created, all the IGMP packets will be processed only within the 
multicast VLAN. 
 
Configuration procedure: 
Step  Operation  Description 
1 Enable IGMP Snooping 
function 
Required. Enable IGMP Snooping globally on the switch 
and for the port on Multicast→IGMP 
Snooping→Snooping Config and Port Config page. 
2  Create a multicast VLAN  Required. Create a multicast VLAN and add all the member 
ports and router ports to the VLAN on the VLAN→802.1Q 
VLAN page. 
z  Configure the link type of the router ports as Tagged. 
3 Configure parameters for 
multicast VLAN 
Optional. Enable and configure a multicast VLAN on the 
Multicast→IGMP Snooping→Multicast VLAN page. 
It is recommended to keep the default time parameters. 
4  Look over the configuration  If it is successfully configured, the VLAN ID of the multicast 
VLAN will be displayed in the IGMP Snooping Status table 
on the Multicast→IGMP Snooping→Snooping Config 
page. 
Application Example for Multicast VLAN: 
¾  Network Requirements 
Multicast source sends multicast streams via the router, and the streams are transmitted to user A 
and user B through the switch. 
Router: Its WAN port is connected to the multicast source; its LAN port is connected to the switch. 
The multicast packets are transmitted in VLAN3. 
Switch: Port 3 is connected to the router and the packets are transmitted in VLAN3; port 4 is 
connected to user A and the packets are transmitted in VLAN4; port 5 is connected to user B and 
the packets are transmitted in VLAN5. 
User A: Connected to Port 4 of the switch. 
User B: Connected to port 5 of the switch. 
Configure a multicast VLAN, and user A and B receive multicast streams through the multicast 
VLAN.