Configuring Layer 2 Multicast Configuration Examples
Configuration Guide  
  359
Figure 5-14 Configure IGMP Snooping Globally
Note:
IGMP Snooping and MLD Snooping share the setting of Unknown Multicast, so you have to 
enable MLD Snooping globally on the Multicast > MLD Snooping > Snooping Config page at 
the same time.
2)  Choose the menu Multicast > IGMP Snooping > Port Config to load the following page. 
Enable IGMP Snooping on port 1/0/2 and port 1/0/4 and enable Fast Leave on port 
1/0/2.