whole aggregation will act as a router port. 
• Fast Leave 
Enable the fast leave on the port. 
• Throtting 
Enable to limit the number of multicast groups to which a switch 
port can belong. 
 
Buttons 
: Click to save changes. 
: Click to undo any changes made locally and revert to previously saved values. 
 
 
4.8.3 IGMP Snooping VLAN Configuration 
Each page shows up to 99 entries from the VLAN table, default being 20, selected through the "entries 
per page" input field. When first visited, the web page will show the first 20 entries from the beginning 
of the VLAN Table. The first displayed will be the one with the lowest VLAN ID found in the VLAN Table. 
The "VLAN" input fields allow the user to select the starting point in the VLAN Table. The IGMP 
Snooping VLAN Configuration screen in Figure 4-8-6 appears. 
 
Figure 4-8-6: IGMP Snooping VLAN Configuration page screenshot 
 
The page includes the following fields: 
Object  Description 
• VLAN ID 
The VLAN ID of the entry. 
• IGMP Snooping 
Enable 
Enable the per-VLAN IGMP Snooping. Only up to 64 VLANs can be 
selected. 
• IGMP Querier 
Enable the IGMP Querier in the VLAN. 
• RV 
Robustness Variable. The Robustness Variable allows tuning for 
the expected packet loss on a network. The allowed range is 1 to