Dell PowerEdge M420 Configuration Manual page 727

Figure 25-7. Edit IGMP Snooping Settings
3 Edit the IGMP Snooping fields as needed.
4 Click Apply.
The IGMP Snooping settings are modified, and the device is updated.
Copying IGMP Snooping Settings to Multiple Ports, LAGs, or VLANs
To copy IGMP snooping settings:
1 From the General IGMP snooping page, click Show All.
The IGMP Snooping Table displays.
2 Select the Copy Parameters From checkbox.
3 Select a Unit/Port, LAG, or VLAN to use as the source of the desired
parameters.
Configuring L2 Multicast Features
727