Dell PowerEdge M420 Configuration Manual page 723

Figure 25-3. Add Bridge Multicast Group
2 Select the ID of the VLAN to add to the multicast group or to modify
membership for an existing group.
3 For a new group, specify the multicast group IP or MAC address associated
with the selected VLAN.
4 In the Bridge Multicast Group tables, assign a setting by clicking in the
Static row for a specific port/LAG. Each click toggles between S, F, and
blank. (not a member).
5 Click Apply.
The bridge multicast address is assigned to the multicast group,
ports/LAGs are assigned to the group (with the Current rows being
updated with the Static settings), and the switch is updated.
Configuring L2 Multicast Features
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