Dell POWEREDGE M1000E - Manual (Page 746)

746 Configuring L2 Multicast Features
Removing an Interface from an MVR Group
To remove an interface from an MVR group:
1 From the MVR Interface page, click Remove.
Figure 25-29. MVR - Remove from Group
2 Select the interface to remove from an MVR group.
3 Specify the IP multicast address of the MVR group.
4 Click Apply.