Dell POWEREDGE M1000E - Manual (Page 704)

704 Configuring Port-Based Traffic Control
Figure 24-9. View Protected Port Information
11 To remove a port from a protected port group, select the Remove check
box associated with the port and click Apply.
LLPF Configuration
Use the LLPF Interface Configuration page to filter out various proprietary
protocol data units (PDUs) and/or ISDP if problems occur with these
protocols running on standards-based switches.
To display the LLPF Interface Configuration page, click Switching →
Network Security → Proprietary Protocol Filtering → LLPF Interface
Configuration the navigation menu.