Dell POWEREDGE M1000E - Manual (Page 524)

524 Configuring 802.1X and Port-Based Security
Figure 19-6. Port Access Control History Log Summary
Port Security
Use the Port Security page to enable MAC locking on a per-port basis. When
a port is locked, you can limit the number of source MAC addresses that are
allowed to transmit traffic on the port.
To display the Port Security page, click Switching → Network Security →
Port Security in the navigation panel.
Figure 19-7. Network Security Port Security