This per-interface setting turns MAC address notification on or off for a specific port, letting an administrator selectively monitor MAC learning events only on the interfaces they care about, such as access ports where device visibility matters most. Administrators enable this on ports where they want to track connecting or disconnecting devices, while leaving trunk or uplink ports at the default disabled state to avoid unnecessary notification noise. For example, an admin monitoring for unauthorized devices on user access ports would enable this per-interface setting on those specific ports while leaving it off for switch-to-switch uplinks.