Siemens SCALANCE XC-200 Configuration Manual page 540

Security and authentication
11.5 Port Based Network Access Control
Syntax
Call the command without parameters:
no dot1x reauthentication
Result
Periodic authentication is disabled.
Further notes
You enable the function with the dot1x reauthentication command.
You can display the status of this function and other information with the show
dot1xcommand.
540
SCALANCE XB-200/XC-200/XF-200BA/XP-200/XR-300WG Command Line Interface
Configuration Manual, 07/2017, C79000-G8976-C361-06