802.1x
The IEEE 802.1X standard defines a port-based access control procedure that
prevents unauthorized access to a network by requiring users to first submit
credentials for authentication.
When 802.1X is enabled, you need to configure the parameters for the authentication
process that runs between the client and the switch (i.e., authenticator), as well as the
client identity lookup process that runs between the switch and authentication server.
These parameters are described in this section.