Cisco CATALYST 2960 - Understanding Network Time Protocol; The NTP is designed to time-synchronize a network of devices. NTP runs over User Datagram Protocol (UDP), which runs over IP. NTP is documented in RFC 1305.; The time kept on a device is a critical resource; you should use the security features of NTP to avoid the accidental or malicious setting of an incorrect time. Two mechanisms are available: an access list-based restriction scheme and an encrypted authentication mechanism.

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Catalyst 2960 Switch Command Reference
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Chapter 2 Catalyst 2960 Switch Cisco IOS Commands
dot1x timeout
Related Commands Command Description
dot1x max-req Sets the maximum number of times that the switch sends an
EAP-request/identity frame before restarting the authentication process.
dot1x reauthentication Enables periodic re-authentication of the client.
show dot1x Displays IEEE 802.1x status for all ports.