This example shows how to disable periodic reauthentication of 802.1X supplicants on an interface:
switch# configure terminal
switch(config)# interface ethernet 2/1
switch(config-if)# no dot1x re-authentication
Related Commands
DescriptionCommand
Enables the 802.1X feature.feature dot1x
Displays all 802.1X information.show dot1x all
   Cisco Nexus 7000 Series Security Command Reference
204
D Commands
dot1x re-authentication (global configuration and interface configuration)