show authentication sessions interface GigabitEthernet3/0/1 detailsUsed as a place holder. Not much more text really needs to be added except an example. This is used primarily to show the “authentication” status of a port of a switch. I.e. if the some form of authentication has occurred and it’s status. Typically this can be used to determine if authentication passed; what policies are in place; and which VLANS were presented as a result.