debug dot1x
Display 802.1X debugging information.
C-Series, E-Series, S-Series, S4810
Syntax
debug dot1x [all | auth-pae-fsm | backend-fsm | eapol-pdu] 
[interface interface]
Parameters
all Enable all 802.1X debug messages.
auth-pae-fsm Enable authentication PAE FSM debug messages.
backend-fsm Enable backend FSM debug messages.
eapol-pdu Enable the EAPOL frame trace and related debug messages.
interface 
interface
Restricts the debugging information to an interface.
Defaults Disabled
Command Modes EXEC Privilege
Command History
Version 8.3.12.0 Introduced on the S4810.
Version 8.4.1.0 Introduced on the C-Series and S-Series.
dot1x auth-fail-vlan
Configure an authentication failure VLAN for users and devices that fail 802.1X authentication.
C-Series, E-Series, S-Series, S4810
Syntax
dot1x auth-fail-vlan vlan-id [max-attempts number]
To delete the authentication failure VLAN, use the no dot1x auth-fail-vlan vlan-
id
 [max-attempts number] command.
Parameters
vlan-id
Enter the VLAN Identifier. The range is 1 to 4094.
max-attempts 
number
(OPTIONAL) Enter the keywords max-attempts followed number 
of attempts desired before authentication fails. The range is 1 to 5. 
The default is 
3.
Defaults 3 attempts
Command Modes CONFIGURATION (
conf-if-interface-slot/port
)
Command History
Version 8.3.12.0 Introduced on the S4810.
196