Far-End Failure Detection (FEFD) | 483
Parameters
Command Modes
EXEC
EXEC Privilege
Example
Figure 17-1.  Command Example: show fefd 
interface
(OPTIONAL) Enter the following keywords and slot/port or number information:
• For a 1-Gigabit Ethernet interface, enter the keyword 
GigabitEthernet followed 
by the slot/port information. 
• For a SONET interface, enter the keyword 
sonet followed by the slot/port 
information. 
• For a 10-Gigabit Ethernet interface, enter the keyword 
TenGigabitEthernet 
followed by the slot/port information. 
Table 17-1.  Description of show fefd display
Field Description
Interface Displays the interfaces type and number.
Mode Displays the mode (aggressive or normal) or NA if the interface contains fefd disable in 
its configuration.
Interval Displays the interval between FEFD packets.
State Displays the state of the interface and can be one of the following:
• bi-directional (interface is up and connected and seeing neighbor’s echo)
• err-disabled (only found when the FEFD mode is aggressive and when the interface 
has not seen its neighbor’s echo for 3 times the message interval. To reset an interface 
in this state, use the fefd reset command.)
• unknown (only found when FEFD mode is normal
• locally disabled (interface contains the fefd disable command in its configuration)
• Admin Shutdown (interface is disabled with the shutdown command)
FTOS#sh fefd
FEFD is globally 'ON', interval is 10 seconds, mode is 'Aggressive'.
INTERFACE      MODE           INTERVAL       STATE          
                              (second)                    
Gi 5/0         Aggressive     10             Admin Shutdown 
Gi 5/1         Aggressive     10             Admin Shutdown 
Gi 5/2         Aggressive     10             Admin Shutdown 
Gi 5/3         Aggressive     10             Admin Shutdown 
Gi 5/4         Aggressive     10             Admin Shutdown 
Gi 5/5         Aggressive     10             Admin Shutdown 
Gi 5/6         Aggressive     10             Admin Shutdown 
Gi 5/7         Aggressive     10             Admin Shutdown 
Gi 5/8         Aggressive     10             Admin Shutdown 
Gi 5/9         Aggressive     10             Admin Shutdown 
Gi 5/10        NA             NA             Locally disabled
Gi 5/11        Aggressive     10             Err-disabled 
FTOS#