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To report interval frequency and mode adjustments, use the following commands.
1. Setup two or more connected interfaces for Layer 2 or Layer 3.
INTERFACE mode
ip address ip address, switchport
2. Activate the necessary ports administratively.
INTEFACE mode
no shutdown
3. Enable fefd globally.
CONFIGURATION mode
fefd {interval | mode}
Example of the show fefd Command
To display information about the state of each interface, use the show fefd command in EXEC privilege
mode.
Dell#show fefd
FEFD is globally 'ON', interval is 3 seconds, mode is 'Normal'.
INTERFACE MODE INTERVAL STATE
(second)
Te 1/0 Normal 3 Bi-directional
Te 1/1 Normal 3 Admin Shutdown
Te 1/2 Normal 3 Admin Shutdown
Te 1/3 Normal 3 Admin Shutdown
Dell#show run fefd
!
fefd-global mode normal
fefd-global interval 3
Enabling FEFD on an Interface
To enable, change, or disable FEFD on an interface, use the following commands.
• Enable FEFD on a per interface basis.
INTERFACE mode
fefd
• Change the FEFD mode.
INTERFACE mode
fefd [mode {aggressive | normal}]
• Disable FEFD protocol on one interface.
INTERFACE mode
fefd disable
Disabling an interface shuts down all protocols working on that interface’s connected line. It does not
delete your previous FEFD configuration which you can enable again at any time.
Layer 2
541