Concept Guide

Conguring FEFD
You can congure FEFD for all interfaces from CONFIGURATION mode, or on individual interfaces from INTERFACE mode.
To enable FEFD globally on all interfaces, use the following command.
• Enable FEFD globally on all interfaces.
CONFIGURATION mode
fefd-global
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 Enable the necessary ports administratively.
INTERFACE mode
no shutdown
3 Enable fefd globally.
CONFIGURATION mode
fefd-global {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.
DellEMC#show fefd
FEFD is globally 'ON', interval is 3 seconds, mode is 'Normal'.
INTERFACE MODE INTERVAL STATE
(second)
Te 1/1 Normal 3 Bi-directional
Te 1/2 Normal 3 Admin Shutdown
Te 1/3 Normal 3 Admin Shutdown
Te 1/4 Normal 3 Admin Shutdown
DellEMC#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
560
Layer 2