Administrator Guide

Field Description
● err-disabled (only found when FEFD mode is aggressive and when the interface
has not hearing its neighbor’s echoes for three 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 reset command in its
configuration).
● Admin Shutdown (interface is disabled with the shutdown command).
Example
Dell#sh fefd
FEFD is globally 'ON', interval is 10 seconds, mode is 'Aggressive'.
INTERFACE MODE INTERVAL STATE
(second)
Te 1/0 Aggressive 10 Admin Shutdown
Te 1/1 Aggressive 10 Admin Shutdown
Te 1/2 Aggressive 10 Admin Shutdown
Te 1/3 Aggressive 10 Admin Shutdown
Te 1/4 Aggressive 10 Admin Shutdown
Te 1/5 Aggressive 10 Admin Shutdown
Te 1/6 Aggressive 10 Admin Shutdown
Te 1/7 Aggressive 10 Admin Shutdown
Te 1/8 Aggressive 10 Admin Shutdown
Te 1/9 Aggressive 10 Admin Shutdown
Te 1/10 NA NA Locally disabled
Te 1/11 Aggressive 10 Err-disabled
Dell#
Related
Commands
● fefd — enables far-end failure detection.
● fefd disable — disables FEFD on an interface only.
● fefd-global — enables FEFD globally on the system.
● fefd reset — resets all interfaces or a single interface that was in “error-disabled” mode.
1040 Layer 2