Reference Guide

Usage
Information
The following describes the show fefd command shown in the following example.
Field Description
Interface Displays the interfaces type and number.
Mode Displays the mode (aggressive or normal) or NA if the interface
contains fefd reset 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, connected and hearing
neighbor’s echoes).
• 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
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#
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.
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