Administrator Guide

Version Description
9.9(0.0) Introduced on the C9010.
9.2(1.0) Introduced on the Z9500.
8.3.19.0 Introduced on the S4820T.
8.3.11.1 Introduced on the Z9000.
8.3.12.0 Introduced on the S4810.
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
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.
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