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Dell Command Line Reference Guide for the S4048–ON System 9.14.2.8

show fefd

View FEFD status globally or on a specific interface.

Syntax
show fefd [interface]
Parameters
interface
(OPTIONAL) Enter the following keywords and the interface information:
  • For a 10-Gigabit Ethernet interface, enter the keyword TenGigabitEthernet then the slot/port[/subport] information.
  • For a 40-Gigabit Ethernet interface, enter the keyword fortyGigE then the slot/port information.
Command Modes
  • EXEC
  • EXEC Privilege
Command History

This guide is platform-specific. For command information about other platforms, see the relevant Dell EMC Networking OS Command Line Reference Guide.

Version
Description
9.10(0.1)
Introduced on the S6010-ON and S4048T-ON.
9.10(0.0)
Introduced on the S3148.
9.10(0.0)
Introduced on the S6100–ON.
9.8(2.0)
Introduced on the S3100 series.
9.8(1.0)
Introduced on the Z9100–ON.
9.8(0.0P5)
Introduced on the S4048-ON.
9.8(0.0P2)
Introduced on the S3048-ON.
9.7(0.0)
Introduced on the S6000-ON.
9.2(1.0)
Introduced on the Z9500.
9.0.2.0
Introduced on the S6000.
8.3.19.0
Introduced on the S4820T.
8.3.11.1
Introduced on the Z9000.
8.3.12.0
Introduced on the S4810.
Legacy E-Series command.
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
DellEMC# show fefd
FEFD is globally 'ON', interval is 10 seconds, mode is 'Aggressive'.

INTERFACE MODE       INTERVAL   STATE
                     (second)
Te 5/1   Aggressive  10         Admin Shutdown
Te 5/2   Aggressive  10         Admin Shutdown
Te 5/3   Aggressive  10         Admin Shutdown
Te 5/4   Aggressive  10         Admin Shutdown
Te 5/5   Aggressive  10         Admin Shutdown
Te 5/6   Aggressive  10         Admin Shutdown
Te 5/7   Aggressive  10         Admin Shutdown
Te 5/8   Aggressive  10         Admin Shutdown
Te 5/9   Aggressive  10         Admin Shutdown
Te 5/10  NA          NA         Locally disabled
Te 5/11  Aggressive  10         Err-disabled
DellEMC#
Related Commands
  • fefd — enable far-end failure detection.
  • fefd disable — disable FEFD on an interface only.
  • fefd-global — enable FEFD globally on the system.
  • fefd reset — reset all interfaces or a single interface that was in “error-disabled” mode.

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