Reference Guide

When the interface is placed in an “unknown” state, the
software brings down the line protocol.
• aggressive: Change the link state to “error-disabled”
when a far-end failure is detected by the software on
that interface. When an interface is placed in an “error-
disabled” state, you must enter the fefd reset
command to reset the interface state. Range is normal
or aggressive. Default is normal.
Defaults Disabled.
Command Modes INTERFACE
Command History
This guide is platform-specific. For command information about other platforms,
refer to the relevant Dell Networking OS Command Line Reference Guide.
The following is a list of the Dell Networking OS version history for this command.
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 When you enter no fefd for an interface and fefd-global, FEFD is enabled on
the interface because the no fefd command is not retained in the configuration
file. To keep the interface FEFD disabled when the global configuration changes,
use the
fefd reset command.
Related
Commands
• fefd disable — disables far-end failure detection on an interface.
• fefd reset — enables FEFD globally on the system.
• fefd mode — changes FEFD mode on an interface.
fefd disable
Disable FEFD on an interface only. This command overrides the fefd reset command for the interface.
C9000 Series
Syntax
fefd disable
To re-enable FEFD on an interface, use the no fefd disable command.
Defaults Not configured.
Command Modes INTERFACE
1252
Layer 2