Command
Modes
EXEC Privilege
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
9.2(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.
Related
Commands •fefd — enables far-end failure detection on an interface.
•fefd reset — enables FEFD globally on the system.
fefd
Enable Far-End Failure Detection on an interface, set the FEFD interval, or select the FEFD mode.
Z9500
Syntax fefd {disable|interval|mode {aggressive|normal}
Parameters disable Enter the keyword disable to disable FEFD for the specified
interface.
interval Enter the keyword interval, followed by a value to specify the
FEFD interval in seconds. Range is from 3 to 300. Default is
15.
mode Enter the keyword mode followed by the mode type to
specify the FEFD mode.
•normal: Change the link state to “unknown” when a far-
end failure is detected by the software on that interface.
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.
Layer 2 1165