Fefd - Dell C9000 Series Reference Manual

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
9.9(0.0)
9.2(1.0)
8.3.19.0
8.3.11.1
8.3.12.0
Related
Commands

fefd

Enable Far-End Failure Detection on an interface, set the FEFD interval, or select the FEFD mode.
C9000 Series
Syntax
fefd {disable|interval|mode {aggressive|normal}
Parameters
disable
interval
mode
Defaults Disabled.
Description
Introduced on the C9010.
Introduced on the Z9500.
Introduced on the S4820T.
Introduced on the Z9000.
Introduced on the S4810.
• fefd — enables far-end failure detection on an interface.
• fefd reset — enables FEFD globally on the system.
Enter the keyword disable to disable FEFD for the specified
interface.
Enter the keyword interval, followed by a value to specify the
FEFD interval in seconds. Range is from 3 to 300. Default is 15.
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.
Layer 2 1340