Dell C9000 series, Reference Manual

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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.
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.
C9000 Series
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.
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