Reference Guide

Far-End Failure Detection (FEFD) | 481
fefd-global
e
Enable FEFD globally on the system.
Syntax
fefd-global [mode {normal | aggressive}]
To disable FEFD globally, use the no fefd-global [mode {normal | aggressive}] command
syntax.
Parameters
Defaults
Disabled.
Command Modes
CONFIGURATION
Usage
Information
If you enter only the fefd-global syntax, the mode is normal and the default interval is 15 seconds.
If you disable FEFD globally (no fefd-global), the system does not remove the FEFD interface
configuration.
fefd disable
e
Disable FEFD on an interface only. This command overrides the fefd-global command for the
interface.
Syntax
fefd disable
To re-enable FEFD on an interface, enter no fefd disable.
Default
Not configured.
Command Modes
INTERFACE
fefd interval
e
Set an interval between control packets.
Syntax
fefd interval seconds
To return to the default value, enter no fefd interval.
mode normal (OPTIONAL) Enter the keywords mode normal to 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 “unknown” state, the software brings down the
line protocol.
Normal mode is the default.
mode aggressive (OPTIONAL) Enter the keyword mode aggressive to 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 “error-disabled” state, you must enter the
fefd reset command to reset the interface state.