CLI Guide

Version Description
9.8(2.0) Introduced on the S3100 series.
9.8(0.0P5) Introduced on the S4048-ON.
9.8(0.0P2) Introduced on the S3048-ON.
9.7(0.0) Introduced on the S6000-ON.
9.2(1.0) Introduced on the Z9500.
9.0.2.0 Introduced on the S6000.
8.3.19.0 Introduced on the S4820T.
8.3.11.1 Introduced on the Z9000.
8.3.12.0 Introduced on the S4810.
Legacy E-Series
command.
Related
Commands
• fefd — enable far-end failure detection on an interface.
• fefd reset — enable FEFD globally on the system.
fefd
Enable Far-End Failure Detection on an interface, set the FEFD interval, or select the FEFD mode.
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.
Command Modes INTERFACE
1064
Layer 2