Service Manual

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
Command History
This guide is platform-specific. For command information about other platforms, see
the relevant Dell Networking OS Command Line Reference Guide.
Version Description
9.8(1.0) Introduced on the Z9100–ON.
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.
Layer 2 1207