Administrator Guide

fefd mode
Change the FEFD mode on an interface.
Syntax
fefd mode {normal | aggressive}]
To return the FEFD mode to the default of normal, use the no fefd mode command.
Parameters
normal (OPTIONAL) Enter the keyword normal to change the link state to “unknown”
when a far-end failure the software detects on that interface. When the interface
is placed in “unknown” state, the software brings down the line protocol.
aggressive (OPTIONAL) Enter the keyword aggressive to change the link state to “error-
disabled” when a far-end failure the software detects on that interface. When an
interface is placed in “error-disabled” state, enter the fefd reset command to
reset the interface state.
Defaults Normal
Command Modes INTERFACE
Command
History
This guide is platform-specific. For command information about other platforms, see the relevant Dell
EMC Networking OS Command Line Reference Guide.
Version Description
9.10(0.1) Introduced on the S6010-ON and S4048T-ON.
9.10(0.0) Introduced on the S3148.
9.10(0.0) Introduced on the S6100–ON.
9.8(2.0) Introduced on the S3100 series.
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.
8.3.19.0 Introduced on the S4820T.
8.3.11.1 Introduced on the Z9000.
8.3.7.0 Introduced on the S4810.
Legacy E-Series
command.
Related
Commands
● fefd — enable far-end failure detection.
fefd reset
Reset all interfaces or a single interface that was in “error-disabled” mode.
Syntax
fefd reset [interface]
Parameters
interface (OPTIONAL) Enter the following keywords and the interface information:
● For a 1-GigabitEthernet interface, enter the keyword GigabitEthernet then
the slot/port information.
● For a 10-Gigabit Ethernet interface, enter the keyword
TenGigabitEthernet then the slot/port information.
902 Layer 2