Far-End Failure Detection (Fefd); Debug Fefd - Dell C9000 Series Reference Manual

In the Default VLAN, you cannot use the no untagged interface command. To
remove an untagged interface from all VLANs, including the Default VLAN, enter
INTERFACE mode and use the no switchport command.
Related
Commands

Far-End Failure Detection (FEFD)

The Dell Networking operating software supports far-end failure detection (FEFD) on the Ethernet interfaces.
The FEFD feature detects and reports far-end link failures.
• FEFD is not supported on the Management interface.
• During an RPM failover, FEFD is operationally disabled for approximately 8 to 10 seconds.
• By default, FEFD is disabled.

debug fefd

Enable debugging of FEFD.
C9000 Series
Syntax
debug fefd {events | packets} [interface]
To disable debugging of FEFD, use the no debug fefd {events | packets}
[interface] command.
Parameters
events
packets
interface
Command Modes EXEC Privilege
• interface vlan — configures a VLAN.
• tagged — specifies which interfaces in a VLAN are tagged.
Enter the keyword events to enable debugging of FEFD state
changes.
Enter the keyword packets to enable debugging of FEFD to
view information on packets sent and received.
(OPTIONAL) Enter the following keywords and slot/port or
number information:
•
•
For a 10-Gigabit Ethernet interface, enter the keyword
TenGigabitEthernet then the slot/port information.
For a 40-Gigabit Ethernet interface, enter the keyword
fortyGigE then the slot/ port information.
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