Far-End Failure Detection (Fefd) - Dell Z9500 Command Reference Manual

Table of Contents

Untagged interfaces can only belong to one VLAN.

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.

interface vlan

Far-End Failure Detection (FEFD)

The Dell Networking operating software supports far-end failure detection (FEFD) on the Ethernet

interfaces of the platform.

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.

Enable debugging of FEFD.

debug fefd {events | packets} [interface]

To disable debugging of FEFD, use the no debug fefd {events | packets}

[interface] command.

— configures a VLAN.

— 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.