Reference Guide

Far-End Failure Detection (FEFD)
The Dell Force10 operating software (FTOS) supports far-end failure detection (FEFD) on the Ethernet interfaces of the E-
Series, Z-Series, and S4810 platforms.
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 8-10 seconds.
• By default, FEFD is disabled.
debug fefd
Enable debugging of FEFD.
E-Series, Z-Series, S4810
Syntax
debug fefd {events | packets} [interface]
To disable debugging of FEFD, use the no debug fefd {events | packets}
[
interface] command.
Parameters
events Enter the keyword events to enable debugging of FEFD state
changes.
packets Enter the keyword packets to enable debugging of FEFD to view
information on packets sent and received.
interface (OPTIONAL) Enter the following keywords and slot/port or number
information:
• For a 1-Gigabit Ethernet interface, enter the keyword
GigabitEthernet followed by the slot/port information.
• For a SONET interface, enter the keyword sonet followed by
the slot/port information.
• For a 10-Gigabit Ethernet interface, enter the keyword
TenGigabitEthernet followed by the slot/port
information.
• For a 1-Gigabit Ethernet interface, enter the keyword
GigabitEthernet followed by the slot/port information.
• For a 40-Gigabit Ethernet interface, enter the keyword
fortyGigE followed by the slot/ port information.
Command Modes EXEC Privilege
Command History
Version 8.3.11.1 Introduced on the Z9000.
Version 8.3.12.0 Introduced on the S4810.
Legacy E-Series
command.
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