Reference Guide

992 | Layer 2
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Far-End Failure Detection (FEFD)
Overview
FTOS supports Far-End Failure Detection (FEFD) on the Ethernet interfaces of the
following platforms as indicated by the characters that appear under each of the
command headings: E-Series
e, S4810
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.
Commands
The FEFD commands are:
•debug fefd
•fefd
• fefd reset
• fefd reset
• fefd reset
• fefd reset
• fefd mode
• fefd reset
• show fefd
debug fefd
e
Enable debugging of FEFD.
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.