Reference Guide

UDLD 417
UDLD Interface Settings
Use the UDLD Interface Settings page to change the UDLD state for a
specific port. Here the state can be set for copper or fiber ports.
To copy a particular set of values to more than one port, set that value for one
port and use the Copy button to copy it to the other ports.
To configure UDLD for an interface:
1
Click Switching > UDLD > UDLD Interface Settings .
Information is displayed for all ports on which UDLD is enabled, or, if you
have filtered only a certain group of ports, information is displayed for that
group of ports.
–
Port —The port identifier.
–
UDLD State —The possible states are:
•
Disabled —UDLD is disabled on all fiber ports of the device.
•
Normal —Device shuts down an interface if it detects that the
link is unidirectional. It issues a notification if the link is
undetermined.
•
Aggressive —Device shuts down a port if the link is unidirectional
or undetermined.
–
Bidirectional State —Bidirectional state for the selected port. The
possible states are:
•
Detection —The latest UDLD state of the port is in the process
of being determined. Expiration time has not yet expired since
the last determination (if there was one), or since UDLD began
running on the port, so that the state is not yet determined.
•
Bidirectional —Traffic sent by the local device is received by its
neighbor, and traffic from the neighbor is received by the local
device.
•
Undetermined —The state of the link between the port and its
connected port cannot be determined either because no UDLD
message was received or the UDLD message did not contain the
local device ID in it.
•
Disabled —UDLD has been disabled on this port.