Reference Guide

UDLD 415
– Fiber Port UDLD Default State —This field is only relevant for fiber
ports. The UDLD state of copper ports must be set individually in the
UDLD Interface Settings page. The possible states are:
•
Disabled —UDLD is disabled on all ports of the device.
•
Normal —Device shuts down an interface if the link is
unidirectional. If the link is undetermined, a notification is
issued.
•
Aggressive —Device shuts down an interface if the link is
unidirectional or undetermined.
3 Click Apply to save the settings to the Running Configuration file.
Defining UDLD Global Parameters Using CLI Commands
The following table summarizes the CLI commands for defining and
displaying UDLD global parameters as displayed in the UDLD Global
Settings pages.
Table 18-1. UDLD Global Parameter CLI Commands
CLI Command Description
udld aggressive | normal
no udld
Enables UDLD functionality and sets its
mode on fiber interfaces only.
Use the no form of this command to
disable UDLD functionality.
udld message time seconds
no udld message time
Configures a global timeout value of the
interval between two sent probe messages.
Use the no form of this command to
restore the default configuration.
show udld [interface-id]
[neighbors]
Displays the administrative and
operational UDLD status.