unidirectional links. A unidirectional link is a forwarding anomaly in a Layer 2 communication channel in
which a bidirectional link stops passing traffic in one direction.
To access the UDLD Configuration page, click
Switching
>
UDLD
>
Configuration
in the navigation
menu.
Table 164: UDLD Configuration Fields
Field
Description
Admin Mode
The administrative mode of UDLD on the device. UDLD must be administratively
enabled on the device and on an interface for that interface to send UDLD
messages. Additionally, UDLD must be enabled on the both sides of the link for
the device to detect a unidirectional link.
Message Interval (Seconds)
The amount of time to wait between sending UDLD probe messages on ports
that are in the advertisement phase.
Timeout Interval (Seconds)
The amount of time to wait to receive a UDLD message before considering the
UDLD link to be unidirectional.
Click
Refresh
to display the latest information from the router.
If you change any information on the page, click
Submit
to apply the changes to the system.
UDLD Interface Configuration
Use the UDLD Interface Configuration page to configure the per-port UDLD settings.
To access this page, click
Switching
>
UDLD
>
Interface Configuration
in the navigation menu.
Use the buttons to perform the following tasks:
•
To configure UDLD settings for one or more interfaces, select each interface to configure and click
Edit
. The same settings are applied to all selected interfaces.
•
To reset all UDLD ports that have a UDLD Status of Shutdown, click
UDLD Port Reset
. If the global
and interface UDLD administrative mode is enabled and the port link is up, the port restarts the
exchange of UDLD messages with its link partner. The UDLD port status is Shutdown if UDLD has
detected an unidirectional link and has put the port in a disabled state.
Table 165: UDLD Interface Configuration Fields
Field
Description
Interface
The interface associated with the rest of the data in the row. In the Edit UDLD
Interface Configuration window, this field identifies each interface that is being
configured.
Admin Mode
The administrative mode of UDLD on the port.
Configuring Switching Information
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