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:

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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.
UDLD Mode The UDLD mode for the port, which is one of the following:
  • Normal: The state of the port is classified as Undetermined if an anomaly exists. An anomaly might be the absence of its own information in received UDLD messages or the failure to receive UDLD messages. An Undetermined state has no effect on the operation of the port. The port is not disabled and continues operating. When operating in UDLD normal mode, a port will be put into a disabled (Shutdown) state only in the following situations:
    • The UDLD PDU received from a partner does not have its own details (echo).
    • When there is a loopback, and information sent out on a port is received back exactly as it was sent.
  • Aggressive: The port is put into a disabled state for the same reasons that it occurs in normal mode. Additionally, a port in UDLD aggressive mode can be disabled if the port does not receive any UDLD echo packets even after bidirectional connection was established. If a bidirectional link is established, and packets suddenly stop coming from partner device, the UDLD aggressive-mode port assumes that link has become unidirectional.
UDLD Status The UDLD status on the port, which is one of the following:
  • Not Applicable: The administrative status of UDLD is globally disabled or disabled on the interface.
  • Bidirectional: UDLD has detected a bidirectional link.
  • Shutdown: UDLD has detected a unidirectional link, and the port is in a disabled state. To clear the disabled state, click UDLD Port Reset.
  • Undetermined: UDLD has not collected enough information to determine the state of the port.
  • Unknown: The port link has physically gone down, but it is not because it was put in a disabled state by the UDLD feature.

Click Refreshto display the latest information from the router.

If you change any information on the page, click Submit to apply the changes to the system.