UDLD

Unidirectional Link Detection (UDLD) configuration manages global UDLD behavior on NX-OS devices. UDLD detects and disables unidirectional links caused by fiber or cable faults. Settings include aggressive mode, which automatically error-disables ports with unidirectional links, and the message interval that controls how frequently UDLD probes are sent.

Diagram

Classes

configuration (nxos.devices)

Name	Type	Constraint	Mandatory	Default Value
udld	Class	[udld]	No

udld (nxos.devices.configuration)

Name	Type	Constraint	Mandatory	Default Value
aggressive	Boolean	true, false	No
message_time	Integer	min: 7, max: 90	No

Examples

Example 1: UDLD in normal mode with custom message interval

nxos:
  devices:
    - name: LEAF1
      configuration:
        feature:
          udld: true
        udld:
          aggressive: false
          message_time: 15

Example 2: UDLD in aggressive mode for automatic link error detection

nxos:
  devices:
    - name: LEAF1
      configuration:
        feature:
          udld: true
        udld:
          aggressive: true
          message_time: 7