What command verifies the UDLD neighbors on a network device?

The command that verifies the UDLD (Unidirectional Link Detection) neighbors on a network device is the one that specifically targets neighbor relationships established through UDLD. The command "show udld neighbor" provides a clear view of these relationships, displaying the neighboring devices that have been discovered by UDLD. This output includes details such as the port identifiers and the status of the links between devices, allowing network engineers to diagnose and monitor the health of these connections effectively.

Understanding UDLD is crucial because it helps prevent issues caused by unidirectional links, which can lead to network loops and other connectivity problems. By using this command, you can ensure that the network topology remains stable and that all devices are communicating as expected.

The other commands mentioned do not provide a direct and specific report on UDLD neighbors, making them less suitable for this particular verification task.