Which command is used to set the link-failed-signal in High Availability?

The command that sets the link-failed-signal in a High Availability configuration is found in the correct response, which specifies to enable this feature. This option effectively allows the administrator to configure the behavior of the High Availability setup regarding signal failure on the link used for synchronization between primary and secondary devices.

When link-failed-signal is enabled, it ensures that the system can actively detect link failures and respond accordingly, which is essential for maintaining high availability and minimizing downtime. This behavior is critical in ensuring that the standby unit can take over efficiently if the primary unit loses connectivity, thus enhancing the reliability of the network.

The other commands listed serve different functions in the High Availability configuration process. For instance, while one might enter a general configuration mode for HA or set the HA mode, they do not specifically handle the link failure signal feature. Each command has its specific role, making the precise wording of enabling the link-failed-signal crucial for the intended effect.