In an HA deployment, which monitoring should be enabled on the primary device interfaces?

• A. Enable HA monitoring on all primary device interfaces.
• B. Enable HA monitoring on all secondary device interfaces.
• C. Disable HA monitoring entirely.
• D. Enable SNMP monitoring on management interface.

Answer: (A)

In an HA setup, the failover decision is driven by the health of the interfaces that carry client traffic. Enabling HA monitoring on all primary device interfaces ensures the system continuously checks these critical paths, so if any of them fail or degrade, the primary is regarded as unhealthy and traffic can fail over to the secondary without delay. Monitoring secondary interfaces would not reflect the active path’s health and could miss issues that affect user traffic. Disabling HA monitoring stops automatic failover entirely, defeating high availability. SNMP on the management interface is for management visibility and does not influence HA failover decisions, since it doesn’t assess the health of the data-path interfaces.