This enumerated field (CucsFabricConfigState) reports the current configuration-application state (e.g. applied, failed, applying) for one individual physical port set aside for external NAS storage target connectivity (Estc) traffic. This is the value an admin checks on this NAS storage port right after pushing a change, to confirm the fabric interconnect actually finished applying it rather than leaving it stuck mid-configuration. A value of 'applied' means the last configuration change succeeded; 'failed-to-apply' would flag a change that didn't take on this specific object.