This text field describes the specific stage within the current FSM task that is executing against the physical-port object that tracks a fabric-interconnect port's configuration mode and the progress of its own discovery workflow. An administrator tracking a long-running discovery process on this Phys instance uses fsmStageDescr to see which sub-step (rather than just which overall task) is presently underway. For example, fsmStageDescr progressing through a series of named stages over successive polls confirms to the operator that the workflow on this Phys instance is actively moving forward.