This is the operational trigger an admin writes to actually start or stop the lock condition on demand, distinct from swCFMExtMgmtLockState which merely enables the lock feature's availability; this action object is what actually asserts or releases the lock at a specific moment during a maintenance procedure. It matters as the precise timing control for when downstream systems should start, and later stop, treating this segment's connectivity gap as expected maintenance rather than a fault. A technician would write start(1) to this object at the exact moment they begin the disruptive maintenance step, then write stop(2) the instant the link is restored, bracketing the exact window during which downstream alarms are suppressed.