This counts the full LMI STATUS frames, the periodic exchanges that list every PVC and its current state as opposed to simple keepalive STATUS frames, received from the DTE since the last reset. An admin uses this to confirm that periodic full PVC-status updates are actually arriving, since if this counter stalls, the port may not be learning about remote PVC status changes even though basic link-integrity STATUS frames continue. For example, a technician troubleshooting a PVC showing stale active status despite the far end reporting it down would check whether lportDTEInFullStatusFrames is still incrementing on schedule.