This reflects whether an operator has administratively enabled this static co-routed bidirectional tunnel; because it's a manually-configured LSP there's no RSVP-TE signaling layer to independently override this setting. An admin relies on this as the sole gate on the tunnel's intended state, and since the tunnel carries both directions, disabling it here takes down the full two-way circuit rather than just one leg. For example, an admin who disables this to perform maintenance on the far-end device knows both send and receive traffic for the associated circuit stop simultaneously, not just the leg they're touching.