diff --git a/apps/optical/src/main/java/org/onosproject/optical/cfg/OpticalNetworkConfig.java b/apps/optical/src/main/java/org/onosproject/optical/cfg/OpticalNetworkConfig.java
index bfc8ab9..f3f8d17 100644
--- a/apps/optical/src/main/java/org/onosproject/optical/cfg/OpticalNetworkConfig.java
+++ b/apps/optical/src/main/java/org/onosproject/optical/cfg/OpticalNetworkConfig.java
@@ -23,6 +23,8 @@
 
 /**
  * Public class corresponding to JSON described data model.
+ *
+ * @deprecated in Cardinal Release
  */
 @Deprecated
 public class OpticalNetworkConfig {