diff --git a/core/api/src/main/java/org/onosproject/net/behaviour/PowerConfig.java b/core/api/src/main/java/org/onosproject/net/behaviour/PowerConfig.java
index d171c17..92bfba6 100644
--- a/core/api/src/main/java/org/onosproject/net/behaviour/PowerConfig.java
+++ b/core/api/src/main/java/org/onosproject/net/behaviour/PowerConfig.java
@@ -55,7 +55,7 @@
     void setTargetPower(PortNumber port, T component, long power);
 
     /**
-     * Get the current power on the component.
+     * Get the current output power on the component.
      *
      * @param port the port
      * @param component the port component
@@ -64,6 +64,16 @@
     Optional<Long> currentPower(PortNumber port, T component);
 
     /**
+     * Get the current input power on the component.
+     * @param port the port
+     * @param component the port component
+     * @return power in .01 dBm
+     */
+    default Optional<Long> currentInputPower(PortNumber port, T component)  {
+        return Optional.empty();
+    }
+
+    /**
      * Get the acceptable target power range for setTargetPower,
      * as optical components have different configurable output power ranges.
      *