diff --git a/core/api/src/main/java/org/onosproject/net/GridType.java b/core/api/src/main/java/org/onosproject/net/GridType.java
index 099b847..8e9bc5b 100644
--- a/core/api/src/main/java/org/onosproject/net/GridType.java
+++ b/core/api/src/main/java/org/onosproject/net/GridType.java
@@ -23,7 +23,6 @@
  * </p>
  */
 public enum GridType {
-    RES,                // ??
     DWDM,               // Dense Wavelength Division Multiplexing
     CWDM,               // Coarse WDM
     FLEX                // Flex Grid