diff --git a/core/api/src/main/java/org/onosproject/net/config/basics/BandwidthCapacity.java b/core/api/src/main/java/org/onosproject/net/config/basics/BandwidthCapacity.java
index f9f7b3c..e0c43dc 100644
--- a/core/api/src/main/java/org/onosproject/net/config/basics/BandwidthCapacity.java
+++ b/core/api/src/main/java/org/onosproject/net/config/basics/BandwidthCapacity.java
@@ -45,6 +45,9 @@
 
     @Override
     public boolean isValid() {
+        // Validate the capacity
+        capacity();
+
         // Open for extension (adding fields) in the future,
         // must have CAPACITY field.
         return isNumber(CAPACITY, FieldPresence.MANDATORY);