diff --git a/core/api/src/main/java/org/onosproject/net/config/Config.java b/core/api/src/main/java/org/onosproject/net/config/Config.java
index 5f2c9f3..0a3d87f 100644
--- a/core/api/src/main/java/org/onosproject/net/config/Config.java
+++ b/core/api/src/main/java/org/onosproject/net/config/Config.java
@@ -459,6 +459,19 @@
     }
 
     /**
+     * Indicates whether the specified field holds a valid boolean value.
+     *
+     * @param field    JSON field name
+     * @param presence specifies if field is optional or mandatory
+     * @return true if valid; false otherwise
+     * @throws IllegalArgumentException if field is present, but not valid
+     */
+    protected boolean isBoolean(String field, FieldPresence presence) {
+        JsonNode node = object.path(field);
+        return isValid(node, presence, node.isBoolean());
+    }
+
+    /**
      * Indicates whether the node is present and of correct value or not
      * mandatory and absent.
      *
@@ -471,5 +484,4 @@
         boolean isMandatory = presence == FieldPresence.MANDATORY;
         return isMandatory && correctValue || !isMandatory && !node.isNull() || correctValue;
     }
-
 }