diff --git a/impl/src/main/java/org/opencord/olt/impl/OsgiPropertyConstants.java b/impl/src/main/java/org/opencord/olt/impl/OsgiPropertyConstants.java
index 0e82f37..3657436 100644
--- a/impl/src/main/java/org/opencord/olt/impl/OsgiPropertyConstants.java
+++ b/impl/src/main/java/org/opencord/olt/impl/OsgiPropertyConstants.java
@@ -45,6 +45,10 @@
     public static final String DEFAULT_TP_ID = "defaultTechProfileId";
     public static final int DEFAULT_TP_ID_DEFAULT = 64;
 
+    public static final String ZERO_REFERENCE_METER_COUNT = "zeroReferenceMeterCount";
+    public static final int ZERO_REFERENCE_METER_COUNT_DEFAULT = 3;
+
+
     public static final String DEFAULT_BP_ID = "defaultBpId";
     public static final String DEFAULT_BP_ID_DEFAULT = "Default";