diff --git a/core/api/src/main/java/org/onosproject/net/behaviour/inbandtelemetry/IntDeviceConfig.java b/core/api/src/main/java/org/onosproject/net/behaviour/inbandtelemetry/IntDeviceConfig.java
index e1790bc..a21a2ae 100644
--- a/core/api/src/main/java/org/onosproject/net/behaviour/inbandtelemetry/IntDeviceConfig.java
+++ b/core/api/src/main/java/org/onosproject/net/behaviour/inbandtelemetry/IntDeviceConfig.java
@@ -170,12 +170,11 @@
      * An IntConfig object builder.
      */
     public static final class Builder {
-
-        private IpAddress collectorIp;
-        private TpPort collectorPort;
-        private MacAddress collectorNextHopMac;
-        private IpAddress sinkIp;
-        private MacAddress sinkMac;
+        private IpAddress collectorIp = IpAddress.valueOf(0);
+        private TpPort collectorPort = TpPort.tpPort(0);
+        private MacAddress collectorNextHopMac = MacAddress.valueOf(0);
+        private IpAddress sinkIp = IpAddress.valueOf(0);
+        private MacAddress sinkMac = MacAddress.valueOf(0);
         private TelemetrySpec spec = TelemetrySpec.INT;
         private boolean enabled = false;
         int minFlowHopLatencyChangeNs = 0;