diff --git a/app/src/main/java/org/opencord/olt/internalapi/AccessDeviceFlowService.java b/app/src/main/java/org/opencord/olt/internalapi/AccessDeviceFlowService.java
index 362b154..d4cc09f 100644
--- a/app/src/main/java/org/opencord/olt/internalapi/AccessDeviceFlowService.java
+++ b/app/src/main/java/org/opencord/olt/internalapi/AccessDeviceFlowService.java
@@ -145,4 +145,10 @@
                                                   PortNumber subscriberPort,
                                                   MeterId downstreamMeterId,
                                                   UniTagInformation tagInformation);
+
+    /**
+     * Clears pending mappings and state for device.
+     * @param deviceId the device id
+     */
+    void clearDeviceState(DeviceId deviceId);
 }