diff --git a/rw_core/core/device_state_transitions.go b/rw_core/core/device_state_transitions.go
index 88cc5fc..44eb484 100644
--- a/rw_core/core/device_state_transitions.go
+++ b/rw_core/core/device_state_transitions.go
@@ -55,112 +55,28 @@
 	transitionMap.transitions = make([]Transition, 0)
 	transitionMap.transitions = append(transitionMap.transitions,
 		Transition{
-			deviceType:    any,
-			previousState: DeviceState{Admin: voltha.AdminState_PREPROVISIONED, Connection: voltha.ConnectStatus_UNKNOWN, Operational: voltha.OperStatus_UNKNOWN},
-			currentState:  DeviceState{Admin: voltha.AdminState_UNKNOWN, Connection: voltha.ConnectStatus_UNKNOWN, Operational: voltha.OperStatus_UNKNOWN},
-			handlers:      []TransitionHandler{dMgr.NotifyInvalidTransition}})
-	transitionMap.transitions = append(transitionMap.transitions,
-		Transition{
-			deviceType:    any,
-			previousState: DeviceState{Admin: voltha.AdminState_PREPROVISIONED, Connection: voltha.ConnectStatus_UNKNOWN, Operational: voltha.OperStatus_UNKNOWN},
-			currentState:  DeviceState{Admin: voltha.AdminState_DOWNLOADING_IMAGE, Connection: voltha.ConnectStatus_UNKNOWN, Operational: voltha.OperStatus_UNKNOWN},
-			handlers:      []TransitionHandler{dMgr.NotifyInvalidTransition}})
-	transitionMap.transitions = append(transitionMap.transitions,
-		Transition{
-			deviceType:    any,
-			previousState: DeviceState{Admin: voltha.AdminState_ENABLED, Connection: voltha.ConnectStatus_UNKNOWN, Operational: voltha.OperStatus_UNKNOWN},
-			currentState:  DeviceState{Admin: voltha.AdminState_UNKNOWN, Connection: voltha.ConnectStatus_UNKNOWN, Operational: voltha.OperStatus_UNKNOWN},
-			handlers:      []TransitionHandler{dMgr.NotifyInvalidTransition}})
-	transitionMap.transitions = append(transitionMap.transitions,
-		Transition{
 			deviceType:    parent,
-			previousState: DeviceState{Admin: voltha.AdminState_PREPROVISIONED, Connection: voltha.ConnectStatus_UNKNOWN, Operational: voltha.OperStatus_ACTIVATING},
-			currentState:  DeviceState{Admin: voltha.AdminState_PREPROVISIONED, Connection: voltha.ConnectStatus_REACHABLE, Operational: voltha.OperStatus_ACTIVE},
-			handlers:      []TransitionHandler{dMgr.SetAdminStateToEnable}})
-	transitionMap.transitions = append(transitionMap.transitions,
-		Transition{
-			deviceType:    parent,
-			previousState: DeviceState{Admin: voltha.AdminState_PREPROVISIONED, Connection: voltha.ConnectStatus_REACHABLE, Operational: voltha.OperStatus_ACTIVE},
-			currentState:  DeviceState{Admin: voltha.AdminState_ENABLED, Connection: voltha.ConnectStatus_REACHABLE, Operational: voltha.OperStatus_ACTIVE},
+			previousState: DeviceState{Admin: voltha.AdminState_ENABLED, Connection: voltha.ConnectStatus_UNKNOWN, Operational: voltha.OperStatus_ACTIVATING},
+			currentState:  DeviceState{Admin: voltha.AdminState_ENABLED, Connection: voltha.ConnectStatus_UNKNOWN, Operational: voltha.OperStatus_ACTIVE},
 			handlers:      []TransitionHandler{dMgr.CreateLogicalDevice}})
 	transitionMap.transitions = append(transitionMap.transitions,
 		Transition{
-			deviceType:    parent,
-			previousState: DeviceState{Admin: voltha.AdminState_PREPROVISIONED, Connection: voltha.ConnectStatus_UNKNOWN, Operational: voltha.OperStatus_ACTIVE},
-			currentState:  DeviceState{Admin: voltha.AdminState_PREPROVISIONED, Connection: voltha.ConnectStatus_UNKNOWN, Operational: voltha.OperStatus_ACTIVATING},
-			handlers:      []TransitionHandler{dMgr.NotifyInvalidTransition}})
-	transitionMap.transitions = append(transitionMap.transitions,
-		Transition{
-			deviceType:    any,
-			previousState: DeviceState{Admin: voltha.AdminState_PREPROVISIONED, Connection: voltha.ConnectStatus_UNKNOWN, Operational: voltha.OperStatus_ACTIVATING},
-			currentState:  DeviceState{Admin: voltha.AdminState_PREPROVISIONED, Connection: voltha.ConnectStatus_UNKNOWN, Operational: voltha.OperStatus_UNKNOWN},
-			handlers:      []TransitionHandler{dMgr.NotifyInvalidTransition}})
+			deviceType:    child,
+			previousState: DeviceState{Admin: voltha.AdminState_ENABLED, Connection: voltha.ConnectStatus_UNKNOWN, Operational: voltha.OperStatus_DISCOVERED},
+			currentState:  DeviceState{Admin: voltha.AdminState_ENABLED, Connection: voltha.ConnectStatus_UNKNOWN, Operational: voltha.OperStatus_ACTIVE},
+			handlers:      []TransitionHandler{dMgr.SetupUNILogicalPorts}})
 	transitionMap.transitions = append(transitionMap.transitions,
 		Transition{
 			deviceType:    child,
-			previousState: DeviceState{Admin: voltha.AdminState_PREPROVISIONED, Connection: voltha.ConnectStatus_UNKNOWN, Operational: voltha.OperStatus_ACTIVATING},
-			currentState:  DeviceState{Admin: voltha.AdminState_PREPROVISIONED, Connection: voltha.ConnectStatus_REACHABLE, Operational: voltha.OperStatus_ACTIVE},
-			handlers:      []TransitionHandler{dMgr.SetAdminStateToEnable}})
-	transitionMap.transitions = append(transitionMap.transitions,
-		Transition{
-			deviceType:    child,
-			previousState: DeviceState{Admin: voltha.AdminState_PREPROVISIONED, Connection: voltha.ConnectStatus_UNKNOWN, Operational: voltha.OperStatus_ACTIVATING},
-			currentState:  DeviceState{Admin: voltha.AdminState_PREPROVISIONED, Connection: voltha.ConnectStatus_REACHABLE, Operational: voltha.OperStatus_DISCOVERED},
-			handlers:      []TransitionHandler{}})
-	transitionMap.transitions = append(transitionMap.transitions,
-		Transition{
-			deviceType:    child,
-			previousState: DeviceState{Admin: voltha.AdminState_PREPROVISIONED, Connection: voltha.ConnectStatus_REACHABLE, Operational: voltha.OperStatus_DISCOVERED},
-			currentState:  DeviceState{Admin: voltha.AdminState_PREPROVISIONED, Connection: voltha.ConnectStatus_REACHABLE, Operational: voltha.OperStatus_ACTIVE},
-			handlers:      []TransitionHandler{dMgr.SetAdminStateToEnable}})
-	transitionMap.transitions = append(transitionMap.transitions,
-		Transition{
-			deviceType:    child,
-			previousState: DeviceState{Admin: voltha.AdminState_PREPROVISIONED, Connection: voltha.ConnectStatus_REACHABLE, Operational: voltha.OperStatus_ACTIVATING},
-			currentState:  DeviceState{Admin: voltha.AdminState_PREPROVISIONED, Connection: voltha.ConnectStatus_REACHABLE, Operational: voltha.OperStatus_ACTIVE},
-			handlers:      []TransitionHandler{dMgr.SetAdminStateToEnable}})
-	transitionMap.transitions = append(transitionMap.transitions,
-		Transition{
-			deviceType:    child,
-			previousState: DeviceState{Admin: voltha.AdminState_PREPROVISIONED, Connection: voltha.ConnectStatus_REACHABLE, Operational: voltha.OperStatus_ACTIVE},
-			currentState:  DeviceState{Admin: voltha.AdminState_ENABLED, Connection: voltha.ConnectStatus_REACHABLE, Operational: voltha.OperStatus_ACTIVE},
+			previousState: DeviceState{Admin: voltha.AdminState_ENABLED, Connection: voltha.ConnectStatus_UNKNOWN, Operational: voltha.OperStatus_ACTIVATING},
+			currentState:  DeviceState{Admin: voltha.AdminState_ENABLED, Connection: voltha.ConnectStatus_UNKNOWN, Operational: voltha.OperStatus_ACTIVE},
 			handlers:      []TransitionHandler{dMgr.SetupUNILogicalPorts}})
 	transitionMap.transitions = append(transitionMap.transitions,
 		Transition{
 			deviceType:    parent,
 			previousState: DeviceState{Admin: voltha.AdminState_ENABLED, Connection: voltha.ConnectStatus_UNKNOWN, Operational: voltha.OperStatus_UNKNOWN},
 			currentState:  DeviceState{Admin: voltha.AdminState_DISABLED, Connection: voltha.ConnectStatus_UNKNOWN, Operational: voltha.OperStatus_UNKNOWN},
-			handlers:      []TransitionHandler{dMgr.DisableAllChildDevices}})
-	transitionMap.transitions = append(transitionMap.transitions,
-		Transition{
-			deviceType:    child,
-			previousState: DeviceState{Admin: voltha.AdminState_ENABLED, Connection: voltha.ConnectStatus_UNKNOWN, Operational: voltha.OperStatus_UNKNOWN},
-			currentState:  DeviceState{Admin: voltha.AdminState_DISABLED, Connection: voltha.ConnectStatus_UNKNOWN, Operational: voltha.OperStatus_UNKNOWN},
-			handlers:      []TransitionHandler{}})
-	transitionMap.transitions = append(transitionMap.transitions,
-		Transition{
-			deviceType:    any,
-			previousState: DeviceState{Admin: voltha.AdminState_ENABLED, Connection: voltha.ConnectStatus_UNKNOWN, Operational: voltha.OperStatus_UNKNOWN},
-			currentState:  DeviceState{Admin: voltha.AdminState_PREPROVISIONED, Connection: voltha.ConnectStatus_UNKNOWN, Operational: voltha.OperStatus_UNKNOWN},
-			handlers:      []TransitionHandler{dMgr.NotifyInvalidTransition}})
-	transitionMap.transitions = append(transitionMap.transitions,
-		Transition{
-			deviceType:    any,
-			previousState: DeviceState{Admin: voltha.AdminState_DISABLED, Connection: voltha.ConnectStatus_UNKNOWN, Operational: voltha.OperStatus_ACTIVATING},
-			currentState:  DeviceState{Admin: voltha.AdminState_DISABLED, Connection: voltha.ConnectStatus_UNKNOWN, Operational: voltha.OperStatus_ACTIVE},
-			handlers:      []TransitionHandler{dMgr.SetAdminStateToEnable}})
-	transitionMap.transitions = append(transitionMap.transitions,
-		Transition{
-			deviceType:    child,
-			previousState: DeviceState{Admin: voltha.AdminState_DISABLED, Connection: voltha.ConnectStatus_UNKNOWN, Operational: voltha.OperStatus_UNKNOWN},
-			currentState:  DeviceState{Admin: voltha.AdminState_UNKNOWN, Connection: voltha.ConnectStatus_UNKNOWN, Operational: voltha.OperStatus_UNKNOWN},
-			handlers:      []TransitionHandler{dMgr.NotifyInvalidTransition}})
-	transitionMap.transitions = append(transitionMap.transitions,
-		Transition{
-			deviceType:    any,
-			previousState: DeviceState{Admin: voltha.AdminState_DISABLED, Connection: voltha.ConnectStatus_UNKNOWN, Operational: voltha.OperStatus_UNKNOWN},
-			currentState:  DeviceState{Admin: voltha.AdminState_PREPROVISIONED, Connection: voltha.ConnectStatus_UNKNOWN, Operational: voltha.OperStatus_UNKNOWN},
-			handlers:      []TransitionHandler{dMgr.NotifyInvalidTransition}})
+			handlers:      []TransitionHandler{dMgr.MarkChildDevicesAsUnReachable}})
 	transitionMap.transitions = append(transitionMap.transitions,
 		Transition{
 			deviceType:    any,
@@ -182,6 +98,66 @@
 	transitionMap.transitions = append(transitionMap.transitions,
 		Transition{
 			deviceType:    any,
+			previousState: DeviceState{Admin: voltha.AdminState_ENABLED, Connection: voltha.ConnectStatus_UNKNOWN, Operational: voltha.OperStatus_ACTIVE},
+			currentState:  DeviceState{Admin: voltha.AdminState_ENABLED, Connection: voltha.ConnectStatus_UNKNOWN, Operational: voltha.OperStatus_ACTIVATING},
+			handlers:      []TransitionHandler{dMgr.NotifyInvalidTransition}})
+	transitionMap.transitions = append(transitionMap.transitions,
+		Transition{
+			deviceType:    any,
+			previousState: DeviceState{Admin: voltha.AdminState_ENABLED, Connection: voltha.ConnectStatus_UNKNOWN, Operational: voltha.OperStatus_ACTIVATING},
+			currentState:  DeviceState{Admin: voltha.AdminState_ENABLED, Connection: voltha.ConnectStatus_UNKNOWN, Operational: voltha.OperStatus_UNKNOWN},
+			handlers:      []TransitionHandler{dMgr.NotifyInvalidTransition}})
+	transitionMap.transitions = append(transitionMap.transitions,
+		Transition{
+			deviceType:    any,
+			previousState: DeviceState{Admin: voltha.AdminState_PREPROVISIONED, Connection: voltha.ConnectStatus_UNKNOWN, Operational: voltha.OperStatus_UNKNOWN},
+			currentState:  DeviceState{Admin: voltha.AdminState_UNKNOWN, Connection: voltha.ConnectStatus_UNKNOWN, Operational: voltha.OperStatus_UNKNOWN},
+			handlers:      []TransitionHandler{dMgr.NotifyInvalidTransition}})
+	transitionMap.transitions = append(transitionMap.transitions,
+		Transition{
+			deviceType:    any,
+			previousState: DeviceState{Admin: voltha.AdminState_ENABLED, Connection: voltha.ConnectStatus_UNKNOWN, Operational: voltha.OperStatus_UNKNOWN},
+			currentState:  DeviceState{Admin: voltha.AdminState_DOWNLOADING_IMAGE, Connection: voltha.ConnectStatus_UNKNOWN, Operational: voltha.OperStatus_UNKNOWN},
+			handlers:      []TransitionHandler{dMgr.NotifyInvalidTransition}})
+	transitionMap.transitions = append(transitionMap.transitions,
+		Transition{
+			deviceType:    any,
+			previousState: DeviceState{Admin: voltha.AdminState_ENABLED, Connection: voltha.ConnectStatus_UNKNOWN, Operational: voltha.OperStatus_UNKNOWN},
+			currentState:  DeviceState{Admin: voltha.AdminState_UNKNOWN, Connection: voltha.ConnectStatus_UNKNOWN, Operational: voltha.OperStatus_UNKNOWN},
+			handlers:      []TransitionHandler{dMgr.NotifyInvalidTransition}})
+	transitionMap.transitions = append(transitionMap.transitions,
+		Transition{
+			deviceType:    parent,
+			previousState: DeviceState{Admin: voltha.AdminState_ENABLED, Connection: voltha.ConnectStatus_UNKNOWN, Operational: voltha.OperStatus_ACTIVE},
+			currentState:  DeviceState{Admin: voltha.AdminState_ENABLED, Connection: voltha.ConnectStatus_UNKNOWN, Operational: voltha.OperStatus_ACTIVATING},
+			handlers:      []TransitionHandler{dMgr.NotifyInvalidTransition}})
+	transitionMap.transitions = append(transitionMap.transitions,
+		Transition{
+			deviceType:    any,
+			previousState: DeviceState{Admin: voltha.AdminState_ENABLED, Connection: voltha.ConnectStatus_UNKNOWN, Operational: voltha.OperStatus_ACTIVATING},
+			currentState:  DeviceState{Admin: voltha.AdminState_ENABLED, Connection: voltha.ConnectStatus_UNKNOWN, Operational: voltha.OperStatus_UNKNOWN},
+			handlers:      []TransitionHandler{dMgr.NotifyInvalidTransition}})
+	transitionMap.transitions = append(transitionMap.transitions,
+		Transition{
+			deviceType:    any,
+			previousState: DeviceState{Admin: voltha.AdminState_ENABLED, Connection: voltha.ConnectStatus_UNKNOWN, Operational: voltha.OperStatus_UNKNOWN},
+			currentState:  DeviceState{Admin: voltha.AdminState_PREPROVISIONED, Connection: voltha.ConnectStatus_UNKNOWN, Operational: voltha.OperStatus_UNKNOWN},
+			handlers:      []TransitionHandler{dMgr.NotifyInvalidTransition}})
+	transitionMap.transitions = append(transitionMap.transitions,
+		Transition{
+			deviceType:    child,
+			previousState: DeviceState{Admin: voltha.AdminState_DISABLED, Connection: voltha.ConnectStatus_UNKNOWN, Operational: voltha.OperStatus_UNKNOWN},
+			currentState:  DeviceState{Admin: voltha.AdminState_UNKNOWN, Connection: voltha.ConnectStatus_UNKNOWN, Operational: voltha.OperStatus_UNKNOWN},
+			handlers:      []TransitionHandler{dMgr.NotifyInvalidTransition}})
+	transitionMap.transitions = append(transitionMap.transitions,
+		Transition{
+			deviceType:    any,
+			previousState: DeviceState{Admin: voltha.AdminState_DISABLED, Connection: voltha.ConnectStatus_UNKNOWN, Operational: voltha.OperStatus_UNKNOWN},
+			currentState:  DeviceState{Admin: voltha.AdminState_PREPROVISIONED, Connection: voltha.ConnectStatus_UNKNOWN, Operational: voltha.OperStatus_UNKNOWN},
+			handlers:      []TransitionHandler{dMgr.NotifyInvalidTransition}})
+	transitionMap.transitions = append(transitionMap.transitions,
+		Transition{
+			deviceType:    any,
 			previousState: DeviceState{Admin: voltha.AdminState_DOWNLOADING_IMAGE, Connection: voltha.ConnectStatus_UNKNOWN, Operational: voltha.OperStatus_UNKNOWN},
 			currentState:  DeviceState{Admin: voltha.AdminState_DISABLED, Connection: voltha.ConnectStatus_UNKNOWN, Operational: voltha.OperStatus_UNKNOWN},
 			handlers:      []TransitionHandler{dMgr.NotifyInvalidTransition}})