diff --git a/rw_core/core/device/state/transitions.go b/rw_core/core/device/state/transitions.go
index 81ac69d..e65c396 100644
--- a/rw_core/core/device/state/transitions.go
+++ b/rw_core/core/device/state/transitions.go
@@ -18,11 +18,10 @@
 
 import (
 	"context"
-	"reflect"
-	"runtime"
-
 	"github.com/opencord/voltha-lib-go/v4/pkg/log"
 	"github.com/opencord/voltha-protos/v4/go/voltha"
+	"reflect"
+	"runtime"
 )
 
 // deviceType mentions type of device like parent, child
@@ -34,7 +33,7 @@
 	any    deviceType = 2
 )
 
-type matchResult uint8
+type matchResult uint16
 
 const (
 	noMatch            matchResult = iota // current state has not match in the transition table
@@ -45,17 +44,18 @@
 
 // match is used to keep the current match states
 type match struct {
-	admin, oper, conn matchResult
+	admin, oper, conn, transient matchResult
 }
 
 // toInt returns an integer representing the matching level of the match (the larger the number the better)
 func (m *match) toInt() int {
-	return int(m.admin<<4 | m.oper<<2 | m.conn)
+	return int(m.transient<<8 | m.admin<<4 | m.oper<<2 | m.conn)
 }
 
 // isExactMatch returns true if match is an exact match
 func (m *match) isExactMatch() bool {
-	return m.admin == currPrevStateMatch && m.oper == currPrevStateMatch && m.conn == currPrevStateMatch
+	return m.admin == currPrevStateMatch && m.oper == currPrevStateMatch && m.conn == currPrevStateMatch &&
+		m.transient == currPrevStateMatch
 }
 
 // isBetterMatch returns true if newMatch is a worse match
@@ -68,6 +68,7 @@
 	Admin       voltha.AdminState_Types
 	Connection  voltha.ConnectStatus_Types
 	Operational voltha.OperStatus_Types
+	Transient   voltha.DeviceTransientState_Types
 }
 
 // transitionHandler function type which takes the current and previous device info as input parameter
@@ -110,161 +111,203 @@
 		transitionMap.transitions,
 		transition{
 			deviceType:    parent,
-			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},
+			previousState: deviceState{Admin: voltha.AdminState_ENABLED, Connection: voltha.ConnectStatus_UNKNOWN, Operational: voltha.OperStatus_ACTIVATING, Transient: voltha.DeviceTransientState_NONE},
+			currentState:  deviceState{Admin: voltha.AdminState_ENABLED, Connection: voltha.ConnectStatus_UNKNOWN, Operational: voltha.OperStatus_ACTIVE, Transient: voltha.DeviceTransientState_NONE},
 			handlers:      []transitionHandler{dMgr.CreateLogicalDevice}})
 	transitionMap.transitions = append(transitionMap.transitions,
 		transition{
 			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_ACTIVATING},
+			previousState: deviceState{Admin: voltha.AdminState_ENABLED, Connection: voltha.ConnectStatus_UNKNOWN, Operational: voltha.OperStatus_DISCOVERED, Transient: voltha.DeviceTransientState_NONE},
+			currentState:  deviceState{Admin: voltha.AdminState_ENABLED, Connection: voltha.ConnectStatus_UNKNOWN, Operational: voltha.OperStatus_ACTIVATING, Transient: voltha.DeviceTransientState_NONE},
 			handlers:      []transitionHandler{}})
 	transitionMap.transitions = append(transitionMap.transitions,
 		transition{
 			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},
+			previousState: deviceState{Admin: voltha.AdminState_ENABLED, Connection: voltha.ConnectStatus_UNKNOWN, Operational: voltha.OperStatus_DISCOVERED, Transient: voltha.DeviceTransientState_NONE},
+			currentState:  deviceState{Admin: voltha.AdminState_ENABLED, Connection: voltha.ConnectStatus_UNKNOWN, Operational: voltha.OperStatus_ACTIVE, Transient: voltha.DeviceTransientState_NONE},
 			handlers:      []transitionHandler{dMgr.SetupUNILogicalPorts}})
 	transitionMap.transitions = append(transitionMap.transitions,
 		transition{
 			deviceType:    child,
-			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_DISCOVERED},
+			previousState: deviceState{Admin: voltha.AdminState_ENABLED, Connection: voltha.ConnectStatus_UNKNOWN, Operational: voltha.OperStatus_ACTIVATING, Transient: voltha.DeviceTransientState_NONE},
+			currentState:  deviceState{Admin: voltha.AdminState_ENABLED, Connection: voltha.ConnectStatus_UNKNOWN, Operational: voltha.OperStatus_DISCOVERED, Transient: voltha.DeviceTransientState_NONE},
 			handlers:      []transitionHandler{}})
 	transitionMap.transitions = append(transitionMap.transitions,
 		transition{
 			deviceType:    child,
-			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},
+			previousState: deviceState{Admin: voltha.AdminState_ENABLED, Connection: voltha.ConnectStatus_UNKNOWN, Operational: voltha.OperStatus_ACTIVATING, Transient: voltha.DeviceTransientState_NONE},
+			currentState:  deviceState{Admin: voltha.AdminState_ENABLED, Connection: voltha.ConnectStatus_UNKNOWN, Operational: voltha.OperStatus_ACTIVE, Transient: voltha.DeviceTransientState_NONE},
 			handlers:      []transitionHandler{dMgr.SetupUNILogicalPorts}})
 	transitionMap.transitions = append(transitionMap.transitions,
-		transition{
+		transition{ //DELETE PRE PROVISIONED State device forcefully
 			deviceType:    any,
-			previousState: deviceState{Admin: voltha.AdminState_PREPROVISIONED, Connection: voltha.ConnectStatus_UNKNOWN, Operational: voltha.OperStatus_UNKNOWN},
-			currentState:  deviceState{Admin: voltha.AdminState_DELETED, Connection: voltha.ConnectStatus_UNKNOWN, Operational: voltha.OperStatus_UNKNOWN},
+			previousState: deviceState{Admin: voltha.AdminState_PREPROVISIONED, Connection: voltha.ConnectStatus_UNKNOWN, Operational: voltha.OperStatus_UNKNOWN, Transient: voltha.DeviceTransientState_ANY},
+			currentState:  deviceState{Admin: voltha.AdminState_PREPROVISIONED, Connection: voltha.ConnectStatus_UNKNOWN, Operational: voltha.OperStatus_UNKNOWN, Transient: voltha.DeviceTransientState_FORCE_DELETING},
 			handlers:      []transitionHandler{dMgr.RunPostDeviceDelete}})
 	transitionMap.transitions = append(transitionMap.transitions,
-		transition{
+		transition{ // DELETE PRE PROVISIONED State device no force option set
+			deviceType:    any,
+			previousState: deviceState{Admin: voltha.AdminState_PREPROVISIONED, Connection: voltha.ConnectStatus_UNKNOWN, Operational: voltha.OperStatus_UNKNOWN, Transient: voltha.DeviceTransientState_ANY},
+			currentState:  deviceState{Admin: voltha.AdminState_PREPROVISIONED, Connection: voltha.ConnectStatus_UNKNOWN, Operational: voltha.OperStatus_UNKNOWN, Transient: voltha.DeviceTransientState_DELETING_POST_ADAPTER_RESPONSE},
+			handlers:      []transitionHandler{dMgr.RunPostDeviceDelete}})
+	transitionMap.transitions = append(transitionMap.transitions,
+		transition{ //DELETE device forcefully
 			deviceType:    parent,
-			previousState: deviceState{Admin: voltha.AdminState_UNKNOWN, Connection: voltha.ConnectStatus_UNKNOWN, Operational: voltha.OperStatus_UNKNOWN},
-			currentState:  deviceState{Admin: voltha.AdminState_DELETED, Connection: voltha.ConnectStatus_UNKNOWN, Operational: voltha.OperStatus_UNKNOWN},
+			previousState: deviceState{Admin: voltha.AdminState_UNKNOWN, Connection: voltha.ConnectStatus_UNKNOWN, Operational: voltha.OperStatus_UNKNOWN, Transient: voltha.DeviceTransientState_ANY},
+			currentState:  deviceState{Admin: voltha.AdminState_UNKNOWN, Connection: voltha.ConnectStatus_UNKNOWN, Operational: voltha.OperStatus_UNKNOWN, Transient: voltha.DeviceTransientState_FORCE_DELETING},
 			handlers:      []transitionHandler{dMgr.DeleteAllLogicalPorts, dMgr.DeleteAllChildDevices, dMgr.DeleteLogicalDevice, dMgr.RunPostDeviceDelete}})
 	transitionMap.transitions = append(transitionMap.transitions,
+		transition{ //DELETE device after adapter response
+			deviceType:    parent,
+			previousState: deviceState{Admin: voltha.AdminState_UNKNOWN, Connection: voltha.ConnectStatus_UNKNOWN, Operational: voltha.OperStatus_UNKNOWN, Transient: voltha.DeviceTransientState_ANY},
+			currentState:  deviceState{Admin: voltha.AdminState_UNKNOWN, Connection: voltha.ConnectStatus_UNKNOWN, Operational: voltha.OperStatus_UNKNOWN, Transient: voltha.DeviceTransientState_DELETING_POST_ADAPTER_RESPONSE},
+			handlers:      []transitionHandler{dMgr.DeleteAllLogicalPorts, dMgr.DeleteAllChildDevices, dMgr.DeleteLogicalDevice, dMgr.RunPostDeviceDelete}})
+	transitionMap.transitions = append(transitionMap.transitions,
+		transition{ //DELETE no operation transition
+			deviceType:    parent,
+			previousState: deviceState{Admin: voltha.AdminState_UNKNOWN, Connection: voltha.ConnectStatus_UNKNOWN, Operational: voltha.OperStatus_UNKNOWN, Transient: voltha.DeviceTransientState_ANY},
+			currentState:  deviceState{Admin: voltha.AdminState_UNKNOWN, Connection: voltha.ConnectStatus_UNKNOWN, Operational: voltha.OperStatus_UNKNOWN, Transient: voltha.DeviceTransientState_DELETING_FROM_ADAPTER},
+			handlers:      []transitionHandler{}})
+	transitionMap.transitions = append(transitionMap.transitions,
 		transition{
 			deviceType:    parent,
-			previousState: deviceState{Admin: voltha.AdminState_ENABLED, Connection: voltha.ConnectStatus_REACHABLE, Operational: voltha.OperStatus_ACTIVE},
-			currentState:  deviceState{Admin: voltha.AdminState_ENABLED, Connection: voltha.ConnectStatus_UNREACHABLE, Operational: voltha.OperStatus_UNKNOWN},
+			previousState: deviceState{Admin: voltha.AdminState_ENABLED, Connection: voltha.ConnectStatus_REACHABLE, Operational: voltha.OperStatus_ACTIVE, Transient: voltha.DeviceTransientState_NONE},
+			currentState:  deviceState{Admin: voltha.AdminState_ENABLED, Connection: voltha.ConnectStatus_UNREACHABLE, Operational: voltha.OperStatus_UNKNOWN, Transient: voltha.DeviceTransientState_NONE},
 			handlers:      []transitionHandler{dMgr.DeleteAllLogicalPorts, dMgr.DeleteAllChildDevices, dMgr.DeleteLogicalDevice, dMgr.DeleteAllDeviceFlows}})
 	transitionMap.transitions = append(transitionMap.transitions,
 		transition{
 			deviceType:    parent,
-			previousState: deviceState{Admin: voltha.AdminState_DISABLED, Connection: voltha.ConnectStatus_REACHABLE, Operational: voltha.OperStatus_UNKNOWN},
-			currentState:  deviceState{Admin: voltha.AdminState_DISABLED, Connection: voltha.ConnectStatus_UNREACHABLE, Operational: voltha.OperStatus_UNKNOWN},
+			previousState: deviceState{Admin: voltha.AdminState_DISABLED, Connection: voltha.ConnectStatus_REACHABLE, Operational: voltha.OperStatus_UNKNOWN, Transient: voltha.DeviceTransientState_NONE},
+			currentState:  deviceState{Admin: voltha.AdminState_DISABLED, Connection: voltha.ConnectStatus_UNREACHABLE, Operational: voltha.OperStatus_UNKNOWN, Transient: voltha.DeviceTransientState_NONE},
 			handlers:      []transitionHandler{dMgr.DeleteAllLogicalPorts, dMgr.DeleteAllChildDevices, dMgr.DeleteLogicalDevice, dMgr.DeleteAllDeviceFlows}})
 	transitionMap.transitions = append(transitionMap.transitions,
 		transition{
 			deviceType:    parent,
-			previousState: deviceState{Admin: voltha.AdminState_ENABLED, Connection: voltha.ConnectStatus_UNREACHABLE, Operational: voltha.OperStatus_UNKNOWN},
-			currentState:  deviceState{Admin: voltha.AdminState_ENABLED, Connection: voltha.ConnectStatus_REACHABLE, Operational: voltha.OperStatus_ACTIVE},
+			previousState: deviceState{Admin: voltha.AdminState_ENABLED, Connection: voltha.ConnectStatus_UNREACHABLE, Operational: voltha.OperStatus_UNKNOWN, Transient: voltha.DeviceTransientState_NONE},
+			currentState:  deviceState{Admin: voltha.AdminState_ENABLED, Connection: voltha.ConnectStatus_REACHABLE, Operational: voltha.OperStatus_ACTIVE, Transient: voltha.DeviceTransientState_NONE},
 			handlers:      []transitionHandler{dMgr.CreateLogicalDevice}})
 	transitionMap.transitions = append(transitionMap.transitions,
 		transition{
 			deviceType:    parent,
-			previousState: deviceState{Admin: voltha.AdminState_DISABLED, Connection: voltha.ConnectStatus_UNREACHABLE, Operational: voltha.OperStatus_UNKNOWN},
-			currentState:  deviceState{Admin: voltha.AdminState_DISABLED, Connection: voltha.ConnectStatus_REACHABLE, Operational: voltha.OperStatus_UNKNOWN},
+			previousState: deviceState{Admin: voltha.AdminState_DISABLED, Connection: voltha.ConnectStatus_UNREACHABLE, Operational: voltha.OperStatus_UNKNOWN, Transient: voltha.DeviceTransientState_NONE},
+			currentState:  deviceState{Admin: voltha.AdminState_DISABLED, Connection: voltha.ConnectStatus_REACHABLE, Operational: voltha.OperStatus_UNKNOWN, Transient: voltha.DeviceTransientState_NONE},
 			handlers:      []transitionHandler{dMgr.CreateLogicalDevice}})
 	transitionMap.transitions = append(transitionMap.transitions,
-		transition{
+		transition{ //DELETE force case
 			deviceType:    child,
-			previousState: deviceState{Admin: voltha.AdminState_UNKNOWN, Connection: voltha.ConnectStatus_UNKNOWN, Operational: voltha.OperStatus_UNKNOWN},
-			currentState:  deviceState{Admin: voltha.AdminState_DELETED, Connection: voltha.ConnectStatus_UNKNOWN, Operational: voltha.OperStatus_UNKNOWN},
+			previousState: deviceState{Admin: voltha.AdminState_UNKNOWN, Connection: voltha.ConnectStatus_UNKNOWN, Operational: voltha.OperStatus_UNKNOWN, Transient: voltha.DeviceTransientState_ANY},
+			currentState:  deviceState{Admin: voltha.AdminState_UNKNOWN, Connection: voltha.ConnectStatus_UNKNOWN, Operational: voltha.OperStatus_UNKNOWN, Transient: voltha.DeviceTransientState_FORCE_DELETING},
 			handlers:      []transitionHandler{dMgr.ChildDeviceLost, dMgr.DeleteLogicalPorts, dMgr.RunPostDeviceDelete}})
 	transitionMap.transitions = append(transitionMap.transitions,
-		transition{
+		transition{ //DELETE after adapter response case
 			deviceType:    child,
-			previousState: deviceState{Admin: voltha.AdminState_ENABLED, Connection: voltha.ConnectStatus_UNKNOWN, Operational: voltha.OperStatus_UNKNOWN},
-			currentState:  deviceState{Admin: voltha.AdminState_DELETED, Connection: voltha.ConnectStatus_UNKNOWN, Operational: voltha.OperStatus_UNKNOWN},
+			previousState: deviceState{Admin: voltha.AdminState_UNKNOWN, Connection: voltha.ConnectStatus_UNKNOWN, Operational: voltha.OperStatus_UNKNOWN, Transient: voltha.DeviceTransientState_ANY},
+			currentState:  deviceState{Admin: voltha.AdminState_UNKNOWN, Connection: voltha.ConnectStatus_UNKNOWN, Operational: voltha.OperStatus_UNKNOWN, Transient: voltha.DeviceTransientState_DELETING_POST_ADAPTER_RESPONSE},
 			handlers:      []transitionHandler{dMgr.ChildDeviceLost, dMgr.DeleteLogicalPorts, dMgr.RunPostDeviceDelete}})
 	transitionMap.transitions = append(transitionMap.transitions,
+		transition{ //DELETE wait for adapter response(no operation)
+			deviceType:    child,
+			previousState: deviceState{Admin: voltha.AdminState_UNKNOWN, Connection: voltha.ConnectStatus_UNKNOWN, Operational: voltha.OperStatus_UNKNOWN, Transient: voltha.DeviceTransientState_ANY},
+			currentState:  deviceState{Admin: voltha.AdminState_UNKNOWN, Connection: voltha.ConnectStatus_UNKNOWN, Operational: voltha.OperStatus_UNKNOWN, Transient: voltha.DeviceTransientState_DELETING_FROM_ADAPTER},
+			handlers:      []transitionHandler{}})
+	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},
+			previousState: deviceState{Admin: voltha.AdminState_ENABLED, Connection: voltha.ConnectStatus_UNKNOWN, Operational: voltha.OperStatus_ACTIVE, Transient: voltha.DeviceTransientState_NONE},
+			currentState:  deviceState{Admin: voltha.AdminState_ENABLED, Connection: voltha.ConnectStatus_UNKNOWN, Operational: voltha.OperStatus_ACTIVATING, Transient: voltha.DeviceTransientState_NONE},
 			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},
+			previousState: deviceState{Admin: voltha.AdminState_ENABLED, Connection: voltha.ConnectStatus_UNKNOWN, Operational: voltha.OperStatus_ACTIVATING, Transient: voltha.DeviceTransientState_NONE},
+			currentState:  deviceState{Admin: voltha.AdminState_ENABLED, Connection: voltha.ConnectStatus_UNKNOWN, Operational: voltha.OperStatus_UNKNOWN, Transient: voltha.DeviceTransientState_NONE},
 			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},
+			previousState: deviceState{Admin: voltha.AdminState_PREPROVISIONED, Connection: voltha.ConnectStatus_UNKNOWN, Operational: voltha.OperStatus_UNKNOWN, Transient: voltha.DeviceTransientState_NONE},
+			currentState:  deviceState{Admin: voltha.AdminState_UNKNOWN, Connection: voltha.ConnectStatus_UNKNOWN, Operational: voltha.OperStatus_UNKNOWN, Transient: voltha.DeviceTransientState_NONE},
 			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},
+			previousState: deviceState{Admin: voltha.AdminState_ENABLED, Connection: voltha.ConnectStatus_UNKNOWN, Operational: voltha.OperStatus_UNKNOWN, Transient: voltha.DeviceTransientState_NONE},
+			currentState:  deviceState{Admin: voltha.AdminState_DOWNLOADING_IMAGE, Connection: voltha.ConnectStatus_UNKNOWN, Operational: voltha.OperStatus_UNKNOWN, Transient: voltha.DeviceTransientState_NONE},
 			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},
+			previousState: deviceState{Admin: voltha.AdminState_ENABLED, Connection: voltha.ConnectStatus_UNKNOWN, Operational: voltha.OperStatus_UNKNOWN, Transient: voltha.DeviceTransientState_NONE},
+			currentState:  deviceState{Admin: voltha.AdminState_UNKNOWN, Connection: voltha.ConnectStatus_UNKNOWN, Operational: voltha.OperStatus_UNKNOWN, Transient: voltha.DeviceTransientState_NONE},
 			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},
+			previousState: deviceState{Admin: voltha.AdminState_ENABLED, Connection: voltha.ConnectStatus_UNKNOWN, Operational: voltha.OperStatus_ACTIVE, Transient: voltha.DeviceTransientState_NONE},
+			currentState:  deviceState{Admin: voltha.AdminState_ENABLED, Connection: voltha.ConnectStatus_UNKNOWN, Operational: voltha.OperStatus_ACTIVATING, Transient: voltha.DeviceTransientState_NONE},
 			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},
+			previousState: deviceState{Admin: voltha.AdminState_ENABLED, Connection: voltha.ConnectStatus_UNKNOWN, Operational: voltha.OperStatus_ACTIVATING, Transient: voltha.DeviceTransientState_NONE},
+			currentState:  deviceState{Admin: voltha.AdminState_ENABLED, Connection: voltha.ConnectStatus_UNKNOWN, Operational: voltha.OperStatus_UNKNOWN, Transient: voltha.DeviceTransientState_NONE},
 			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},
+			previousState: deviceState{Admin: voltha.AdminState_ENABLED, Connection: voltha.ConnectStatus_UNKNOWN, Operational: voltha.OperStatus_UNKNOWN, Transient: voltha.DeviceTransientState_NONE},
+			currentState:  deviceState{Admin: voltha.AdminState_PREPROVISIONED, Connection: voltha.ConnectStatus_UNKNOWN, Operational: voltha.OperStatus_UNKNOWN, Transient: voltha.DeviceTransientState_NONE},
 			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},
+			previousState: deviceState{Admin: voltha.AdminState_DISABLED, Connection: voltha.ConnectStatus_UNKNOWN, Operational: voltha.OperStatus_UNKNOWN, Transient: voltha.DeviceTransientState_NONE},
+			currentState:  deviceState{Admin: voltha.AdminState_UNKNOWN, Connection: voltha.ConnectStatus_UNKNOWN, Operational: voltha.OperStatus_UNKNOWN, Transient: voltha.DeviceTransientState_NONE},
 			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},
+			previousState: deviceState{Admin: voltha.AdminState_DISABLED, Connection: voltha.ConnectStatus_UNKNOWN, Operational: voltha.OperStatus_UNKNOWN, Transient: voltha.DeviceTransientState_NONE},
+			currentState:  deviceState{Admin: voltha.AdminState_PREPROVISIONED, Connection: voltha.ConnectStatus_UNKNOWN, Operational: voltha.OperStatus_UNKNOWN, Transient: voltha.DeviceTransientState_NONE},
 			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},
+			previousState: deviceState{Admin: voltha.AdminState_DOWNLOADING_IMAGE, Connection: voltha.ConnectStatus_UNKNOWN, Operational: voltha.OperStatus_UNKNOWN, Transient: voltha.DeviceTransientState_NONE},
+			currentState:  deviceState{Admin: voltha.AdminState_DISABLED, Connection: voltha.ConnectStatus_UNKNOWN, Operational: voltha.OperStatus_UNKNOWN, Transient: voltha.DeviceTransientState_NONE},
 			handlers:      []transitionHandler{dMgr.NotifyInvalidTransition}})
 
 	return &transitionMap
 }
 
-func getDeviceStates(device *voltha.Device) deviceState {
-	return deviceState{Admin: device.AdminState, Connection: device.ConnectStatus, Operational: device.OperStatus}
+func getDeviceStates(device *voltha.Device, transientState voltha.DeviceTransientState_Types) deviceState {
+	return deviceState{Admin: device.AdminState, Connection: device.ConnectStatus, Operational: device.OperStatus,
+		Transient: transientState}
 }
 
 // isMatched matches a state transition.  It returns whether there is a match and if there is whether it is an exact match
 func getHandler(previous deviceState, current deviceState, transition *transition) ([]transitionHandler, *match) {
 	m := &match{}
+	var waitForOtherStatesMatch bool
 	// Do we have an exact match?
 	if previous == transition.previousState && current == transition.currentState {
-		return transition.handlers, &match{admin: currPrevStateMatch, oper: currPrevStateMatch, conn: currPrevStateMatch}
+		return transition.handlers, &match{admin: currPrevStateMatch, oper: currPrevStateMatch, conn: currPrevStateMatch,
+			transient: currPrevStateMatch}
+	}
+	// Do we have transient state match?
+	if current.Transient == transition.currentState.Transient && transition.currentState.Transient != voltha.DeviceTransientState_ANY {
+		if previous.Transient == transition.previousState.Transient || transition.previousState.Transient == voltha.DeviceTransientState_ANY {
+			m.transient = currPrevStateMatch
+		} else {
+			m.transient = currStateOnlyMatch
+		}
+	} else if current.Transient == transition.currentState.Transient && transition.currentState.Transient == voltha.DeviceTransientState_ANY {
+		if previous.Transient == transition.previousState.Transient || transition.previousState.Transient == voltha.DeviceTransientState_ANY {
+			m.transient = currWildcardMatch
+		}
+	}
+	if m.transient == noMatch {
+		return nil, m
 	}
 
 	// Do we have Admin state match?
@@ -278,12 +321,14 @@
 		if previous.Admin == transition.previousState.Admin || transition.previousState.Admin == voltha.AdminState_UNKNOWN {
 			m.admin = currWildcardMatch
 		}
+	} else if transition.previousState.Admin == voltha.AdminState_UNKNOWN && transition.currentState.Admin == voltha.AdminState_UNKNOWN {
+		// Will only be the case of DELETION currently.(to allow only transient match, we can avoid this check if
+		// we can allow wild card in admin state)
+		waitForOtherStatesMatch = true
 	}
-	if m.admin == noMatch {
-		// invalid transition - need to match on current admin state
+	if !waitForOtherStatesMatch && m.admin == noMatch {
 		return nil, m
 	}
-
 	// Do we have an operational state match?
 	if current.Operational == transition.currentState.Operational && transition.previousState.Operational != voltha.OperStatus_UNKNOWN {
 		if previous.Operational == transition.previousState.Operational || transition.previousState.Operational == voltha.OperStatus_UNKNOWN {
@@ -309,15 +354,15 @@
 			m.conn = currWildcardMatch
 		}
 	}
-
 	return transition.handlers, m
 }
 
 // getTransitionHandler returns transition handler & a flag that's set if the transition is invalid
-func (tMap *TransitionMap) getTransitionHandler(ctx context.Context, cDevice, pDevice *voltha.Device) []transitionHandler {
+func (tMap *TransitionMap) getTransitionHandler(ctx context.Context, cDevice, pDevice *voltha.Device,
+	cTransientState, pTransientState voltha.DeviceTransientState_Types) []transitionHandler {
 	//1. Get the previous and current set of states
-	cState := getDeviceStates(cDevice)
-	pState := getDeviceStates(pDevice)
+	cState := getDeviceStates(cDevice, cTransientState)
+	pState := getDeviceStates(pDevice, pTransientState)
 
 	// Do nothing is there are no states change
 	if pState == cState {
@@ -355,23 +400,27 @@
 	return currentMatch
 }
 
-func (tMap *TransitionMap) ProcessTransition(ctx context.Context, device, prevDevice *voltha.Device) error {
+func (tMap *TransitionMap) ProcessTransition(ctx context.Context, device, prevDevice *voltha.Device,
+	deviceTransientState, prevDeviceTransientState voltha.DeviceTransientState_Types) error {
 	// This will be triggered on every state update
 	logger.Debugw(ctx, "state-transition", log.Fields{
-		"device":           device.Id,
-		"prev-admin-state": prevDevice.AdminState,
-		"prev-oper-state":  prevDevice.OperStatus,
-		"prev-conn-state":  prevDevice.ConnectStatus,
-		"curr-admin-state": device.AdminState,
-		"curr-oper-state":  device.OperStatus,
-		"curr-conn-state":  device.ConnectStatus,
+		"device":               device.Id,
+		"prev-admin-state":     prevDevice.AdminState,
+		"prev-oper-state":      prevDevice.OperStatus,
+		"prev-conn-state":      prevDevice.ConnectStatus,
+		"curr-admin-state":     device.AdminState,
+		"curr-oper-state":      device.OperStatus,
+		"curr-conn-state":      device.ConnectStatus,
+		"curr-transient-state": deviceTransientState,
+		"prev-transient-state": prevDeviceTransientState,
 	})
-	handlers := tMap.getTransitionHandler(ctx, device, prevDevice)
+	handlers := tMap.getTransitionHandler(ctx, device, prevDevice, deviceTransientState, prevDeviceTransientState)
 	if handlers == nil {
 		logger.Debugw(ctx, "no-op-transition", log.Fields{"deviceId": device.Id})
 		return nil
 	}
-	logger.Debugw(ctx, "handler-found", log.Fields{"num-expectedHandlers": len(handlers), "isParent": device.Root, "current-data": device, "previous-data": prevDevice})
+	logger.Debugw(ctx, "handler-found", log.Fields{"num-expectedHandlers": len(handlers), "isParent": device.Root,
+		"current-data": device, "previous-data": prevDevice})
 	for _, handler := range handlers {
 		logger.Debugw(ctx, "running-handler", log.Fields{"handler": funcName(handler)})
 		if err := handler(ctx, device); err != nil {