diff --git a/VERSION b/VERSION
index ccbccc3..c043eea 100755
--- a/VERSION
+++ b/VERSION
@@ -1 +1 @@
-2.2.0
+2.2.1
diff --git a/go.mod b/go.mod
index a6368cd..0cf210d 100644
--- a/go.mod
+++ b/go.mod
@@ -17,7 +17,7 @@
 	github.com/looplab/fsm v0.2.0
 	github.com/opencord/omci-lib-go/v2 v2.2.0
 	github.com/opencord/voltha-lib-go/v7 v7.1.3
-	github.com/opencord/voltha-protos/v5 v5.1.2
+	github.com/opencord/voltha-protos/v5 v5.2.0
 	github.com/stretchr/testify v1.7.0
 	google.golang.org/grpc v1.42.0
 )
diff --git a/go.sum b/go.sum
index b76d4a7..065b8ad 100644
--- a/go.sum
+++ b/go.sum
@@ -194,8 +194,9 @@
 github.com/opencord/omci-lib-go/v2 v2.2.0/go.mod h1:o1S/jhDLHNikFU7uG2TR5UOM5KmKlqwLlVncXi0FBYQ=
 github.com/opencord/voltha-lib-go/v7 v7.1.3 h1:K6bnHg9N/Eg+P+qLqtuZ4GhOOVxZJ14qj9RZYujjEBw=
 github.com/opencord/voltha-lib-go/v7 v7.1.3/go.mod h1:tdAFZ7N/rRg3ScnVM/15KkUZN60kTYPGU+uiRMpjTfY=
-github.com/opencord/voltha-protos/v5 v5.1.2 h1:biyhoK+5JBcpT3HvUBb1xzN5cAKA0xXU/hLbtzuR9xI=
 github.com/opencord/voltha-protos/v5 v5.1.2/go.mod h1:dvz08S+JLdfjhFtd3Rf38DLeD9jQ6JO1+0K3NTdheRo=
+github.com/opencord/voltha-protos/v5 v5.2.0 h1:+tvRpS0V7Jn+ToDKKhKlbqwpTGefO3NdV8lygSNb6zY=
+github.com/opencord/voltha-protos/v5 v5.2.0/go.mod h1:dvz08S+JLdfjhFtd3Rf38DLeD9jQ6JO1+0K3NTdheRo=
 github.com/opentracing/opentracing-go v1.1.0/go.mod h1:UkNAQd3GIcIGf0SeVgPpRdFStlNbqXla1AfSYxPUl2o=
 github.com/opentracing/opentracing-go v1.2.0 h1:uEJPy/1a5RIPAJ0Ov+OIO8OxWu77jEv+1B0VhjKrZUs=
 github.com/opentracing/opentracing-go v1.2.0/go.mod h1:GxEUsuufX4nBwe+T+Wl9TAgYrxe9dPLANfrWvHYVTgc=
diff --git a/internal/pkg/common/interfaces.go b/internal/pkg/common/interfaces.go
index 39b37ba..4c4878a 100755
--- a/internal/pkg/common/interfaces.go
+++ b/internal/pkg/common/interfaces.go
@@ -117,6 +117,8 @@
 	GetDeletionInProgress() bool
 
 	SendOMCIRequest(context.Context, string, *ia.OmciMessage) error
+	SendOnuSwSectionsOfWindow(context.Context, string, *ia.OmciMessages) error
+
 	CreatePortInCore(context.Context, *voltha.Port) error
 
 	PerOnuFlowHandlerRoutine(uniID uint8)
diff --git a/internal/pkg/common/omci_cc.go b/internal/pkg/common/omci_cc.go
index 45c536d..a3df18a 100755
--- a/internal/pkg/common/omci_cc.go
+++ b/internal/pkg/common/omci_cc.go
@@ -94,6 +94,7 @@
 	withFramePrint bool
 	cbPair         CallbackPair
 	chSuccess      chan bool
+	OnuSwWindow    *ia.OmciMessages
 }
 
 //OmciCC structure holds information needed for OMCI communication (to/from OLT Adapter)
@@ -531,6 +532,7 @@
 		printFrame,
 		receiveCallbackPair,
 		nil,
+		nil,
 	}
 	oo.mutexMonReq.Lock()
 	defer oo.mutexMonReq.Unlock()
@@ -581,9 +583,19 @@
 	oo.mutexLowPrioTxQueue.Lock()
 	for oo.lowPrioTxQueue.Len() > 0 {
 		queueElement := oo.lowPrioTxQueue.Front() // First element
-		if err := oo.sendOMCIRequest(ctx, queueElement.Value.(OmciTransferStructure)); err != nil {
-			oo.mutexLowPrioTxQueue.Unlock()
-			return err
+		// check if the element is for onu sw section
+		aOmciTxReq := queueElement.Value.(OmciTransferStructure)
+		if aOmciTxReq.OnuSwWindow != nil {
+			if err := oo.sendOnuSwSectionsOfWindow(ctx, aOmciTxReq); err != nil {
+				oo.mutexLowPrioTxQueue.Unlock()
+				return err
+			}
+		} else {
+			err := oo.sendOMCIRequest(ctx, queueElement.Value.(OmciTransferStructure))
+			if err != nil {
+				oo.mutexLowPrioTxQueue.Unlock()
+				return err
+			}
 		}
 		oo.lowPrioTxQueue.Remove(queueElement) // Dequeue
 		// Interrupt the sending of low priority requests to process any high priority requests
@@ -646,6 +658,36 @@
 	return next
 }
 
+//GetOnuSwSecNextTid get the next low prio tid for the onu sw sections
+//onu sw sections uses only low priority tids
+//The mutexTid lock should be taken prior to using this function
+func (oo *OmciCC) GetOnuSwSecNextTid() uint16 {
+	next := oo.tid
+	oo.tid++
+	if oo.tid >= 0x8000 {
+		oo.tid = 1
+	}
+	return next
+}
+
+//GetOnuSwSecLastTid gets the last allocated tid
+//The mutexTid lock should be taken prior to using this function
+func (oo *OmciCC) GetOnuSwSecLastTid() uint16 {
+	next := oo.tid
+	lastAllocatedTid := next - 1
+	return lastAllocatedTid
+}
+
+//LockMutexTID locks mutexTid
+func (oo *OmciCC) LockMutexTID() {
+	oo.mutexTid.Lock()
+}
+
+//UnLockMutexTID unlocks mutexTid
+func (oo *OmciCC) UnLockMutexTID() {
+	oo.mutexTid.Unlock()
+}
+
 // ###################################################################################
 // # utility methods provided to work on OMCI messages
 
@@ -4132,6 +4174,161 @@
 	return nil
 }
 
+// PrepareOnuSectionsOfWindow prepares a list of sections for each window
+//Before invoking this function the oo.mutexTid  needs to be be locked so that
+//GetOnuSwSecNextTid can be invoked without further locking
+func (oo *OmciCC) PrepareOnuSectionsOfWindow(ctx context.Context,
+	aImageMeID uint16, aAckRequest uint8, aDownloadSectionNo uint8, aSection []byte,
+	omciMsgsPerWindow *ia.OmciMessages) (OmciTransferStructure, error) {
+	//onuswsections uses only low prioirity tids
+	tid := oo.GetOnuSwSecNextTid()
+	logger.Infow(ctx, "send DlSectionRequest:", log.Fields{"device-id": oo.deviceID,
+		"SequNo": strconv.FormatInt(int64(tid), 16),
+		"InstId": strconv.FormatInt(int64(aImageMeID), 16), "omci-ack": aAckRequest, "sectionNo": aDownloadSectionNo, "sectionData": aSection})
+
+	var omciTxReq OmciTransferStructure
+	msgType := omci.DownloadSectionRequestType
+
+	if aAckRequest > 0 {
+		msgType = omci.DownloadSectionRequestWithResponseType
+
+	}
+	omciLayer := &omci.OMCI{
+		TransactionID: tid,
+		MessageType:   msgType,
+		// DeviceIdentifier: omci.BaselineIdent,		// Optional, defaults to Baseline
+		// Length:           0x28,						// Optional, defaults to 40 octets
+	}
+	localSectionData := make([]byte, len(aSection))
+
+	copy(localSectionData[:], aSection) // as long as DownloadSectionRequest defines array for SectionData we need to copy into the array
+	request := &omci.DownloadSectionRequest{
+		MeBasePacket: omci.MeBasePacket{
+			EntityClass:    me.SoftwareImageClassID,
+			EntityInstance: aImageMeID, //inactive image
+		},
+		SectionNumber: aDownloadSectionNo,
+		SectionData:   localSectionData,
+	}
+
+	var options gopacket.SerializeOptions
+	options.FixLengths = true
+	buffer := gopacket.NewSerializeBuffer()
+	err := gopacket.SerializeLayers(buffer, options, omciLayer, request)
+	if err != nil {
+		logger.Errorw(ctx, "Cannot serialize DlSectionRequest", log.Fields{"Err": err,
+			"device-id": oo.deviceID})
+		return omciTxReq, err
+	}
+	outgoingPacket := buffer.Bytes()
+
+	omciMsgsPerWindow.Messages = append(omciMsgsPerWindow.Messages, outgoingPacket)
+
+	if aAckRequest > 0 {
+		// only the last section should have a timeout as an ack is required only for the last section of the window
+		omciTxReq = OmciTransferStructure{
+			withFramePrint: true,
+			OnuSwWindow:    omciMsgsPerWindow,
+		}
+		return omciTxReq, nil
+	}
+
+	return omciTxReq, nil
+}
+
+//SendOnuSwSectionsWindowWithRxSupervision sends onu swd sections
+func (oo *OmciCC) SendOnuSwSectionsWindowWithRxSupervision(ctx context.Context,
+	aOmciTxRequest OmciTransferStructure, aTimeout int, rxChan chan Message) {
+	if aOmciTxRequest.OnuSwWindow == nil {
+		logger.Errorw(ctx, "SendOnuSwSectionsWindowWithRxSupervision: omciTxRequest.OnuSwWindow is nil",
+			log.Fields{"device-id": oo.deviceID})
+		return
+
+	}
+
+	tid := oo.GetOnuSwSecLastTid()
+	logger.Debugw(ctx, "SendOnuSwSectionsWindowWithRxSupervision tid for the last segment is ", log.Fields{"TID": tid})
+	omciRxCallbackPair := CallbackPair{CbKey: tid,
+		CbEntry: CallbackPairEntry{rxChan, oo.receiveOmciResponse, true},
+	}
+
+	aOmciTxRequest.cbPair = omciRxCallbackPair
+	logger.Debugw(ctx, "register-response-callback:", log.Fields{"for TansCorrId": aOmciTxRequest.cbPair.CbKey})
+	oo.mutexRxSchedMap.Lock()
+	// it could be checked, if the callback key is already registered - but simply overwrite may be acceptable ...
+	oo.rxSchedulerMap[aOmciTxRequest.cbPair.CbKey] = aOmciTxRequest.cbPair.CbEntry
+	oo.mutexRxSchedMap.Unlock()
+
+	chSuccess := make(chan bool)
+	aOmciTxRequest.chSuccess = chSuccess
+	aOmciTxRequest.timeout = aTimeout
+	aOmciTxRequest.retries = CDefaultRetries
+
+	//tid := aOmciTxRequest.cbPair.CbKey
+	oo.mutexMonReq.Lock()
+	oo.monitoredRequests[tid] = aOmciTxRequest
+	oo.mutexMonReq.Unlock()
+
+	retries := aOmciTxRequest.retries
+	retryCounter := 0
+	if aTimeout == 0 {
+		logger.Errorw(ctx, "no timeout present for last section of window", log.Fields{"device-id": oo.deviceID})
+		return
+	}
+loop:
+	for retryCounter <= retries {
+		// the onu sw sections are enqueued only to the low priority queue
+		oo.mutexLowPrioTxQueue.Lock()
+		oo.lowPrioTxQueue.PushBack(aOmciTxRequest)
+		oo.mutexLowPrioTxQueue.Unlock()
+
+		go oo.sendQueuedRequests(ctx)
+
+		select {
+		case success := <-chSuccess:
+			if success {
+				logger.Debugw(ctx, "reqMon: response received in time",
+					log.Fields{"tid": tid, "device-id": oo.deviceID})
+			} else {
+				logger.Debugw(ctx, "reqMon: wait for response aborted",
+					log.Fields{"tid": tid, "device-id": oo.deviceID})
+			}
+			break loop
+		case <-time.After(time.Duration(aTimeout) * time.Second):
+			if retryCounter == retries {
+				logger.Errorw(ctx, "reqMon: timeout waiting for response - no of max retries reached!",
+					log.Fields{"tid": tid, "retries": retryCounter, "device-id": oo.deviceID})
+				break loop
+			} else {
+				logger.Infow(ctx, "reqMon: timeout waiting for response - retry",
+					log.Fields{"tid": tid, "retries": retryCounter, "device-id": oo.deviceID})
+			}
+		}
+		retryCounter++
+	}
+	oo.mutexMonReq.Lock()
+	delete(oo.monitoredRequests, tid)
+	oo.mutexMonReq.Unlock()
+}
+
+func (oo *OmciCC) sendOnuSwSectionsOfWindow(ctx context.Context, omciTxRequest OmciTransferStructure) error {
+	if omciTxRequest.withFramePrint && omciTxRequest.OnuSwWindow != nil {
+		lastSection := omciTxRequest.OnuSwWindow.Messages[len(omciTxRequest.OnuSwWindow.Messages)-1]
+		logger.Debugw(ctx, "omci-message-to-send:", log.Fields{
+			"TxOmciMessage": hex.EncodeToString(lastSection),
+			"device-id":     oo.deviceID,
+			"toDeviceType":  oo.pBaseDeviceHandler.GetProxyAddressType(),
+			"proxyDeviceID": oo.pBaseDeviceHandler.GetProxyAddressID(),
+			"proxyAddress":  oo.pBaseDeviceHandler.GetProxyAddress()})
+	}
+	sendErr := oo.pBaseDeviceHandler.SendOnuSwSectionsOfWindow(ctx, oo.pBaseDeviceHandler.GetProxyAddress().AdapterEndpoint, omciTxRequest.OnuSwWindow)
+	if sendErr != nil {
+		logger.Errorw(ctx, "send onu sw sections omci request error", log.Fields{"ChildId": oo.deviceID, "error": sendErr})
+		return sendErr
+	}
+	return nil
+}
+
 // SendDownloadSection sends DownloadSectionRequestWithResponse
 func (oo *OmciCC) SendDownloadSection(ctx context.Context, aTimeout int, highPrio bool,
 	rxChan chan Message, aImageMeID uint16, aAckRequest uint8, aDownloadSectionNo uint8, aSection []byte, aPrint bool) error {
diff --git a/internal/pkg/core/device_handler.go b/internal/pkg/core/device_handler.go
index 332861b..920802a 100755
--- a/internal/pkg/core/device_handler.go
+++ b/internal/pkg/core/device_handler.go
@@ -44,6 +44,7 @@
 	pmmgr "github.com/opencord/voltha-openonu-adapter-go/internal/pkg/pmmgr"
 	"github.com/opencord/voltha-openonu-adapter-go/internal/pkg/swupg"
 	uniprt "github.com/opencord/voltha-openonu-adapter-go/internal/pkg/uniprt"
+	"github.com/opencord/voltha-protos/v5/go/common"
 	vc "github.com/opencord/voltha-protos/v5/go/common"
 	ca "github.com/opencord/voltha-protos/v5/go/core_adapter"
 	"github.com/opencord/voltha-protos/v5/go/extension"
@@ -4338,6 +4339,26 @@
 	}
 }
 
+func (dh *deviceHandler) SendOnuSwSectionsOfWindow(ctx context.Context, parentEndpoint string, request *ia.OmciMessages) error {
+	request.ParentDeviceId = dh.GetProxyAddressID()
+	request.ChildDeviceId = dh.DeviceID
+	request.ProxyAddress = dh.GetProxyAddress()
+	request.ConnectStatus = common.ConnectStatus_REACHABLE
+
+	pgClient, err := dh.pOpenOnuAc.getParentAdapterServiceClient(parentEndpoint)
+	if err != nil || pgClient == nil {
+		return err
+	}
+	subCtx, cancel := context.WithTimeout(log.WithSpanFromContext(context.Background(), ctx), dh.config.MaxTimeoutInterAdapterComm)
+	defer cancel()
+	logger.Debugw(subCtx, "send-omci-request", log.Fields{"request": request, "parent-endpoint": parentEndpoint})
+	_, err = pgClient.ProxyOmciRequests(subCtx, request)
+	if err != nil {
+		logger.Errorw(ctx, "omci-failure", log.Fields{"request": request, "error": err, "request-parent": request.ParentDeviceId, "request-child": request.ChildDeviceId, "request-proxy": request.ProxyAddress})
+	}
+	return err
+}
+
 func (dh *deviceHandler) SendOMCIRequest(ctx context.Context, parentEndpoint string, request *ia.OmciMessage) error {
 	pgClient, err := dh.pOpenOnuAc.getParentAdapterServiceClient(parentEndpoint)
 	if err != nil || pgClient == nil {
diff --git a/internal/pkg/swupg/omci_onu_upgrade.go b/internal/pkg/swupg/omci_onu_upgrade.go
index 7809ef8..369890a 100755
--- a/internal/pkg/swupg/omci_onu_upgrade.go
+++ b/internal/pkg/swupg/omci_onu_upgrade.go
@@ -32,6 +32,7 @@
 	"github.com/opencord/voltha-lib-go/v7/pkg/log"
 	cmn "github.com/opencord/voltha-openonu-adapter-go/internal/pkg/common"
 	"github.com/opencord/voltha-openonu-adapter-go/internal/pkg/devdb"
+	ia "github.com/opencord/voltha-protos/v5/go/inter_adapter"
 	"github.com/opencord/voltha-protos/v5/go/voltha"
 )
 
@@ -723,14 +724,18 @@
 	var bufferStartOffset uint32
 	var bufferEndOffset uint32
 	var downloadSection []byte
-	framePrint := false //default no printing of downloadSection frames
+
 	oFsm.mutexUpgradeParams.Lock()
 	oFsm.upgradePhase = cUpgradeDownloading //start of downloading image to ONU
 	if oFsm.nextDownloadSectionsAbsolute == 0 {
-		//debug print of first section frame
-		framePrint = true
 		oFsm.volthaImageState = voltha.ImageState_IMAGE_DOWNLOADING
 	}
+	//var omuTxSecPerWindow []*common.OmciTransferStructure
+	omciMsgsPerSection := &ia.OmciMessages{}
+	//take the TID mutex
+	//To ensure the insequesnce of TIDS for all the onusw sections within a window
+	oFsm.pOmciCC.LockMutexTID()
+	defer oFsm.pOmciCC.UnLockMutexTID()
 	for {
 		oFsm.mutexAbortRequest.RLock()
 		// this way out of the section download loop on abort request
@@ -780,33 +785,43 @@
 		}
 		if oFsm.nextDownloadSectionsAbsolute+1 >= oFsm.noOfSections {
 			windowAckRequest = 1
-			framePrint = true //debug print of last frame
+
 			oFsm.omciDownloadWindowSizeLast = oFsm.nextDownloadSectionsWindow
 			logger.Infow(ctx, "DlSection expect Response for last window (section)", log.Fields{
 				"device-id": oFsm.deviceID, "DlSectionNoAbsolute": oFsm.nextDownloadSectionsAbsolute})
 		}
 		oFsm.mutexUpgradeParams.Unlock() //unlock here to give other functions some chance to process during/after the send request
-		err := oFsm.pOmciCC.SendDownloadSection(log.WithSpanFromContext(context.Background(), ctx), oFsm.pDeviceHandler.GetOmciTimeout(), false,
-			oFsm.PAdaptFsm.CommChan, oFsm.InactiveImageMeID, windowAckRequest, oFsm.nextDownloadSectionsWindow, downloadSection, framePrint)
+		omciTxReq, err := oFsm.pOmciCC.PrepareOnuSectionsOfWindow(log.WithSpanFromContext(context.Background(), ctx),
+			oFsm.InactiveImageMeID, windowAckRequest, oFsm.nextDownloadSectionsWindow, downloadSection, omciMsgsPerSection)
 		if err != nil {
 			logger.Errorw(ctx, "DlSection abort: can't send section", log.Fields{
 				"device-id": oFsm.deviceID, "section absolute": oFsm.nextDownloadSectionsAbsolute, "error": err})
 			oFsm.abortOnOmciError(ctx, false)
 			return
 		}
+
 		oFsm.mutexUpgradeParams.Lock()
 		oFsm.nextDownloadSectionsAbsolute++ //always increase the absolute section counter after having sent one
 		if windowAckRequest == 1 {
 			oFsm.mutexUpgradeParams.Unlock()
+
+			if omciTxReq.OnuSwWindow == nil {
+				logger.Errorw(ctx, "fail to send sections in a window", log.Fields{
+					"device-id": oFsm.deviceID, "section absolute": oFsm.nextDownloadSectionsAbsolute, "error": err})
+				oFsm.abortOnOmciError(ctx, false)
+				return
+			}
+
 			pUpgradeFsm := oFsm.PAdaptFsm
 			if pUpgradeFsm != nil {
 				_ = pUpgradeFsm.PFsm.Event(UpgradeEvWaitWindowAck) //state transition to upgradeStVerifyWindow
+				oFsm.pOmciCC.SendOnuSwSectionsWindowWithRxSupervision(ctx, omciTxReq, oFsm.pDeviceHandler.GetOmciTimeout(), oFsm.PAdaptFsm.CommChan)
 				return
 			}
 			logger.Warnw(ctx, "pUpgradeFsm is nil", log.Fields{"device-id": oFsm.deviceID})
 			return
 		}
-		framePrint = false                //for the next Section frame (if wanted, can be enabled in logic before sendXXX())
+
 		oFsm.nextDownloadSectionsWindow++ //increase the window related section counter only if not in the last section
 		if oFsm.omciSectionInterleaveDelay > 0 {
 			//ensure a defined intersection-time-gap to leave space for further processing, other ONU's ...
diff --git a/vendor/github.com/opencord/voltha-protos/v5/go/inter_adapter/inter_adapter.pb.go b/vendor/github.com/opencord/voltha-protos/v5/go/inter_adapter/inter_adapter.pb.go
index 7055d3e..fd76f67 100644
--- a/vendor/github.com/opencord/voltha-protos/v5/go/inter_adapter/inter_adapter.pb.go
+++ b/vendor/github.com/opencord/voltha-protos/v5/go/inter_adapter/inter_adapter.pb.go
@@ -95,6 +95,77 @@
 	return ""
 }
 
+type OmciMessages struct {
+	Messages             [][]byte                    `protobuf:"bytes,1,rep,name=messages,proto3" json:"messages,omitempty"`
+	ConnectStatus        common.ConnectStatus_Types  `protobuf:"varint,2,opt,name=connect_status,json=connectStatus,proto3,enum=common.ConnectStatus_Types" json:"connect_status,omitempty"`
+	ProxyAddress         *voltha.Device_ProxyAddress `protobuf:"bytes,3,opt,name=proxy_address,json=proxyAddress,proto3" json:"proxy_address,omitempty"`
+	ParentDeviceId       string                      `protobuf:"bytes,4,opt,name=parent_device_id,json=parentDeviceId,proto3" json:"parent_device_id,omitempty"`
+	ChildDeviceId        string                      `protobuf:"bytes,5,opt,name=child_device_id,json=childDeviceId,proto3" json:"child_device_id,omitempty"`
+	XXX_NoUnkeyedLiteral struct{}                    `json:"-"`
+	XXX_unrecognized     []byte                      `json:"-"`
+	XXX_sizecache        int32                       `json:"-"`
+}
+
+func (m *OmciMessages) Reset()         { *m = OmciMessages{} }
+func (m *OmciMessages) String() string { return proto.CompactTextString(m) }
+func (*OmciMessages) ProtoMessage()    {}
+func (*OmciMessages) Descriptor() ([]byte, []int) {
+	return fileDescriptor_a316e60f0a1fb837, []int{1}
+}
+
+func (m *OmciMessages) XXX_Unmarshal(b []byte) error {
+	return xxx_messageInfo_OmciMessages.Unmarshal(m, b)
+}
+func (m *OmciMessages) XXX_Marshal(b []byte, deterministic bool) ([]byte, error) {
+	return xxx_messageInfo_OmciMessages.Marshal(b, m, deterministic)
+}
+func (m *OmciMessages) XXX_Merge(src proto.Message) {
+	xxx_messageInfo_OmciMessages.Merge(m, src)
+}
+func (m *OmciMessages) XXX_Size() int {
+	return xxx_messageInfo_OmciMessages.Size(m)
+}
+func (m *OmciMessages) XXX_DiscardUnknown() {
+	xxx_messageInfo_OmciMessages.DiscardUnknown(m)
+}
+
+var xxx_messageInfo_OmciMessages proto.InternalMessageInfo
+
+func (m *OmciMessages) GetMessages() [][]byte {
+	if m != nil {
+		return m.Messages
+	}
+	return nil
+}
+
+func (m *OmciMessages) GetConnectStatus() common.ConnectStatus_Types {
+	if m != nil {
+		return m.ConnectStatus
+	}
+	return common.ConnectStatus_UNKNOWN
+}
+
+func (m *OmciMessages) GetProxyAddress() *voltha.Device_ProxyAddress {
+	if m != nil {
+		return m.ProxyAddress
+	}
+	return nil
+}
+
+func (m *OmciMessages) GetParentDeviceId() string {
+	if m != nil {
+		return m.ParentDeviceId
+	}
+	return ""
+}
+
+func (m *OmciMessages) GetChildDeviceId() string {
+	if m != nil {
+		return m.ChildDeviceId
+	}
+	return ""
+}
+
 type TechProfileDownloadMessage struct {
 	DeviceId       string `protobuf:"bytes,1,opt,name=device_id,json=deviceId,proto3" json:"device_id,omitempty"`
 	UniId          uint32 `protobuf:"varint,2,opt,name=uni_id,json=uniId,proto3" json:"uni_id,omitempty"`
@@ -112,7 +183,7 @@
 func (m *TechProfileDownloadMessage) String() string { return proto.CompactTextString(m) }
 func (*TechProfileDownloadMessage) ProtoMessage()    {}
 func (*TechProfileDownloadMessage) Descriptor() ([]byte, []int) {
-	return fileDescriptor_a316e60f0a1fb837, []int{1}
+	return fileDescriptor_a316e60f0a1fb837, []int{2}
 }
 
 func (m *TechProfileDownloadMessage) XXX_Unmarshal(b []byte) error {
@@ -213,7 +284,7 @@
 func (m *DeleteGemPortMessage) String() string { return proto.CompactTextString(m) }
 func (*DeleteGemPortMessage) ProtoMessage()    {}
 func (*DeleteGemPortMessage) Descriptor() ([]byte, []int) {
-	return fileDescriptor_a316e60f0a1fb837, []int{2}
+	return fileDescriptor_a316e60f0a1fb837, []int{3}
 }
 
 func (m *DeleteGemPortMessage) XXX_Unmarshal(b []byte) error {
@@ -276,7 +347,7 @@
 func (m *DeleteTcontMessage) String() string { return proto.CompactTextString(m) }
 func (*DeleteTcontMessage) ProtoMessage()    {}
 func (*DeleteTcontMessage) Descriptor() ([]byte, []int) {
-	return fileDescriptor_a316e60f0a1fb837, []int{3}
+	return fileDescriptor_a316e60f0a1fb837, []int{4}
 }
 
 func (m *DeleteTcontMessage) XXX_Unmarshal(b []byte) error {
@@ -337,7 +408,7 @@
 func (m *OnuIndicationMessage) String() string { return proto.CompactTextString(m) }
 func (*OnuIndicationMessage) ProtoMessage()    {}
 func (*OnuIndicationMessage) Descriptor() ([]byte, []int) {
-	return fileDescriptor_a316e60f0a1fb837, []int{4}
+	return fileDescriptor_a316e60f0a1fb837, []int{5}
 }
 
 func (m *OnuIndicationMessage) XXX_Unmarshal(b []byte) error {
@@ -388,7 +459,7 @@
 func (m *TechProfileInstanceRequestMessage) String() string { return proto.CompactTextString(m) }
 func (*TechProfileInstanceRequestMessage) ProtoMessage()    {}
 func (*TechProfileInstanceRequestMessage) Descriptor() ([]byte, []int) {
-	return fileDescriptor_a316e60f0a1fb837, []int{5}
+	return fileDescriptor_a316e60f0a1fb837, []int{6}
 }
 
 func (m *TechProfileInstanceRequestMessage) XXX_Unmarshal(b []byte) error {
@@ -453,6 +524,7 @@
 
 func init() {
 	proto.RegisterType((*OmciMessage)(nil), "inter_adapter.OmciMessage")
+	proto.RegisterType((*OmciMessages)(nil), "inter_adapter.OmciMessages")
 	proto.RegisterType((*TechProfileDownloadMessage)(nil), "inter_adapter.TechProfileDownloadMessage")
 	proto.RegisterType((*DeleteGemPortMessage)(nil), "inter_adapter.DeleteGemPortMessage")
 	proto.RegisterType((*DeleteTcontMessage)(nil), "inter_adapter.DeleteTcontMessage")
@@ -463,43 +535,45 @@
 func init() { proto.RegisterFile("voltha_protos/inter_adapter.proto", fileDescriptor_a316e60f0a1fb837) }
 
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 }
diff --git a/vendor/github.com/opencord/voltha-protos/v5/go/olt_inter_adapter_service/olt_inter_adapter_service.pb.go b/vendor/github.com/opencord/voltha-protos/v5/go/olt_inter_adapter_service/olt_inter_adapter_service.pb.go
index d958a65..93dade6 100644
--- a/vendor/github.com/opencord/voltha-protos/v5/go/olt_inter_adapter_service/olt_inter_adapter_service.pb.go
+++ b/vendor/github.com/opencord/voltha-protos/v5/go/olt_inter_adapter_service/olt_inter_adapter_service.pb.go
@@ -33,27 +33,28 @@
 }
 
 var fileDescriptor_3ddb40a5aae0f6e1 = []byte{
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-	0x00, 0x00, 0xff, 0xff, 0x7c, 0x06, 0x94, 0x70, 0x74, 0x02, 0x00, 0x00,
+	// 330 bytes of a gzipped FileDescriptorProto
+	0x1f, 0x8b, 0x08, 0x00, 0x00, 0x00, 0x00, 0x00, 0x02, 0xff, 0x74, 0x92, 0x3f, 0x4f, 0xf3, 0x30,
+	0x10, 0x87, 0xf5, 0xbe, 0x03, 0x83, 0x17, 0xc0, 0x42, 0x95, 0x48, 0x59, 0x18, 0x19, 0xea, 0x20,
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+	0x92, 0xe3, 0x0b, 0xf6, 0xa5, 0xd0, 0x6f, 0xc1, 0x27, 0xe4, 0xb3, 0xa0, 0xc4, 0xee, 0x90, 0xa8,
+	0x99, 0xa2, 0xe8, 0x9e, 0xdf, 0xe3, 0x3b, 0xdd, 0xb1, 0xc1, 0x16, 0x35, 0xa5, 0x72, 0x59, 0x58,
+	0x24, 0x74, 0x31, 0x6a, 0x5a, 0x66, 0x86, 0xc0, 0x2e, 0xe5, 0x5a, 0x16, 0xd5, 0xd7, 0x81, 0xdd,
+	0x66, 0x0a, 0x44, 0x0d, 0xf0, 0xf3, 0x4e, 0x20, 0x8a, 0x9a, 0x26, 0x85, 0x79, 0x8e, 0xc6, 0xc7,
+	0xa2, 0x7e, 0x82, 0x98, 0x68, 0x88, 0xeb, 0xbf, 0x55, 0xb9, 0x89, 0x21, 0x2f, 0x68, 0x17, 0x8a,
+	0x97, 0xcd, 0x60, 0xc3, 0x1e, 0x90, 0x96, 0x3b, 0x05, 0xa9, 0x29, 0xf5, 0xb5, 0x9b, 0xdf, 0xff,
+	0xac, 0x37, 0xd3, 0x34, 0xad, 0x62, 0x43, 0x9f, 0x5a, 0xf8, 0x96, 0xf8, 0x3d, 0x3b, 0x1e, 0x03,
+	0x4d, 0x6a, 0x7a, 0x41, 0x92, 0x4a, 0xc7, 0xb9, 0x08, 0x8d, 0x3d, 0xa0, 0x31, 0xa0, 0x28, 0x43,
+	0x13, 0x9d, 0x89, 0x20, 0x6c, 0x90, 0xcf, 0xec, 0x64, 0x6e, 0xf1, 0x7b, 0x37, 0xcb, 0x55, 0xf6,
+	0x0a, 0x9f, 0x25, 0x38, 0xe2, 0x91, 0x68, 0x76, 0x57, 0xd5, 0x5e, 0xc0, 0x39, 0x99, 0x40, 0xd4,
+	0x13, 0x7e, 0x48, 0xb1, 0x1f, 0x52, 0x3c, 0x55, 0x43, 0xf2, 0x09, 0x3b, 0x6d, 0x7b, 0x1c, 0xef,
+	0x77, 0x8b, 0x5c, 0xa7, 0xa9, 0x64, 0xbd, 0x31, 0xd0, 0x1b, 0xa8, 0x74, 0x6e, 0x71, 0x93, 0x69,
+	0x98, 0x1a, 0x47, 0xd2, 0x28, 0xe0, 0xd7, 0x2d, 0xdd, 0x01, 0x26, 0x3c, 0xbd, 0xef, 0xf6, 0xaa,
+	0x3b, 0xf1, 0x88, 0x5f, 0x46, 0xa3, 0x5c, 0x07, 0x74, 0xf4, 0xf3, 0x8f, 0x0d, 0xd0, 0x26, 0x02,
+	0x0b, 0x30, 0x0a, 0xed, 0x5a, 0xf8, 0x65, 0x88, 0xce, 0x53, 0x18, 0x5d, 0xbc, 0xd7, 0xc4, 0xe1,
+	0xad, 0x7c, 0x0c, 0x93, 0x8c, 0xd2, 0x72, 0x55, 0x2d, 0x22, 0xde, 0x3b, 0x63, 0xef, 0x1c, 0x84,
+	0x05, 0x6f, 0xef, 0xe2, 0x04, 0xbb, 0x8f, 0x71, 0x75, 0x54, 0x73, 0xb7, 0x7f, 0x01, 0x00, 0x00,
+	0xff, 0xff, 0xac, 0x65, 0xa9, 0x8b, 0xbe, 0x02, 0x00, 0x00,
 }
 
 // Reference imports to suppress errors if they are not otherwise used.
@@ -72,6 +73,7 @@
 	// to the gRPC server hosting the OltInterAdapterService service
 	GetHealthStatus(ctx context.Context, in *common.Connection, opts ...grpc.CallOption) (*health.HealthStatus, error)
 	ProxyOmciRequest(ctx context.Context, in *inter_adapter.OmciMessage, opts ...grpc.CallOption) (*empty.Empty, error)
+	ProxyOmciRequests(ctx context.Context, in *inter_adapter.OmciMessages, opts ...grpc.CallOption) (*empty.Empty, error)
 	GetTechProfileInstance(ctx context.Context, in *inter_adapter.TechProfileInstanceRequestMessage, opts ...grpc.CallOption) (*inter_adapter.TechProfileDownloadMessage, error)
 }
 
@@ -101,6 +103,15 @@
 	return out, nil
 }
 
+func (c *oltInterAdapterServiceClient) ProxyOmciRequests(ctx context.Context, in *inter_adapter.OmciMessages, opts ...grpc.CallOption) (*empty.Empty, error) {
+	out := new(empty.Empty)
+	err := c.cc.Invoke(ctx, "/olt_inter_adapter_service.OltInterAdapterService/ProxyOmciRequests", in, out, opts...)
+	if err != nil {
+		return nil, err
+	}
+	return out, nil
+}
+
 func (c *oltInterAdapterServiceClient) GetTechProfileInstance(ctx context.Context, in *inter_adapter.TechProfileInstanceRequestMessage, opts ...grpc.CallOption) (*inter_adapter.TechProfileDownloadMessage, error) {
 	out := new(inter_adapter.TechProfileDownloadMessage)
 	err := c.cc.Invoke(ctx, "/olt_inter_adapter_service.OltInterAdapterService/GetTechProfileInstance", in, out, opts...)
@@ -116,6 +127,7 @@
 	// to the gRPC server hosting the OltInterAdapterService service
 	GetHealthStatus(context.Context, *common.Connection) (*health.HealthStatus, error)
 	ProxyOmciRequest(context.Context, *inter_adapter.OmciMessage) (*empty.Empty, error)
+	ProxyOmciRequests(context.Context, *inter_adapter.OmciMessages) (*empty.Empty, error)
 	GetTechProfileInstance(context.Context, *inter_adapter.TechProfileInstanceRequestMessage) (*inter_adapter.TechProfileDownloadMessage, error)
 }
 
@@ -129,6 +141,9 @@
 func (*UnimplementedOltInterAdapterServiceServer) ProxyOmciRequest(ctx context.Context, req *inter_adapter.OmciMessage) (*empty.Empty, error) {
 	return nil, status.Errorf(codes.Unimplemented, "method ProxyOmciRequest not implemented")
 }
+func (*UnimplementedOltInterAdapterServiceServer) ProxyOmciRequests(ctx context.Context, req *inter_adapter.OmciMessages) (*empty.Empty, error) {
+	return nil, status.Errorf(codes.Unimplemented, "method ProxyOmciRequests not implemented")
+}
 func (*UnimplementedOltInterAdapterServiceServer) GetTechProfileInstance(ctx context.Context, req *inter_adapter.TechProfileInstanceRequestMessage) (*inter_adapter.TechProfileDownloadMessage, error) {
 	return nil, status.Errorf(codes.Unimplemented, "method GetTechProfileInstance not implemented")
 }
@@ -173,6 +188,24 @@
 	return interceptor(ctx, in, info, handler)
 }
 
+func _OltInterAdapterService_ProxyOmciRequests_Handler(srv interface{}, ctx context.Context, dec func(interface{}) error, interceptor grpc.UnaryServerInterceptor) (interface{}, error) {
+	in := new(inter_adapter.OmciMessages)
+	if err := dec(in); err != nil {
+		return nil, err
+	}
+	if interceptor == nil {
+		return srv.(OltInterAdapterServiceServer).ProxyOmciRequests(ctx, in)
+	}
+	info := &grpc.UnaryServerInfo{
+		Server:     srv,
+		FullMethod: "/olt_inter_adapter_service.OltInterAdapterService/ProxyOmciRequests",
+	}
+	handler := func(ctx context.Context, req interface{}) (interface{}, error) {
+		return srv.(OltInterAdapterServiceServer).ProxyOmciRequests(ctx, req.(*inter_adapter.OmciMessages))
+	}
+	return interceptor(ctx, in, info, handler)
+}
+
 func _OltInterAdapterService_GetTechProfileInstance_Handler(srv interface{}, ctx context.Context, dec func(interface{}) error, interceptor grpc.UnaryServerInterceptor) (interface{}, error) {
 	in := new(inter_adapter.TechProfileInstanceRequestMessage)
 	if err := dec(in); err != nil {
@@ -204,6 +237,10 @@
 			Handler:    _OltInterAdapterService_ProxyOmciRequest_Handler,
 		},
 		{
+			MethodName: "ProxyOmciRequests",
+			Handler:    _OltInterAdapterService_ProxyOmciRequests_Handler,
+		},
+		{
 			MethodName: "GetTechProfileInstance",
 			Handler:    _OltInterAdapterService_GetTechProfileInstance_Handler,
 		},
diff --git a/vendor/modules.txt b/vendor/modules.txt
index eb6c1e9..be70301 100644
--- a/vendor/modules.txt
+++ b/vendor/modules.txt
@@ -141,7 +141,7 @@
 github.com/opencord/voltha-lib-go/v7/pkg/platform
 github.com/opencord/voltha-lib-go/v7/pkg/probe
 github.com/opencord/voltha-lib-go/v7/pkg/version
-# github.com/opencord/voltha-protos/v5 v5.1.2
+# github.com/opencord/voltha-protos/v5 v5.2.0
 ## explicit
 github.com/opencord/voltha-protos/v5/go/adapter_service
 github.com/opencord/voltha-protos/v5/go/common