diff --git a/vendor/github.com/opencord/voltha-lib-go/v4/pkg/adapters/adapterif/adapter_proxy_if.go b/vendor/github.com/opencord/voltha-lib-go/v4/pkg/adapters/adapterif/adapter_proxy_if.go
new file mode 100644
index 0000000..30fcead
--- /dev/null
+++ b/vendor/github.com/opencord/voltha-lib-go/v4/pkg/adapters/adapterif/adapter_proxy_if.go
@@ -0,0 +1,36 @@
+/*
+ * Copyright 2018-present Open Networking Foundation
+
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+
+ * http://www.apache.org/licenses/LICENSE-2.0
+
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package adapterif
+
+import (
+	"context"
+
+	"github.com/golang/protobuf/proto"
+	ic "github.com/opencord/voltha-protos/v4/go/inter_container"
+)
+
+// AdapterProxy interface for AdapterProxy implementation.
+type AdapterProxy interface {
+	SendInterAdapterMessage(ctx context.Context,
+		msg proto.Message,
+		msgType ic.InterAdapterMessageType_Types,
+		fromAdapter string,
+		toAdapter string,
+		toDeviceID string,
+		proxyDeviceID string,
+		messageID string) error
+}
diff --git a/vendor/github.com/opencord/voltha-lib-go/v4/pkg/adapters/adapterif/core_proxy_if.go b/vendor/github.com/opencord/voltha-lib-go/v4/pkg/adapters/adapterif/core_proxy_if.go
new file mode 100644
index 0000000..36939bd
--- /dev/null
+++ b/vendor/github.com/opencord/voltha-lib-go/v4/pkg/adapters/adapterif/core_proxy_if.go
@@ -0,0 +1,52 @@
+/*
+ * Copyright 2018-present Open Networking Foundation
+
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+
+ * http://www.apache.org/licenses/LICENSE-2.0
+
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package adapterif
+
+import (
+	"context"
+
+	"github.com/opencord/voltha-protos/v4/go/voltha"
+)
+
+// CoreProxy interface for voltha-go coreproxy.
+type CoreProxy interface {
+	UpdateCoreReference(deviceID string, coreReference string)
+	DeleteCoreReference(deviceID string)
+	RegisterAdapter(ctx context.Context, adapter *voltha.Adapter, deviceTypes *voltha.DeviceTypes) error
+	DeviceUpdate(ctx context.Context, device *voltha.Device) error
+	PortCreated(ctx context.Context, deviceID string, port *voltha.Port) error
+	PortsStateUpdate(ctx context.Context, deviceID string, portTypeFilter uint32, operStatus voltha.OperStatus_Types) error
+	DeleteAllPorts(ctx context.Context, deviceID string) error
+	GetDevicePort(ctx context.Context, deviceID string, portNo uint32) (*voltha.Port, error)
+	ListDevicePorts(ctx context.Context, deviceID string) ([]*voltha.Port, error)
+	DeviceStateUpdate(ctx context.Context, deviceID string,
+		connStatus voltha.ConnectStatus_Types, operStatus voltha.OperStatus_Types) error
+
+	DevicePMConfigUpdate(ctx context.Context, pmConfigs *voltha.PmConfigs) error
+	ChildDeviceDetected(ctx context.Context, parentDeviceID string, parentPortNo int,
+		childDeviceType string, channelID int, vendorID string, serialNumber string, onuID int64) (*voltha.Device, error)
+
+	ChildDevicesLost(ctx context.Context, parentDeviceID string) error
+	ChildDevicesDetected(ctx context.Context, parentDeviceID string) error
+	GetDevice(ctx context.Context, parentDeviceID string, deviceID string) (*voltha.Device, error)
+	GetChildDevice(ctx context.Context, parentDeviceID string, kwargs map[string]interface{}) (*voltha.Device, error)
+	GetChildDevices(ctx context.Context, parentDeviceID string) (*voltha.Devices, error)
+	SendPacketIn(ctx context.Context, deviceID string, port uint32, pktPayload []byte) error
+	DeviceReasonUpdate(ctx context.Context, deviceID string, deviceReason string) error
+	PortStateUpdate(ctx context.Context, deviceID string, pType voltha.Port_PortType, portNo uint32,
+		operStatus voltha.OperStatus_Types) error
+}
diff --git a/vendor/github.com/opencord/voltha-lib-go/v4/pkg/adapters/adapterif/events_proxy_if.go b/vendor/github.com/opencord/voltha-lib-go/v4/pkg/adapters/adapterif/events_proxy_if.go
new file mode 100644
index 0000000..7d8a053
--- /dev/null
+++ b/vendor/github.com/opencord/voltha-lib-go/v4/pkg/adapters/adapterif/events_proxy_if.go
@@ -0,0 +1,40 @@
+/*
+ * Copyright 2018-present Open Networking Foundation
+
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+
+ * http://www.apache.org/licenses/LICENSE-2.0
+
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package adapterif
+
+import (
+	"context"
+	"github.com/opencord/voltha-protos/v4/go/voltha"
+)
+
+// EventProxy interface for eventproxy
+type EventProxy interface {
+	SendDeviceEvent(ctx context.Context, deviceEvent *voltha.DeviceEvent, category EventCategory,
+		subCategory EventSubCategory, raisedTs int64) error
+	SendKpiEvent(ctx context.Context, id string, deviceEvent *voltha.KpiEvent2, category EventCategory,
+		subCategory EventSubCategory, raisedTs int64) error
+}
+
+const (
+	EventTypeVersion = "0.1"
+)
+
+type (
+	EventType        = voltha.EventType_Types
+	EventCategory    = voltha.EventCategory_Types
+	EventSubCategory = voltha.EventSubCategory_Types
+)
diff --git a/vendor/github.com/opencord/voltha-lib-go/v4/pkg/adapters/common/adapter_proxy.go b/vendor/github.com/opencord/voltha-lib-go/v4/pkg/adapters/common/adapter_proxy.go
new file mode 100644
index 0000000..9ade0d1
--- /dev/null
+++ b/vendor/github.com/opencord/voltha-lib-go/v4/pkg/adapters/common/adapter_proxy.go
@@ -0,0 +1,105 @@
+/*
+ * Copyright 2018-present Open Networking Foundation
+
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+
+ * http://www.apache.org/licenses/LICENSE-2.0
+
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package common
+
+import (
+	"context"
+	"github.com/opencord/voltha-lib-go/v4/pkg/db"
+
+	"github.com/golang/protobuf/proto"
+	"github.com/golang/protobuf/ptypes"
+	"github.com/golang/protobuf/ptypes/any"
+	"github.com/google/uuid"
+	"github.com/opencord/voltha-lib-go/v4/pkg/kafka"
+	"github.com/opencord/voltha-lib-go/v4/pkg/log"
+	ic "github.com/opencord/voltha-protos/v4/go/inter_container"
+)
+
+type AdapterProxy struct {
+	kafkaICProxy kafka.InterContainerProxy
+	coreTopic    string
+	endpointMgr  kafka.EndpointManager
+}
+
+func NewAdapterProxy(ctx context.Context, kafkaProxy kafka.InterContainerProxy, coreTopic string, backend *db.Backend) *AdapterProxy {
+	proxy := AdapterProxy{
+		kafkaICProxy: kafkaProxy,
+		coreTopic:    coreTopic,
+		endpointMgr:  kafka.NewEndpointManager(backend),
+	}
+	logger.Debugw(ctx, "topics", log.Fields{"core": proxy.coreTopic})
+	return &proxy
+}
+
+func (ap *AdapterProxy) SendInterAdapterMessage(ctx context.Context,
+	msg proto.Message,
+	msgType ic.InterAdapterMessageType_Types,
+	fromAdapter string,
+	toAdapter string,
+	toDeviceId string,
+	proxyDeviceId string,
+	messageId string) error {
+	logger.Debugw(ctx, "sending-inter-adapter-message", log.Fields{"type": msgType, "from": fromAdapter,
+		"to": toAdapter, "toDevice": toDeviceId, "proxyDevice": proxyDeviceId})
+
+	//Marshal the message
+	var marshalledMsg *any.Any
+	var err error
+	if marshalledMsg, err = ptypes.MarshalAny(msg); err != nil {
+		logger.Warnw(ctx, "cannot-marshal-msg", log.Fields{"error": err})
+		return err
+	}
+
+	// Set up the required rpc arguments
+	endpoint, err := ap.endpointMgr.GetEndpoint(ctx, toDeviceId, toAdapter)
+	if err != nil {
+		return err
+	}
+
+	//Build the inter adapter message
+	header := &ic.InterAdapterHeader{
+		Type:          msgType,
+		FromTopic:     fromAdapter,
+		ToTopic:       string(endpoint),
+		ToDeviceId:    toDeviceId,
+		ProxyDeviceId: proxyDeviceId,
+	}
+	if messageId != "" {
+		header.Id = messageId
+	} else {
+		header.Id = uuid.New().String()
+	}
+	header.Timestamp = ptypes.TimestampNow()
+	iaMsg := &ic.InterAdapterMessage{
+		Header: header,
+		Body:   marshalledMsg,
+	}
+	args := make([]*kafka.KVArg, 1)
+	args[0] = &kafka.KVArg{
+		Key:   "msg",
+		Value: iaMsg,
+	}
+
+	topic := kafka.Topic{Name: string(endpoint)}
+	replyToTopic := kafka.Topic{Name: fromAdapter}
+	rpc := "process_inter_adapter_message"
+
+	// Add a indication in context to differentiate this Inter Adapter message during Span processing in Kafka IC proxy
+	ctx = context.WithValue(ctx, "inter-adapter-msg-type", msgType)
+	success, result := ap.kafkaICProxy.InvokeRPC(ctx, rpc, &topic, &replyToTopic, true, proxyDeviceId, args...)
+	logger.Debugw(ctx, "inter-adapter-msg-response", log.Fields{"replyTopic": replyToTopic, "success": success})
+	return unPackResponse(ctx, rpc, "", success, result)
+}
diff --git a/vendor/github.com/opencord/voltha-lib-go/v4/pkg/adapters/common/common.go b/vendor/github.com/opencord/voltha-lib-go/v4/pkg/adapters/common/common.go
new file mode 100644
index 0000000..5d7d7f8
--- /dev/null
+++ b/vendor/github.com/opencord/voltha-lib-go/v4/pkg/adapters/common/common.go
@@ -0,0 +1,31 @@
+/*
+ * Copyright 2020-present Open Networking Foundation
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package common
+
+import (
+	"github.com/opencord/voltha-lib-go/v4/pkg/log"
+)
+
+var logger log.CLogger
+
+func init() {
+	// Setup this package so that it's log level can be modified at run time
+	var err error
+	logger, err = log.RegisterPackage(log.JSON, log.ErrorLevel, log.Fields{})
+	if err != nil {
+		panic(err)
+	}
+}
diff --git a/vendor/github.com/opencord/voltha-lib-go/v4/pkg/adapters/common/core_proxy.go b/vendor/github.com/opencord/voltha-lib-go/v4/pkg/adapters/common/core_proxy.go
new file mode 100644
index 0000000..1077226
--- /dev/null
+++ b/vendor/github.com/opencord/voltha-lib-go/v4/pkg/adapters/common/core_proxy.go
@@ -0,0 +1,689 @@
+/*
+ * Copyright 2018-present Open Networking Foundation
+
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+
+ * http://www.apache.org/licenses/LICENSE-2.0
+
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package common
+
+import (
+	"context"
+	"sync"
+
+	"github.com/golang/protobuf/ptypes"
+	a "github.com/golang/protobuf/ptypes/any"
+	"github.com/opencord/voltha-lib-go/v4/pkg/kafka"
+	"github.com/opencord/voltha-lib-go/v4/pkg/log"
+	ic "github.com/opencord/voltha-protos/v4/go/inter_container"
+	"github.com/opencord/voltha-protos/v4/go/voltha"
+	"google.golang.org/grpc/codes"
+	"google.golang.org/grpc/status"
+)
+
+type CoreProxy struct {
+	kafkaICProxy        kafka.InterContainerProxy
+	adapterTopic        string
+	coreTopic           string
+	deviceIdCoreMap     map[string]string
+	lockDeviceIdCoreMap sync.RWMutex
+}
+
+func NewCoreProxy(ctx context.Context, kafkaProxy kafka.InterContainerProxy, adapterTopic string, coreTopic string) *CoreProxy {
+	var proxy CoreProxy
+	proxy.kafkaICProxy = kafkaProxy
+	proxy.adapterTopic = adapterTopic
+	proxy.coreTopic = coreTopic
+	proxy.deviceIdCoreMap = make(map[string]string)
+	proxy.lockDeviceIdCoreMap = sync.RWMutex{}
+	logger.Debugw(ctx, "TOPICS", log.Fields{"core": proxy.coreTopic, "adapter": proxy.adapterTopic})
+
+	return &proxy
+}
+
+func unPackResponse(ctx context.Context, rpc string, deviceId string, success bool, response *a.Any) error {
+	if success {
+		return nil
+	} else {
+		unpackResult := &ic.Error{}
+		var err error
+		if err = ptypes.UnmarshalAny(response, unpackResult); err != nil {
+			logger.Warnw(ctx, "cannot-unmarshal-response", log.Fields{"error": err})
+		}
+		logger.Debugw(ctx, "response", log.Fields{"rpc": rpc, "device-id": deviceId, "success": success, "error": err})
+		// TODO:  Need to get the real error code
+		return status.Errorf(codes.Canceled, "%s", unpackResult.Reason)
+	}
+}
+
+// UpdateCoreReference adds or update a core reference (really the topic name) for a given device Id
+func (ap *CoreProxy) UpdateCoreReference(deviceId string, coreReference string) {
+	ap.lockDeviceIdCoreMap.Lock()
+	defer ap.lockDeviceIdCoreMap.Unlock()
+	ap.deviceIdCoreMap[deviceId] = coreReference
+}
+
+// DeleteCoreReference removes a core reference (really the topic name) for a given device Id
+func (ap *CoreProxy) DeleteCoreReference(deviceId string) {
+	ap.lockDeviceIdCoreMap.Lock()
+	defer ap.lockDeviceIdCoreMap.Unlock()
+	delete(ap.deviceIdCoreMap, deviceId)
+}
+
+func (ap *CoreProxy) getCoreTopic(deviceId string) kafka.Topic {
+	ap.lockDeviceIdCoreMap.Lock()
+	defer ap.lockDeviceIdCoreMap.Unlock()
+
+	if t, exist := ap.deviceIdCoreMap[deviceId]; exist {
+		return kafka.Topic{Name: t}
+	}
+
+	return kafka.Topic{Name: ap.coreTopic}
+}
+
+func (ap *CoreProxy) getAdapterTopic(args ...string) kafka.Topic {
+	return kafka.Topic{Name: ap.adapterTopic}
+}
+
+func (ap *CoreProxy) RegisterAdapter(ctx context.Context, adapter *voltha.Adapter, deviceTypes *voltha.DeviceTypes) error {
+	logger.Debugw(ctx, "registering-adapter", log.Fields{"coreTopic": ap.coreTopic, "adapterTopic": ap.adapterTopic})
+	rpc := "Register"
+	topic := kafka.Topic{Name: ap.coreTopic}
+	replyToTopic := ap.getAdapterTopic()
+	args := make([]*kafka.KVArg, 2)
+
+	if adapter.TotalReplicas == 0 && adapter.CurrentReplica != 0 {
+		logger.Fatal(ctx, "totalReplicas can't be 0, since you're here you have at least one")
+	}
+
+	if adapter.CurrentReplica == 0 && adapter.TotalReplicas != 0 {
+		logger.Fatal(ctx, "currentReplica can't be 0, it has to start from 1")
+	}
+
+	if adapter.CurrentReplica == 0 && adapter.TotalReplicas == 0 {
+		// if the adapter is not setting these fields they default to 0,
+		// in that case it means the adapter is not ready to be scaled and thus it defaults
+		// to a single instance
+		adapter.CurrentReplica = 1
+		adapter.TotalReplicas = 1
+	}
+
+	if adapter.CurrentReplica > adapter.TotalReplicas {
+		logger.Fatalf(ctx, "CurrentReplica (%d) can't be greater than TotalReplicas (%d)",
+			adapter.CurrentReplica, adapter.TotalReplicas)
+	}
+
+	args[0] = &kafka.KVArg{
+		Key:   "adapter",
+		Value: adapter,
+	}
+	args[1] = &kafka.KVArg{
+		Key:   "deviceTypes",
+		Value: deviceTypes,
+	}
+
+	success, result := ap.kafkaICProxy.InvokeRPC(ctx, rpc, &topic, &replyToTopic, true, "", args...)
+	logger.Debugw(ctx, "Register-Adapter-response", log.Fields{"replyTopic": replyToTopic, "success": success})
+	return unPackResponse(ctx, rpc, "", success, result)
+}
+
+func (ap *CoreProxy) DeviceUpdate(ctx context.Context, device *voltha.Device) error {
+	logger.Debugw(ctx, "DeviceUpdate", log.Fields{"device-id": device.Id})
+	rpc := "DeviceUpdate"
+	toTopic := ap.getCoreTopic(device.Id)
+	args := make([]*kafka.KVArg, 1)
+	args[0] = &kafka.KVArg{
+		Key:   "device",
+		Value: device,
+	}
+	// Use a device specific topic as we are the only adaptercore handling requests for this device
+	replyToTopic := ap.getAdapterTopic()
+	success, result := ap.kafkaICProxy.InvokeRPC(log.WithSpanFromContext(context.Background(), ctx), rpc, &toTopic, &replyToTopic, true, device.Id, args...)
+	logger.Debugw(ctx, "DeviceUpdate-response", log.Fields{"device-id": device.Id, "success": success})
+	return unPackResponse(ctx, rpc, device.Id, success, result)
+}
+
+func (ap *CoreProxy) PortCreated(ctx context.Context, deviceId string, port *voltha.Port) error {
+	logger.Debugw(ctx, "PortCreated", log.Fields{"portNo": port.PortNo})
+	rpc := "PortCreated"
+	// Use a device specific topic to send the request.  The adapter handling the device creates a device
+	// specific topic
+	toTopic := ap.getCoreTopic(deviceId)
+	args := make([]*kafka.KVArg, 2)
+	id := &voltha.ID{Id: deviceId}
+	args[0] = &kafka.KVArg{
+		Key:   "device_id",
+		Value: id,
+	}
+	args[1] = &kafka.KVArg{
+		Key:   "port",
+		Value: port,
+	}
+
+	// Use a device specific topic as we are the only adaptercore handling requests for this device
+	replyToTopic := ap.getAdapterTopic()
+	success, result := ap.kafkaICProxy.InvokeRPC(log.WithSpanFromContext(context.Background(), ctx), rpc, &toTopic, &replyToTopic, true, deviceId, args...)
+	logger.Debugw(ctx, "PortCreated-response", log.Fields{"device-id": deviceId, "success": success})
+	return unPackResponse(ctx, rpc, deviceId, success, result)
+}
+
+func (ap *CoreProxy) PortsStateUpdate(ctx context.Context, deviceId string, portTypeFilter uint32, operStatus voltha.OperStatus_Types) error {
+	logger.Debugw(ctx, "PortsStateUpdate", log.Fields{"device-id": deviceId})
+	rpc := "PortsStateUpdate"
+	// Use a device specific topic to send the request.  The adapter handling the device creates a device
+	// specific topic
+	toTopic := ap.getCoreTopic(deviceId)
+	args := []*kafka.KVArg{{
+		Key:   "device_id",
+		Value: &voltha.ID{Id: deviceId},
+	}, {
+		Key:   "port_type_filter",
+		Value: &ic.IntType{Val: int64(portTypeFilter)},
+	}, {
+		Key:   "oper_status",
+		Value: &ic.IntType{Val: int64(operStatus)},
+	}}
+
+	// Use a device specific topic as we are the only adaptercore handling requests for this device
+	replyToTopic := ap.getAdapterTopic()
+	success, result := ap.kafkaICProxy.InvokeRPC(log.WithSpanFromContext(context.Background(), ctx), rpc, &toTopic, &replyToTopic, true, deviceId, args...)
+	logger.Debugw(ctx, "PortsStateUpdate-response", log.Fields{"device-id": deviceId, "success": success})
+	return unPackResponse(ctx, rpc, deviceId, success, result)
+}
+
+func (ap *CoreProxy) DeleteAllPorts(ctx context.Context, deviceId string) error {
+	logger.Debugw(ctx, "DeleteAllPorts", log.Fields{"device-id": deviceId})
+	rpc := "DeleteAllPorts"
+	// Use a device specific topic to send the request.  The adapter handling the device creates a device
+	// specific topic
+	toTopic := ap.getCoreTopic(deviceId)
+	args := make([]*kafka.KVArg, 2)
+	id := &voltha.ID{Id: deviceId}
+
+	args[0] = &kafka.KVArg{
+		Key:   "device_id",
+		Value: id,
+	}
+
+	// Use a device specific topic as we are the only adaptercore handling requests for this device
+	replyToTopic := ap.getAdapterTopic()
+	success, result := ap.kafkaICProxy.InvokeRPC(log.WithSpanFromContext(context.Background(), ctx), rpc, &toTopic, &replyToTopic, true, deviceId, args...)
+	logger.Debugw(ctx, "DeleteAllPorts-response", log.Fields{"device-id": deviceId, "success": success})
+	return unPackResponse(ctx, rpc, deviceId, success, result)
+}
+
+func (ap *CoreProxy) GetDevicePort(ctx context.Context, deviceID string, portNo uint32) (*voltha.Port, error) {
+	logger.Debugw(ctx, "GetDevicePort", log.Fields{"device-id": deviceID})
+	rpc := "GetDevicePort"
+
+	toTopic := ap.getCoreTopic(deviceID)
+	replyToTopic := ap.getAdapterTopic()
+
+	args := []*kafka.KVArg{{
+		Key:   "device_id",
+		Value: &voltha.ID{Id: deviceID},
+	}, {
+		Key:   "port_no",
+		Value: &ic.IntType{Val: int64(portNo)},
+	}}
+
+	success, result := ap.kafkaICProxy.InvokeRPC(log.WithSpanFromContext(context.Background(), ctx), rpc, &toTopic, &replyToTopic, true, deviceID, args...)
+	logger.Debugw(ctx, "GetDevicePort-response", log.Fields{"device-id": deviceID, "success": success})
+
+	if success {
+		port := &voltha.Port{}
+		if err := ptypes.UnmarshalAny(result, port); err != nil {
+			logger.Warnw(ctx, "cannot-unmarshal-response", log.Fields{"error": err})
+			return nil, status.Error(codes.InvalidArgument, err.Error())
+		}
+		return port, nil
+	} else {
+		unpackResult := &ic.Error{}
+		var err error
+		if err = ptypes.UnmarshalAny(result, unpackResult); err != nil {
+			logger.Warnw(ctx, "cannot-unmarshal-response", log.Fields{"error": err})
+		}
+		logger.Debugw(ctx, "GetDevicePort-return", log.Fields{"device-id": deviceID, "success": success, "error": err})
+		// TODO:  Need to get the real error code
+		return nil, status.Error(ICProxyErrorCodeToGrpcErrorCode(ctx, unpackResult.Code), unpackResult.Reason)
+	}
+}
+
+func (ap *CoreProxy) ListDevicePorts(ctx context.Context, deviceID string) ([]*voltha.Port, error) {
+	logger.Debugw(ctx, "ListDevicePorts", log.Fields{"device-id": deviceID})
+	rpc := "ListDevicePorts"
+
+	toTopic := ap.getCoreTopic(deviceID)
+	replyToTopic := ap.getAdapterTopic()
+
+	args := []*kafka.KVArg{{
+		Key:   "device_id",
+		Value: &voltha.ID{Id: deviceID},
+	}}
+
+	success, result := ap.kafkaICProxy.InvokeRPC(log.WithSpanFromContext(context.Background(), ctx), rpc, &toTopic, &replyToTopic, true, deviceID, args...)
+	logger.Debugw(ctx, "ListDevicePorts-response", log.Fields{"device-id": deviceID, "success": success})
+
+	if success {
+		ports := &voltha.Ports{}
+		if err := ptypes.UnmarshalAny(result, ports); err != nil {
+			logger.Warnw(ctx, "cannot-unmarshal-response", log.Fields{"error": err})
+			return nil, status.Error(codes.InvalidArgument, err.Error())
+		}
+		return ports.Items, nil
+	} else {
+		unpackResult := &ic.Error{}
+		var err error
+		if err = ptypes.UnmarshalAny(result, unpackResult); err != nil {
+			logger.Warnw(ctx, "cannot-unmarshal-response", log.Fields{"error": err})
+		}
+		logger.Debugw(ctx, "ListDevicePorts-return", log.Fields{"device-id": deviceID, "success": success, "error": err})
+		// TODO:  Need to get the real error code
+		return nil, status.Error(ICProxyErrorCodeToGrpcErrorCode(ctx, unpackResult.Code), unpackResult.Reason)
+	}
+}
+
+func (ap *CoreProxy) DeviceStateUpdate(ctx context.Context, deviceId string,
+	connStatus voltha.ConnectStatus_Types, operStatus voltha.OperStatus_Types) error {
+	logger.Debugw(ctx, "DeviceStateUpdate", log.Fields{"device-id": deviceId})
+	rpc := "DeviceStateUpdate"
+	// Use a device specific topic to send the request.  The adapter handling the device creates a device
+	// specific topic
+	toTopic := ap.getCoreTopic(deviceId)
+	args := make([]*kafka.KVArg, 3)
+	id := &voltha.ID{Id: deviceId}
+	oStatus := &ic.IntType{Val: int64(operStatus)}
+	cStatus := &ic.IntType{Val: int64(connStatus)}
+
+	args[0] = &kafka.KVArg{
+		Key:   "device_id",
+		Value: id,
+	}
+	args[1] = &kafka.KVArg{
+		Key:   "oper_status",
+		Value: oStatus,
+	}
+	args[2] = &kafka.KVArg{
+		Key:   "connect_status",
+		Value: cStatus,
+	}
+	// Use a device specific topic as we are the only adaptercore handling requests for this device
+	replyToTopic := ap.getAdapterTopic()
+	success, result := ap.kafkaICProxy.InvokeRPC(log.WithSpanFromContext(context.Background(), ctx), rpc, &toTopic, &replyToTopic, true, deviceId, args...)
+	logger.Debugw(ctx, "DeviceStateUpdate-response", log.Fields{"device-id": deviceId, "success": success})
+	return unPackResponse(ctx, rpc, deviceId, success, result)
+}
+
+func (ap *CoreProxy) ChildDeviceDetected(ctx context.Context, parentDeviceId string, parentPortNo int,
+	childDeviceType string, channelId int, vendorId string, serialNumber string, onuId int64) (*voltha.Device, error) {
+	logger.Debugw(ctx, "ChildDeviceDetected", log.Fields{"parent-device-id": parentDeviceId, "channelId": channelId})
+	rpc := "ChildDeviceDetected"
+	// Use a device specific topic to send the request.  The adapter handling the device creates a device
+	// specific topic
+	toTopic := ap.getCoreTopic(parentDeviceId)
+	replyToTopic := ap.getAdapterTopic()
+
+	args := make([]*kafka.KVArg, 7)
+	id := &voltha.ID{Id: parentDeviceId}
+	args[0] = &kafka.KVArg{
+		Key:   "parent_device_id",
+		Value: id,
+	}
+	ppn := &ic.IntType{Val: int64(parentPortNo)}
+	args[1] = &kafka.KVArg{
+		Key:   "parent_port_no",
+		Value: ppn,
+	}
+	cdt := &ic.StrType{Val: childDeviceType}
+	args[2] = &kafka.KVArg{
+		Key:   "child_device_type",
+		Value: cdt,
+	}
+	channel := &ic.IntType{Val: int64(channelId)}
+	args[3] = &kafka.KVArg{
+		Key:   "channel_id",
+		Value: channel,
+	}
+	vId := &ic.StrType{Val: vendorId}
+	args[4] = &kafka.KVArg{
+		Key:   "vendor_id",
+		Value: vId,
+	}
+	sNo := &ic.StrType{Val: serialNumber}
+	args[5] = &kafka.KVArg{
+		Key:   "serial_number",
+		Value: sNo,
+	}
+	oId := &ic.IntType{Val: int64(onuId)}
+	args[6] = &kafka.KVArg{
+		Key:   "onu_id",
+		Value: oId,
+	}
+
+	success, result := ap.kafkaICProxy.InvokeRPC(log.WithSpanFromContext(context.Background(), ctx), rpc, &toTopic, &replyToTopic, true, parentDeviceId, args...)
+	logger.Debugw(ctx, "ChildDeviceDetected-response", log.Fields{"parent-device-id": parentDeviceId, "success": success})
+
+	if success {
+		volthaDevice := &voltha.Device{}
+		if err := ptypes.UnmarshalAny(result, volthaDevice); err != nil {
+			logger.Warnw(ctx, "cannot-unmarshal-response", log.Fields{"error": err})
+			return nil, status.Error(codes.InvalidArgument, err.Error())
+		}
+		return volthaDevice, nil
+	} else {
+		unpackResult := &ic.Error{}
+		var err error
+		if err = ptypes.UnmarshalAny(result, unpackResult); err != nil {
+			logger.Warnw(ctx, "cannot-unmarshal-response", log.Fields{"error": err})
+		}
+		logger.Debugw(ctx, "ChildDeviceDetected-return", log.Fields{"device-id": parentDeviceId, "success": success, "error": err})
+
+		return nil, status.Error(ICProxyErrorCodeToGrpcErrorCode(ctx, unpackResult.Code), unpackResult.Reason)
+	}
+
+}
+
+func (ap *CoreProxy) ChildDevicesLost(ctx context.Context, parentDeviceId string) error {
+	logger.Debugw(ctx, "ChildDevicesLost", log.Fields{"parent-device-id": parentDeviceId})
+	rpc := "ChildDevicesLost"
+	// Use a device specific topic to send the request.  The adapter handling the device creates a device
+	// specific topic
+	toTopic := ap.getCoreTopic(parentDeviceId)
+	replyToTopic := ap.getAdapterTopic()
+
+	args := make([]*kafka.KVArg, 1)
+	id := &voltha.ID{Id: parentDeviceId}
+	args[0] = &kafka.KVArg{
+		Key:   "parent_device_id",
+		Value: id,
+	}
+
+	success, result := ap.kafkaICProxy.InvokeRPC(log.WithSpanFromContext(context.Background(), ctx), rpc, &toTopic, &replyToTopic, true, parentDeviceId, args...)
+	logger.Debugw(ctx, "ChildDevicesLost-response", log.Fields{"parent-device-id": parentDeviceId, "success": success})
+	return unPackResponse(ctx, rpc, parentDeviceId, success, result)
+}
+
+func (ap *CoreProxy) ChildDevicesDetected(ctx context.Context, parentDeviceId string) error {
+	logger.Debugw(ctx, "ChildDevicesDetected", log.Fields{"parent-device-id": parentDeviceId})
+	rpc := "ChildDevicesDetected"
+	// Use a device specific topic to send the request.  The adapter handling the device creates a device
+	// specific topic
+	toTopic := ap.getCoreTopic(parentDeviceId)
+	replyToTopic := ap.getAdapterTopic()
+
+	args := make([]*kafka.KVArg, 1)
+	id := &voltha.ID{Id: parentDeviceId}
+	args[0] = &kafka.KVArg{
+		Key:   "parent_device_id",
+		Value: id,
+	}
+
+	success, result := ap.kafkaICProxy.InvokeRPC(log.WithSpanFromContext(context.Background(), ctx), rpc, &toTopic, &replyToTopic, true, parentDeviceId, args...)
+	logger.Debugw(ctx, "ChildDevicesDetected-response", log.Fields{"parent-device-id": parentDeviceId, "success": success})
+	return unPackResponse(ctx, rpc, parentDeviceId, success, result)
+}
+
+func (ap *CoreProxy) GetDevice(ctx context.Context, parentDeviceId string, deviceId string) (*voltha.Device, error) {
+	logger.Debugw(ctx, "GetDevice", log.Fields{"device-id": deviceId})
+	rpc := "GetDevice"
+
+	toTopic := ap.getCoreTopic(parentDeviceId)
+	replyToTopic := ap.getAdapterTopic()
+
+	args := make([]*kafka.KVArg, 1)
+	id := &voltha.ID{Id: deviceId}
+	args[0] = &kafka.KVArg{
+		Key:   "device_id",
+		Value: id,
+	}
+
+	success, result := ap.kafkaICProxy.InvokeRPC(log.WithSpanFromContext(context.Background(), ctx), rpc, &toTopic, &replyToTopic, true, parentDeviceId, args...)
+	logger.Debugw(ctx, "GetDevice-response", log.Fields{"parent-device-id": parentDeviceId, "success": success})
+
+	if success {
+		volthaDevice := &voltha.Device{}
+		if err := ptypes.UnmarshalAny(result, volthaDevice); err != nil {
+			logger.Warnw(ctx, "cannot-unmarshal-response", log.Fields{"error": err})
+			return nil, status.Error(codes.InvalidArgument, err.Error())
+		}
+		return volthaDevice, nil
+	} else {
+		unpackResult := &ic.Error{}
+		var err error
+		if err = ptypes.UnmarshalAny(result, unpackResult); err != nil {
+			logger.Warnw(ctx, "cannot-unmarshal-response", log.Fields{"error": err})
+		}
+		logger.Debugw(ctx, "GetDevice-return", log.Fields{"parent-device-id": parentDeviceId, "success": success, "error": err})
+		// TODO:  Need to get the real error code
+		return nil, status.Error(ICProxyErrorCodeToGrpcErrorCode(ctx, unpackResult.Code), unpackResult.Reason)
+	}
+}
+
+func (ap *CoreProxy) GetChildDevice(ctx context.Context, parentDeviceId string, kwargs map[string]interface{}) (*voltha.Device, error) {
+	logger.Debugw(ctx, "GetChildDevice", log.Fields{"parent-device-id": parentDeviceId, "kwargs": kwargs})
+	rpc := "GetChildDevice"
+
+	toTopic := ap.getCoreTopic(parentDeviceId)
+	replyToTopic := ap.getAdapterTopic()
+
+	args := make([]*kafka.KVArg, 4)
+	id := &voltha.ID{Id: parentDeviceId}
+	args[0] = &kafka.KVArg{
+		Key:   "device_id",
+		Value: id,
+	}
+
+	var cnt uint8 = 0
+	for k, v := range kwargs {
+		cnt += 1
+		if k == "serial_number" {
+			val := &ic.StrType{Val: v.(string)}
+			args[cnt] = &kafka.KVArg{
+				Key:   k,
+				Value: val,
+			}
+		} else if k == "onu_id" {
+			val := &ic.IntType{Val: int64(v.(uint32))}
+			args[cnt] = &kafka.KVArg{
+				Key:   k,
+				Value: val,
+			}
+		} else if k == "parent_port_no" {
+			val := &ic.IntType{Val: int64(v.(uint32))}
+			args[cnt] = &kafka.KVArg{
+				Key:   k,
+				Value: val,
+			}
+		}
+	}
+
+	success, result := ap.kafkaICProxy.InvokeRPC(log.WithSpanFromContext(context.Background(), ctx), rpc, &toTopic, &replyToTopic, true, parentDeviceId, args...)
+	logger.Debugw(ctx, "GetChildDevice-response", log.Fields{"parent-device-id": parentDeviceId, "success": success})
+
+	if success {
+		volthaDevice := &voltha.Device{}
+		if err := ptypes.UnmarshalAny(result, volthaDevice); err != nil {
+			logger.Warnw(ctx, "cannot-unmarshal-response", log.Fields{"error": err})
+			return nil, status.Error(codes.InvalidArgument, err.Error())
+		}
+		return volthaDevice, nil
+	} else {
+		unpackResult := &ic.Error{}
+		var err error
+		if err = ptypes.UnmarshalAny(result, unpackResult); err != nil {
+			logger.Warnw(ctx, "cannot-unmarshal-response", log.Fields{"error": err})
+		}
+		logger.Debugw(ctx, "GetChildDevice-return", log.Fields{"parent-device-id": parentDeviceId, "success": success, "error": err})
+
+		return nil, status.Error(ICProxyErrorCodeToGrpcErrorCode(ctx, unpackResult.Code), unpackResult.Reason)
+	}
+}
+
+func (ap *CoreProxy) GetChildDevices(ctx context.Context, parentDeviceId string) (*voltha.Devices, error) {
+	logger.Debugw(ctx, "GetChildDevices", log.Fields{"parent-device-id": parentDeviceId})
+	rpc := "GetChildDevices"
+
+	toTopic := ap.getCoreTopic(parentDeviceId)
+	replyToTopic := ap.getAdapterTopic()
+
+	args := make([]*kafka.KVArg, 1)
+	id := &voltha.ID{Id: parentDeviceId}
+	args[0] = &kafka.KVArg{
+		Key:   "device_id",
+		Value: id,
+	}
+
+	success, result := ap.kafkaICProxy.InvokeRPC(log.WithSpanFromContext(context.Background(), ctx), rpc, &toTopic, &replyToTopic, true, parentDeviceId, args...)
+	logger.Debugw(ctx, "GetChildDevices-response", log.Fields{"parent-device-id": parentDeviceId, "success": success})
+
+	if success {
+		volthaDevices := &voltha.Devices{}
+		if err := ptypes.UnmarshalAny(result, volthaDevices); err != nil {
+			logger.Warnw(ctx, "cannot-unmarshal-response", log.Fields{"error": err})
+			return nil, status.Error(codes.InvalidArgument, err.Error())
+		}
+		return volthaDevices, nil
+	} else {
+		unpackResult := &ic.Error{}
+		var err error
+		if err = ptypes.UnmarshalAny(result, unpackResult); err != nil {
+			logger.Warnw(ctx, "cannot-unmarshal-response", log.Fields{"error": err})
+		}
+		logger.Debugw(ctx, "GetChildDevices-return", log.Fields{"parent-device-id": parentDeviceId, "success": success, "error": err})
+
+		return nil, status.Error(ICProxyErrorCodeToGrpcErrorCode(ctx, unpackResult.Code), unpackResult.Reason)
+	}
+}
+
+func (ap *CoreProxy) SendPacketIn(ctx context.Context, deviceId string, port uint32, pktPayload []byte) error {
+	logger.Debugw(ctx, "SendPacketIn", log.Fields{"device-id": deviceId, "port": port, "pktPayload": pktPayload})
+	rpc := "PacketIn"
+	// Use a device specific topic to send the request.  The adapter handling the device creates a device
+	// specific topic
+	toTopic := ap.getCoreTopic(deviceId)
+	replyToTopic := ap.getAdapterTopic()
+
+	args := make([]*kafka.KVArg, 3)
+	id := &voltha.ID{Id: deviceId}
+	args[0] = &kafka.KVArg{
+		Key:   "device_id",
+		Value: id,
+	}
+	portNo := &ic.IntType{Val: int64(port)}
+	args[1] = &kafka.KVArg{
+		Key:   "port",
+		Value: portNo,
+	}
+	pkt := &ic.Packet{Payload: pktPayload}
+	args[2] = &kafka.KVArg{
+		Key:   "packet",
+		Value: pkt,
+	}
+	success, result := ap.kafkaICProxy.InvokeRPC(log.WithSpanFromContext(context.Background(), ctx), rpc, &toTopic, &replyToTopic, true, deviceId, args...)
+	logger.Debugw(ctx, "SendPacketIn-response", log.Fields{"device-id": deviceId, "success": success})
+	return unPackResponse(ctx, rpc, deviceId, success, result)
+}
+
+func (ap *CoreProxy) DeviceReasonUpdate(ctx context.Context, deviceId string, deviceReason string) error {
+	logger.Debugw(ctx, "DeviceReasonUpdate", log.Fields{"device-id": deviceId, "deviceReason": deviceReason})
+	rpc := "DeviceReasonUpdate"
+	// Use a device specific topic to send the request.  The adapter handling the device creates a device
+	// specific topic
+	toTopic := ap.getCoreTopic(deviceId)
+	replyToTopic := ap.getAdapterTopic()
+
+	args := make([]*kafka.KVArg, 2)
+	id := &voltha.ID{Id: deviceId}
+	args[0] = &kafka.KVArg{
+		Key:   "device_id",
+		Value: id,
+	}
+	reason := &ic.StrType{Val: deviceReason}
+	args[1] = &kafka.KVArg{
+		Key:   "device_reason",
+		Value: reason,
+	}
+	success, result := ap.kafkaICProxy.InvokeRPC(log.WithSpanFromContext(context.Background(), ctx), rpc, &toTopic, &replyToTopic, true, deviceId, args...)
+	logger.Debugw(ctx, "DeviceReason-response", log.Fields{"device-id": deviceId, "success": success})
+	return unPackResponse(ctx, rpc, deviceId, success, result)
+}
+
+func (ap *CoreProxy) DevicePMConfigUpdate(ctx context.Context, pmConfigs *voltha.PmConfigs) error {
+	logger.Debugw(ctx, "DevicePMConfigUpdate", log.Fields{"pmConfigs": pmConfigs})
+	rpc := "DevicePMConfigUpdate"
+	// Use a device specific topic to send the request.  The adapter handling the device creates a device
+	// specific topic
+	toTopic := ap.getCoreTopic(pmConfigs.Id)
+	replyToTopic := ap.getAdapterTopic()
+
+	args := make([]*kafka.KVArg, 1)
+	args[0] = &kafka.KVArg{
+		Key:   "device_pm_config",
+		Value: pmConfigs,
+	}
+	success, result := ap.kafkaICProxy.InvokeRPC(log.WithSpanFromContext(context.Background(), ctx), rpc, &toTopic, &replyToTopic, true, pmConfigs.Id, args...)
+	logger.Debugw(ctx, "DevicePMConfigUpdate-response", log.Fields{"pmconfig-device-id": pmConfigs.Id, "success": success})
+	return unPackResponse(ctx, rpc, pmConfigs.Id, success, result)
+}
+
+func (ap *CoreProxy) ReconcileChildDevices(ctx context.Context, parentDeviceId string) error {
+	logger.Debugw(ctx, "ReconcileChildDevices", log.Fields{"parent-device-id": parentDeviceId})
+	rpc := "ReconcileChildDevices"
+	// Use a device specific topic to send the request.  The adapter handling the device creates a device
+	// specific topic
+	toTopic := ap.getCoreTopic(parentDeviceId)
+	replyToTopic := ap.getAdapterTopic()
+
+	args := []*kafka.KVArg{
+		{Key: "parent_device_id", Value: &voltha.ID{Id: parentDeviceId}},
+	}
+
+	success, result := ap.kafkaICProxy.InvokeRPC(log.WithSpanFromContext(context.Background(), ctx), rpc, &toTopic, &replyToTopic, true, parentDeviceId, args...)
+	logger.Debugw(ctx, "ReconcileChildDevices-response", log.Fields{"parent-device-id": parentDeviceId, "success": success})
+	return unPackResponse(ctx, rpc, parentDeviceId, success, result)
+}
+
+func (ap *CoreProxy) PortStateUpdate(ctx context.Context, deviceId string, pType voltha.Port_PortType, portNum uint32,
+	operStatus voltha.OperStatus_Types) error {
+	logger.Debugw(ctx, "PortStateUpdate", log.Fields{"device-id": deviceId, "portType": pType, "portNo": portNum, "operation_status": operStatus})
+	rpc := "PortStateUpdate"
+	// Use a device specific topic to send the request.  The adapter handling the device creates a device
+	// specific topic
+	toTopic := ap.getCoreTopic(deviceId)
+	args := make([]*kafka.KVArg, 4)
+	deviceID := &voltha.ID{Id: deviceId}
+	portNo := &ic.IntType{Val: int64(portNum)}
+	portType := &ic.IntType{Val: int64(pType)}
+	oStatus := &ic.IntType{Val: int64(operStatus)}
+
+	args[0] = &kafka.KVArg{
+		Key:   "device_id",
+		Value: deviceID,
+	}
+	args[1] = &kafka.KVArg{
+		Key:   "oper_status",
+		Value: oStatus,
+	}
+	args[2] = &kafka.KVArg{
+		Key:   "port_type",
+		Value: portType,
+	}
+	args[3] = &kafka.KVArg{
+		Key:   "port_no",
+		Value: portNo,
+	}
+
+	// Use a device specific topic as we are the only adaptercore handling requests for this device
+	replyToTopic := ap.getAdapterTopic()
+	success, result := ap.kafkaICProxy.InvokeRPC(log.WithSpanFromContext(context.Background(), ctx), rpc, &toTopic, &replyToTopic, true, deviceId, args...)
+	logger.Debugw(ctx, "PortStateUpdate-response", log.Fields{"device-id": deviceId, "success": success})
+	return unPackResponse(ctx, rpc, deviceId, success, result)
+}
diff --git a/vendor/github.com/opencord/voltha-lib-go/v4/pkg/adapters/common/events_proxy.go b/vendor/github.com/opencord/voltha-lib-go/v4/pkg/adapters/common/events_proxy.go
new file mode 100644
index 0000000..b16c1ae
--- /dev/null
+++ b/vendor/github.com/opencord/voltha-lib-go/v4/pkg/adapters/common/events_proxy.go
@@ -0,0 +1,161 @@
+/*
+ * Copyright 2018-present Open Networking Foundation
+
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+
+ * http://www.apache.org/licenses/LICENSE-2.0
+
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package common
+
+import (
+	"context"
+	"errors"
+	"fmt"
+	"strconv"
+	"strings"
+	"time"
+
+	"github.com/golang/protobuf/ptypes"
+	"github.com/opencord/voltha-lib-go/v4/pkg/adapters/adapterif"
+	"github.com/opencord/voltha-lib-go/v4/pkg/kafka"
+	"github.com/opencord/voltha-lib-go/v4/pkg/log"
+	"github.com/opencord/voltha-protos/v4/go/voltha"
+)
+
+type EventProxy struct {
+	kafkaClient kafka.Client
+	eventTopic  kafka.Topic
+}
+
+func NewEventProxy(opts ...EventProxyOption) *EventProxy {
+	var proxy EventProxy
+	for _, option := range opts {
+		option(&proxy)
+	}
+	return &proxy
+}
+
+type EventProxyOption func(*EventProxy)
+
+func MsgClient(client kafka.Client) EventProxyOption {
+	return func(args *EventProxy) {
+		args.kafkaClient = client
+	}
+}
+
+func MsgTopic(topic kafka.Topic) EventProxyOption {
+	return func(args *EventProxy) {
+		args.eventTopic = topic
+	}
+}
+
+func (ep *EventProxy) formatId(eventName string) string {
+	return fmt.Sprintf("Voltha.openolt.%s.%s", eventName, strconv.FormatInt(time.Now().UnixNano(), 10))
+}
+
+func (ep *EventProxy) getEventHeader(eventName string,
+	category adapterif.EventCategory,
+	subCategory adapterif.EventSubCategory,
+	eventType adapterif.EventType,
+	raisedTs int64) (*voltha.EventHeader, error) {
+	var header voltha.EventHeader
+	if strings.Contains(eventName, "_") {
+		eventName = strings.Join(strings.Split(eventName, "_")[:len(strings.Split(eventName, "_"))-2], "_")
+	} else {
+		eventName = "UNKNOWN_EVENT"
+	}
+	/* Populating event header */
+	header.Id = ep.formatId(eventName)
+	header.Category = category
+	header.SubCategory = subCategory
+	header.Type = eventType
+	header.TypeVersion = adapterif.EventTypeVersion
+
+	// raisedTs is in nanoseconds
+	timestamp, err := ptypes.TimestampProto(time.Unix(0, raisedTs))
+	if err != nil {
+		return nil, err
+	}
+	header.RaisedTs = timestamp
+
+	timestamp, err = ptypes.TimestampProto(time.Now())
+	if err != nil {
+		return nil, err
+	}
+	header.ReportedTs = timestamp
+
+	return &header, nil
+}
+
+/* Send out device events*/
+func (ep *EventProxy) SendDeviceEvent(ctx context.Context, deviceEvent *voltha.DeviceEvent, category adapterif.EventCategory, subCategory adapterif.EventSubCategory, raisedTs int64) error {
+	if deviceEvent == nil {
+		logger.Error(ctx, "Recieved empty device event")
+		return errors.New("Device event nil")
+	}
+	var event voltha.Event
+	var de voltha.Event_DeviceEvent
+	var err error
+	de.DeviceEvent = deviceEvent
+	if event.Header, err = ep.getEventHeader(deviceEvent.DeviceEventName, category, subCategory, voltha.EventType_DEVICE_EVENT, raisedTs); err != nil {
+		return err
+	}
+	event.EventType = &de
+	if err := ep.sendEvent(ctx, &event); err != nil {
+		logger.Errorw(ctx, "Failed to send device event to KAFKA bus", log.Fields{"device-event": deviceEvent})
+		return err
+	}
+	logger.Infow(ctx, "Successfully sent device event KAFKA", log.Fields{"Id": event.Header.Id, "Category": event.Header.Category,
+		"SubCategory": event.Header.SubCategory, "Type": event.Header.Type, "TypeVersion": event.Header.TypeVersion,
+		"ReportedTs": event.Header.ReportedTs, "ResourceId": deviceEvent.ResourceId, "Context": deviceEvent.Context,
+		"DeviceEventName": deviceEvent.DeviceEventName})
+
+	return nil
+
+}
+
+// SendKpiEvent is to send kpi events to voltha.event topic
+func (ep *EventProxy) SendKpiEvent(ctx context.Context, id string, kpiEvent *voltha.KpiEvent2, category adapterif.EventCategory, subCategory adapterif.EventSubCategory, raisedTs int64) error {
+	if kpiEvent == nil {
+		logger.Error(ctx, "Recieved empty kpi event")
+		return errors.New("KPI event nil")
+	}
+	var event voltha.Event
+	var de voltha.Event_KpiEvent2
+	var err error
+	de.KpiEvent2 = kpiEvent
+	if event.Header, err = ep.getEventHeader(id, category, subCategory, voltha.EventType_KPI_EVENT2, raisedTs); err != nil {
+		return err
+	}
+	event.EventType = &de
+	if err := ep.sendEvent(ctx, &event); err != nil {
+		logger.Errorw(ctx, "Failed to send kpi event to KAFKA bus", log.Fields{"device-event": kpiEvent})
+		return err
+	}
+	logger.Infow(ctx, "Successfully sent kpi event to KAFKA", log.Fields{"Id": event.Header.Id, "Category": event.Header.Category,
+		"SubCategory": event.Header.SubCategory, "Type": event.Header.Type, "TypeVersion": event.Header.TypeVersion,
+		"ReportedTs": event.Header.ReportedTs, "KpiEventName": "STATS_EVENT"})
+
+	return nil
+
+}
+
+/* TODO: Send out KPI events*/
+
+func (ep *EventProxy) sendEvent(ctx context.Context, event *voltha.Event) error {
+	if err := ep.kafkaClient.Send(ctx, event, &ep.eventTopic); err != nil {
+		return err
+	}
+	logger.Debugw(ctx, "Sent event to kafka", log.Fields{"event": event})
+
+	return nil
+}
diff --git a/vendor/github.com/opencord/voltha-lib-go/v4/pkg/adapters/common/performance_metrics.go b/vendor/github.com/opencord/voltha-lib-go/v4/pkg/adapters/common/performance_metrics.go
new file mode 100644
index 0000000..6705c72
--- /dev/null
+++ b/vendor/github.com/opencord/voltha-lib-go/v4/pkg/adapters/common/performance_metrics.go
@@ -0,0 +1,83 @@
+/*
+ * Copyright 2019-present Open Networking Foundation
+
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+
+ * http://www.apache.org/licenses/LICENSE-2.0
+
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package common
+
+import (
+	"github.com/opencord/voltha-protos/v4/go/voltha"
+)
+
+type PmMetrics struct {
+	deviceId          string
+	frequency         uint32
+	grouped           bool
+	frequencyOverride bool
+	metrics           map[string]*voltha.PmConfig
+}
+
+type PmMetricsOption func(*PmMetrics)
+
+func Frequency(frequency uint32) PmMetricsOption {
+	return func(args *PmMetrics) {
+		args.frequency = frequency
+	}
+}
+
+func Grouped(grouped bool) PmMetricsOption {
+	return func(args *PmMetrics) {
+		args.grouped = grouped
+	}
+}
+
+func FrequencyOverride(frequencyOverride bool) PmMetricsOption {
+	return func(args *PmMetrics) {
+		args.frequencyOverride = frequencyOverride
+	}
+}
+
+func Metrics(pmNames []string) PmMetricsOption {
+	return func(args *PmMetrics) {
+		args.metrics = make(map[string]*voltha.PmConfig)
+		for _, name := range pmNames {
+			args.metrics[name] = &voltha.PmConfig{
+				Name:    name,
+				Type:    voltha.PmConfig_COUNTER,
+				Enabled: true,
+			}
+		}
+	}
+}
+
+func NewPmMetrics(deviceId string, opts ...PmMetricsOption) *PmMetrics {
+	pm := &PmMetrics{deviceId: deviceId}
+	for _, option := range opts {
+		option(pm)
+	}
+	return pm
+}
+
+func (pm *PmMetrics) ToPmConfigs() *voltha.PmConfigs {
+	pmConfigs := &voltha.PmConfigs{
+		Id:           pm.deviceId,
+		DefaultFreq:  pm.frequency,
+		Grouped:      pm.grouped,
+		FreqOverride: pm.frequencyOverride,
+	}
+	for _, v := range pm.metrics {
+		pmConfigs.Metrics = append(pmConfigs.Metrics, &voltha.PmConfig{Name: v.Name, Type: v.Type, Enabled: v.Enabled})
+	}
+	return pmConfigs
+}
diff --git a/vendor/github.com/opencord/voltha-lib-go/v4/pkg/adapters/common/request_handler.go b/vendor/github.com/opencord/voltha-lib-go/v4/pkg/adapters/common/request_handler.go
new file mode 100644
index 0000000..50b9195
--- /dev/null
+++ b/vendor/github.com/opencord/voltha-lib-go/v4/pkg/adapters/common/request_handler.go
@@ -0,0 +1,735 @@
+/*
+ * Copyright 2018-present Open Networking Foundation
+
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+
+ * http://www.apache.org/licenses/LICENSE-2.0
+
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package common
+
+import (
+	"context"
+	"errors"
+
+	"github.com/golang/protobuf/ptypes"
+	"github.com/golang/protobuf/ptypes/empty"
+	"github.com/opencord/voltha-lib-go/v4/pkg/adapters"
+	"github.com/opencord/voltha-lib-go/v4/pkg/adapters/adapterif"
+	"github.com/opencord/voltha-lib-go/v4/pkg/kafka"
+	"github.com/opencord/voltha-lib-go/v4/pkg/log"
+	ic "github.com/opencord/voltha-protos/v4/go/inter_container"
+	"github.com/opencord/voltha-protos/v4/go/openflow_13"
+	"github.com/opencord/voltha-protos/v4/go/voltha"
+	"google.golang.org/grpc/codes"
+	"google.golang.org/grpc/status"
+)
+
+type RequestHandlerProxy struct {
+	TestMode       bool
+	coreInstanceId string
+	adapter        adapters.IAdapter
+	coreProxy      adapterif.CoreProxy
+}
+
+func NewRequestHandlerProxy(coreInstanceId string, iadapter adapters.IAdapter, cProxy adapterif.CoreProxy) *RequestHandlerProxy {
+	var proxy RequestHandlerProxy
+	proxy.coreInstanceId = coreInstanceId
+	proxy.adapter = iadapter
+	proxy.coreProxy = cProxy
+	return &proxy
+}
+
+func (rhp *RequestHandlerProxy) Adapter_descriptor() (*empty.Empty, error) {
+	return new(empty.Empty), nil
+}
+
+func (rhp *RequestHandlerProxy) Device_types() (*voltha.DeviceTypes, error) {
+	return nil, nil
+}
+
+func (rhp *RequestHandlerProxy) Health() (*voltha.HealthStatus, error) {
+	return nil, nil
+}
+
+func (rhp *RequestHandlerProxy) Adopt_device(ctx context.Context, args []*ic.Argument) (*empty.Empty, error) {
+	if len(args) < 3 {
+		logger.Warn(ctx, "invalid-number-of-args", log.Fields{"args": args})
+		err := errors.New("invalid-number-of-args")
+		return nil, err
+	}
+	device := &voltha.Device{}
+	transactionID := &ic.StrType{}
+	fromTopic := &ic.StrType{}
+	for _, arg := range args {
+		switch arg.Key {
+		case "device":
+			if err := ptypes.UnmarshalAny(arg.Value, device); err != nil {
+				logger.Warnw(ctx, "cannot-unmarshal-device", log.Fields{"error": err})
+				return nil, err
+			}
+		case kafka.TransactionKey:
+			if err := ptypes.UnmarshalAny(arg.Value, transactionID); err != nil {
+				logger.Warnw(ctx, "cannot-unmarshal-transaction-ID", log.Fields{"error": err})
+				return nil, err
+			}
+		case kafka.FromTopic:
+			if err := ptypes.UnmarshalAny(arg.Value, fromTopic); err != nil {
+				logger.Warnw(ctx, "cannot-unmarshal-from-topic", log.Fields{"error": err})
+				return nil, err
+			}
+		}
+	}
+
+	logger.Debugw(ctx, "Adopt_device", log.Fields{"deviceId": device.Id})
+
+	//Update the core reference for that device
+	rhp.coreProxy.UpdateCoreReference(device.Id, fromTopic.Val)
+
+	//Invoke the adopt device on the adapter
+	if err := rhp.adapter.Adopt_device(ctx, device); err != nil {
+		return nil, status.Errorf(codes.NotFound, "%s", err.Error())
+	}
+
+	return new(empty.Empty), nil
+}
+
+func (rhp *RequestHandlerProxy) Reconcile_device(ctx context.Context, args []*ic.Argument) (*empty.Empty, error) {
+	if len(args) < 3 {
+		logger.Warn(ctx, "invalid-number-of-args", log.Fields{"args": args})
+		err := errors.New("invalid-number-of-args")
+		return nil, err
+	}
+
+	device := &voltha.Device{}
+	transactionID := &ic.StrType{}
+	fromTopic := &ic.StrType{}
+	for _, arg := range args {
+		switch arg.Key {
+		case "device":
+			if err := ptypes.UnmarshalAny(arg.Value, device); err != nil {
+				logger.Warnw(ctx, "cannot-unmarshal-device", log.Fields{"error": err})
+				return nil, err
+			}
+		case kafka.TransactionKey:
+			if err := ptypes.UnmarshalAny(arg.Value, transactionID); err != nil {
+				logger.Warnw(ctx, "cannot-unmarshal-transaction-ID", log.Fields{"error": err})
+				return nil, err
+			}
+		case kafka.FromTopic:
+			if err := ptypes.UnmarshalAny(arg.Value, fromTopic); err != nil {
+				logger.Warnw(ctx, "cannot-unmarshal-from-topic", log.Fields{"error": err})
+				return nil, err
+			}
+		}
+	}
+	//Update the core reference for that device
+	rhp.coreProxy.UpdateCoreReference(device.Id, fromTopic.Val)
+
+	//Invoke the reconcile device API on the adapter
+	if err := rhp.adapter.Reconcile_device(ctx, device); err != nil {
+		return nil, status.Errorf(codes.NotFound, "%s", err.Error())
+	}
+	return new(empty.Empty), nil
+}
+
+func (rhp *RequestHandlerProxy) Abandon_device(args []*ic.Argument) (*empty.Empty, error) {
+	return new(empty.Empty), nil
+}
+
+func (rhp *RequestHandlerProxy) Disable_device(ctx context.Context, args []*ic.Argument) (*empty.Empty, error) {
+	if len(args) < 3 {
+		logger.Warn(ctx, "invalid-number-of-args", log.Fields{"args": args})
+		err := errors.New("invalid-number-of-args")
+		return nil, err
+	}
+
+	device := &voltha.Device{}
+	transactionID := &ic.StrType{}
+	fromTopic := &ic.StrType{}
+	for _, arg := range args {
+		switch arg.Key {
+		case "device":
+			if err := ptypes.UnmarshalAny(arg.Value, device); err != nil {
+				logger.Warnw(ctx, "cannot-unmarshal-device", log.Fields{"error": err})
+				return nil, err
+			}
+		case kafka.TransactionKey:
+			if err := ptypes.UnmarshalAny(arg.Value, transactionID); err != nil {
+				logger.Warnw(ctx, "cannot-unmarshal-transaction-ID", log.Fields{"error": err})
+				return nil, err
+			}
+		case kafka.FromTopic:
+			if err := ptypes.UnmarshalAny(arg.Value, fromTopic); err != nil {
+				logger.Warnw(ctx, "cannot-unmarshal-from-topic", log.Fields{"error": err})
+				return nil, err
+			}
+		}
+	}
+	//Update the core reference for that device
+	rhp.coreProxy.UpdateCoreReference(device.Id, fromTopic.Val)
+	//Invoke the Disable_device API on the adapter
+	if err := rhp.adapter.Disable_device(ctx, device); err != nil {
+		return nil, status.Errorf(codes.NotFound, "%s", err.Error())
+	}
+	return new(empty.Empty), nil
+}
+
+func (rhp *RequestHandlerProxy) Reenable_device(ctx context.Context, args []*ic.Argument) (*empty.Empty, error) {
+	if len(args) < 3 {
+		logger.Warn(ctx, "invalid-number-of-args", log.Fields{"args": args})
+		err := errors.New("invalid-number-of-args")
+		return nil, err
+	}
+
+	device := &voltha.Device{}
+	transactionID := &ic.StrType{}
+	fromTopic := &ic.StrType{}
+	for _, arg := range args {
+		switch arg.Key {
+		case "device":
+			if err := ptypes.UnmarshalAny(arg.Value, device); err != nil {
+				logger.Warnw(ctx, "cannot-unmarshal-device", log.Fields{"error": err})
+				return nil, err
+			}
+		case kafka.TransactionKey:
+			if err := ptypes.UnmarshalAny(arg.Value, transactionID); err != nil {
+				logger.Warnw(ctx, "cannot-unmarshal-transaction-ID", log.Fields{"error": err})
+				return nil, err
+			}
+		case kafka.FromTopic:
+			if err := ptypes.UnmarshalAny(arg.Value, fromTopic); err != nil {
+				logger.Warnw(ctx, "cannot-unmarshal-from-topic", log.Fields{"error": err})
+				return nil, err
+			}
+		}
+	}
+	//Update the core reference for that device
+	rhp.coreProxy.UpdateCoreReference(device.Id, fromTopic.Val)
+	//Invoke the Reenable_device API on the adapter
+	if err := rhp.adapter.Reenable_device(ctx, device); err != nil {
+		return nil, status.Errorf(codes.NotFound, "%s", err.Error())
+	}
+	return new(empty.Empty), nil
+}
+
+func (rhp *RequestHandlerProxy) Reboot_device(ctx context.Context, args []*ic.Argument) (*empty.Empty, error) {
+	if len(args) < 3 {
+		logger.Warn(ctx, "invalid-number-of-args", log.Fields{"args": args})
+		err := errors.New("invalid-number-of-args")
+		return nil, err
+	}
+
+	device := &voltha.Device{}
+	transactionID := &ic.StrType{}
+	fromTopic := &ic.StrType{}
+	for _, arg := range args {
+		switch arg.Key {
+		case "device":
+			if err := ptypes.UnmarshalAny(arg.Value, device); err != nil {
+				logger.Warnw(ctx, "cannot-unmarshal-device", log.Fields{"error": err})
+				return nil, err
+			}
+		case kafka.TransactionKey:
+			if err := ptypes.UnmarshalAny(arg.Value, transactionID); err != nil {
+				logger.Warnw(ctx, "cannot-unmarshal-transaction-ID", log.Fields{"error": err})
+				return nil, err
+			}
+		case kafka.FromTopic:
+			if err := ptypes.UnmarshalAny(arg.Value, fromTopic); err != nil {
+				logger.Warnw(ctx, "cannot-unmarshal-from-topic", log.Fields{"error": err})
+				return nil, err
+			}
+		}
+	}
+	//Update the core reference for that device
+	rhp.coreProxy.UpdateCoreReference(device.Id, fromTopic.Val)
+	//Invoke the Reboot_device API on the adapter
+	if err := rhp.adapter.Reboot_device(ctx, device); err != nil {
+		return nil, status.Errorf(codes.NotFound, "%s", err.Error())
+	}
+	return new(empty.Empty), nil
+
+}
+
+func (rhp *RequestHandlerProxy) Self_test_device(args []*ic.Argument) (*empty.Empty, error) {
+	return new(empty.Empty), nil
+}
+
+func (rhp *RequestHandlerProxy) Delete_device(ctx context.Context, args []*ic.Argument) (*empty.Empty, error) {
+	if len(args) < 3 {
+		logger.Warn(ctx, "invalid-number-of-args", log.Fields{"args": args})
+		err := errors.New("invalid-number-of-args")
+		return nil, err
+	}
+
+	device := &voltha.Device{}
+	transactionID := &ic.StrType{}
+	fromTopic := &ic.StrType{}
+	for _, arg := range args {
+		switch arg.Key {
+		case "device":
+			if err := ptypes.UnmarshalAny(arg.Value, device); err != nil {
+				logger.Warnw(ctx, "cannot-unmarshal-device", log.Fields{"error": err})
+				return nil, err
+			}
+		case kafka.TransactionKey:
+			if err := ptypes.UnmarshalAny(arg.Value, transactionID); err != nil {
+				logger.Warnw(ctx, "cannot-unmarshal-transaction-ID", log.Fields{"error": err})
+				return nil, err
+			}
+		case kafka.FromTopic:
+			if err := ptypes.UnmarshalAny(arg.Value, fromTopic); err != nil {
+				logger.Warnw(ctx, "cannot-unmarshal-from-topic", log.Fields{"error": err})
+				return nil, err
+			}
+		}
+	}
+	//Update the core reference for that device
+	rhp.coreProxy.UpdateCoreReference(device.Id, fromTopic.Val)
+	//Invoke the delete_device API on the adapter
+	if err := rhp.adapter.Delete_device(ctx, device); err != nil {
+		return nil, status.Errorf(codes.NotFound, "%s", err.Error())
+	}
+	return new(empty.Empty), nil
+}
+
+func (rhp *RequestHandlerProxy) Get_device_details(args []*ic.Argument) (*empty.Empty, error) {
+	return new(empty.Empty), nil
+}
+
+func (rhp *RequestHandlerProxy) Update_flows_bulk(ctx context.Context, args []*ic.Argument) (*empty.Empty, error) {
+	logger.Debug(ctx, "Update_flows_bulk")
+	if len(args) < 5 {
+		logger.Warn(ctx, "Update_flows_bulk-invalid-number-of-args", log.Fields{"args": args})
+		err := errors.New("invalid-number-of-args")
+		return nil, err
+	}
+	device := &voltha.Device{}
+	transactionID := &ic.StrType{}
+	flows := &voltha.Flows{}
+	flowMetadata := &voltha.FlowMetadata{}
+	groups := &voltha.FlowGroups{}
+	for _, arg := range args {
+		switch arg.Key {
+		case "device":
+			if err := ptypes.UnmarshalAny(arg.Value, device); err != nil {
+				logger.Warnw(ctx, "cannot-unmarshal-device", log.Fields{"error": err})
+				return nil, err
+			}
+		case "flows":
+			if err := ptypes.UnmarshalAny(arg.Value, flows); err != nil {
+				logger.Warnw(ctx, "cannot-unmarshal-flows", log.Fields{"error": err})
+				return nil, err
+			}
+		case "groups":
+			if err := ptypes.UnmarshalAny(arg.Value, groups); err != nil {
+				logger.Warnw(ctx, "cannot-unmarshal-groups", log.Fields{"error": err})
+				return nil, err
+			}
+		case "flow_metadata":
+			if err := ptypes.UnmarshalAny(arg.Value, flowMetadata); err != nil {
+				logger.Warnw(ctx, "cannot-unmarshal-metadata", log.Fields{"error": err})
+				return nil, err
+			}
+		case kafka.TransactionKey:
+			if err := ptypes.UnmarshalAny(arg.Value, transactionID); err != nil {
+				logger.Warnw(ctx, "cannot-unmarshal-transaction-ID", log.Fields{"error": err})
+				return nil, err
+			}
+		}
+	}
+	logger.Debugw(ctx, "Update_flows_bulk", log.Fields{"flows": flows, "groups": groups})
+	//Invoke the bulk flow update API of the adapter
+	if err := rhp.adapter.Update_flows_bulk(ctx, device, flows, groups, flowMetadata); err != nil {
+		return nil, status.Errorf(codes.NotFound, "%s", err.Error())
+	}
+	return new(empty.Empty), nil
+}
+
+func (rhp *RequestHandlerProxy) Update_flows_incrementally(ctx context.Context, args []*ic.Argument) (*empty.Empty, error) {
+	logger.Debug(ctx, "Update_flows_incrementally")
+	if len(args) < 5 {
+		logger.Warn(ctx, "Update_flows_incrementally-invalid-number-of-args", log.Fields{"args": args})
+		err := errors.New("invalid-number-of-args")
+		return nil, err
+	}
+	device := &voltha.Device{}
+	transactionID := &ic.StrType{}
+	flows := &openflow_13.FlowChanges{}
+	flowMetadata := &voltha.FlowMetadata{}
+	groups := &openflow_13.FlowGroupChanges{}
+	for _, arg := range args {
+		switch arg.Key {
+		case "device":
+			if err := ptypes.UnmarshalAny(arg.Value, device); err != nil {
+				logger.Warnw(ctx, "cannot-unmarshal-device", log.Fields{"error": err})
+				return nil, err
+			}
+		case "flow_changes":
+			if err := ptypes.UnmarshalAny(arg.Value, flows); err != nil {
+				logger.Warnw(ctx, "cannot-unmarshal-flows", log.Fields{"error": err})
+				return nil, err
+			}
+		case "group_changes":
+			if err := ptypes.UnmarshalAny(arg.Value, groups); err != nil {
+				logger.Warnw(ctx, "cannot-unmarshal-groups", log.Fields{"error": err})
+				return nil, err
+			}
+		case "flow_metadata":
+			if err := ptypes.UnmarshalAny(arg.Value, flowMetadata); err != nil {
+				logger.Warnw(ctx, "cannot-unmarshal-metadata", log.Fields{"error": err})
+				return nil, err
+			}
+		case kafka.TransactionKey:
+			if err := ptypes.UnmarshalAny(arg.Value, transactionID); err != nil {
+				logger.Warnw(ctx, "cannot-unmarshal-transaction-ID", log.Fields{"error": err})
+				return nil, err
+			}
+		}
+	}
+	logger.Debugw(ctx, "Update_flows_incrementally", log.Fields{"flows": flows, "groups": groups})
+	//Invoke the incremental flow update API of the adapter
+	if err := rhp.adapter.Update_flows_incrementally(ctx, device, flows, groups, flowMetadata); err != nil {
+		return nil, status.Errorf(codes.NotFound, "%s", err.Error())
+	}
+	return new(empty.Empty), nil
+}
+
+func (rhp *RequestHandlerProxy) Update_pm_config(ctx context.Context, args []*ic.Argument) (*empty.Empty, error) {
+	logger.Debug(ctx, "Update_pm_config")
+	if len(args) < 2 {
+		logger.Warn(ctx, "Update_pm_config-invalid-number-of-args", log.Fields{"args": args})
+		err := errors.New("invalid-number-of-args")
+		return nil, err
+	}
+	device := &voltha.Device{}
+	transactionID := &ic.StrType{}
+	pmConfigs := &voltha.PmConfigs{}
+	for _, arg := range args {
+		switch arg.Key {
+		case "device":
+			if err := ptypes.UnmarshalAny(arg.Value, device); err != nil {
+				logger.Warnw(ctx, "cannot-unmarshal-device", log.Fields{"error": err})
+				return nil, err
+			}
+		case "pm_configs":
+			if err := ptypes.UnmarshalAny(arg.Value, pmConfigs); err != nil {
+				logger.Warnw(ctx, "cannot-unmarshal-pm-configs", log.Fields{"error": err})
+				return nil, err
+			}
+		case kafka.TransactionKey:
+			if err := ptypes.UnmarshalAny(arg.Value, transactionID); err != nil {
+				logger.Warnw(ctx, "cannot-unmarshal-transaction-ID", log.Fields{"error": err})
+				return nil, err
+			}
+		}
+	}
+	logger.Debugw(ctx, "Update_pm_config", log.Fields{"device-id": device.Id, "pmConfigs": pmConfigs})
+	//Invoke the pm config update API of the adapter
+	if err := rhp.adapter.Update_pm_config(ctx, device, pmConfigs); err != nil {
+		return nil, status.Errorf(codes.NotFound, "%s", err.Error())
+	}
+	return new(empty.Empty), nil
+}
+
+func (rhp *RequestHandlerProxy) Receive_packet_out(ctx context.Context, args []*ic.Argument) (*empty.Empty, error) {
+	logger.Debugw(ctx, "Receive_packet_out", log.Fields{"args": args})
+	if len(args) < 3 {
+		logger.Warn(ctx, "Receive_packet_out-invalid-number-of-args", log.Fields{"args": args})
+		err := errors.New("invalid-number-of-args")
+		return nil, err
+	}
+	deviceId := &ic.StrType{}
+	egressPort := &ic.IntType{}
+	packet := &openflow_13.OfpPacketOut{}
+	transactionID := &ic.StrType{}
+	for _, arg := range args {
+		switch arg.Key {
+		case "deviceId":
+			if err := ptypes.UnmarshalAny(arg.Value, deviceId); err != nil {
+				logger.Warnw(ctx, "cannot-unmarshal-device-id", log.Fields{"error": err})
+				return nil, err
+			}
+		case "outPort":
+			if err := ptypes.UnmarshalAny(arg.Value, egressPort); err != nil {
+				logger.Warnw(ctx, "cannot-unmarshal-egressPort", log.Fields{"error": err})
+				return nil, err
+			}
+		case "packet":
+			if err := ptypes.UnmarshalAny(arg.Value, packet); err != nil {
+				logger.Warnw(ctx, "cannot-unmarshal-packet", log.Fields{"error": err})
+				return nil, err
+			}
+		case kafka.TransactionKey:
+			if err := ptypes.UnmarshalAny(arg.Value, transactionID); err != nil {
+				logger.Warnw(ctx, "cannot-unmarshal-transaction-ID", log.Fields{"error": err})
+				return nil, err
+			}
+		}
+	}
+	logger.Debugw(ctx, "Receive_packet_out", log.Fields{"device-id": deviceId.Val, "outPort": egressPort, "packet": packet})
+	//Invoke the adopt device on the adapter
+	if err := rhp.adapter.Receive_packet_out(ctx, deviceId.Val, int(egressPort.Val), packet); err != nil {
+		return nil, status.Errorf(codes.NotFound, "%s", err.Error())
+	}
+	return new(empty.Empty), nil
+}
+
+func (rhp *RequestHandlerProxy) Suppress_alarm(args []*ic.Argument) (*empty.Empty, error) {
+	return new(empty.Empty), nil
+}
+
+func (rhp *RequestHandlerProxy) Unsuppress_alarm(args []*ic.Argument) (*empty.Empty, error) {
+	return new(empty.Empty), nil
+}
+
+func (rhp *RequestHandlerProxy) Get_ofp_device_info(ctx context.Context, args []*ic.Argument) (*ic.SwitchCapability, error) {
+	if len(args) < 2 {
+		logger.Warn(ctx, "invalid-number-of-args", log.Fields{"args": args})
+		err := errors.New("invalid-number-of-args")
+		return nil, err
+	}
+	device := &voltha.Device{}
+	transactionID := &ic.StrType{}
+	for _, arg := range args {
+		switch arg.Key {
+		case "device":
+			if err := ptypes.UnmarshalAny(arg.Value, device); err != nil {
+				logger.Warnw(ctx, "cannot-unmarshal-device", log.Fields{"error": err})
+				return nil, err
+			}
+		case kafka.TransactionKey:
+			if err := ptypes.UnmarshalAny(arg.Value, transactionID); err != nil {
+				logger.Warnw(ctx, "cannot-unmarshal-transaction-ID", log.Fields{"error": err})
+				return nil, err
+			}
+		}
+	}
+
+	logger.Debugw(ctx, "Get_ofp_device_info", log.Fields{"device-id": device.Id})
+
+	var cap *ic.SwitchCapability
+	var err error
+	if cap, err = rhp.adapter.Get_ofp_device_info(ctx, device); err != nil {
+		return nil, status.Errorf(codes.NotFound, "%s", err.Error())
+	}
+	logger.Debugw(ctx, "Get_ofp_device_info", log.Fields{"cap": cap})
+	return cap, nil
+}
+
+func (rhp *RequestHandlerProxy) Process_inter_adapter_message(ctx context.Context, args []*ic.Argument) (*empty.Empty, error) {
+	if len(args) < 2 {
+		logger.Warn(ctx, "invalid-number-of-args", log.Fields{"args": args})
+		err := errors.New("invalid-number-of-args")
+		return nil, err
+	}
+	iaMsg := &ic.InterAdapterMessage{}
+	transactionID := &ic.StrType{}
+	for _, arg := range args {
+		switch arg.Key {
+		case "msg":
+			if err := ptypes.UnmarshalAny(arg.Value, iaMsg); err != nil {
+				logger.Warnw(ctx, "cannot-unmarshal-device", log.Fields{"error": err})
+				return nil, err
+			}
+		case kafka.TransactionKey:
+			if err := ptypes.UnmarshalAny(arg.Value, transactionID); err != nil {
+				logger.Warnw(ctx, "cannot-unmarshal-transaction-ID", log.Fields{"error": err})
+				return nil, err
+			}
+		}
+	}
+
+	logger.Debugw(ctx, "Process_inter_adapter_message", log.Fields{"msgId": iaMsg.Header.Id})
+
+	//Invoke the inter adapter API on the handler
+	if err := rhp.adapter.Process_inter_adapter_message(ctx, iaMsg); err != nil {
+		return nil, status.Errorf(codes.NotFound, "%s", err.Error())
+	}
+
+	return new(empty.Empty), nil
+}
+
+func (rhp *RequestHandlerProxy) Download_image(args []*ic.Argument) (*voltha.ImageDownload, error) {
+	return &voltha.ImageDownload{}, nil
+}
+
+func (rhp *RequestHandlerProxy) Get_image_download_status(args []*ic.Argument) (*voltha.ImageDownload, error) {
+	return &voltha.ImageDownload{}, nil
+}
+
+func (rhp *RequestHandlerProxy) Cancel_image_download(args []*ic.Argument) (*voltha.ImageDownload, error) {
+	return &voltha.ImageDownload{}, nil
+}
+
+func (rhp *RequestHandlerProxy) Activate_image_update(args []*ic.Argument) (*voltha.ImageDownload, error) {
+	return &voltha.ImageDownload{}, nil
+}
+
+func (rhp *RequestHandlerProxy) Revert_image_update(args []*ic.Argument) (*voltha.ImageDownload, error) {
+	return &voltha.ImageDownload{}, nil
+}
+
+func (rhp *RequestHandlerProxy) Enable_port(ctx context.Context, args []*ic.Argument) error {
+	logger.Debugw(ctx, "enable_port", log.Fields{"args": args})
+	deviceId, port, err := rhp.getEnableDisableParams(ctx, args)
+	if err != nil {
+		logger.Warnw(ctx, "enable_port", log.Fields{"args": args, "device-id": deviceId, "port": port})
+		return err
+	}
+	return rhp.adapter.Enable_port(ctx, deviceId, port)
+}
+
+func (rhp *RequestHandlerProxy) Disable_port(ctx context.Context, args []*ic.Argument) error {
+	logger.Debugw(ctx, "disable_port", log.Fields{"args": args})
+	deviceId, port, err := rhp.getEnableDisableParams(ctx, args)
+	if err != nil {
+		logger.Warnw(ctx, "disable_port", log.Fields{"args": args, "device-id": deviceId, "port": port})
+		return err
+	}
+	return rhp.adapter.Disable_port(ctx, deviceId, port)
+}
+
+func (rhp *RequestHandlerProxy) getEnableDisableParams(ctx context.Context, args []*ic.Argument) (string, *voltha.Port, error) {
+	logger.Debugw(ctx, "getEnableDisableParams", log.Fields{"args": args})
+	if len(args) < 3 {
+		logger.Warn(ctx, "invalid-number-of-args", log.Fields{"args": args})
+		return "", nil, errors.New("invalid-number-of-args")
+	}
+	deviceId := &ic.StrType{}
+	port := &voltha.Port{}
+	for _, arg := range args {
+		switch arg.Key {
+		case "deviceId":
+			if err := ptypes.UnmarshalAny(arg.Value, deviceId); err != nil {
+				logger.Warnw(ctx, "cannot-unmarshal-device", log.Fields{"error": err})
+				return "", nil, err
+			}
+		case "port":
+			if err := ptypes.UnmarshalAny(arg.Value, port); err != nil {
+				logger.Warnw(ctx, "cannot-unmarshal-port", log.Fields{"error": err})
+				return "", nil, err
+			}
+		}
+	}
+	return deviceId.Val, port, nil
+}
+
+func (rhp *RequestHandlerProxy) Child_device_lost(ctx context.Context, args []*ic.Argument) error {
+	if len(args) < 4 {
+		logger.Warn(ctx, "invalid-number-of-args", log.Fields{"args": args})
+		return errors.New("invalid-number-of-args")
+	}
+
+	pDeviceId := &ic.StrType{}
+	pPortNo := &ic.IntType{}
+	onuID := &ic.IntType{}
+	fromTopic := &ic.StrType{}
+	for _, arg := range args {
+		switch arg.Key {
+		case "pDeviceId":
+			if err := ptypes.UnmarshalAny(arg.Value, pDeviceId); err != nil {
+				logger.Warnw(ctx, "cannot-unmarshal-parent-deviceId", log.Fields{"error": err})
+				return err
+			}
+		case "pPortNo":
+			if err := ptypes.UnmarshalAny(arg.Value, pPortNo); err != nil {
+				logger.Warnw(ctx, "cannot-unmarshal-port", log.Fields{"error": err})
+				return err
+			}
+		case "onuID":
+			if err := ptypes.UnmarshalAny(arg.Value, onuID); err != nil {
+				logger.Warnw(ctx, "cannot-unmarshal-transaction-ID", log.Fields{"error": err})
+				return err
+			}
+		case kafka.FromTopic:
+			if err := ptypes.UnmarshalAny(arg.Value, fromTopic); err != nil {
+				logger.Warnw(ctx, "cannot-unmarshal-from-topic", log.Fields{"error": err})
+				return err
+			}
+		}
+	}
+	//Update the core reference for that device
+	rhp.coreProxy.UpdateCoreReference(pDeviceId.Val, fromTopic.Val)
+	//Invoke the Child_device_lost API on the adapter
+	if err := rhp.adapter.Child_device_lost(ctx, pDeviceId.Val, uint32(pPortNo.Val), uint32(onuID.Val)); err != nil {
+		return status.Errorf(codes.NotFound, "%s", err.Error())
+	}
+	return nil
+}
+
+func (rhp *RequestHandlerProxy) Start_omci_test(ctx context.Context, args []*ic.Argument) (*ic.TestResponse, error) {
+	if len(args) < 2 {
+		logger.Warn(ctx, "invalid-number-of-args", log.Fields{"args": args})
+		err := errors.New("invalid-number-of-args")
+		return nil, err
+	}
+
+	// TODO: See related comment in voltha-go:adapter_proxy_go:startOmciTest()
+	//   Second argument should perhaps be uuid instead of omcitestrequest
+
+	device := &voltha.Device{}
+	request := &voltha.OmciTestRequest{}
+	for _, arg := range args {
+		switch arg.Key {
+		case "device":
+			if err := ptypes.UnmarshalAny(arg.Value, device); err != nil {
+				logger.Warnw(ctx, "cannot-unmarshal-device", log.Fields{"error": err})
+				return nil, err
+			}
+		case "omcitestrequest":
+			if err := ptypes.UnmarshalAny(arg.Value, request); err != nil {
+				logger.Warnw(ctx, "cannot-unmarshal-omcitestrequest", log.Fields{"error": err})
+				return nil, err
+			}
+		}
+	}
+	logger.Debugw(ctx, "Start_omci_test", log.Fields{"device-id": device.Id, "req": request})
+	result, err := rhp.adapter.Start_omci_test(ctx, device, request)
+	if err != nil {
+		return nil, status.Errorf(codes.NotFound, "%s", err.Error())
+	}
+	return result, nil
+}
+func (rhp *RequestHandlerProxy) Get_ext_value(ctx context.Context, args []*ic.Argument) (*voltha.ReturnValues, error) {
+	if len(args) < 3 {
+		logger.Warn(ctx, "invalid-number-of-args", log.Fields{"args": args})
+		return nil, errors.New("invalid-number-of-args")
+	}
+
+	pDeviceId := &ic.StrType{}
+	device := &voltha.Device{}
+	valuetype := &ic.IntType{}
+	for _, arg := range args {
+		switch arg.Key {
+		case "device":
+			if err := ptypes.UnmarshalAny(arg.Value, device); err != nil {
+				logger.Warnw(ctx, "cannot-unmarshal-device", log.Fields{"error": err})
+				return nil, err
+			}
+		case "pDeviceId":
+			if err := ptypes.UnmarshalAny(arg.Value, pDeviceId); err != nil {
+				logger.Warnw(ctx, "cannot-unmarshal-parent-device-id", log.Fields{"error": err})
+				return nil, err
+			}
+		case "valuetype":
+			if err := ptypes.UnmarshalAny(arg.Value, valuetype); err != nil {
+				logger.Warnw(ctx, "cannot-unmarshal-valuetype", log.Fields{"error": err})
+				return nil, err
+			}
+		default:
+			logger.Warnw(ctx, "key-not-found", log.Fields{"arg.Key": arg.Key})
+		}
+	}
+
+	//Invoke the Get_value API on the adapter
+	return rhp.adapter.Get_ext_value(ctx, pDeviceId.Val, device, voltha.ValueType_Type(valuetype.Val))
+}
diff --git a/vendor/github.com/opencord/voltha-lib-go/v4/pkg/adapters/common/utils.go b/vendor/github.com/opencord/voltha-lib-go/v4/pkg/adapters/common/utils.go
new file mode 100644
index 0000000..65b432c
--- /dev/null
+++ b/vendor/github.com/opencord/voltha-lib-go/v4/pkg/adapters/common/utils.go
@@ -0,0 +1,91 @@
+/*
+ * Copyright 2018-present Open Networking Foundation
+
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+
+ * http://www.apache.org/licenses/LICENSE-2.0
+
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package common
+
+import (
+	"context"
+	"fmt"
+	"github.com/opencord/voltha-lib-go/v4/pkg/log"
+	ic "github.com/opencord/voltha-protos/v4/go/inter_container"
+	"google.golang.org/grpc/codes"
+	"math/rand"
+	"time"
+)
+
+//GetRandomSerialNumber returns a serial number formatted as "HOST:PORT"
+func GetRandomSerialNumber() string {
+	rand.Seed(time.Now().UnixNano())
+	return fmt.Sprintf("%d.%d.%d.%d:%d",
+		rand.Intn(255),
+		rand.Intn(255),
+		rand.Intn(255),
+		rand.Intn(255),
+		rand.Intn(9000)+1000,
+	)
+}
+
+//GetRandomMacAddress returns a random mac address
+func GetRandomMacAddress() string {
+	rand.Seed(time.Now().UnixNano())
+	return fmt.Sprintf("%02x:%02x:%02x:%02x:%02x:%02x",
+		rand.Intn(128),
+		rand.Intn(128),
+		rand.Intn(128),
+		rand.Intn(128),
+		rand.Intn(128),
+		rand.Intn(128),
+	)
+}
+
+const letterBytes = "abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ"
+const (
+	letterIdxBits = 6                    // 6 bits to represent a letter index
+	letterIdxMask = 1<<letterIdxBits - 1 // All 1-bits, as many as letterIdxBits
+	letterIdxMax  = 63 / letterIdxBits   // # of letter indices fitting in 63 bits
+)
+
+var src = rand.NewSource(time.Now().UnixNano())
+
+func GetRandomString(n int) string {
+	b := make([]byte, n)
+	// A src.Int63() generates 63 random bits, enough for letterIdxMax characters!
+	for i, cache, remain := n-1, src.Int63(), letterIdxMax; i >= 0; {
+		if remain == 0 {
+			cache, remain = src.Int63(), letterIdxMax
+		}
+		if idx := int(cache & letterIdxMask); idx < len(letterBytes) {
+			b[i] = letterBytes[idx]
+			i--
+		}
+		cache >>= letterIdxBits
+		remain--
+	}
+	return string(b)
+}
+
+func ICProxyErrorCodeToGrpcErrorCode(ctx context.Context, icErr ic.ErrorCodeCodes) codes.Code {
+	switch icErr {
+	case ic.ErrorCode_INVALID_PARAMETERS:
+		return codes.InvalidArgument
+	case ic.ErrorCode_UNSUPPORTED_REQUEST:
+		return codes.Unavailable
+	case ic.ErrorCode_DEADLINE_EXCEEDED:
+		return codes.DeadlineExceeded
+	default:
+		logger.Warnw(ctx, "cannnot-map-ic-error-code-to-grpc-error-code", log.Fields{"err": icErr})
+		return codes.Internal
+	}
+}
diff --git a/vendor/github.com/opencord/voltha-lib-go/v4/pkg/adapters/iAdapter.go b/vendor/github.com/opencord/voltha-lib-go/v4/pkg/adapters/iAdapter.go
new file mode 100644
index 0000000..b106d52
--- /dev/null
+++ b/vendor/github.com/opencord/voltha-lib-go/v4/pkg/adapters/iAdapter.go
@@ -0,0 +1,57 @@
+/*
+ * Copyright 2018-present Open Networking Foundation
+
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+
+ * http://www.apache.org/licenses/LICENSE-2.0
+
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package adapters
+
+import (
+	"context"
+	ic "github.com/opencord/voltha-protos/v4/go/inter_container"
+	"github.com/opencord/voltha-protos/v4/go/openflow_13"
+	"github.com/opencord/voltha-protos/v4/go/voltha"
+)
+
+//IAdapter represents the set of APIs a voltha adapter has to support.
+type IAdapter interface {
+	Adapter_descriptor(ctx context.Context) error
+	Device_types(ctx context.Context) (*voltha.DeviceTypes, error)
+	Health(ctx context.Context) (*voltha.HealthStatus, error)
+	Adopt_device(ctx context.Context, device *voltha.Device) error
+	Reconcile_device(ctx context.Context, device *voltha.Device) error
+	Abandon_device(ctx context.Context, device *voltha.Device) error
+	Disable_device(ctx context.Context, device *voltha.Device) error
+	Reenable_device(ctx context.Context, device *voltha.Device) error
+	Reboot_device(ctx context.Context, device *voltha.Device) error
+	Self_test_device(ctx context.Context, device *voltha.Device) error
+	Delete_device(ctx context.Context, device *voltha.Device) error
+	Get_device_details(ctx context.Context, device *voltha.Device) error
+	Update_flows_bulk(ctx context.Context, device *voltha.Device, flows *voltha.Flows, groups *voltha.FlowGroups, flowMetadata *voltha.FlowMetadata) error
+	Update_flows_incrementally(ctx context.Context, device *voltha.Device, flows *openflow_13.FlowChanges, groups *openflow_13.FlowGroupChanges, flowMetadata *voltha.FlowMetadata) error
+	Update_pm_config(ctx context.Context, device *voltha.Device, pm_configs *voltha.PmConfigs) error
+	Receive_packet_out(ctx context.Context, deviceId string, egress_port_no int, msg *openflow_13.OfpPacketOut) error
+	Suppress_event(ctx context.Context, filter *voltha.EventFilter) error
+	Unsuppress_event(ctx context.Context, filter *voltha.EventFilter) error
+	Get_ofp_device_info(ctx context.Context, device *voltha.Device) (*ic.SwitchCapability, error)
+	Process_inter_adapter_message(ctx context.Context, msg *ic.InterAdapterMessage) error
+	Download_image(ctx context.Context, device *voltha.Device, request *voltha.ImageDownload) (*voltha.ImageDownload, error)
+	Get_image_download_status(ctx context.Context, device *voltha.Device, request *voltha.ImageDownload) (*voltha.ImageDownload, error)
+	Cancel_image_download(ctx context.Context, device *voltha.Device, request *voltha.ImageDownload) (*voltha.ImageDownload, error)
+	Activate_image_update(ctx context.Context, device *voltha.Device, request *voltha.ImageDownload) (*voltha.ImageDownload, error)
+	Revert_image_update(ctx context.Context, device *voltha.Device, request *voltha.ImageDownload) (*voltha.ImageDownload, error)
+	Enable_port(ctx context.Context, deviceId string, port *voltha.Port) error
+	Disable_port(ctx context.Context, deviceId string, port *voltha.Port) error
+	Child_device_lost(ctx context.Context, parentDeviceId string, parentPortNo uint32, onuID uint32) error
+	Start_omci_test(ctx context.Context, device *voltha.Device, request *voltha.OmciTestRequest) (*voltha.TestResponse, error)
+	Get_ext_value(ctx context.Context, deviceId string, device *voltha.Device, valueflag voltha.ValueType_Type) (*voltha.ReturnValues, error)
+}