diff --git a/vendor/github.com/boguslaw-wojcik/crc32a/.gitignore b/vendor/github.com/boguslaw-wojcik/crc32a/.gitignore
new file mode 100644
index 0000000..a09c56d
--- /dev/null
+++ b/vendor/github.com/boguslaw-wojcik/crc32a/.gitignore
@@ -0,0 +1 @@
+/.idea
diff --git a/vendor/github.com/boguslaw-wojcik/crc32a/LICENSE b/vendor/github.com/boguslaw-wojcik/crc32a/LICENSE
new file mode 100644
index 0000000..e24c314
--- /dev/null
+++ b/vendor/github.com/boguslaw-wojcik/crc32a/LICENSE
@@ -0,0 +1,21 @@
+MIT License
+
+Copyright (c) 2019 Bogusław Wójcik
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.
diff --git a/vendor/github.com/boguslaw-wojcik/crc32a/README.md b/vendor/github.com/boguslaw-wojcik/crc32a/README.md
new file mode 100644
index 0000000..6b2fea8
--- /dev/null
+++ b/vendor/github.com/boguslaw-wojcik/crc32a/README.md
@@ -0,0 +1,40 @@
+# CRC32A
+A pure Go implementation of CRC32A (ITU I.363.5) checksum missing from Golang standard library. Largely based on C implementation found in PHP source files.
+
+## Usage
+
+```go
+package main
+
+import (
+	"fmt"
+	
+	"github.com/boguslaw-wojcik/crc32a"
+)
+
+func main() {
+	b := []byte("123456789")
+	sum := crc32a.Checksum(b)
+	sumHex := crc32a.ChecksumHex(b)
+
+	fmt.Println(sum)    // 404326908
+	fmt.Println(sumHex) // 181989fc
+}
+```
+
+## Background
+There are four popular implementations of CRC32 of which three are included in Golang standard library. This package provides missing implementation of CRC32A (ITU I.363.5) popularized by bzip2 and PHP. If you're unsure what CRC32 algorithm you're using, calculate checksum for string `123456789` and compare results with the table below.
+
+| Variant | Performance | Standard Library | Data | Hex | Sum |
+| :--- | :---: | :---: | :---: | :---: | ---: |
+| **CRC32A (ITU I.363.5)** | **31.4 ns/op** | **no** | **123456789** | **181989fc** | **404326908** |
+| CRC32B (ITU V.42 / IEEE 802.3) | 24.0 ns/op | yes | 123456789 | cbf43926 | 3421780262 |
+| CRC32C (Castagnoli) | 15.2 ns/op | yes | 123456789 | e3069283 | 3808858755 |
+| CRC32K (Koopman) | 4534 ns/op | yes | 123456789 | 2d3dd0ae | 759025838 |
+
+_Note: Unless you're required to use CRC32A for legacy reasons, in general you should choose CRC32B as the most popular and widely implemented CRC32 variation._
+
+## References
+
+* [CRC32 Demystified](https://github.com/Michaelangel007/crc32) by Michael Pohoreski
+* [PHP CRC32 source](https://github.com/php/php-src/blob/php-7.3.1/ext/hash/hash_crc32.c) by PHP Group
diff --git a/vendor/github.com/boguslaw-wojcik/crc32a/crc32a.go b/vendor/github.com/boguslaw-wojcik/crc32a/crc32a.go
new file mode 100644
index 0000000..7f13216
--- /dev/null
+++ b/vendor/github.com/boguslaw-wojcik/crc32a/crc32a.go
@@ -0,0 +1,99 @@
+package crc32a
+
+import (
+	"encoding/binary"
+	"encoding/hex"
+)
+
+// Checksum calculates CRC32A (ITU I.363.5 algorithm, popularized by BZIP2) checksum.
+// This function will produce the same results as following PHP code:
+//  hexdec(hash('crc32', $data))
+func Checksum(data []byte) uint32 {
+	b := digest(data)
+
+	return binary.BigEndian.Uint32(b)
+}
+
+// ChecksumHex is a convenience function that outputs CRC32A (ITU I.363.5 algorithm, popularized by BZIP2) checksum as a hex string.
+// This function will produce the same results as following PHP code:
+//  hash('crc32', $data)
+func ChecksumHex(data []byte) string {
+	b := digest(data)
+
+	return hex.EncodeToString(b)
+}
+
+// digest performs checksum calculation for each byte of provided data and returns digest in form of byte array.
+func digest(data []byte) []byte {
+	var crc uint32
+	var digest = make([]byte, 4)
+
+	crc = ^crc
+	for i := 0; i < len(data); i++ {
+		crc = (crc << 8) ^ table[(crc >> 24) ^ (uint32(data[i]) & 0xff)]
+	}
+	crc = ^crc
+
+	digest[3] = byte((crc >> 24) & 0xff)
+	digest[2] = byte((crc >> 16) & 0xff)
+	digest[1] = byte((crc >> 8) & 0xff)
+	digest[0] = byte(crc & 0xff)
+
+	return digest
+}
+
+// table is the pre-generated 0x04C11DB7 polynominal used for CRC32A.
+var table = [256]uint32{
+	0x0,
+	0x04c11db7, 0x09823b6e, 0x0d4326d9, 0x130476dc, 0x17c56b6b,
+	0x1a864db2, 0x1e475005, 0x2608edb8, 0x22c9f00f, 0x2f8ad6d6,
+	0x2b4bcb61, 0x350c9b64, 0x31cd86d3, 0x3c8ea00a, 0x384fbdbd,
+	0x4c11db70, 0x48d0c6c7, 0x4593e01e, 0x4152fda9, 0x5f15adac,
+	0x5bd4b01b, 0x569796c2, 0x52568b75, 0x6a1936c8, 0x6ed82b7f,
+	0x639b0da6, 0x675a1011, 0x791d4014, 0x7ddc5da3, 0x709f7b7a,
+	0x745e66cd, 0x9823b6e0, 0x9ce2ab57, 0x91a18d8e, 0x95609039,
+	0x8b27c03c, 0x8fe6dd8b, 0x82a5fb52, 0x8664e6e5, 0xbe2b5b58,
+	0xbaea46ef, 0xb7a96036, 0xb3687d81, 0xad2f2d84, 0xa9ee3033,
+	0xa4ad16ea, 0xa06c0b5d, 0xd4326d90, 0xd0f37027, 0xddb056fe,
+	0xd9714b49, 0xc7361b4c, 0xc3f706fb, 0xceb42022, 0xca753d95,
+	0xf23a8028, 0xf6fb9d9f, 0xfbb8bb46, 0xff79a6f1, 0xe13ef6f4,
+	0xe5ffeb43, 0xe8bccd9a, 0xec7dd02d, 0x34867077, 0x30476dc0,
+	0x3d044b19, 0x39c556ae, 0x278206ab, 0x23431b1c, 0x2e003dc5,
+	0x2ac12072, 0x128e9dcf, 0x164f8078, 0x1b0ca6a1, 0x1fcdbb16,
+	0x018aeb13, 0x054bf6a4, 0x0808d07d, 0x0cc9cdca, 0x7897ab07,
+	0x7c56b6b0, 0x71159069, 0x75d48dde, 0x6b93dddb, 0x6f52c06c,
+	0x6211e6b5, 0x66d0fb02, 0x5e9f46bf, 0x5a5e5b08, 0x571d7dd1,
+	0x53dc6066, 0x4d9b3063, 0x495a2dd4, 0x44190b0d, 0x40d816ba,
+	0xaca5c697, 0xa864db20, 0xa527fdf9, 0xa1e6e04e, 0xbfa1b04b,
+	0xbb60adfc, 0xb6238b25, 0xb2e29692, 0x8aad2b2f, 0x8e6c3698,
+	0x832f1041, 0x87ee0df6, 0x99a95df3, 0x9d684044, 0x902b669d,
+	0x94ea7b2a, 0xe0b41de7, 0xe4750050, 0xe9362689, 0xedf73b3e,
+	0xf3b06b3b, 0xf771768c, 0xfa325055, 0xfef34de2, 0xc6bcf05f,
+	0xc27dede8, 0xcf3ecb31, 0xcbffd686, 0xd5b88683, 0xd1799b34,
+	0xdc3abded, 0xd8fba05a, 0x690ce0ee, 0x6dcdfd59, 0x608edb80,
+	0x644fc637, 0x7a089632, 0x7ec98b85, 0x738aad5c, 0x774bb0eb,
+	0x4f040d56, 0x4bc510e1, 0x46863638, 0x42472b8f, 0x5c007b8a,
+	0x58c1663d, 0x558240e4, 0x51435d53, 0x251d3b9e, 0x21dc2629,
+	0x2c9f00f0, 0x285e1d47, 0x36194d42, 0x32d850f5, 0x3f9b762c,
+	0x3b5a6b9b, 0x0315d626, 0x07d4cb91, 0x0a97ed48, 0x0e56f0ff,
+	0x1011a0fa, 0x14d0bd4d, 0x19939b94, 0x1d528623, 0xf12f560e,
+	0xf5ee4bb9, 0xf8ad6d60, 0xfc6c70d7, 0xe22b20d2, 0xe6ea3d65,
+	0xeba91bbc, 0xef68060b, 0xd727bbb6, 0xd3e6a601, 0xdea580d8,
+	0xda649d6f, 0xc423cd6a, 0xc0e2d0dd, 0xcda1f604, 0xc960ebb3,
+	0xbd3e8d7e, 0xb9ff90c9, 0xb4bcb610, 0xb07daba7, 0xae3afba2,
+	0xaafbe615, 0xa7b8c0cc, 0xa379dd7b, 0x9b3660c6, 0x9ff77d71,
+	0x92b45ba8, 0x9675461f, 0x8832161a, 0x8cf30bad, 0x81b02d74,
+	0x857130c3, 0x5d8a9099, 0x594b8d2e, 0x5408abf7, 0x50c9b640,
+	0x4e8ee645, 0x4a4ffbf2, 0x470cdd2b, 0x43cdc09c, 0x7b827d21,
+	0x7f436096, 0x7200464f, 0x76c15bf8, 0x68860bfd, 0x6c47164a,
+	0x61043093, 0x65c52d24, 0x119b4be9, 0x155a565e, 0x18197087,
+	0x1cd86d30, 0x029f3d35, 0x065e2082, 0x0b1d065b, 0x0fdc1bec,
+	0x3793a651, 0x3352bbe6, 0x3e119d3f, 0x3ad08088, 0x2497d08d,
+	0x2056cd3a, 0x2d15ebe3, 0x29d4f654, 0xc5a92679, 0xc1683bce,
+	0xcc2b1d17, 0xc8ea00a0, 0xd6ad50a5, 0xd26c4d12, 0xdf2f6bcb,
+	0xdbee767c, 0xe3a1cbc1, 0xe760d676, 0xea23f0af, 0xeee2ed18,
+	0xf0a5bd1d, 0xf464a0aa, 0xf9278673, 0xfde69bc4, 0x89b8fd09,
+	0x8d79e0be, 0x803ac667, 0x84fbdbd0, 0x9abc8bd5, 0x9e7d9662,
+	0x933eb0bb, 0x97ffad0c, 0xafb010b1, 0xab710d06, 0xa6322bdf,
+	0xa2f33668, 0xbcb4666d, 0xb8757bda, 0xb5365d03, 0xb1f740b4,
+}
\ No newline at end of file
diff --git a/vendor/github.com/boguslaw-wojcik/crc32a/go.mod b/vendor/github.com/boguslaw-wojcik/crc32a/go.mod
new file mode 100644
index 0000000..27b7a70
--- /dev/null
+++ b/vendor/github.com/boguslaw-wojcik/crc32a/go.mod
@@ -0,0 +1 @@
+module github.com/boguslaw-wojcik/crc32a
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
index 7d14db7..459cac5 100644
--- 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
@@ -559,24 +559,107 @@
 	return new(empty.Empty), nil
 }
 
-func (rhp *RequestHandlerProxy) Download_image(args []*ic.Argument) (*voltha.ImageDownload, error) {
-	return &voltha.ImageDownload{}, nil
+func (rhp *RequestHandlerProxy) Download_image(ctx context.Context, args []*ic.Argument) (*voltha.ImageDownload, error) {
+	device, image, err := unMarshalImageDowload(args, ctx)
+	if err != nil {
+		return nil, err
+	}
+
+	imageDownload, err := rhp.adapter.Download_image(ctx, device, image)
+	if err != nil {
+		return nil, status.Errorf(codes.NotFound, "%s", err.Error())
+	}
+	return imageDownload, nil
 }
 
-func (rhp *RequestHandlerProxy) Get_image_download_status(args []*ic.Argument) (*voltha.ImageDownload, error) {
-	return &voltha.ImageDownload{}, nil
+func (rhp *RequestHandlerProxy) Get_image_download_status(ctx context.Context, args []*ic.Argument) (*voltha.ImageDownload, error) {
+	device, image, err := unMarshalImageDowload(args, ctx)
+	if err != nil {
+		return nil, err
+	}
+
+	imageDownload, err := rhp.adapter.Get_image_download_status(ctx, device, image)
+	if err != nil {
+		return nil, status.Errorf(codes.NotFound, "%s", err.Error())
+	}
+	return imageDownload, nil
 }
 
-func (rhp *RequestHandlerProxy) Cancel_image_download(args []*ic.Argument) (*voltha.ImageDownload, error) {
-	return &voltha.ImageDownload{}, nil
+func (rhp *RequestHandlerProxy) Cancel_image_download(ctx context.Context, args []*ic.Argument) (*voltha.ImageDownload, error) {
+	device, image, err := unMarshalImageDowload(args, ctx)
+	if err != nil {
+		return nil, err
+	}
+
+	imageDownload, err := rhp.adapter.Cancel_image_download(ctx, device, image)
+	if err != nil {
+		return nil, status.Errorf(codes.NotFound, "%s", err.Error())
+	}
+	return imageDownload, nil
 }
 
-func (rhp *RequestHandlerProxy) Activate_image_update(args []*ic.Argument) (*voltha.ImageDownload, error) {
-	return &voltha.ImageDownload{}, nil
+func (rhp *RequestHandlerProxy) Activate_image_update(ctx context.Context, args []*ic.Argument) (*voltha.ImageDownload, error) {
+
+	device, image, err := unMarshalImageDowload(args, ctx)
+	if err != nil {
+		return nil, err
+	}
+
+	imageDownload, err := rhp.adapter.Activate_image_update(ctx, device, image)
+	if err != nil {
+		return nil, status.Errorf(codes.NotFound, "%s", err.Error())
+	}
+	return imageDownload, nil
 }
 
-func (rhp *RequestHandlerProxy) Revert_image_update(args []*ic.Argument) (*voltha.ImageDownload, error) {
-	return &voltha.ImageDownload{}, nil
+func (rhp *RequestHandlerProxy) Revert_image_update(ctx context.Context, args []*ic.Argument) (*voltha.ImageDownload, error) {
+	device, image, err := unMarshalImageDowload(args, ctx)
+	if err != nil {
+		return nil, err
+	}
+
+	imageDownload, err := rhp.adapter.Revert_image_update(ctx, device, image)
+	if err != nil {
+		return nil, status.Errorf(codes.NotFound, "%s", err.Error())
+	}
+	return imageDownload, nil
+}
+
+func unMarshalImageDowload(args []*ic.Argument, ctx context.Context) (*voltha.Device, *voltha.ImageDownload, error) {
+	if len(args) < 4 {
+		logger.Warn(ctx, "invalid-number-of-args", log.Fields{"args": args})
+		err := errors.New("invalid-number-of-args")
+		return nil, nil, err
+	}
+	device := &voltha.Device{}
+	image := &voltha.ImageDownload{}
+	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, nil, err
+			}
+		case "request":
+			if err := ptypes.UnmarshalAny(arg.Value, image); err != nil {
+				logger.Warnw(ctx, "cannot-unmarshal-image", log.Fields{"error": err})
+				return nil, 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, 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, nil, err
+			}
+		}
+	}
+	return device, image, nil
 }
 
 func (rhp *RequestHandlerProxy) Enable_port(ctx context.Context, args []*ic.Argument) error {
diff --git a/vendor/github.com/opencord/voltha-lib-go/v4/pkg/events/events_proxy.go b/vendor/github.com/opencord/voltha-lib-go/v4/pkg/events/events_proxy.go
index a4b12f7..c4014ee 100644
--- a/vendor/github.com/opencord/voltha-lib-go/v4/pkg/events/events_proxy.go
+++ b/vendor/github.com/opencord/voltha-lib-go/v4/pkg/events/events_proxy.go
@@ -78,6 +78,8 @@
 	header.Category = category
 	if subCategory != nil {
 		header.SubCategory = *subCategory
+	} else {
+		header.SubCategory = voltha.EventSubCategory_NONE
 	}
 	header.Type = eventType
 	header.TypeVersion = eventif.EventTypeVersion
diff --git a/vendor/github.com/opencord/voltha-protos/v4/go/voltha/events.pb.go b/vendor/github.com/opencord/voltha-protos/v4/go/voltha/events.pb.go
index f51a7b7..2dc1826 100644
--- a/vendor/github.com/opencord/voltha-protos/v4/go/voltha/events.pb.go
+++ b/vendor/github.com/opencord/voltha-protos/v4/go/voltha/events.pb.go
@@ -116,11 +116,12 @@
 type EventSubCategory_Types int32
 
 const (
-	EventSubCategory_PON EventSubCategory_Types = 0
-	EventSubCategory_OLT EventSubCategory_Types = 1
-	EventSubCategory_ONT EventSubCategory_Types = 2
-	EventSubCategory_ONU EventSubCategory_Types = 3
-	EventSubCategory_NNI EventSubCategory_Types = 4
+	EventSubCategory_PON  EventSubCategory_Types = 0
+	EventSubCategory_OLT  EventSubCategory_Types = 1
+	EventSubCategory_ONT  EventSubCategory_Types = 2
+	EventSubCategory_ONU  EventSubCategory_Types = 3
+	EventSubCategory_NNI  EventSubCategory_Types = 4
+	EventSubCategory_NONE EventSubCategory_Types = 5
 )
 
 var EventSubCategory_Types_name = map[int32]string{
@@ -129,14 +130,16 @@
 	2: "ONT",
 	3: "ONU",
 	4: "NNI",
+	5: "NONE",
 }
 
 var EventSubCategory_Types_value = map[string]int32{
-	"PON": 0,
-	"OLT": 1,
-	"ONT": 2,
-	"ONU": 3,
-	"NNI": 4,
+	"PON":  0,
+	"OLT":  1,
+	"ONT":  2,
+	"ONU":  3,
+	"NNI":  4,
+	"NONE": 5,
 }
 
 func (x EventSubCategory_Types) String() string {
@@ -1149,85 +1152,86 @@
 func init() { proto.RegisterFile("voltha_protos/events.proto", fileDescriptor_e63e6c07044fd2c4) }
 
 var fileDescriptor_e63e6c07044fd2c4 = []byte{
-	// 1274 bytes of a gzipped FileDescriptorProto
-	0x1f, 0x8b, 0x08, 0x00, 0x00, 0x00, 0x00, 0x00, 0x02, 0xff, 0xb4, 0x56, 0xdf, 0x6e, 0xdb, 0xb6,
-	0x17, 0xb6, 0xe4, 0xff, 0x47, 0x4e, 0xa2, 0xb0, 0xbf, 0xdf, 0xe6, 0xba, 0x5b, 0x9b, 0x7a, 0xd8,
-	0x10, 0xb4, 0xa8, 0x8c, 0x69, 0x05, 0x1a, 0xa4, 0x18, 0xb6, 0xd6, 0xf5, 0x1a, 0xa1, 0x8b, 0xed,
-	0x29, 0x4e, 0x80, 0xee, 0xc6, 0x60, 0x24, 0xc6, 0x11, 0x62, 0x5b, 0x02, 0x49, 0x1b, 0xcd, 0x03,
-	0xec, 0x7a, 0x0f, 0xb2, 0xe7, 0xd8, 0xdd, 0xde, 0x60, 0x18, 0xf6, 0x12, 0x7b, 0x80, 0x81, 0x7f,
-	0x64, 0x4b, 0x6e, 0x8a, 0x5e, 0x04, 0xbb, 0x12, 0x79, 0x78, 0x3e, 0x9e, 0xef, 0x7c, 0xe2, 0x39,
-	0x24, 0xb4, 0x96, 0xf1, 0x94, 0x5f, 0xe2, 0x71, 0x42, 0x63, 0x1e, 0xb3, 0x0e, 0x59, 0x92, 0x39,
-	0x67, 0x8e, 0x9c, 0xa1, 0x8a, 0x5a, 0x6b, 0x35, 0xf3, 0x3e, 0x33, 0xc2, 0xb1, 0xf2, 0x68, 0x7d,
-	0x36, 0x89, 0xe3, 0xc9, 0x94, 0x74, 0x70, 0x12, 0x75, 0xf0, 0x7c, 0x1e, 0x73, 0xcc, 0xa3, 0x78,
-	0xae, 0xf1, 0xad, 0x07, 0x7a, 0x55, 0xce, 0xce, 0x17, 0x17, 0x1d, 0x1e, 0xcd, 0x08, 0xe3, 0x78,
-	0x96, 0x68, 0x87, 0x8d, 0xe0, 0x41, 0x3c, 0x9b, 0xc5, 0x73, 0xb5, 0xd6, 0x7e, 0x0e, 0x3b, 0xdd,
-	0x78, 0x7e, 0x11, 0x4d, 0x7a, 0x82, 0xd2, 0xe8, 0x3a, 0x21, 0xed, 0x7d, 0x28, 0x8b, 0x2f, 0x43,
-	0x55, 0x28, 0xe2, 0x30, 0xb4, 0x0b, 0x08, 0xa0, 0x42, 0xc9, 0x2c, 0x5e, 0x12, 0xdb, 0x10, 0xe3,
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+	0xb5, 0x77, 0x15, 0x7b, 0xba, 0x56, 0xac, 0x2e, 0x14, 0x5b, 0x5d, 0x15, 0x59, 0x3e, 0xef, 0xe9,
+	0x7d, 0x4f, 0xa0, 0x46, 0x19, 0x66, 0x0b, 0xda, 0x6e, 0x88, 0x63, 0xfa, 0x7f, 0x4b, 0xdd, 0x65,
+	0x83, 0x2c, 0x2b, 0x9f, 0xd0, 0xc4, 0x57, 0x4e, 0xb7, 0x52, 0x77, 0x09, 0x5b, 0x82, 0x49, 0x1f,
+	0x33, 0x32, 0x89, 0xd3, 0xeb, 0x2e, 0xc9, 0x6e, 0x9c, 0x5d, 0xd8, 0xea, 0x0f, 0x8e, 0x8f, 0x4f,
+	0x3d, 0xb7, 0xff, 0x7c, 0xe4, 0x0e, 0x3c, 0xb3, 0x84, 0x76, 0xc0, 0x70, 0xbc, 0x33, 0xd7, 0x1f,
+	0x78, 0xc7, 0x8e, 0x37, 0x32, 0x35, 0xb4, 0x05, 0x4d, 0xe7, 0xa7, 0x53, 0x77, 0x28, 0xa6, 0x3a,
+	0x32, 0xa0, 0x7e, 0xe2, 0xf8, 0x67, 0x6e, 0xdf, 0x31, 0xcb, 0x68, 0x1b, 0x60, 0xe8, 0x0f, 0xfa,
+	0xce, 0xc9, 0x89, 0xeb, 0xbd, 0x32, 0x2b, 0xa8, 0x05, 0x8d, 0x13, 0xa7, 0x7f, 0xea, 0xbb, 0xa3,
+	0x37, 0x66, 0xb5, 0xeb, 0x83, 0x29, 0xe2, 0x9e, 0x2c, 0xce, 0x57, 0xa1, 0xbf, 0xcd, 0x5d, 0xc8,
+	0x43, 0x11, 0xb0, 0x0e, 0xe5, 0xc1, 0x8f, 0x3c, 0x10, 0x1f, 0x88, 0x10, 0x62, 0x70, 0x6a, 0x96,
+	0xf9, 0xc0, 0xf3, 0x5c, 0xb3, 0x82, 0x1a, 0x50, 0xf1, 0x06, 0x9e, 0x63, 0x56, 0xbb, 0x17, 0xd0,
+	0x5c, 0xdf, 0x9c, 0x6f, 0xb2, 0xcd, 0x4c, 0x68, 0xf5, 0x07, 0xde, 0x0f, 0xee, 0xab, 0xb1, 0x73,
+	0xc6, 0x69, 0x96, 0x38, 0xeb, 0xd7, 0x43, 0x57, 0x4d, 0x35, 0x4e, 0x74, 0x35, 0xb5, 0x4d, 0x9d,
+	0x03, 0x5e, 0x3a, 0x3c, 0x09, 0xe5, 0x51, 0xe6, 0x00, 0x7f, 0xd8, 0x57, 0xd3, 0x4a, 0xf7, 0x6f,
+	0x1d, 0x0c, 0x11, 0xe8, 0x88, 0xe0, 0x90, 0xa4, 0xbc, 0xc4, 0x57, 0xf5, 0xa7, 0x47, 0x21, 0x7a,
+	0x0a, 0x8d, 0x40, 0xe5, 0x24, 0x04, 0xdf, 0xb6, 0xef, 0x65, 0x3f, 0xbe, 0xa0, 0xb5, 0xea, 0x13,
+	0x2b, 0x67, 0xf4, 0x1c, 0x5a, 0x74, 0x71, 0x3e, 0x5e, 0x81, 0xcb, 0x02, 0x7c, 0xbf, 0x00, 0xce,
+	0x09, 0xa6, 0xf0, 0x06, 0x5d, 0x9b, 0xd0, 0x63, 0xd5, 0x9e, 0x2a, 0x02, 0xfa, 0x71, 0x01, 0xfa,
+	0x4e, 0x6f, 0x7a, 0x08, 0x2d, 0xfe, 0x1d, 0x2f, 0x49, 0x4a, 0xf9, 0x19, 0x96, 0x87, 0xdc, 0xe0,
+	0xb6, 0x33, 0x69, 0x42, 0x4f, 0xa1, 0x99, 0xe2, 0x88, 0x92, 0x70, 0xcc, 0xa8, 0x38, 0xe3, 0x86,
+	0xdd, 0xb1, 0xe4, 0x43, 0xcc, 0xca, 0x1e, 0x62, 0xd6, 0x28, 0x7b, 0x88, 0xf9, 0x0d, 0xe9, 0x3c,
+	0xa2, 0xe8, 0x19, 0xaf, 0x9f, 0x24, 0x4e, 0x99, 0x84, 0xd6, 0x3f, 0x08, 0x85, 0xcc, 0x7d, 0x44,
+	0xbb, 0x7f, 0xe8, 0x50, 0x95, 0x05, 0xff, 0x18, 0x6a, 0x97, 0x42, 0x65, 0x75, 0x19, 0xde, 0x29,
+	0x64, 0x24, 0x7f, 0x80, 0xaf, 0x5c, 0xd0, 0x01, 0xb4, 0x02, 0xf1, 0x08, 0x93, 0x0d, 0x4f, 0x35,
+	0xf9, 0x3b, 0x37, 0x3c, 0xd0, 0x8e, 0x4a, 0xbe, 0x11, 0xe4, 0x9e, 0x74, 0x3d, 0x68, 0x5e, 0x25,
+	0x91, 0x82, 0x95, 0x05, 0xcc, 0xdc, 0x6c, 0xed, 0x47, 0x25, 0xbf, 0x71, 0x95, 0xdd, 0x73, 0x36,
+	0xc0, 0x0a, 0x60, 0x0b, 0xb5, 0x0d, 0x7b, 0x77, 0x13, 0x61, 0x1f, 0x95, 0xfc, 0xe6, 0xd5, 0xea,
+	0xea, 0x38, 0x80, 0x56, 0xbe, 0x1f, 0x0b, 0xb9, 0x73, 0xf4, 0x72, 0x6d, 0x94, 0xd3, 0xcb, 0x75,
+	0x68, 0x4e, 0x2f, 0x4d, 0x02, 0x05, 0xab, 0x15, 0xe9, 0x65, 0xbd, 0x84, 0xd3, 0x4b, 0x93, 0x40,
+	0x8c, 0x5f, 0xb4, 0x00, 0x64, 0xcf, 0xe7, 0xff, 0xf2, 0x85, 0x03, 0x77, 0xe2, 0x74, 0x62, 0xc5,
+	0x09, 0x99, 0x07, 0x71, 0x1a, 0x2a, 0xe4, 0xcf, 0xd6, 0x24, 0x62, 0x97, 0x8b, 0x73, 0xde, 0x5c,
+	0x7a, 0xd9, 0x5a, 0x4f, 0xae, 0x3d, 0x51, 0x6f, 0xe8, 0xe5, 0xd7, 0xbd, 0x49, 0xac, 0x6c, 0xe7,
+	0x35, 0x61, 0xfc, 0xea, 0xdf, 0x00, 0x00, 0x00, 0xff, 0xff, 0x4e, 0xd5, 0xe2, 0x3b, 0xe5, 0x0b,
+	0x00, 0x00,
 }
diff --git a/vendor/modules.txt b/vendor/modules.txt
index 155b102..5448a90 100644
--- a/vendor/modules.txt
+++ b/vendor/modules.txt
@@ -7,6 +7,8 @@
 github.com/aead/cmac/aes
 # github.com/armon/go-metrics v0.0.0-20190430140413-ec5e00d3c878
 github.com/armon/go-metrics
+# github.com/boguslaw-wojcik/crc32a v1.0.0
+github.com/boguslaw-wojcik/crc32a
 # github.com/bsm/sarama-cluster v2.1.15+incompatible
 github.com/bsm/sarama-cluster
 # github.com/buraksezer/consistent v0.0.0-20191006190839-693edf70fd72
@@ -74,7 +76,7 @@
 # github.com/opencord/omci-lib-go v0.15.0
 github.com/opencord/omci-lib-go
 github.com/opencord/omci-lib-go/generated
-# github.com/opencord/voltha-lib-go/v4 v4.0.6
+# github.com/opencord/voltha-lib-go/v4 v4.0.8
 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/adapters/common
@@ -89,7 +91,7 @@
 github.com/opencord/voltha-lib-go/v4/pkg/probe
 github.com/opencord/voltha-lib-go/v4/pkg/techprofile
 github.com/opencord/voltha-lib-go/v4/pkg/version
-# github.com/opencord/voltha-protos/v4 v4.0.11
+# github.com/opencord/voltha-protos/v4 v4.0.12
 github.com/opencord/voltha-protos/v4/go/common
 github.com/opencord/voltha-protos/v4/go/ext/config
 github.com/opencord/voltha-protos/v4/go/extension