diff --git a/vendor/github.com/cboling/omci/layers.go b/vendor/github.com/cboling/omci/layers.go
new file mode 100644
index 0000000..f895f14
--- /dev/null
+++ b/vendor/github.com/cboling/omci/layers.go
@@ -0,0 +1,197 @@
+/*
+ * Copyright (c) 2018 - present.  Boling Consulting Solutions (bcsw.net)
+ *
+ * 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 omci
+
+import (
+	"errors"
+	me "github.com/cboling/omci/generated"
+	"github.com/google/gopacket"
+)
+
+var nextLayerMapping map[MessageType]gopacket.LayerType
+
+var (
+	LayerTypeCreateRequest                gopacket.LayerType
+	LayerTypeDeleteRequest                gopacket.LayerType
+	LayerTypeSetRequest                   gopacket.LayerType
+	LayerTypeGetRequest                   gopacket.LayerType
+	LayerTypeGetAllAlarmsRequest          gopacket.LayerType
+	LayerTypeGetAllAlarmsNextRequest      gopacket.LayerType
+	LayerTypeMibUploadRequest             gopacket.LayerType
+	LayerTypeMibUploadNextRequest         gopacket.LayerType
+	LayerTypeMibResetRequest              gopacket.LayerType
+	LayerTypeTestRequest                  gopacket.LayerType
+	LayerTypeStartSoftwareDownloadRequest gopacket.LayerType
+	LayerTypeDownloadSectionRequest       gopacket.LayerType
+	LayerTypeDownloadSectionLastRequest   gopacket.LayerType
+	LayerTypeEndSoftwareDownloadRequest   gopacket.LayerType
+	LayerTypeActivateSoftwareRequest      gopacket.LayerType
+	LayerTypeCommitSoftwareRequest        gopacket.LayerType
+	LayerTypeSynchronizeTimeRequest       gopacket.LayerType
+	LayerTypeRebootRequest                gopacket.LayerType
+	LayerTypeGetNextRequest               gopacket.LayerType
+	LayerTypeGetCurrentDataRequest        gopacket.LayerType
+	LayerTypeSetTableRequest              gopacket.LayerType
+)
+var (
+	LayerTypeCreateResponse                gopacket.LayerType
+	LayerTypeDeleteResponse                gopacket.LayerType
+	LayerTypeSetResponse                   gopacket.LayerType
+	LayerTypeGetResponse                   gopacket.LayerType
+	LayerTypeGetAllAlarmsResponse          gopacket.LayerType
+	LayerTypeGetAllAlarmsNextResponse      gopacket.LayerType
+	LayerTypeMibUploadResponse             gopacket.LayerType
+	LayerTypeMibUploadNextResponse         gopacket.LayerType
+	LayerTypeMibResetResponse              gopacket.LayerType
+	LayerTypeAlarmNotification             gopacket.LayerType
+	LayerTypeAttributeValueChange          gopacket.LayerType
+	LayerTypeTestResponse                  gopacket.LayerType
+	LayerTypeStartSoftwareDownloadResponse gopacket.LayerType
+	LayerTypeDownloadSectionResponse       gopacket.LayerType
+	LayerTypeEndSoftwareDownloadResponse   gopacket.LayerType
+	LayerTypeActivateSoftwareResponse      gopacket.LayerType
+	LayerTypeCommitSoftwareResponse        gopacket.LayerType
+	LayerTypeSynchronizeTimeResponse       gopacket.LayerType
+	LayerTypeRebootResponse                gopacket.LayerType
+	LayerTypeGetNextResponse               gopacket.LayerType
+	LayerTypeTestResult                    gopacket.LayerType
+	LayerTypeGetCurrentDataResponse        gopacket.LayerType
+	LayerTypeSetTableResponse              gopacket.LayerType
+)
+
+func mkReqLayer(mt me.MsgType, mts string, decode gopacket.DecodeFunc) gopacket.LayerType {
+	return gopacket.RegisterLayerType(1000+(int(mt)|int(me.AR)),
+		gopacket.LayerTypeMetadata{Name: mts, Decoder: decode})
+}
+
+func mkRespLayer(mt me.MsgType, mts string, decode gopacket.DecodeFunc) gopacket.LayerType {
+	return gopacket.RegisterLayerType(1000+(int(mt)|int(me.AK)),
+		gopacket.LayerTypeMetadata{Name: mts, Decoder: decode})
+}
+
+func mkLayer(mt me.MsgType, mts string, decode gopacket.DecodeFunc) gopacket.LayerType {
+	return gopacket.RegisterLayerType(1000+(int(mt)),
+		gopacket.LayerTypeMetadata{Name: mts, Decoder: decode})
+}
+
+func init() {
+	// Create layers for message_type & action
+	LayerTypeCreateRequest = mkReqLayer(me.Create, "CreateRequest", gopacket.DecodeFunc(decodeCreateRequest))
+	LayerTypeDeleteRequest = mkReqLayer(me.Delete, "DeleteRequest", gopacket.DecodeFunc(decodeDeleteRequest))
+	LayerTypeSetRequest = mkReqLayer(me.Set, "SetRequest", gopacket.DecodeFunc(decodeSetRequest))
+	LayerTypeGetRequest = mkReqLayer(me.Get, "GetRequest", gopacket.DecodeFunc(decodeGetRequest))
+	LayerTypeGetAllAlarmsRequest = mkReqLayer(me.GetAllAlarms, "GetAllAlarmsRequest", gopacket.DecodeFunc(decodeGetAllAlarmsRequest))
+	LayerTypeGetAllAlarmsNextRequest = mkReqLayer(me.GetAllAlarmsNext, "GetAllAlarmsNextRequest", gopacket.DecodeFunc(decodeGetAllAlarmsNextRequest))
+	LayerTypeMibUploadRequest = mkReqLayer(me.MibUpload, "MibUploadRequest", gopacket.DecodeFunc(decodeMibUploadRequest))
+	LayerTypeMibUploadNextRequest = mkReqLayer(me.MibUploadNext, "MibUploadNextRequest", gopacket.DecodeFunc(decodeMibUploadNextRequest))
+	LayerTypeMibResetRequest = mkReqLayer(me.MibReset, "MibResetRequest", gopacket.DecodeFunc(decodeMibResetRequest))
+	LayerTypeTestRequest = mkReqLayer(me.Test, "TestRequest", gopacket.DecodeFunc(decodeTestRequest))
+	LayerTypeStartSoftwareDownloadRequest = mkReqLayer(me.StartSoftwareDownload, "StartSoftwareDownloadRequest", gopacket.DecodeFunc(decodeStartSoftwareDownloadRequest))
+
+	// For Download section, AR=0 if not response expected, AR=1 if response expected (last section of a window)
+	LayerTypeDownloadSectionRequest = mkLayer(me.DownloadSection, "DownloadSectionRequest", gopacket.DecodeFunc(decodeDownloadSectionRequest))
+	LayerTypeDownloadSectionLastRequest = mkReqLayer(me.DownloadSection, "DownloadLastSectionRequest", gopacket.DecodeFunc(decodeDownloadSectionRequest))
+	LayerTypeEndSoftwareDownloadRequest = mkReqLayer(me.EndSoftwareDownload, "EndSoftwareDownloadRequest", gopacket.DecodeFunc(decodeEndSoftwareDownloadRequest))
+	LayerTypeActivateSoftwareRequest = mkReqLayer(me.ActivateSoftware, "ActivateSoftwareRequest", gopacket.DecodeFunc(decodeActivateSoftwareRequest))
+	LayerTypeCommitSoftwareRequest = mkReqLayer(me.CommitSoftware, "CommitSoftwareRequest", gopacket.DecodeFunc(decodeCommitSoftwareRequest))
+	LayerTypeSynchronizeTimeRequest = mkReqLayer(me.SynchronizeTime, "SynchronizeTimeRequest", gopacket.DecodeFunc(decodeSynchronizeTimeRequest))
+	LayerTypeRebootRequest = mkReqLayer(me.Reboot, "RebootRequest", gopacket.DecodeFunc(decodeRebootRequest))
+	LayerTypeGetNextRequest = mkReqLayer(me.GetNext, "GetNextRequest", gopacket.DecodeFunc(decodeGetNextRequest))
+	LayerTypeGetCurrentDataRequest = mkReqLayer(me.GetCurrentData, "GetCurrentDataRequest", gopacket.DecodeFunc(decodeGetCurrentDataRequest))
+	LayerTypeSetTableRequest = mkReqLayer(me.SetTable, "SetTableRequest", gopacket.DecodeFunc(decodeSetTableRequest))
+
+	LayerTypeCreateResponse = mkRespLayer(me.Create, "CreateResponse", gopacket.DecodeFunc(decodeCreateResponse))
+	LayerTypeDeleteResponse = mkRespLayer(me.Delete, "DeleteResponse", gopacket.DecodeFunc(decodeDeleteResponse))
+	LayerTypeSetResponse = mkRespLayer(me.Set, "SetResponse", gopacket.DecodeFunc(decodeSetResponse))
+	LayerTypeGetResponse = mkRespLayer(me.Get, "GetResponse", gopacket.DecodeFunc(decodeGetResponse))
+	LayerTypeGetAllAlarmsResponse = mkRespLayer(me.GetAllAlarms, "GetAllAlarmsResponse", gopacket.DecodeFunc(decodeGetAllAlarmsResponse))
+	LayerTypeGetAllAlarmsNextResponse = mkRespLayer(me.GetAllAlarmsNext, "GetAllAlarmsNextResponse", gopacket.DecodeFunc(decodeGetAllAlarmsNextResponse))
+	LayerTypeMibUploadResponse = mkRespLayer(me.MibUpload, "MibUploadResponse", gopacket.DecodeFunc(decodeMibUploadResponse))
+	LayerTypeMibUploadNextResponse = mkRespLayer(me.MibUploadNext, "MibUploadNextResponse", gopacket.DecodeFunc(decodeMibUploadNextResponse))
+	LayerTypeMibResetResponse = mkRespLayer(me.MibReset, "MibResetResponse", gopacket.DecodeFunc(decodeMibResetResponse))
+	LayerTypeAlarmNotification = mkLayer(me.AlarmNotification, "AlarmNotification", gopacket.DecodeFunc(decodeAlarmNotification))
+	LayerTypeAttributeValueChange = mkLayer(me.AttributeValueChange, "AttributeValueChange", gopacket.DecodeFunc(decodeAttributeValueChange))
+	LayerTypeTestResponse = mkRespLayer(me.Test, "TestResponse", gopacket.DecodeFunc(decodeTestResponse))
+	LayerTypeStartSoftwareDownloadResponse = mkRespLayer(me.StartSoftwareDownload, "StartSoftwareDownloadResponse", gopacket.DecodeFunc(decodeStartSoftwareDownloadResponse))
+	LayerTypeDownloadSectionResponse = mkRespLayer(me.DownloadSection, "DownloadSectionResponse", gopacket.DecodeFunc(decodeDownloadSectionResponse))
+	LayerTypeEndSoftwareDownloadResponse = mkRespLayer(me.EndSoftwareDownload, "EndSoftwareDownloadResponse", gopacket.DecodeFunc(decodeEndSoftwareDownloadResponse))
+	LayerTypeActivateSoftwareResponse = mkRespLayer(me.ActivateSoftware, "ActivateSoftwareResponse", gopacket.DecodeFunc(decodeActivateSoftwareResponse))
+	LayerTypeCommitSoftwareResponse = mkRespLayer(me.CommitSoftware, "CommitSoftwareResponse", gopacket.DecodeFunc(decodeCommitSoftwareResponse))
+	LayerTypeSynchronizeTimeResponse = mkRespLayer(me.SynchronizeTime, "SynchronizeTimeResponse", gopacket.DecodeFunc(decodeSynchronizeTimeResponse))
+	LayerTypeRebootResponse = mkRespLayer(me.Reboot, "RebootResponse", gopacket.DecodeFunc(decodeRebootResponse))
+	LayerTypeGetNextResponse = mkRespLayer(me.GetNext, "GetNextResponse", gopacket.DecodeFunc(decodeGetNextResponse))
+	LayerTypeTestResult = mkRespLayer(me.TestResult, "TestResult", gopacket.DecodeFunc(decodeTestResult))
+	LayerTypeGetCurrentDataResponse = mkRespLayer(me.GetCurrentData, "GetCurrentDataResponse", gopacket.DecodeFunc(decodeGetCurrentDataResponse))
+	LayerTypeSetTableResponse = mkRespLayer(me.SetTable, "SetTableResponse", gopacket.DecodeFunc(decodeSetTableResponse))
+
+	// Map message_type and action to layer
+	nextLayerMapping = make(map[MessageType]gopacket.LayerType)
+
+	nextLayerMapping[CreateRequestType] = LayerTypeCreateRequest
+	nextLayerMapping[DeleteRequestType] = LayerTypeDeleteRequest
+	nextLayerMapping[SetRequestType] = LayerTypeSetRequest
+	nextLayerMapping[GetRequestType] = LayerTypeGetRequest
+	nextLayerMapping[GetAllAlarmsRequestType] = LayerTypeGetAllAlarmsRequest
+	nextLayerMapping[GetAllAlarmsNextRequestType] = LayerTypeGetAllAlarmsNextRequest
+	nextLayerMapping[MibUploadRequestType] = LayerTypeMibUploadRequest
+	nextLayerMapping[MibUploadNextRequestType] = LayerTypeMibUploadNextRequest
+	nextLayerMapping[MibResetRequestType] = LayerTypeMibResetRequest
+	nextLayerMapping[TestRequestType] = LayerTypeTestRequest
+	nextLayerMapping[StartSoftwareDownloadRequestType] = LayerTypeStartSoftwareDownloadRequest
+	nextLayerMapping[DownloadSectionRequestType] = LayerTypeDownloadSectionRequest
+	nextLayerMapping[EndSoftwareDownloadRequestType] = LayerTypeEndSoftwareDownloadRequest
+	nextLayerMapping[ActivateSoftwareRequestType] = LayerTypeActivateSoftwareRequest
+	nextLayerMapping[CommitSoftwareRequestType] = LayerTypeCommitSoftwareRequest
+	nextLayerMapping[SynchronizeTimeRequestType] = LayerTypeSynchronizeTimeRequest
+	nextLayerMapping[RebootRequestType] = LayerTypeRebootRequest
+	nextLayerMapping[GetNextRequestType] = LayerTypeGetNextRequest
+	nextLayerMapping[GetCurrentDataRequestType] = LayerTypeGetCurrentDataRequest
+	nextLayerMapping[SetTableRequestType] = LayerTypeSetTableRequest
+
+	nextLayerMapping[CreateResponseType] = LayerTypeCreateResponse
+	nextLayerMapping[DeleteResponseType] = LayerTypeDeleteResponse
+	nextLayerMapping[SetResponseType] = LayerTypeSetResponse
+	nextLayerMapping[GetResponseType] = LayerTypeGetResponse
+	nextLayerMapping[GetAllAlarmsResponseType] = LayerTypeGetAllAlarmsResponse
+	nextLayerMapping[GetAllAlarmsNextResponseType] = LayerTypeGetAllAlarmsNextResponse
+	nextLayerMapping[MibUploadResponseType] = LayerTypeMibUploadResponse
+	nextLayerMapping[MibUploadNextResponseType] = LayerTypeMibUploadNextResponse
+	nextLayerMapping[MibResetResponseType] = LayerTypeMibResetResponse
+	nextLayerMapping[TestResponseType] = LayerTypeTestResponse
+	nextLayerMapping[StartSoftwareDownloadResponseType] = LayerTypeStartSoftwareDownloadResponse
+	nextLayerMapping[DownloadSectionResponseType] = LayerTypeDownloadSectionResponse
+	nextLayerMapping[EndSoftwareDownloadResponseType] = LayerTypeEndSoftwareDownloadResponse
+	nextLayerMapping[ActivateSoftwareResponseType] = LayerTypeActivateSoftwareResponse
+	nextLayerMapping[CommitSoftwareResponseType] = LayerTypeCommitSoftwareResponse
+	nextLayerMapping[SynchronizeTimeResponseType] = LayerTypeSynchronizeTimeResponse
+	nextLayerMapping[RebootResponseType] = LayerTypeRebootResponse
+	nextLayerMapping[GetNextResponseType] = LayerTypeGetNextResponse
+	nextLayerMapping[GetCurrentDataResponseType] = LayerTypeGetCurrentDataResponse
+	nextLayerMapping[SetTableResponseType] = LayerTypeSetTableResponse
+
+	nextLayerMapping[AttributeValueChangeType] = LayerTypeAttributeValueChange
+	nextLayerMapping[AlarmNotificationType] = LayerTypeAlarmNotification
+	nextLayerMapping[TestResultType] = LayerTypeTestResult
+}
+
+func MsgTypeToNextLayer(mt MessageType) (gopacket.LayerType, error) {
+	nextLayer, ok := nextLayerMapping[mt]
+	if ok {
+		return nextLayer, nil
+	}
+	return gopacket.LayerTypeZero, errors.New("unknown message type")
+}