diff --git a/internal/pkg/commands/logicaldevices.go b/internal/pkg/commands/logicaldevices.go
new file mode 100644
index 0000000..91bd7e1
--- /dev/null
+++ b/internal/pkg/commands/logicaldevices.go
@@ -0,0 +1,312 @@
+/*
+ * Copyright 2019-present Ciena Corporation
+ *
+ * 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 commands
+
+import (
+	"context"
+	"fmt"
+	"github.com/ciena/voltctl/pkg/format"
+	"github.com/ciena/voltctl/pkg/model"
+	"github.com/fullstorydev/grpcurl"
+	flags "github.com/jessevdk/go-flags"
+	"github.com/jhump/protoreflect/dynamic"
+	"strings"
+)
+
+const (
+	DEFAULT_LOGICAL_DEVICE_FORMAT         = "table{{ .Id }}\t{{.DatapathId}}\t{{.RootDeviceId}}\t{{.SerialNumber}}\t{{.Features.NBuffers}}\t{{.Features.NTables}}\t{{.Features.Capabilities}}"
+	DEFAULT_LOGICAL_DEVICE_PORT_FORMAT    = "table{{.Id}}\t{{.DeviceId}}\t{{.DevicePortNo}}\t{{.RootPort}}\t{{.Openflow.PortNo}}\t{{.Openflow.HwAddr}}\t{{.Openflow.Name}}\t{{.Openflow.State}}\t{{.Openflow.Features.Current}}\t{{.Openflow.Bitrate.Current}}"
+	DEFAULT_LOGICAL_DEVICE_INSPECT_FORMAT = `ID: {{.Id}}
+  DATAPATHID: {{.DatapathId}}
+  ROOTDEVICEID: {{.RootDeviceId}}
+  SERIALNUMNER: {{.SerialNumber}}`
+)
+
+type LogicalDeviceId string
+
+type LogicalDeviceList struct {
+	ListOutputOptions
+}
+
+type LogicalDeviceFlowList struct {
+	ListOutputOptions
+	Args struct {
+		Id LogicalDeviceId `positional-arg-name:"DEVICE_ID" required:"yes"`
+	} `positional-args:"yes"`
+}
+
+type LogicalDevicePortList struct {
+	ListOutputOptions
+	Args struct {
+		Id LogicalDeviceId `positional-arg-name:"DEVICE_ID" required:"yes"`
+	} `positional-args:"yes"`
+}
+
+type LogicalDeviceInspect struct {
+	OutputOptionsJson
+	Args struct {
+		Id LogicalDeviceId `positional-arg-name:"DEVICE_ID" required:"yes"`
+	} `positional-args:"yes"`
+}
+
+type LogicalDeviceOpts struct {
+	List    LogicalDeviceList     `command:"list"`
+	Flows   LogicalDeviceFlowList `command:"flows"`
+	Ports   LogicalDevicePortList `command:"ports"`
+	Inspect LogicalDeviceInspect  `command:"inspect"`
+}
+
+var logicalDeviceOpts = LogicalDeviceOpts{}
+
+func RegisterLogicalDeviceCommands(parser *flags.Parser) {
+	parser.AddCommand("logicaldevice", "logical device commands", "Commands to query and manipulate VOLTHA logical devices", &logicalDeviceOpts)
+}
+
+func (i *LogicalDeviceId) Complete(match string) []flags.Completion {
+	conn, err := NewConnection()
+	if err != nil {
+		return nil
+	}
+	defer conn.Close()
+
+	descriptor, method, err := GetMethod("logical-device-list")
+	if err != nil {
+		return nil
+	}
+
+	ctx, cancel := context.WithTimeout(context.Background(), GlobalConfig.Grpc.Timeout)
+	defer cancel()
+
+	h := &RpcEventHandler{}
+	err = grpcurl.InvokeRPC(ctx, descriptor, conn, method, []string{}, h, h.GetParams)
+	if err != nil {
+		return nil
+	}
+
+	if h.Status != nil && h.Status.Err() != nil {
+		return nil
+	}
+
+	d, err := dynamic.AsDynamicMessage(h.Response)
+	if err != nil {
+		return nil
+	}
+
+	items, err := d.TryGetFieldByName("items")
+	if err != nil {
+		return nil
+	}
+
+	list := make([]flags.Completion, 0)
+	for _, item := range items.([]interface{}) {
+		val := item.(*dynamic.Message)
+		id := val.GetFieldByName("id").(string)
+		if strings.HasPrefix(id, match) {
+			list = append(list, flags.Completion{Item: id})
+		}
+	}
+
+	return list
+}
+
+func (options *LogicalDeviceList) Execute(args []string) error {
+
+	conn, err := NewConnection()
+	if err != nil {
+		return err
+	}
+	defer conn.Close()
+
+	descriptor, method, err := GetMethod("logical-device-list")
+	if err != nil {
+		return err
+	}
+
+	ctx, cancel := context.WithTimeout(context.Background(), GlobalConfig.Grpc.Timeout)
+	defer cancel()
+
+	h := &RpcEventHandler{}
+	err = grpcurl.InvokeRPC(ctx, descriptor, conn, method, []string{}, h, h.GetParams)
+	if err != nil {
+		return err
+	}
+
+	if h.Status != nil && h.Status.Err() != nil {
+		return h.Status.Err()
+	}
+
+	d, err := dynamic.AsDynamicMessage(h.Response)
+	if err != nil {
+		return err
+	}
+
+	items, err := d.TryGetFieldByName("items")
+	if err != nil {
+		return err
+	}
+
+	outputFormat := CharReplacer.Replace(options.Format)
+	if outputFormat == "" {
+		outputFormat = DEFAULT_LOGICAL_DEVICE_FORMAT
+	}
+	if options.Quiet {
+		outputFormat = "{{.Id}}"
+	}
+
+	data := make([]model.LogicalDevice, len(items.([]interface{})))
+	for i, item := range items.([]interface{}) {
+		data[i].PopulateFrom(item.(*dynamic.Message))
+	}
+
+	result := CommandResult{
+		Format:    format.Format(outputFormat),
+		Filter:    options.Filter,
+		OrderBy:   options.OrderBy,
+		OutputAs:  toOutputType(options.OutputAs),
+		NameLimit: options.NameLimit,
+		Data:      data,
+	}
+
+	GenerateOutput(&result)
+	return nil
+}
+
+func (options *LogicalDevicePortList) Execute(args []string) error {
+
+	conn, err := NewConnection()
+	if err != nil {
+		return err
+	}
+	defer conn.Close()
+
+	descriptor, method, err := GetMethod("logical-device-ports")
+	if err != nil {
+		return err
+	}
+
+	ctx, cancel := context.WithTimeout(context.Background(), GlobalConfig.Grpc.Timeout)
+	defer cancel()
+
+	h := &RpcEventHandler{
+		Fields: map[string]map[string]interface{}{ParamNames[GlobalConfig.ApiVersion]["ID"]: {"id": options.Args.Id}},
+	}
+	err = grpcurl.InvokeRPC(ctx, descriptor, conn, method, []string{}, h, h.GetParams)
+	if err != nil {
+		return err
+	}
+
+	if h.Status != nil && h.Status.Err() != nil {
+		return h.Status.Err()
+	}
+
+	d, err := dynamic.AsDynamicMessage(h.Response)
+	if err != nil {
+		return err
+	}
+
+	items, err := d.TryGetFieldByName("items")
+	if err != nil {
+		return err
+	}
+
+	outputFormat := CharReplacer.Replace(options.Format)
+	if outputFormat == "" {
+		outputFormat = DEFAULT_LOGICAL_DEVICE_PORT_FORMAT
+	}
+	if options.Quiet {
+		outputFormat = "{{.Id}}"
+	}
+
+	data := make([]model.LogicalPort, len(items.([]interface{})))
+	for i, item := range items.([]interface{}) {
+		data[i].PopulateFrom(item.(*dynamic.Message))
+	}
+
+	result := CommandResult{
+		Format:    format.Format(outputFormat),
+		Filter:    options.Filter,
+		OrderBy:   options.OrderBy,
+		OutputAs:  toOutputType(options.OutputAs),
+		NameLimit: options.NameLimit,
+		Data:      data,
+	}
+
+	GenerateOutput(&result)
+	return nil
+}
+
+func (options *LogicalDeviceFlowList) Execute(args []string) error {
+	fl := &FlowList{}
+	fl.ListOutputOptions = options.ListOutputOptions
+	fl.Args.Id = string(options.Args.Id)
+	fl.Method = "logical-device-flow-list"
+	return fl.Execute(args)
+}
+
+func (options *LogicalDeviceInspect) Execute(args []string) error {
+	if len(args) > 0 {
+		return fmt.Errorf("only a single argument 'DEVICE_ID' can be provided")
+	}
+
+	conn, err := NewConnection()
+	if err != nil {
+		return err
+	}
+	defer conn.Close()
+
+	descriptor, method, err := GetMethod("logical-device-inspect")
+	if err != nil {
+		return err
+	}
+
+	ctx, cancel := context.WithTimeout(context.Background(), GlobalConfig.Grpc.Timeout)
+	defer cancel()
+
+	h := &RpcEventHandler{
+		Fields: map[string]map[string]interface{}{ParamNames[GlobalConfig.ApiVersion]["ID"]: {"id": options.Args.Id}},
+	}
+	err = grpcurl.InvokeRPC(ctx, descriptor, conn, method, []string{"Get-Depth: 2"}, h, h.GetParams)
+	if err != nil {
+		return err
+	} else if h.Status != nil && h.Status.Err() != nil {
+		return h.Status.Err()
+	}
+
+	d, err := dynamic.AsDynamicMessage(h.Response)
+	if err != nil {
+		return err
+	}
+
+	device := &model.LogicalDevice{}
+	device.PopulateFrom(d)
+
+	outputFormat := CharReplacer.Replace(options.Format)
+	if outputFormat == "" {
+		outputFormat = DEFAULT_LOGICAL_DEVICE_INSPECT_FORMAT
+	}
+	if options.Quiet {
+		outputFormat = "{{.Id}}"
+	}
+
+	result := CommandResult{
+		Format:    format.Format(outputFormat),
+		OutputAs:  toOutputType(options.OutputAs),
+		NameLimit: options.NameLimit,
+		Data:      device,
+	}
+	GenerateOutput(&result)
+	return nil
+}