diff --git a/app/src/main/java/org/opencord/olt/cli/ShowBpMeterMappingsCommand.java b/app/src/main/java/org/opencord/olt/cli/ShowBpMeterMappingsCommand.java
index 83b518f..630ae4a 100644
--- a/app/src/main/java/org/opencord/olt/cli/ShowBpMeterMappingsCommand.java
+++ b/app/src/main/java/org/opencord/olt/cli/ShowBpMeterMappingsCommand.java
@@ -19,10 +19,10 @@
 import org.apache.karaf.shell.commands.Command;
 import org.onosproject.cli.AbstractShellCommand;
 import org.onosproject.net.meter.MeterKey;
-import org.opencord.olt.AccessDeviceService;
+import org.opencord.olt.internalapi.AccessDeviceMeterService;
 
-import java.util.List;
 import java.util.Map;
+import java.util.Set;
 
 @Command(scope = "onos", name = "volt-bpmeter-mappings",
         description = "Shows information about bandwidthProfile-meterKey (device / meter) mappings")
@@ -30,12 +30,12 @@
 
     @Override
     protected void execute() {
-        AccessDeviceService service = AbstractShellCommand.get(AccessDeviceService.class);
-        Map<String, List<MeterKey>> bpMeterMappings = service.getBpMeterMappings();
+        AccessDeviceMeterService service = AbstractShellCommand.get(AccessDeviceMeterService.class);
+        Map<String, Set<MeterKey>> bpMeterMappings = service.getBpMeterMappings();
         bpMeterMappings.forEach(this::display);
     }
 
-    private void display(String bpInfo, List<MeterKey> meterKeyList) {
+    private void display(String bpInfo, Set<MeterKey> meterKeyList) {
         meterKeyList.forEach(meterKey ->
                 print("bpInfo=%s deviceId=%s meterId=%s",
                         bpInfo, meterKey.deviceId(), meterKey.meterId()));
diff --git a/app/src/main/java/org/opencord/olt/cli/ShowOltCommand.java b/app/src/main/java/org/opencord/olt/cli/ShowOltCommand.java
index d01e8e2..0c0441f 100644
--- a/app/src/main/java/org/opencord/olt/cli/ShowOltCommand.java
+++ b/app/src/main/java/org/opencord/olt/cli/ShowOltCommand.java
@@ -30,8 +30,6 @@
     @Override
     protected void execute() {
         AccessDeviceService service = AbstractShellCommand.get(AccessDeviceService.class);
-        service.fetchOlts().forEach(did -> {
-            print("OLT %s", did);
-        });
+        service.fetchOlts().forEach(did -> print("OLT %s", did));
     }
 }
diff --git a/app/src/main/java/org/opencord/olt/cli/ShowProgrammedMetersCommand.java b/app/src/main/java/org/opencord/olt/cli/ShowProgrammedMetersCommand.java
index 6fa8c9d..6615002 100644
--- a/app/src/main/java/org/opencord/olt/cli/ShowProgrammedMetersCommand.java
+++ b/app/src/main/java/org/opencord/olt/cli/ShowProgrammedMetersCommand.java
@@ -19,7 +19,7 @@
 import org.apache.karaf.shell.commands.Command;
 import org.onosproject.cli.AbstractShellCommand;
 import org.onosproject.net.meter.MeterKey;
-import org.opencord.olt.AccessDeviceService;
+import org.opencord.olt.internalapi.AccessDeviceMeterService;
 
 import java.util.Set;
 
@@ -33,7 +33,7 @@
 
     @Override
     protected void execute() {
-        AccessDeviceService service = AbstractShellCommand.get(AccessDeviceService.class);
+        AccessDeviceMeterService service = AbstractShellCommand.get(AccessDeviceMeterService.class);
         Set<MeterKey> programmedMeters = service.getProgMeters();
         programmedMeters.forEach(this::display);
     }
diff --git a/app/src/main/java/org/opencord/olt/cli/ShowProgrammedSubscribersCommand.java b/app/src/main/java/org/opencord/olt/cli/ShowProgrammedSubscribersCommand.java
index 2a4409e..be2b6dd 100644
--- a/app/src/main/java/org/opencord/olt/cli/ShowProgrammedSubscribersCommand.java
+++ b/app/src/main/java/org/opencord/olt/cli/ShowProgrammedSubscribersCommand.java
@@ -17,12 +17,13 @@
 package org.opencord.olt.cli;
 
 import java.util.Map;
+import java.util.Set;
 
 import org.apache.karaf.shell.commands.Command;
 import org.onosproject.cli.AbstractShellCommand;
 import org.onosproject.net.ConnectPoint;
 import org.opencord.olt.AccessDeviceService;
-import org.opencord.sadis.SubscriberAndDeviceInformation;
+import org.opencord.sadis.UniTagInformation;
 
 /**
  * Shows subscriber information for those subscriber which have been programmed
@@ -35,11 +36,12 @@
     @Override
     protected void execute() {
         AccessDeviceService service = AbstractShellCommand.get(AccessDeviceService.class);
-        Map<ConnectPoint, SubscriberAndDeviceInformation> info = service.getProgSubs();
+        Map<ConnectPoint, Set<UniTagInformation>> info = service.getProgSubs();
         info.forEach(this::display);
     }
 
-    private void display(ConnectPoint cp, SubscriberAndDeviceInformation sub) {
-        print("location=%s subscriber=%s", cp, sub);
+    private void display(ConnectPoint cp, Set<UniTagInformation> uniTagInformation) {
+        uniTagInformation.forEach(uniTag ->
+                print("location=%s tagInformation=%s", cp, uniTag));
     }
 }
diff --git a/app/src/main/java/org/opencord/olt/cli/ShowSubscribersCommand.java b/app/src/main/java/org/opencord/olt/cli/ShowSubscribersCommand.java
deleted file mode 100644
index 711d1fa..0000000
--- a/app/src/main/java/org/opencord/olt/cli/ShowSubscribersCommand.java
+++ /dev/null
@@ -1,47 +0,0 @@
-/*
- * Copyright 2016-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 org.opencord.olt.cli;
-
-import java.util.Map;
-
-import org.apache.karaf.shell.commands.Command;
-import org.onlab.packet.VlanId;
-import org.onosproject.cli.AbstractShellCommand;
-import org.onosproject.net.ConnectPoint;
-import org.opencord.olt.AccessDeviceService;
-
-/**
- * Shows provisioned (configured) subscribers. The data plane flows for the
- * subscribers may or may not have been programmed.
- */
-@Command(scope = "onos", name = "volt-subscribers",
-        description = "Shows pre-provisioned subscribers")
-public class ShowSubscribersCommand extends AbstractShellCommand {
-
-    private static final String FORMAT = "port=%s, svlan=%s, cvlan=%s";
-
-    @Override
-    protected void execute() {
-        AccessDeviceService service = AbstractShellCommand.get(AccessDeviceService.class);
-        service.getSubscribers().forEach(this::display);
-    }
-
-    private void display(Map.Entry<ConnectPoint, Map.Entry<VlanId, VlanId>> subscriber) {
-        print(FORMAT, subscriber.getKey(), subscriber.getValue().getKey(),
-                subscriber.getValue().getValue());
-    }
-}
diff --git a/app/src/main/java/org/opencord/olt/cli/UniTagAddCommand.java b/app/src/main/java/org/opencord/olt/cli/UniTagAddCommand.java
new file mode 100644
index 0000000..9ea5439
--- /dev/null
+++ b/app/src/main/java/org/opencord/olt/cli/UniTagAddCommand.java
@@ -0,0 +1,63 @@
+/*
+ * Copyright 2016-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 org.opencord.olt.cli;
+
+import org.apache.karaf.shell.commands.Argument;
+import org.apache.karaf.shell.commands.Command;
+import org.apache.karaf.shell.commands.Option;
+import org.onlab.packet.VlanId;
+import org.onosproject.cli.AbstractShellCommand;
+import org.opencord.olt.AccessDeviceService;
+import org.opencord.olt.AccessSubscriberId;
+
+import java.util.Optional;
+
+/**
+ * Adds a subscriber uni tag.
+ */
+@Command(scope = "onos", name = "volt-add-subscriber-unitag",
+        description = "Adds a uni tag to an access device")
+public class UniTagAddCommand extends AbstractShellCommand {
+
+    @Argument(index = 0, name = "portName", description = "Port name",
+            required = true, multiValued = false)
+    private String strPortName = null;
+
+    @Option(name = "--cTag", description = "Inner vlan id",
+            required = false, multiValued = false)
+    private String strCtag = null;
+
+    @Option(name = "--sTag", description = "Outer vlan id",
+            required = false, multiValued = false)
+    private String strStag = null;
+
+    @Option(name = "--tpId", description = "Technology profile id",
+            required = false, multiValued = false)
+    private String strTpId = null;
+
+    @Override
+    protected void execute() {
+
+        AccessDeviceService service = AbstractShellCommand.get(AccessDeviceService.class);
+        AccessSubscriberId portName = new AccessSubscriberId(strPortName);
+
+        Optional<VlanId> cTag = strCtag == null ? Optional.empty() : Optional.of(VlanId.vlanId(strCtag));
+        Optional<VlanId> sTag = strStag == null ? Optional.empty() : Optional.of(VlanId.vlanId(strStag));
+        Optional<Integer> tpId = strTpId == null ? Optional.empty() : Optional.of(Integer.parseInt(strTpId));
+        service.provisionSubscriber(portName, sTag, cTag, tpId);
+    }
+}
diff --git a/app/src/main/java/org/opencord/olt/cli/UniTagRemoveCommand.java b/app/src/main/java/org/opencord/olt/cli/UniTagRemoveCommand.java
new file mode 100644
index 0000000..74d05b7
--- /dev/null
+++ b/app/src/main/java/org/opencord/olt/cli/UniTagRemoveCommand.java
@@ -0,0 +1,63 @@
+/*
+ * Copyright 2016-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 org.opencord.olt.cli;
+
+import org.apache.karaf.shell.commands.Argument;
+import org.apache.karaf.shell.commands.Command;
+import org.apache.karaf.shell.commands.Option;
+import org.onlab.packet.VlanId;
+import org.onosproject.cli.AbstractShellCommand;
+import org.opencord.olt.AccessDeviceService;
+import org.opencord.olt.AccessSubscriberId;
+
+import java.util.Optional;
+
+/**
+ * Removes a uni tag from a subscriber (portname).
+ */
+@Command(scope = "onos", name = "volt-remove-subscriber-unitag",
+        description = "Removes a uni tag from an access device")
+public class UniTagRemoveCommand extends AbstractShellCommand {
+
+    @Argument(index = 0, name = "portName", description = "Port name",
+            required = true, multiValued = false)
+    private String strPortName = null;
+
+    @Option(name = "--cTag", description = "Inner vlan id",
+            required = false, multiValued = false)
+    private String strCtag = null;
+
+    @Option(name = "--sTag", description = "Outer vlan id",
+            required = false, multiValued = false)
+    private String strStag = null;
+
+    @Option(name = "--tpId", description = "Technology profile id",
+            required = false, multiValued = false)
+    private String strTpId = null;
+
+    @Override
+    protected void execute() {
+
+        AccessDeviceService service = AbstractShellCommand.get(AccessDeviceService.class);
+        AccessSubscriberId portName = new AccessSubscriberId(strPortName);
+
+        Optional<VlanId> cTag = strCtag == null ? Optional.empty() : Optional.of(VlanId.vlanId(strCtag));
+        Optional<VlanId> sTag = strStag == null ? Optional.empty() : Optional.of(VlanId.vlanId(strStag));
+        Optional<Integer> tpId = strTpId == null ? Optional.empty() : Optional.of(Integer.parseInt(strTpId));
+        service.removeSubscriber(portName, sTag, cTag, tpId);
+    }
+}