diff --git a/apps/openstacknetworking/src/main/java/org/onosproject/openstacknetworking/cli/ExternalPeerRouterListCommand.java b/apps/openstacknetworking/src/main/java/org/onosproject/openstacknetworking/cli/ExternalPeerRouterListCommand.java
new file mode 100644
index 0000000..ebd949c
--- /dev/null
+++ b/apps/openstacknetworking/src/main/java/org/onosproject/openstacknetworking/cli/ExternalPeerRouterListCommand.java
@@ -0,0 +1,48 @@
+/*
+ * 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 org.onosproject.openstacknetworking.cli;
+
+import com.google.common.collect.Lists;
+import org.apache.karaf.shell.commands.Command;
+import org.onosproject.cli.AbstractShellCommand;
+import org.onosproject.openstacknetworking.api.ExternalPeerRouter;
+import org.onosproject.openstacknetworking.api.OpenstackNetworkService;
+
+import java.util.List;
+
+/**
+ * Lists external peer router lists.
+ */
+@Command(scope = "onos", name = "openstack-peer-routers",
+        description = "Lists external peer router lists")
+public class ExternalPeerRouterListCommand extends AbstractShellCommand {
+
+    private static final String FORMAT = "%-20s%-20s%-20s";
+
+    @Override
+    protected void execute() {
+        OpenstackNetworkService service = AbstractShellCommand.get(OpenstackNetworkService.class);
+
+        print(FORMAT, "Router IP", "Mac Address", "VLAN ID");
+        List<ExternalPeerRouter> routers = Lists.newArrayList(service.externalPeerRouters());
+
+        for (ExternalPeerRouter router: routers) {
+            print(FORMAT, router.externalPeerRouterIp(),
+                    router.externalPeerRouterMac().toString(),
+                    router.externalPeerRouterVlanId());
+        }
+    }
+}
diff --git a/apps/openstacknetworking/src/main/java/org/onosproject/openstacknetworking/cli/IpAddressCompleter.java b/apps/openstacknetworking/src/main/java/org/onosproject/openstacknetworking/cli/IpAddressCompleter.java
new file mode 100644
index 0000000..4ae1dd4
--- /dev/null
+++ b/apps/openstacknetworking/src/main/java/org/onosproject/openstacknetworking/cli/IpAddressCompleter.java
@@ -0,0 +1,54 @@
+/*
+ * 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 org.onosproject.openstacknetworking.cli;
+
+import org.apache.karaf.shell.console.Completer;
+import org.apache.karaf.shell.console.completer.StringsCompleter;
+import org.onlab.packet.IpAddress;
+import org.onosproject.cli.AbstractShellCommand;
+import org.onosproject.openstacknetworking.api.ExternalPeerRouter;
+import org.onosproject.openstacknetworking.api.OpenstackNetworkService;
+
+import java.util.Iterator;
+import java.util.List;
+import java.util.Set;
+import java.util.SortedSet;
+import java.util.stream.Collectors;
+
+/**
+ * IP Address Completer.
+ */
+public class IpAddressCompleter implements Completer {
+
+    @Override
+    public int complete(String buffer, int cursor, List<String> candidates) {
+        StringsCompleter delegate = new StringsCompleter();
+        OpenstackNetworkService osNetService = AbstractShellCommand.get(OpenstackNetworkService.class);
+        Set<IpAddress> set = osNetService.externalPeerRouters().stream()
+                .map(ExternalPeerRouter::externalPeerRouterIp)
+                .collect(Collectors.toSet());
+        SortedSet<String> strings = delegate.getStrings();
+
+        Iterator<IpAddress> it = set.iterator();
+
+        while (it.hasNext()) {
+            strings.add(it.next().toString());
+        }
+
+        return delegate.complete(buffer, cursor, candidates);
+
+    }
+}
diff --git a/apps/openstacknetworking/src/main/java/org/onosproject/openstacknetworking/cli/MacAddressCompleter.java b/apps/openstacknetworking/src/main/java/org/onosproject/openstacknetworking/cli/MacAddressCompleter.java
new file mode 100644
index 0000000..6e21de6
--- /dev/null
+++ b/apps/openstacknetworking/src/main/java/org/onosproject/openstacknetworking/cli/MacAddressCompleter.java
@@ -0,0 +1,54 @@
+/*
+ * 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 org.onosproject.openstacknetworking.cli;
+
+import org.apache.karaf.shell.console.Completer;
+import org.apache.karaf.shell.console.completer.StringsCompleter;
+import org.onlab.packet.MacAddress;
+import org.onosproject.cli.AbstractShellCommand;
+import org.onosproject.openstacknetworking.api.ExternalPeerRouter;
+import org.onosproject.openstacknetworking.api.OpenstackNetworkService;
+
+import java.util.Iterator;
+import java.util.List;
+import java.util.Set;
+import java.util.SortedSet;
+import java.util.stream.Collectors;
+
+/**
+ * Mac Address Completer.
+ */
+public class MacAddressCompleter implements Completer {
+
+        @Override
+        public int complete(String buffer, int cursor, List<String> candidates) {
+        StringsCompleter delegate = new StringsCompleter();
+        OpenstackNetworkService osNetService = AbstractShellCommand.get(OpenstackNetworkService.class);
+        Set<MacAddress> set = osNetService.externalPeerRouters().stream()
+                .map(ExternalPeerRouter::externalPeerRouterMac)
+                .collect(Collectors.toSet());
+        SortedSet<String> strings = delegate.getStrings();
+
+        Iterator<MacAddress> it = set.iterator();
+
+        while (it.hasNext()) {
+            strings.add(it.next().toString());
+        }
+
+        return delegate.complete(buffer, cursor, candidates);
+
+    }
+    }
diff --git a/apps/openstacknetworking/src/main/java/org/onosproject/openstacknetworking/cli/UpdateExternalPeerRouterCommand.java b/apps/openstacknetworking/src/main/java/org/onosproject/openstacknetworking/cli/UpdateExternalPeerRouterCommand.java
new file mode 100644
index 0000000..15a7555
--- /dev/null
+++ b/apps/openstacknetworking/src/main/java/org/onosproject/openstacknetworking/cli/UpdateExternalPeerRouterCommand.java
@@ -0,0 +1,95 @@
+/*
+ * 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 org.onosproject.openstacknetworking.cli;
+
+import com.google.common.collect.Lists;
+import org.apache.karaf.shell.commands.Argument;
+import org.apache.karaf.shell.commands.Command;
+import org.onlab.packet.Ip4Address;
+import org.onlab.packet.IpAddress;
+import org.onlab.packet.MacAddress;
+import org.onlab.packet.VlanId;
+import org.onosproject.cli.AbstractShellCommand;
+import org.onosproject.openstacknetworking.api.ExternalPeerRouter;
+import org.onosproject.openstacknetworking.api.OpenstackNetworkService;
+
+import java.util.List;
+
+/**
+ * Updates external peer router.
+ */
+@Command(scope = "onos", name = "openstack-update-peer-router",
+        description = "Update external peer router")
+public class UpdateExternalPeerRouterCommand extends AbstractShellCommand {
+
+    @Argument(index = 0, name = "ip address", description = "ip address",
+            required = true, multiValued = false)
+    private String ipAddress = null;
+
+    @Argument(index = 1, name = "mac address", description = "mac address",
+            required = true, multiValued = false)
+    private String macAddress = null;
+
+    @Argument(index = 2, name = "vlan id", description = "vlan id",
+            required = true, multiValued = false)
+    private String vlanId = null;
+
+    private static final String FORMAT = "%-20s%-20s%-20s";
+    private static final String NO_ELEMENT = "There's no external peer router information with given ip address";
+    private static final String NONE = "None";
+
+    @Override
+    protected void execute() {
+        OpenstackNetworkService service = AbstractShellCommand.get(OpenstackNetworkService.class);
+
+        IpAddress externalPeerIpAddress = IpAddress.valueOf(
+                IpAddress.Version.INET, Ip4Address.valueOf(ipAddress).toOctets());
+
+        if (service.externalPeerRouters().isEmpty()) {
+            print(NO_ELEMENT);
+            return;
+        } else if (service.externalPeerRouters().stream()
+                .noneMatch(router -> router.externalPeerRouterIp().toString().equals(ipAddress))) {
+            print(NO_ELEMENT);
+            return;
+        }
+        try {
+            if (vlanId.equals(NONE)) {
+                service.updateExternalPeerRouter(externalPeerIpAddress,
+                        MacAddress.valueOf(macAddress),
+                        VlanId.NONE);
+
+            } else {
+                service.updateExternalPeerRouter(externalPeerIpAddress,
+                        MacAddress.valueOf(macAddress),
+                        VlanId.vlanId(vlanId));
+            }
+        } catch (IllegalArgumentException e) {
+            log.error("Exception occurred because of {}", e.toString());
+        }
+
+
+        print(FORMAT, "Router IP", "Mac Address", "VLAN ID");
+        List<ExternalPeerRouter> routers = Lists.newArrayList(service.externalPeerRouters());
+
+        for (ExternalPeerRouter router: routers) {
+            print(FORMAT, router.externalPeerRouterIp(),
+                    router.externalPeerRouterMac().toString(),
+                    router.externalPeerRouterVlanId());
+        }
+    }
+}
+
diff --git a/apps/openstacknetworking/src/main/java/org/onosproject/openstacknetworking/cli/UpdateExternalPeerRouterVlanCommand.java b/apps/openstacknetworking/src/main/java/org/onosproject/openstacknetworking/cli/UpdateExternalPeerRouterVlanCommand.java
new file mode 100644
index 0000000..eed62e7
--- /dev/null
+++ b/apps/openstacknetworking/src/main/java/org/onosproject/openstacknetworking/cli/UpdateExternalPeerRouterVlanCommand.java
@@ -0,0 +1,83 @@
+/*
+ * 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 org.onosproject.openstacknetworking.cli;
+
+import com.google.common.collect.Lists;
+import org.apache.karaf.shell.commands.Argument;
+import org.apache.karaf.shell.commands.Command;
+import org.onlab.packet.Ip4Address;
+import org.onlab.packet.IpAddress;
+import org.onlab.packet.VlanId;
+import org.onosproject.cli.AbstractShellCommand;
+import org.onosproject.openstacknetworking.api.ExternalPeerRouter;
+import org.onosproject.openstacknetworking.api.OpenstackNetworkService;
+
+import java.util.List;
+
+/**
+ * Updates external peer router macc address.
+ */
+@Command(scope = "onos", name = "openstack-update-peer-router-vlan",
+        description = "Updates external peer router vlan")
+public class UpdateExternalPeerRouterVlanCommand extends AbstractShellCommand {
+    @Argument(index = 0, name = "ip address", description = "ip address",
+            required = true, multiValued = false)
+    private String ipAddress = null;
+
+    @Argument(index = 1, name = "vlan id", description = "vlan id",
+            required = true, multiValued = false)
+    private String vlanId = null;
+
+    private static final String FORMAT = "%-20s%-20s%-20s";
+    private static final String NO_ELEMENT = "There's no external peer router information with given ip address";
+    private static final String NONE = "None";
+
+    @Override
+    protected void execute() {
+        OpenstackNetworkService service = AbstractShellCommand.get(OpenstackNetworkService.class);
+
+        IpAddress externalPeerIpAddress = IpAddress.valueOf(
+                IpAddress.Version.INET, Ip4Address.valueOf(ipAddress).toOctets());
+
+        if (service.externalPeerRouters().isEmpty()) {
+            print(NO_ELEMENT);
+            return;
+        } else if (service.externalPeerRouters().stream()
+                .noneMatch(router -> router.externalPeerRouterIp().toString().equals(ipAddress))) {
+            print(NO_ELEMENT);
+            return;
+        }
+
+        try {
+            if (vlanId.equals(NONE)) {
+                service.updateExternalPeerRouterVlan(externalPeerIpAddress, VlanId.NONE);
+            } else {
+                service.updateExternalPeerRouterVlan(externalPeerIpAddress, VlanId.vlanId(vlanId));
+            }
+        } catch (IllegalArgumentException e) {
+            log.error("Exception occurred because of {}", e.toString());
+        }
+
+        print(FORMAT, "Router IP", "Mac Address", "VLAN ID");
+        List<ExternalPeerRouter> routers = Lists.newArrayList(service.externalPeerRouters());
+
+        for (ExternalPeerRouter router: routers) {
+            print(FORMAT, router.externalPeerRouterIp(),
+                    router.externalPeerRouterMac().toString(),
+                    router.externalPeerRouterVlanId());
+        }
+    }
+}
diff --git a/apps/openstacknetworking/src/main/java/org/onosproject/openstacknetworking/cli/VlanIdCompleter.java b/apps/openstacknetworking/src/main/java/org/onosproject/openstacknetworking/cli/VlanIdCompleter.java
new file mode 100644
index 0000000..0768859
--- /dev/null
+++ b/apps/openstacknetworking/src/main/java/org/onosproject/openstacknetworking/cli/VlanIdCompleter.java
@@ -0,0 +1,54 @@
+/*
+ * 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 org.onosproject.openstacknetworking.cli;
+
+import org.apache.karaf.shell.console.Completer;
+import org.apache.karaf.shell.console.completer.StringsCompleter;
+import org.onlab.packet.VlanId;
+import org.onosproject.cli.AbstractShellCommand;
+import org.onosproject.openstacknetworking.api.ExternalPeerRouter;
+import org.onosproject.openstacknetworking.api.OpenstackNetworkService;
+
+import java.util.Iterator;
+import java.util.List;
+import java.util.Set;
+import java.util.SortedSet;
+import java.util.stream.Collectors;
+
+/**
+ * Vlan Id Completer.
+ */
+public class VlanIdCompleter implements Completer {
+
+    @Override
+    public int complete(String buffer, int cursor, List<String> candidates) {
+        StringsCompleter delegate = new StringsCompleter();
+        OpenstackNetworkService osNetService = AbstractShellCommand.get(OpenstackNetworkService.class);
+        Set<VlanId> set = osNetService.externalPeerRouters().stream()
+                .map(ExternalPeerRouter::externalPeerRouterVlanId)
+                .collect(Collectors.toSet());
+        SortedSet<String> strings = delegate.getStrings();
+
+        Iterator<VlanId> it = set.iterator();
+
+        while (it.hasNext()) {
+            strings.add(it.next().toString());
+        }
+
+        return delegate.complete(buffer, cursor, candidates);
+
+    }
+}
\ No newline at end of file