diff --git a/.gitignore b/.gitignore
index 1ba85a76..6405b24c 100644
--- a/.gitignore
+++ b/.gitignore
@@ -8,3 +8,4 @@ tags
 .unit-state.db
 trusty/
 xenial/
+.stestr
diff --git a/config.yaml b/config.yaml
index 0ff438c7..a0faad01 100755
--- a/config.yaml
+++ b/config.yaml
@@ -381,6 +381,11 @@ options:
       Seconds between nodes reporting state to server; should be less than agent_down_time,
       best if it is half or less than agent_down_time.
       Used by all neutron agents (includes l2 agents and other types of agents).
+  enable-qos:
+    type: boolean
+    default: False
+    description: |
+      Enable QoS (assuming the plug-in or ml2 mechanism driver can support it)
   # Quota config
   quota-security-group:
     type: int
diff --git a/hooks/neutron_api_context.py b/hooks/neutron_api_context.py
index f4e2beb8..282f76c7 100644
--- a/hooks/neutron_api_context.py
+++ b/hooks/neutron_api_context.py
@@ -47,6 +47,7 @@ TENANT_NET_TYPES = [VXLAN, GRE, VLAN, FLAT, LOCAL]
 
 EXTENSION_DRIVER_PORT_SECURITY = 'port_security'
 EXTENSION_DRIVER_DNS = 'dns'
+EXTENSION_DRIVER_QOS = 'qos'
 
 ETC_NEUTRON = '/etc/neutron'
 
@@ -201,6 +202,23 @@ def get_ml2_mechanism_drivers():
     return ','.join(mechanism_drivers)
 
 
+def is_qos_requested_and_valid():
+    """Check whether QoS should be enabled by checking whether it has been
+       requested and, if it has, is it supported in the current configuration
+    """
+
+    if config('enable-qos'):
+        if CompareOpenStackReleases(os_release('neutron-server')) < 'mitaka':
+            msg = ("The enable-qos option is only supported on mitaka or "
+                   "later")
+            log(msg, ERROR)
+            return False
+        else:
+            return True
+    else:
+        return False
+
+
 class ApacheSSLContext(context.ApacheSSLContext):
 
     interfaces = ['https']
@@ -391,6 +409,10 @@ class NeutronCCContext(context.NeutronContext):
         if dns_domain:
             extension_drivers.append(EXTENSION_DRIVER_DNS)
             ctxt['dns_domain'] = dns_domain
+
+        if is_qos_requested_and_valid():
+            extension_drivers.append(EXTENSION_DRIVER_QOS)
+
         if extension_drivers:
             ctxt['extension_drivers'] = ','.join(extension_drivers)
 
@@ -412,6 +434,47 @@ class NeutronCCContext(context.NeutronContext):
 
         ctxt['mechanism_drivers'] = get_ml2_mechanism_drivers()
 
+        if config('neutron-plugin') in ['ovs', 'ml2', 'Calico']:
+            ctxt['service_plugins'] = []
+            service_plugins = {
+                'icehouse': [
+                    ('neutron.services.l3_router.l3_router_plugin.'
+                     'L3RouterPlugin'),
+                    'neutron.services.firewall.fwaas_plugin.FirewallPlugin',
+                    'neutron.services.loadbalancer.plugin.LoadBalancerPlugin',
+                    'neutron.services.vpn.plugin.VPNDriverPlugin',
+                    ('neutron.services.metering.metering_plugin.'
+                     'MeteringPlugin')],
+                'juno': [
+                    ('neutron.services.l3_router.l3_router_plugin.'
+                     'L3RouterPlugin'),
+                    'neutron.services.firewall.fwaas_plugin.FirewallPlugin',
+                    'neutron.services.loadbalancer.plugin.LoadBalancerPlugin',
+                    'neutron.services.vpn.plugin.VPNDriverPlugin',
+                    ('neutron.services.metering.metering_plugin.'
+                     'MeteringPlugin')],
+                'kilo': ['router', 'firewall', 'lbaas', 'vpnaas', 'metering'],
+                'liberty': ['router', 'firewall', 'lbaas', 'vpnaas',
+                            'metering'],
+                'mitaka': ['router', 'firewall', 'lbaas', 'vpnaas',
+                           'metering'],
+                'newton': ['router', 'firewall', 'vpnaas', 'metering',
+                           ('neutron_lbaas.services.loadbalancer.plugin.'
+                            'LoadBalancerPluginv2')],
+                'ocata': ['router', 'firewall', 'vpnaas', 'metering',
+                          ('neutron_lbaas.services.loadbalancer.plugin.'
+                           'LoadBalancerPluginv2')],
+                'pike': ['router', 'firewall', 'metering',
+                         ('neutron_lbaas.services.loadbalancer.plugin.'
+                          'LoadBalancerPluginv2')],
+            }
+            ctxt['service_plugins'] = service_plugins.get(
+                release, service_plugins['pike'])
+
+            if is_qos_requested_and_valid():
+                ctxt['service_plugins'].append('qos')
+            ctxt['service_plugins'] = ','.join(ctxt['service_plugins'])
+
         return ctxt
 
 
diff --git a/hooks/neutron_api_hooks.py b/hooks/neutron_api_hooks.py
index ff4377b3..fd5701cb 100755
--- a/hooks/neutron_api_hooks.py
+++ b/hooks/neutron_api_hooks.py
@@ -94,6 +94,7 @@ from neutron_api_context import (
     get_l2population,
     get_overlay_network_type,
     IdentityServiceContext,
+    is_qos_requested_and_valid,
     EtcdContext,
 )
 
@@ -484,6 +485,7 @@ def neutron_plugin_api_relation_joined(rid=None):
             'l2-population': get_l2population(),
             'enable-dvr': get_dvr(),
             'enable-l3ha': get_l3ha(),
+            'enable-qos': is_qos_requested_and_valid(),
             'overlay-network-type': get_overlay_network_type(),
             'addr': unit_get('private-address'),
             'polling-interval': config('polling-interval'),
diff --git a/templates/icehouse/neutron.conf b/templates/icehouse/neutron.conf
index f5260846..e7b79a07 100644
--- a/templates/icehouse/neutron.conf
+++ b/templates/icehouse/neutron.conf
@@ -29,10 +29,6 @@ bind_port = 9696
 core_plugin = {{ core_plugin }}
 {% if service_plugins -%}
 service_plugins = {{ service_plugins }}
-{% else -%}
-{% if neutron_plugin in ['ovs', 'ml2', 'Calico'] -%}
-service_plugins = neutron.services.l3_router.l3_router_plugin.L3RouterPlugin,neutron.services.firewall.fwaas_plugin.FirewallPlugin,neutron.services.loadbalancer.plugin.LoadBalancerPlugin,neutron.services.vpn.plugin.VPNDriverPlugin,neutron.services.metering.metering_plugin.MeteringPlugin
-{% endif -%}
 {% endif -%}
 {% endif -%}
 
diff --git a/templates/juno/neutron.conf b/templates/juno/neutron.conf
index aecd44ee..2ad2105f 100644
--- a/templates/juno/neutron.conf
+++ b/templates/juno/neutron.conf
@@ -31,8 +31,8 @@ bind_port = 9696
 
 {% if core_plugin -%}
 core_plugin = {{ core_plugin }}
-{% if neutron_plugin in ['ovs', 'ml2', 'Calico'] -%}
-service_plugins = neutron.services.l3_router.l3_router_plugin.L3RouterPlugin,neutron.services.firewall.fwaas_plugin.FirewallPlugin,neutron.services.loadbalancer.plugin.LoadBalancerPlugin,neutron.services.vpn.plugin.VPNDriverPlugin,neutron.services.metering.metering_plugin.MeteringPlugin
+{% if service_plugins -%}
+service_plugins = {{ service_plugins }}
 {% endif -%}
 {% endif -%}
 
diff --git a/templates/kilo/neutron.conf b/templates/kilo/neutron.conf
index 6b51f5fb..1c052538 100644
--- a/templates/kilo/neutron.conf
+++ b/templates/kilo/neutron.conf
@@ -33,10 +33,6 @@ bind_port = 9696
 core_plugin = {{ core_plugin }}
 {% if service_plugins -%}
 service_plugins = {{ service_plugins }}
-{% else -%}
-{% if neutron_plugin in ['ovs', 'ml2', 'Calico'] -%}
-service_plugins = router,firewall,lbaas,vpnaas,metering
-{% endif -%}
 {% endif -%}
 {% endif -%}
 
diff --git a/templates/liberty/neutron.conf b/templates/liberty/neutron.conf
index 621527c6..d0d52aed 100644
--- a/templates/liberty/neutron.conf
+++ b/templates/liberty/neutron.conf
@@ -38,14 +38,10 @@ api_extensions_path = {{ api_extensions_path }}
 core_plugin = {{ core_plugin }}
 {% if service_plugins -%}
 service_plugins = {{ service_plugins }}
-{% else -%}
-{% if neutron_plugin in ['ovs', 'ml2', 'Calico'] -%}
-service_plugins = router,firewall,lbaas,vpnaas,metering
 {% elif neutron_plugin == 'midonet' -%}
 service_plugins = lbaas
 {% endif -%}
 {% endif -%}
-{% endif -%}
 
 {% if neutron_security_groups -%}
 allow_overlapping_ips = True
diff --git a/templates/mitaka/neutron.conf b/templates/mitaka/neutron.conf
index 45f13371..54497206 100644
--- a/templates/mitaka/neutron.conf
+++ b/templates/mitaka/neutron.conf
@@ -36,10 +36,6 @@ bind_port = 9696
 core_plugin = {{ core_plugin }}
 {% if service_plugins -%}
 service_plugins = {{ service_plugins }}
-{% else -%}
-{% if neutron_plugin in ['ovs', 'ml2', 'Calico'] -%}
-service_plugins = router,firewall,lbaas,vpnaas,metering
-{% endif -%}
 {% endif -%}
 {% endif -%}
 
diff --git a/templates/newton/neutron.conf b/templates/newton/neutron.conf
index 387cdcd2..3e509347 100644
--- a/templates/newton/neutron.conf
+++ b/templates/newton/neutron.conf
@@ -36,10 +36,6 @@ bind_port = 9696
 core_plugin = {{ core_plugin }}
 {% if service_plugins -%}
 service_plugins = {{ service_plugins }}
-{% else -%}
-{% if neutron_plugin in ['ovs', 'ml2', 'Calico'] -%}
-service_plugins = router,firewall,vpnaas,metering,neutron_lbaas.services.loadbalancer.plugin.LoadBalancerPluginv2
-{% endif -%}
 {% endif -%}
 {% endif -%}
 
diff --git a/templates/pike/neutron.conf b/templates/pike/neutron.conf
index 5612bf4b..263414b6 100644
--- a/templates/pike/neutron.conf
+++ b/templates/pike/neutron.conf
@@ -32,10 +32,6 @@ bind_port = 9696
 core_plugin = {{ core_plugin }}
 {% if service_plugins -%}
 service_plugins = {{ service_plugins }}
-{% else -%}
-{% if neutron_plugin in ['ovs', 'ml2', 'Calico'] -%}
-service_plugins = router,firewall,metering,neutron_lbaas.services.loadbalancer.plugin.LoadBalancerPluginv2
-{% endif -%}
 {% endif -%}
 {% endif -%}
 
diff --git a/tests/basic_deployment.py b/tests/basic_deployment.py
index d34991f5..85425fe1 100644
--- a/tests/basic_deployment.py
+++ b/tests/basic_deployment.py
@@ -660,6 +660,39 @@ class NeutronAPIBasicDeployment(OpenStackAmuletDeployment):
                 message = "ml2 config error: {}".format(ret)
                 amulet.raise_status(amulet.FAIL, msg=message)
 
+    def test_400_enable_qos(self):
+        """Check qos settings"""
+        if self._get_openstack_release() >= self.trusty_mitaka:
+            u.log.debug('Checking QoS setting in neutron-api '
+                        'neutron-openvswitch relation data...')
+            unit = self.neutron_api_sentry
+            relation = ['neutron-plugin-api',
+                        'neutron-openvswitch:neutron-plugin-api']
+
+            set_default = {'enable-qos': 'False'}
+            set_alternate = {'enable-qos': 'True'}
+            self.d.configure('neutron-api', set_alternate)
+
+            relation_data = unit.relation(relation[0], relation[1])
+            if relation_data['enable-qos'] != 'True':
+                message = ("enable-qos setting not set properly on "
+                           "neutron-plugin-api relation")
+                amulet.raise_status(amulet.FAIL, msg=message)
+
+            qos_plugin = 'qos'
+            config = u._get_config(unit, '/etc/neutron/neutron.conf')
+            service_plugins = config.get(
+                'DEFAULT',
+                'service_plugins').split(',')
+            if qos_plugin not in service_plugins:
+                message = "{} not in service_plugins".format(qos_plugin)
+                amulet.raise_status(amulet.FAIL, msg=message)
+
+            u.log.debug('Setting QoS back to {}'.format(
+                set_default['enable-qos']))
+            self.d.configure('neutron-api', set_default)
+            u.log.debug('OK')
+
     def test_900_restart_on_config_change(self):
         """Verify that the specified services are restarted when the
         config is changed."""
diff --git a/unit_tests/test_neutron_api_context.py b/unit_tests/test_neutron_api_context.py
index 1e33f9bf..e32a3809 100644
--- a/unit_tests/test_neutron_api_context.py
+++ b/unit_tests/test_neutron_api_context.py
@@ -442,9 +442,15 @@ class NeutronCCContextTest(CharmTestCase):
             'vlan_ranges': 'physnet1:1000:2000',
             'vni_ranges': '1001:2000',
             'extension_drivers': 'port_security',
+            'service_plugins': (
+                'neutron.services.l3_router.l3_router_plugin.L3RouterPlugin,'
+                'neutron.services.firewall.fwaas_plugin.FirewallPlugin,'
+                'neutron.services.loadbalancer.plugin.LoadBalancerPlugin,'
+                'neutron.services.vpn.plugin.VPNDriverPlugin,'
+                'neutron.services.metering.metering_plugin.MeteringPlugin'),
         }
         napi_ctxt = context.NeutronCCContext()
-        self.os_release.return_value = 'havana'
+        self.os_release.return_value = 'icehouse'
         with patch.object(napi_ctxt, '_ensure_packages'):
             self.assertEqual(ctxt_data, napi_ctxt())
 
@@ -528,9 +534,15 @@ class NeutronCCContextTest(CharmTestCase):
             'vni_ranges': '1001:2000,3001:4000',
             'network_providers': 'physnet2,physnet3',
             'extension_drivers': 'port_security',
+            'service_plugins': (
+                'neutron.services.l3_router.l3_router_plugin.L3RouterPlugin,'
+                'neutron.services.firewall.fwaas_plugin.FirewallPlugin,'
+                'neutron.services.loadbalancer.plugin.LoadBalancerPlugin,'
+                'neutron.services.vpn.plugin.VPNDriverPlugin,'
+                'neutron.services.metering.metering_plugin.MeteringPlugin'),
         }
         napi_ctxt = context.NeutronCCContext()
-        self.os_release.return_value = 'havana'
+        self.os_release.return_value = 'icehouse'
         with patch.object(napi_ctxt, '_ensure_packages'):
             self.assertEqual(ctxt_data, napi_ctxt())
 
@@ -540,10 +552,12 @@ class NeutronCCContextTest(CharmTestCase):
     def test_neutroncc_context_l3ha(self, _import, plugin, nm):
         plugin.return_value = None
         self.test_config.set('enable-l3ha', True)
+        self.test_config.set('enable-qos', False)
         self.test_config.set('overlay-network-type', 'gre')
         self.test_config.set('neutron-plugin', 'ovs')
         self.test_config.set('l2-population', False)
         self.os_release.return_value = 'juno'
+        self.maxDiff = None
         ctxt_data = {
             'debug': True,
             'enable_dvr': False,
@@ -573,6 +587,12 @@ class NeutronCCContextTest(CharmTestCase):
             'vlan_ranges': 'physnet1:1000:2000',
             'vni_ranges': '1001:2000',
             'extension_drivers': 'port_security',
+            'service_plugins': (
+                'neutron.services.l3_router.l3_router_plugin.L3RouterPlugin,'
+                'neutron.services.firewall.fwaas_plugin.FirewallPlugin,'
+                'neutron.services.loadbalancer.plugin.LoadBalancerPlugin,'
+                'neutron.services.vpn.plugin.VPNDriverPlugin,'
+                'neutron.services.metering.metering_plugin.MeteringPlugin'),
         }
         napi_ctxt = context.NeutronCCContext()
         with patch.object(napi_ctxt, '_ensure_packages'):
@@ -629,6 +649,7 @@ class NeutronCCContextTest(CharmTestCase):
             'vlan_ranges': 'physnet1:1000:2000',
             'vni_ranges': '1001:2000',
             'extension_drivers': 'port_security',
+            'service_plugins': 'router,firewall,lbaas,vpnaas,metering',
         }
         napi_ctxt = context.NeutronCCContext()
         self.os_release.return_value = 'kilo'
@@ -712,6 +733,87 @@ class NeutronCCContextTest(CharmTestCase):
         for key in expect.iterkeys():
             self.assertEqual(napi_ctxt[key], expect[key])
 
+    @patch.object(context.NeutronCCContext, 'network_manager')
+    @patch.object(context.NeutronCCContext, 'plugin')
+    @patch('__builtin__.__import__')
+    def test_neutroncc_context_qos(self, _import, plugin, nm):
+        plugin.return_value = None
+        self.os_release.return_value = 'mitaka'
+        self.test_config.set('enable-qos', True)
+        self.test_config.set('enable-ml2-port-security', False)
+        napi_ctxt = context.NeutronCCContext()()
+        service_plugins = ('router,firewall,lbaas,vpnaas,metering,qos')
+        expect = {
+            'extension_drivers': 'qos',
+            'service_plugins': service_plugins,
+        }
+        for key in expect.iterkeys():
+            self.assertEqual(napi_ctxt[key], expect[key])
+
+    @patch.object(context.NeutronCCContext, 'network_manager')
+    @patch.object(context.NeutronCCContext, 'plugin')
+    @patch('__builtin__.__import__')
+    def test_neutroncc_context_service_plugins(self, _import, plugin, nm):
+        plugin.return_value = None
+        self.test_config.set('enable-qos', False)
+        self.test_config.set('enable-ml2-port-security', False)
+        # icehouse
+        self.os_release.return_value = 'icehouse'
+        service_plugins = (
+            'neutron.services.l3_router.l3_router_plugin.L3RouterPlugin,'
+            'neutron.services.firewall.fwaas_plugin.FirewallPlugin,'
+            'neutron.services.loadbalancer.plugin.LoadBalancerPlugin,'
+            'neutron.services.vpn.plugin.VPNDriverPlugin,'
+            'neutron.services.metering.metering_plugin.MeteringPlugin')
+        self.assertEqual(context.NeutronCCContext()()['service_plugins'],
+                         service_plugins)
+        # juno
+        self.os_release.return_value = 'juno'
+        service_plugins = (
+            'neutron.services.l3_router.l3_router_plugin.L3RouterPlugin,'
+            'neutron.services.firewall.fwaas_plugin.FirewallPlugin,'
+            'neutron.services.loadbalancer.plugin.LoadBalancerPlugin,'
+            'neutron.services.vpn.plugin.VPNDriverPlugin,'
+            'neutron.services.metering.metering_plugin.MeteringPlugin')
+        self.assertEqual(context.NeutronCCContext()()['service_plugins'],
+                         service_plugins)
+        # kilo
+        self.os_release.return_value = 'kilo'
+        service_plugins = 'router,firewall,lbaas,vpnaas,metering'
+        self.assertEqual(context.NeutronCCContext()()['service_plugins'],
+                         service_plugins)
+        # liberty
+        self.os_release.return_value = 'liberty'
+        service_plugins = 'router,firewall,lbaas,vpnaas,metering'
+        self.assertEqual(context.NeutronCCContext()()['service_plugins'],
+                         service_plugins)
+        # mitaka
+        self.os_release.return_value = 'mitaka'
+        service_plugins = 'router,firewall,lbaas,vpnaas,metering'
+        self.assertEqual(context.NeutronCCContext()()['service_plugins'],
+                         service_plugins)
+        # newton
+        self.os_release.return_value = 'newton'
+        service_plugins = (
+            'router,firewall,vpnaas,metering,'
+            'neutron_lbaas.services.loadbalancer.plugin.LoadBalancerPluginv2')
+        self.assertEqual(context.NeutronCCContext()()['service_plugins'],
+                         service_plugins)
+        # ocata
+        self.os_release.return_value = 'ocata'
+        service_plugins = (
+            'router,firewall,vpnaas,metering,'
+            'neutron_lbaas.services.loadbalancer.plugin.LoadBalancerPluginv2')
+        self.assertEqual(context.NeutronCCContext()()['service_plugins'],
+                         service_plugins)
+        # pike
+        self.os_release.return_value = 'pike'
+        service_plugins = (
+            'router,firewall,metering,'
+            'neutron_lbaas.services.loadbalancer.plugin.LoadBalancerPluginv2')
+        self.assertEqual(context.NeutronCCContext()()['service_plugins'],
+                         service_plugins)
+
 
 class EtcdContextTest(CharmTestCase):
 
diff --git a/unit_tests/test_neutron_api_hooks.py b/unit_tests/test_neutron_api_hooks.py
index a8b61ed0..2d7ba02b 100644
--- a/unit_tests/test_neutron_api_hooks.py
+++ b/unit_tests/test_neutron_api_hooks.py
@@ -67,6 +67,7 @@ TO_PATCH = [
     'get_overlay_network_type',
     'git_install',
     'is_elected_leader',
+    'is_qos_requested_and_valid',
     'is_relation_made',
     'log',
     'migrate_neutron_database',
@@ -602,6 +603,7 @@ class NeutronAPIHooksTests(CharmTestCase):
             'neutron-security-groups': False,
             'enable-dvr': False,
             'enable-l3ha': False,
+            'enable-qos': False,
             'addr': '172.18.18.18',
             'polling-interval': 2,
             'rpc-response-timeout': 60,
@@ -620,6 +622,7 @@ class NeutronAPIHooksTests(CharmTestCase):
             'service_host': None,
             'neutron-api-ready': 'no',
         }
+        self.is_qos_requested_and_valid.return_value = False
         self.get_dvr.return_value = False
         self.get_l3ha.return_value = False
         self.get_l2population.return_value = False
@@ -639,6 +642,7 @@ class NeutronAPIHooksTests(CharmTestCase):
             'neutron-security-groups': False,
             'enable-dvr': True,
             'enable-l3ha': False,
+            'enable-qos': False,
             'addr': '172.18.18.18',
             'polling-interval': 2,
             'rpc-response-timeout': 60,
@@ -657,6 +661,7 @@ class NeutronAPIHooksTests(CharmTestCase):
             'service_host': None,
             'neutron-api-ready': 'no',
         }
+        self.is_qos_requested_and_valid.return_value = False
         self.get_dvr.return_value = True
         self.get_l3ha.return_value = False
         self.get_l2population.return_value = True
@@ -676,6 +681,7 @@ class NeutronAPIHooksTests(CharmTestCase):
             'neutron-security-groups': False,
             'enable-dvr': False,
             'enable-l3ha': True,
+            'enable-qos': False,
             'addr': '172.18.18.18',
             'polling-interval': 2,
             'rpc-response-timeout': 60,
@@ -694,6 +700,7 @@ class NeutronAPIHooksTests(CharmTestCase):
             'service_host': None,
             'neutron-api-ready': 'no',
         }
+        self.is_qos_requested_and_valid.return_value = False
         self.get_dvr.return_value = False
         self.get_l3ha.return_value = True
         self.get_l2population.return_value = False
@@ -717,6 +724,7 @@ class NeutronAPIHooksTests(CharmTestCase):
             'rpc-response-timeout': 60,
             'report-interval': 30,
             'l2-population': False,
+            'enable-qos': False,
             'overlay-network-type': 'vxlan',
             'network-device-mtu': 1500,
             'enable-l3ha': True,
@@ -733,6 +741,7 @@ class NeutronAPIHooksTests(CharmTestCase):
             'service_host': None,
             'neutron-api-ready': 'no',
         }
+        self.is_qos_requested_and_valid.return_value = False
         self.get_dvr.return_value = True
         self.get_l3ha.return_value = True
         self.get_l2population.return_value = False
@@ -752,6 +761,7 @@ class NeutronAPIHooksTests(CharmTestCase):
             'neutron-security-groups': False,
             'enable-dvr': False,
             'enable-l3ha': False,
+            'enable-qos': False,
             'addr': '172.18.18.18',
             'polling-interval': 2,
             'rpc-response-timeout': 60,
@@ -771,6 +781,7 @@ class NeutronAPIHooksTests(CharmTestCase):
             'neutron-api-ready': 'no',
             'dns-domain': 'openstack.example.'
         }
+        self.is_qos_requested_and_valid.return_value = False
         self.get_dvr.return_value = False
         self.get_l3ha.return_value = False
         self.get_l2population.return_value = False