diff --git a/tempest/api/compute/limits/test_absolute_limits_negative.py b/tempest/api/compute/limits/test_absolute_limits_negative.py
index f729436..a9c72fb 100644
--- a/tempest/api/compute/limits/test_absolute_limits_negative.py
+++ b/tempest/api/compute/limits/test_absolute_limits_negative.py
@@ -32,6 +32,10 @@
         # Get max limit value
         max_meta = self.client.get_specific_absolute_limit('maxImageMeta')
 
+        # No point in running this test if there is no limit.
+        if int(max_meta) == -1:
+            raise self.skipException('no limit for maxImageMeta')
+
         # Create server should fail, since we are passing > metadata Limit!
         max_meta_data = int(max_meta) + 1
 
diff --git a/tempest/api/compute/servers/test_create_server.py b/tempest/api/compute/servers/test_create_server.py
index b561b4e..1c4dc59 100644
--- a/tempest/api/compute/servers/test_create_server.py
+++ b/tempest/api/compute/servers/test_create_server.py
@@ -130,23 +130,23 @@
         # Verify that the networks order given at the server creation is
         # preserved within the server.
         name_net1 = data_utils.rand_name(self.__class__.__name__)
-        _, net1 = self.network_client.create_network(name=name_net1)
+        net1 = self.network_client.create_network(name=name_net1)
         self.addCleanup(self.network_client.delete_network,
                         net1['network']['id'])
 
         name_net2 = data_utils.rand_name(self.__class__.__name__)
-        _, net2 = self.network_client.create_network(name=name_net2)
+        net2 = self.network_client.create_network(name=name_net2)
         self.addCleanup(self.network_client.delete_network,
                         net2['network']['id'])
 
-        _, subnet1 = self.network_client.create_subnet(
+        subnet1 = self.network_client.create_subnet(
             network_id=net1['network']['id'],
             cidr='19.80.0.0/24',
             ip_version=4)
         self.addCleanup(self.network_client.delete_subnet,
                         subnet1['subnet']['id'])
 
-        _, subnet2 = self.network_client.create_subnet(
+        subnet2 = self.network_client.create_subnet(
             network_id=net2['network']['id'],
             cidr='19.86.0.0/24',
             ip_version=4)
diff --git a/tempest/api/compute/servers/test_server_metadata_negative.py b/tempest/api/compute/servers/test_server_metadata_negative.py
index 8b074fd..ee1e652 100644
--- a/tempest/api/compute/servers/test_server_metadata_negative.py
+++ b/tempest/api/compute/servers/test_server_metadata_negative.py
@@ -124,6 +124,9 @@
         # tenant.
         _, quota_set = self.quotas.get_quota_set(self.tenant_id)
         quota_metadata = quota_set['metadata_items']
+        if quota_metadata == -1:
+            raise self.skipException("No limit for metadata_items")
+
         req_metadata = {}
         for num in range(1, quota_metadata + 2):
             req_metadata['key' + str(num)] = 'val' + str(num)
diff --git a/tempest/api/compute/servers/test_servers_negative.py b/tempest/api/compute/servers/test_servers_negative.py
index 4e6dcda..f44d158 100644
--- a/tempest/api/compute/servers/test_servers_negative.py
+++ b/tempest/api/compute/servers/test_servers_negative.py
@@ -13,7 +13,6 @@
 #    License for the specific language governing permissions and limitations
 #    under the License.
 
-import base64
 import sys
 
 import testtools
@@ -166,18 +165,10 @@
     def test_rebuild_non_existent_server(self):
         # Rebuild a non existent server
         nonexistent_server = data_utils.rand_uuid()
-        meta = {'rebuild': 'server'}
-        new_name = data_utils.rand_name('server')
-        file_contents = 'Test server rebuild.'
-        personality = [{'path': '/etc/rebuild.txt',
-                        'contents': base64.b64encode(file_contents)}]
         self.assertRaises(exceptions.NotFound,
                           self.client.rebuild,
                           nonexistent_server,
-                          self.image_ref_alt,
-                          name=new_name, meta=meta,
-                          personality=personality,
-                          adminPass='rebuild')
+                          self.image_ref_alt)
 
     @test.attr(type=['negative', 'gate'])
     def test_create_numeric_server_name(self):
diff --git a/tempest/api/network/admin/test_agent_management.py b/tempest/api/network/admin/test_agent_management.py
index 53b9ddd..e7fd016 100644
--- a/tempest/api/network/admin/test_agent_management.py
+++ b/tempest/api/network/admin/test_agent_management.py
@@ -26,13 +26,13 @@
         if not test.is_extension_enabled('agent', 'network'):
             msg = "agent extension not enabled."
             raise cls.skipException(msg)
-        resp, body = cls.admin_client.list_agents()
+        body = cls.admin_client.list_agents()
         agents = body['agents']
         cls.agent = agents[0]
 
     @test.attr(type='smoke')
     def test_list_agent(self):
-        _, body = self.admin_client.list_agents()
+        body = self.admin_client.list_agents()
         agents = body['agents']
         # Hearthbeats must be excluded from comparison
         self.agent.pop('heartbeat_timestamp', None)
@@ -44,12 +44,12 @@
 
     @test.attr(type=['smoke'])
     def test_list_agents_non_admin(self):
-        _, body = self.client.list_agents()
+        body = self.client.list_agents()
         self.assertEqual(len(body["agents"]), 0)
 
     @test.attr(type='smoke')
     def test_show_agent(self):
-        _, body = self.admin_client.show_agent(self.agent['id'])
+        body = self.admin_client.show_agent(self.agent['id'])
         agent = body['agent']
         self.assertEqual(agent['id'], self.agent['id'])
 
@@ -59,8 +59,8 @@
         # Try to update the 'admin_state_up' to the original
         # one to avoid the negative effect.
         agent_status = {'admin_state_up': origin_status}
-        _, body = self.admin_client.update_agent(agent_id=self.agent['id'],
-                                                 agent_info=agent_status)
+        body = self.admin_client.update_agent(agent_id=self.agent['id'],
+                                              agent_info=agent_status)
         updated_status = body['agent']['admin_state_up']
         self.assertEqual(origin_status, updated_status)
 
@@ -69,8 +69,8 @@
         self.useFixture(fixtures.LockFixture('agent_description'))
         description = 'description for update agent.'
         agent_description = {'description': description}
-        _, body = self.admin_client.update_agent(agent_id=self.agent['id'],
-                                                 agent_info=agent_description)
+        body = self.admin_client.update_agent(agent_id=self.agent['id'],
+                                              agent_info=agent_description)
         self.addCleanup(self._restore_agent)
         updated_description = body['agent']['description']
         self.assertEqual(updated_description, description)
diff --git a/tempest/api/network/admin/test_dhcp_agent_scheduler.py b/tempest/api/network/admin/test_dhcp_agent_scheduler.py
index a938fa6..a89f25c 100644
--- a/tempest/api/network/admin/test_dhcp_agent_scheduler.py
+++ b/tempest/api/network/admin/test_dhcp_agent_scheduler.py
@@ -34,12 +34,12 @@
 
     @test.attr(type='smoke')
     def test_list_dhcp_agent_hosting_network(self):
-        _, body = self.admin_client.list_dhcp_agent_hosting_network(
+        self.admin_client.list_dhcp_agent_hosting_network(
             self.network['id'])
 
     @test.attr(type='smoke')
     def test_list_networks_hosted_by_one_dhcp(self):
-        resp, body = self.admin_client.list_dhcp_agent_hosting_network(
+        body = self.admin_client.list_dhcp_agent_hosting_network(
             self.network['id'])
         agents = body['agents']
         self.assertIsNotNone(agents)
@@ -49,7 +49,7 @@
 
     def _check_network_in_dhcp_agent(self, network_id, agent):
         network_ids = []
-        _, body = self.admin_client.list_networks_hosted_by_one_dhcp_agent(
+        body = self.admin_client.list_networks_hosted_by_one_dhcp_agent(
             agent['id'])
         networks = body['networks']
         for network in networks:
@@ -63,7 +63,7 @@
         self.ports.remove(self.port)
         agent = dict()
         agent['agent_type'] = None
-        resp, body = self.admin_client.list_agents()
+        body = self.admin_client.list_agents()
         agents = body['agents']
         for a in agents:
             if a['agent_type'] == 'DHCP agent':
@@ -82,14 +82,14 @@
             self._remove_network_from_dhcp_agent(network_id, agent)
 
     def _remove_network_from_dhcp_agent(self, network_id, agent):
-        _, body = self.admin_client.remove_network_from_dhcp_agent(
+        self.admin_client.remove_network_from_dhcp_agent(
             agent_id=agent['id'],
             network_id=network_id)
         self.assertFalse(self._check_network_in_dhcp_agent(
             network_id, agent))
 
     def _add_dhcp_agent_to_network(self, network_id, agent):
-        _, body = self.admin_client.add_dhcp_agent_to_network(agent['id'],
-                                                              network_id)
+        self.admin_client.add_dhcp_agent_to_network(agent['id'],
+                                                    network_id)
         self.assertTrue(self._check_network_in_dhcp_agent(
             network_id, agent))
diff --git a/tempest/api/network/admin/test_external_network_extension.py b/tempest/api/network/admin/test_external_network_extension.py
index 75ee217..06cce48 100644
--- a/tempest/api/network/admin/test_external_network_extension.py
+++ b/tempest/api/network/admin/test_external_network_extension.py
@@ -26,7 +26,7 @@
         post_body = {'name': data_utils.rand_name('network-')}
         if external:
             post_body['router:external'] = external
-        _, body = self.admin_client.create_network(**post_body)
+        body = self.admin_client.create_network(**post_body)
         network = body['network']
         self.addCleanup(self.admin_client.delete_network, network['id'])
         return network
@@ -45,8 +45,8 @@
         network = self._create_network(external=False)
         self.assertFalse(network.get('router:external', False))
         update_body = {'router:external': True}
-        _, body = self.admin_client.update_network(network['id'],
-                                                   **update_body)
+        body = self.admin_client.update_network(network['id'],
+                                                **update_body)
         updated_network = body['network']
         # Verify that router:external parameter was updated
         self.assertTrue(updated_network['router:external'])
@@ -57,7 +57,7 @@
         # List networks as a normal user and confirm the external
         # network extension attribute is returned for those networks
         # that were created as external
-        _, body = self.client.list_networks()
+        body = self.client.list_networks()
         networks_list = [net['id'] for net in body['networks']]
         self.assertIn(external_network['id'], networks_list)
         self.assertIn(self.network['id'], networks_list)
@@ -72,12 +72,12 @@
         external_network = self._create_network()
         # Show an external network as a normal user and confirm the
         # external network extension attribute is returned.
-        _, body = self.client.show_network(external_network['id'])
+        body = self.client.show_network(external_network['id'])
         show_ext_net = body['network']
         self.assertEqual(external_network['name'], show_ext_net['name'])
         self.assertEqual(external_network['id'], show_ext_net['id'])
         self.assertTrue(show_ext_net['router:external'])
-        _, body = self.client.show_network(self.network['id'])
+        body = self.client.show_network(self.network['id'])
         show_net = body['network']
         # Verify with show that router:external is False for network
         self.assertEqual(self.network['name'], show_net['name'])
@@ -91,29 +91,29 @@
         """
         # Set cls.client to admin to use base.create_subnet()
         client = self.admin_client
-        _, body = client.create_network(**{'router:external': True})
+        body = client.create_network(**{'router:external': True})
         external_network = body['network']
         self.addCleanup(self._try_delete_resource,
                         client.delete_network,
                         external_network['id'])
         subnet = self.create_subnet(external_network, client=client)
-        _, body = client.create_floatingip(
+        body = client.create_floatingip(
             floating_network_id=external_network['id'])
         created_floating_ip = body['floatingip']
         self.addCleanup(self._try_delete_resource,
                         client.delete_floatingip,
                         created_floating_ip['id'])
-        _, floatingip_list = client.list_floatingips(
+        floatingip_list = client.list_floatingips(
             network=external_network['id'])
         self.assertIn(created_floating_ip['id'],
                       (f['id'] for f in floatingip_list['floatingips']))
         client.delete_network(external_network['id'])
         # Verifies floating ip is deleted
-        _, floatingip_list = client.list_floatingips()
+        floatingip_list = client.list_floatingips()
         self.assertNotIn(created_floating_ip['id'],
                          (f['id'] for f in floatingip_list['floatingips']))
         # Verifies subnet is deleted
-        _, subnet_list = client.list_subnets()
+        subnet_list = client.list_subnets()
         self.assertNotIn(subnet['id'],
                          (s['id'] for s in subnet_list))
         # Removes subnet from the cleanup list
diff --git a/tempest/api/network/admin/test_floating_ips_admin_actions.py b/tempest/api/network/admin/test_floating_ips_admin_actions.py
index 2fe7bf8..62ba1b3 100644
--- a/tempest/api/network/admin/test_floating_ips_admin_actions.py
+++ b/tempest/api/network/admin/test_floating_ips_admin_actions.py
@@ -36,18 +36,18 @@
     @test.attr(type='smoke')
     def test_list_floating_ips_from_admin_and_nonadmin(self):
         # Create floating ip from admin user
-        _, floating_ip_admin = self.admin_client.create_floatingip(
+        floating_ip_admin = self.admin_client.create_floatingip(
             floating_network_id=self.ext_net_id)
         self.addCleanup(self.admin_client.delete_floatingip,
                         floating_ip_admin['floatingip']['id'])
         # Create floating ip from alt user
-        _, body = self.alt_client.create_floatingip(
+        body = self.alt_client.create_floatingip(
             floating_network_id=self.ext_net_id)
         floating_ip_alt = body['floatingip']
         self.addCleanup(self.alt_client.delete_floatingip,
                         floating_ip_alt['id'])
         # List floating ips from admin
-        _, body = self.admin_client.list_floatingips()
+        body = self.admin_client.list_floatingips()
         floating_ip_ids_admin = [f['id'] for f in body['floatingips']]
         # Check that admin sees all floating ips
         self.assertIn(self.floating_ip['id'], floating_ip_ids_admin)
@@ -55,7 +55,7 @@
                       floating_ip_ids_admin)
         self.assertIn(floating_ip_alt['id'], floating_ip_ids_admin)
         # List floating ips from nonadmin
-        resp, body = self.client.list_floatingips()
+        body = self.client.list_floatingips()
         floating_ip_ids = [f['id'] for f in body['floatingips']]
         # Check that nonadmin user doesn't see floating ip created from admin
         # and floating ip that is created in another tenant (alt user)
diff --git a/tempest/api/network/admin/test_l3_agent_scheduler.py b/tempest/api/network/admin/test_l3_agent_scheduler.py
index 8fccb1f..a6de581 100644
--- a/tempest/api/network/admin/test_l3_agent_scheduler.py
+++ b/tempest/api/network/admin/test_l3_agent_scheduler.py
@@ -40,7 +40,7 @@
             msg = "L3 Agent Scheduler Extension not enabled."
             raise cls.skipException(msg)
         # Trying to get agent details for L3 Agent
-        resp, body = cls.admin_client.list_agents()
+        body = cls.admin_client.list_agents()
         agents = body['agents']
         for agent in agents:
             if agent['agent_type'] == 'L3 agent':
@@ -52,18 +52,18 @@
 
     @test.attr(type='smoke')
     def test_list_routers_on_l3_agent(self):
-        _, body = self.admin_client.list_routers_on_l3_agent(self.agent['id'])
+        self.admin_client.list_routers_on_l3_agent(self.agent['id'])
 
     @test.attr(type='smoke')
     def test_add_list_remove_router_on_l3_agent(self):
         l3_agent_ids = list()
         name = data_utils.rand_name('router1-')
-        resp, router = self.client.create_router(name)
+        router = self.client.create_router(name)
         self.addCleanup(self.client.delete_router, router['router']['id'])
-        _, body = self.admin_client.add_router_to_l3_agent(
+        self.admin_client.add_router_to_l3_agent(
             self.agent['id'],
             router['router']['id'])
-        _, body = self.admin_client.list_l3_agents_hosting_router(
+        body = self.admin_client.list_l3_agents_hosting_router(
             router['router']['id'])
         for agent in body['agents']:
             l3_agent_ids.append(agent['id'])
@@ -71,7 +71,7 @@
             self.assertEqual('L3 agent', agent['agent_type'])
         self.assertIn(self.agent['id'], l3_agent_ids)
         del l3_agent_ids[:]
-        _, body = self.admin_client.remove_router_from_l3_agent(
+        body = self.admin_client.remove_router_from_l3_agent(
             self.agent['id'],
             router['router']['id'])
         # NOTE(afazekas): The deletion not asserted, because neutron
diff --git a/tempest/api/network/admin/test_lbaas_agent_scheduler.py b/tempest/api/network/admin/test_lbaas_agent_scheduler.py
index 03296a4..da1af36 100644
--- a/tempest/api/network/admin/test_lbaas_agent_scheduler.py
+++ b/tempest/api/network/admin/test_lbaas_agent_scheduler.py
@@ -49,13 +49,13 @@
     @test.attr(type='smoke')
     def test_list_pools_on_lbaas_agent(self):
         found = False
-        _, body = self.admin_client.list_agents(
+        body = self.admin_client.list_agents(
             agent_type="Loadbalancer agent")
         agents = body['agents']
         for a in agents:
             msg = 'Load Balancer agent expected'
             self.assertEqual(a['agent_type'], 'Loadbalancer agent', msg)
-            _, body = (
+            body = (
                 self.admin_client.list_pools_hosted_by_one_lbaas_agent(
                     a['id']))
             pools = body['pools']
@@ -66,6 +66,6 @@
 
     @test.attr(type='smoke')
     def test_show_lbaas_agent_hosting_pool(self):
-        _, body = self.admin_client.show_lbaas_agent_hosting_pool(
+        body = self.admin_client.show_lbaas_agent_hosting_pool(
             self.pool['id'])
         self.assertEqual('Loadbalancer agent', body['agent']['agent_type'])
diff --git a/tempest/api/network/admin/test_load_balancer_admin_actions.py b/tempest/api/network/admin/test_load_balancer_admin_actions.py
index 15d06e3..e81616b 100644
--- a/tempest/api/network/admin/test_load_balancer_admin_actions.py
+++ b/tempest/api/network/admin/test_load_balancer_admin_actions.py
@@ -46,7 +46,7 @@
     @test.attr(type='smoke')
     def test_create_vip_as_admin_for_another_tenant(self):
         name = data_utils.rand_name('vip-')
-        _, body = self.admin_client.create_pool(
+        body = self.admin_client.create_pool(
             name=data_utils.rand_name('pool-'),
             lb_method="ROUND_ROBIN",
             protocol="HTTP",
@@ -54,24 +54,24 @@
             tenant_id=self.tenant_id)
         pool = body['pool']
         self.addCleanup(self.admin_client.delete_pool, pool['id'])
-        _, body = self.admin_client.create_vip(name=name,
-                                               protocol="HTTP",
-                                               protocol_port=80,
-                                               subnet_id=self.subnet['id'],
-                                               pool_id=pool['id'],
-                                               tenant_id=self.tenant_id)
+        body = self.admin_client.create_vip(name=name,
+                                            protocol="HTTP",
+                                            protocol_port=80,
+                                            subnet_id=self.subnet['id'],
+                                            pool_id=pool['id'],
+                                            tenant_id=self.tenant_id)
         vip = body['vip']
         self.addCleanup(self.admin_client.delete_vip, vip['id'])
         self.assertIsNotNone(vip['id'])
         self.assertEqual(self.tenant_id, vip['tenant_id'])
-        _, body = self.client.show_vip(vip['id'])
+        body = self.client.show_vip(vip['id'])
         show_vip = body['vip']
         self.assertEqual(vip['id'], show_vip['id'])
         self.assertEqual(vip['name'], show_vip['name'])
 
     @test.attr(type='smoke')
     def test_create_health_monitor_as_admin_for_another_tenant(self):
-        _, body = (
+        body = (
             self.admin_client.create_health_monitor(delay=4,
                                                     max_retries=3,
                                                     type="TCP",
@@ -82,13 +82,13 @@
                         health_monitor['id'])
         self.assertIsNotNone(health_monitor['id'])
         self.assertEqual(self.tenant_id, health_monitor['tenant_id'])
-        _, body = self.client.show_health_monitor(health_monitor['id'])
+        body = self.client.show_health_monitor(health_monitor['id'])
         show_health_monitor = body['health_monitor']
         self.assertEqual(health_monitor['id'], show_health_monitor['id'])
 
     @test.attr(type='smoke')
     def test_create_pool_from_admin_user_other_tenant(self):
-        _, body = self.admin_client.create_pool(
+        body = self.admin_client.create_pool(
             name=data_utils.rand_name('pool-'),
             lb_method="ROUND_ROBIN",
             protocol="HTTP",
@@ -101,10 +101,10 @@
 
     @test.attr(type='smoke')
     def test_create_member_from_admin_user_other_tenant(self):
-        _, body = self.admin_client.create_member(address="10.0.9.47",
-                                                  protocol_port=80,
-                                                  pool_id=self.pool['id'],
-                                                  tenant_id=self.tenant_id)
+        body = self.admin_client.create_member(address="10.0.9.47",
+                                               protocol_port=80,
+                                               pool_id=self.pool['id'],
+                                               tenant_id=self.tenant_id)
         member = body['member']
         self.addCleanup(self.admin_client.delete_member, member['id'])
         self.assertIsNotNone(member['id'])
diff --git a/tempest/api/network/admin/test_quotas.py b/tempest/api/network/admin/test_quotas.py
index 72aef36..54aa54c 100644
--- a/tempest/api/network/admin/test_quotas.py
+++ b/tempest/api/network/admin/test_quotas.py
@@ -57,14 +57,14 @@
         self.addCleanup(self.identity_admin_client.delete_tenant, tenant_id)
 
         # Change quotas for tenant
-        _, quota_set = self.admin_client.update_quotas(tenant_id,
-                                                       **new_quotas)
+        quota_set = self.admin_client.update_quotas(tenant_id,
+                                                    **new_quotas)
         self.addCleanup(self.admin_client.reset_quotas, tenant_id)
         for key, value in new_quotas.iteritems():
             self.assertEqual(value, quota_set[key])
 
         # Confirm our tenant is listed among tenants with non default quotas
-        _, non_default_quotas = self.admin_client.list_quotas()
+        non_default_quotas = self.admin_client.list_quotas()
         found = False
         for qs in non_default_quotas['quotas']:
             if qs['tenant_id'] == tenant_id:
@@ -72,14 +72,14 @@
         self.assertTrue(found)
 
         # Confirm from API quotas were changed as requested for tenant
-        _, quota_set = self.admin_client.show_quotas(tenant_id)
+        quota_set = self.admin_client.show_quotas(tenant_id)
         quota_set = quota_set['quota']
         for key, value in new_quotas.iteritems():
             self.assertEqual(value, quota_set[key])
 
         # Reset quotas to default and confirm
-        _, body = self.admin_client.reset_quotas(tenant_id)
-        _, non_default_quotas = self.admin_client.list_quotas()
+        self.admin_client.reset_quotas(tenant_id)
+        non_default_quotas = self.admin_client.list_quotas()
         for q in non_default_quotas['quotas']:
             self.assertNotEqual(tenant_id, q['tenant_id'])
 
diff --git a/tempest/api/network/base.py b/tempest/api/network/base.py
index b13dd22..12b2d13 100644
--- a/tempest/api/network/base.py
+++ b/tempest/api/network/base.py
@@ -185,7 +185,7 @@
         """Wrapper utility that returns a test network."""
         network_name = network_name or data_utils.rand_name('test-network-')
 
-        resp, body = cls.client.create_network(name=network_name)
+        body = cls.client.create_network(name=network_name)
         network = body['network']
         cls.networks.append(network)
         return network
@@ -216,7 +216,7 @@
             else:
                 gateway_ip = gateway
             try:
-                resp, body = client.create_subnet(
+                body = client.create_subnet(
                     network_id=network['id'],
                     cidr=str(subnet_cidr),
                     ip_version=ip_version,
@@ -237,8 +237,8 @@
     @classmethod
     def create_port(cls, network, **kwargs):
         """Wrapper utility that returns a test port."""
-        resp, body = cls.client.create_port(network_id=network['id'],
-                                            **kwargs)
+        body = cls.client.create_port(network_id=network['id'],
+                                      **kwargs)
         port = body['port']
         cls.ports.append(port)
         return port
@@ -246,8 +246,8 @@
     @classmethod
     def update_port(cls, port, **kwargs):
         """Wrapper utility that updates a test port."""
-        resp, body = cls.client.update_port(port['id'],
-                                            **kwargs)
+        body = cls.client.update_port(port['id'],
+                                      **kwargs)
         return body['port']
 
     @classmethod
@@ -258,7 +258,7 @@
             ext_gw_info['network_id'] = external_network_id
         if enable_snat:
             ext_gw_info['enable_snat'] = enable_snat
-        resp, body = cls.client.create_router(
+        body = cls.client.create_router(
             router_name, external_gateway_info=ext_gw_info,
             admin_state_up=admin_state_up)
         router = body['router']
@@ -268,7 +268,7 @@
     @classmethod
     def create_floatingip(cls, external_network_id):
         """Wrapper utility that returns a test floating IP."""
-        resp, body = cls.client.create_floatingip(
+        body = cls.client.create_floatingip(
             floating_network_id=external_network_id)
         fip = body['floatingip']
         cls.floating_ips.append(fip)
@@ -277,7 +277,7 @@
     @classmethod
     def create_pool(cls, name, lb_method, protocol, subnet):
         """Wrapper utility that returns a test pool."""
-        resp, body = cls.client.create_pool(
+        body = cls.client.create_pool(
             name=name,
             lb_method=lb_method,
             protocol=protocol,
@@ -289,25 +289,25 @@
     @classmethod
     def update_pool(cls, name):
         """Wrapper utility that returns a test pool."""
-        resp, body = cls.client.update_pool(name=name)
+        body = cls.client.update_pool(name=name)
         pool = body['pool']
         return pool
 
     @classmethod
     def create_vip(cls, name, protocol, protocol_port, subnet, pool):
         """Wrapper utility that returns a test vip."""
-        resp, body = cls.client.create_vip(name=name,
-                                           protocol=protocol,
-                                           protocol_port=protocol_port,
-                                           subnet_id=subnet['id'],
-                                           pool_id=pool['id'])
+        body = cls.client.create_vip(name=name,
+                                     protocol=protocol,
+                                     protocol_port=protocol_port,
+                                     subnet_id=subnet['id'],
+                                     pool_id=pool['id'])
         vip = body['vip']
         cls.vips.append(vip)
         return vip
 
     @classmethod
     def update_vip(cls, name):
-        resp, body = cls.client.update_vip(name=name)
+        body = cls.client.update_vip(name=name)
         vip = body['vip']
         return vip
 
@@ -316,47 +316,47 @@
         """Wrapper utility that returns a test member."""
         ip_version = ip_version if ip_version is not None else cls._ip_version
         member_address = "fd00::abcd" if ip_version == 6 else "10.0.9.46"
-        resp, body = cls.client.create_member(address=member_address,
-                                              protocol_port=protocol_port,
-                                              pool_id=pool['id'])
+        body = cls.client.create_member(address=member_address,
+                                        protocol_port=protocol_port,
+                                        pool_id=pool['id'])
         member = body['member']
         cls.members.append(member)
         return member
 
     @classmethod
     def update_member(cls, admin_state_up):
-        resp, body = cls.client.update_member(admin_state_up=admin_state_up)
+        body = cls.client.update_member(admin_state_up=admin_state_up)
         member = body['member']
         return member
 
     @classmethod
     def create_health_monitor(cls, delay, max_retries, Type, timeout):
         """Wrapper utility that returns a test health monitor."""
-        resp, body = cls.client.create_health_monitor(delay=delay,
-                                                      max_retries=max_retries,
-                                                      type=Type,
-                                                      timeout=timeout)
+        body = cls.client.create_health_monitor(delay=delay,
+                                                max_retries=max_retries,
+                                                type=Type,
+                                                timeout=timeout)
         health_monitor = body['health_monitor']
         cls.health_monitors.append(health_monitor)
         return health_monitor
 
     @classmethod
     def update_health_monitor(cls, admin_state_up):
-        resp, body = cls.client.update_vip(admin_state_up=admin_state_up)
+        body = cls.client.update_vip(admin_state_up=admin_state_up)
         health_monitor = body['health_monitor']
         return health_monitor
 
     @classmethod
     def create_router_interface(cls, router_id, subnet_id):
         """Wrapper utility that returns a router interface."""
-        resp, interface = cls.client.add_router_interface_with_subnet_id(
+        interface = cls.client.add_router_interface_with_subnet_id(
             router_id, subnet_id)
         return interface
 
     @classmethod
     def create_vpnservice(cls, subnet_id, router_id):
         """Wrapper utility that returns a test vpn service."""
-        resp, body = cls.client.create_vpnservice(
+        body = cls.client.create_vpnservice(
             subnet_id=subnet_id, router_id=router_id, admin_state_up=True,
             name=data_utils.rand_name("vpnservice-"))
         vpnservice = body['vpnservice']
@@ -366,7 +366,7 @@
     @classmethod
     def create_ikepolicy(cls, name):
         """Wrapper utility that returns a test ike policy."""
-        resp, body = cls.client.create_ikepolicy(name=name)
+        body = cls.client.create_ikepolicy(name=name)
         ikepolicy = body['ikepolicy']
         cls.ikepolicies.append(ikepolicy)
         return ikepolicy
@@ -374,7 +374,7 @@
     @classmethod
     def create_firewall_rule(cls, action, protocol):
         """Wrapper utility that returns a test firewall rule."""
-        resp, body = cls.client.create_firewall_rule(
+        body = cls.client.create_firewall_rule(
             name=data_utils.rand_name("fw-rule"),
             action=action,
             protocol=protocol)
@@ -385,7 +385,7 @@
     @classmethod
     def create_firewall_policy(cls):
         """Wrapper utility that returns a test firewall policy."""
-        resp, body = cls.client.create_firewall_policy(
+        body = cls.client.create_firewall_policy(
             name=data_utils.rand_name("fw-policy"))
         fw_policy = body['firewall_policy']
         cls.fw_policies.append(fw_policy)
@@ -393,7 +393,7 @@
 
     @classmethod
     def delete_router(cls, router):
-        resp, body = cls.client.list_router_interfaces(router['id'])
+        body = cls.client.list_router_interfaces(router['id'])
         interfaces = body['ports']
         for i in interfaces:
             cls.client.remove_router_interface_with_subnet_id(
@@ -403,7 +403,7 @@
     @classmethod
     def create_ipsecpolicy(cls, name):
         """Wrapper utility that returns a test ipsec policy."""
-        _, body = cls.client.create_ipsecpolicy(name=name)
+        body = cls.client.create_ipsecpolicy(name=name)
         ipsecpolicy = body['ipsecpolicy']
         cls.ipsecpolicies.append(ipsecpolicy)
         return ipsecpolicy
@@ -428,7 +428,7 @@
     @classmethod
     def create_metering_label(cls, name, description):
         """Wrapper utility that returns a test metering label."""
-        resp, body = cls.admin_client.create_metering_label(
+        body = cls.admin_client.create_metering_label(
             description=description,
             name=data_utils.rand_name("metering-label"))
         metering_label = body['metering_label']
@@ -439,7 +439,7 @@
     def create_metering_label_rule(cls, remote_ip_prefix, direction,
                                    metering_label_id):
         """Wrapper utility that returns a test metering label rule."""
-        resp, body = cls.admin_client.create_metering_label_rule(
+        body = cls.admin_client.create_metering_label_rule(
             remote_ip_prefix=remote_ip_prefix, direction=direction,
             metering_label_id=metering_label_id)
         metering_label_rule = body['metering_label_rule']
diff --git a/tempest/api/network/base_routers.py b/tempest/api/network/base_routers.py
index 38985a0..1b580b0 100644
--- a/tempest/api/network/base_routers.py
+++ b/tempest/api/network/base_routers.py
@@ -29,14 +29,14 @@
         self.client.delete_router(router_id)
         # Asserting that the router is not found in the list
         # after deletion
-        _, list_body = self.client.list_routers()
+        list_body = self.client.list_routers()
         routers_list = list()
         for router in list_body['routers']:
             routers_list.append(router['id'])
         self.assertNotIn(router_id, routers_list)
 
     def _add_router_interface_with_subnet_id(self, router_id, subnet_id):
-        _, interface = self.client.add_router_interface_with_subnet_id(
+        interface = self.client.add_router_interface_with_subnet_id(
             router_id, subnet_id)
         self.addCleanup(self._remove_router_interface_with_subnet_id,
                         router_id, subnet_id)
@@ -44,11 +44,11 @@
         return interface
 
     def _remove_router_interface_with_subnet_id(self, router_id, subnet_id):
-        _, body = self.client.remove_router_interface_with_subnet_id(
+        body = self.client.remove_router_interface_with_subnet_id(
             router_id, subnet_id)
         self.assertEqual(subnet_id, body['subnet_id'])
 
     def _remove_router_interface_with_port_id(self, router_id, port_id):
-        _, body = self.client.remove_router_interface_with_port_id(router_id,
-                                                                   port_id)
+        body = self.client.remove_router_interface_with_port_id(router_id,
+                                                                port_id)
         self.assertEqual(port_id, body['port_id'])
diff --git a/tempest/api/network/base_security_groups.py b/tempest/api/network/base_security_groups.py
index 622ed01..623e2d0 100644
--- a/tempest/api/network/base_security_groups.py
+++ b/tempest/api/network/base_security_groups.py
@@ -26,7 +26,7 @@
     def _create_security_group(self):
         # Create a security group
         name = data_utils.rand_name('secgroup-')
-        _, group_create_body = self.client.create_security_group(name=name)
+        group_create_body = self.client.create_security_group(name=name)
         self.addCleanup(self._delete_security_group,
                         group_create_body['security_group']['id'])
         self.assertEqual(group_create_body['security_group']['name'], name)
@@ -36,7 +36,7 @@
         self.client.delete_security_group(secgroup_id)
         # Asserting that the security group is not found in the list
         # after deletion
-        _, list_body = self.client.list_security_groups()
+        list_body = self.client.list_security_groups()
         secgroup_list = list()
         for secgroup in list_body['security_groups']:
             secgroup_list.append(secgroup['id'])
@@ -46,7 +46,7 @@
         self.client.delete_security_group_rule(rule_id)
         # Asserting that the security group is not found in the list
         # after deletion
-        _, list_body = self.client.list_security_group_rules()
+        list_body = self.client.list_security_group_rules()
         rules_list = list()
         for rule in list_body['security_group_rules']:
             rules_list.append(rule['id'])
diff --git a/tempest/api/network/test_allowed_address_pair.py b/tempest/api/network/test_allowed_address_pair.py
index 7b7a5db..57887ac 100644
--- a/tempest/api/network/test_allowed_address_pair.py
+++ b/tempest/api/network/test_allowed_address_pair.py
@@ -58,14 +58,14 @@
         # Create port with allowed address pair attribute
         allowed_address_pairs = [{'ip_address': self.ip_address,
                                   'mac_address': self.mac_address}]
-        _, body = self.client.create_port(
+        body = self.client.create_port(
             network_id=self.network['id'],
             allowed_address_pairs=allowed_address_pairs)
         port_id = body['port']['id']
         self.addCleanup(self.client.delete_port, port_id)
 
         # Confirm port was created with allowed address pair attribute
-        _, body = self.client.list_ports()
+        body = self.client.list_ports()
         ports = body['ports']
         port = [p for p in ports if p['id'] == port_id]
         msg = 'Created port not found in list of ports returned by Neutron'
@@ -75,7 +75,7 @@
     @test.attr(type='smoke')
     def _update_port_with_address(self, address, mac_address=None, **kwargs):
         # Create a port without allowed address pair
-        _, body = self.client.create_port(network_id=self.network['id'])
+        body = self.client.create_port(network_id=self.network['id'])
         port_id = body['port']['id']
         self.addCleanup(self.client.delete_port, port_id)
         if mac_address is None:
@@ -86,7 +86,7 @@
                                   'mac_address': mac_address}]
         if kwargs:
             allowed_address_pairs.append(kwargs['allowed_address_pairs'])
-        _, body = self.client.update_port(
+        body = self.client.update_port(
             port_id, allowed_address_pairs=allowed_address_pairs)
         allowed_address_pair = body['port']['allowed_address_pairs']
         self.assertEqual(allowed_address_pair, allowed_address_pairs)
@@ -105,7 +105,7 @@
     @test.attr(type='smoke')
     def test_update_port_with_multiple_ip_mac_address_pair(self):
         # Create an ip _address and mac_address through port create
-        _, resp = self.client.create_port(network_id=self.network['id'])
+        resp = self.client.create_port(network_id=self.network['id'])
         newportid = resp['port']['id']
         self.addCleanup(self.client.delete_port, newportid)
         ipaddress = resp['port']['fixed_ips'][0]['ip_address']
diff --git a/tempest/api/network/test_dhcp_ipv6.py b/tempest/api/network/test_dhcp_ipv6.py
new file mode 100644
index 0000000..15c5421
--- /dev/null
+++ b/tempest/api/network/test_dhcp_ipv6.py
@@ -0,0 +1,389 @@
+# Copyright 2014 OpenStack Foundation
+# All Rights Reserved.
+#
+#    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.
+
+import netaddr
+import random
+
+from tempest.api.network import base
+from tempest.common.utils import data_utils
+from tempest import config
+from tempest import exceptions
+
+CONF = config.CONF
+
+
+class NetworksTestDHCPv6(base.BaseNetworkTest):
+    _interface = 'json'
+    _ip_version = 6
+
+    """ Test DHCPv6 specific features using SLAAC, stateless and
+    stateful settings for subnets. Also it shall check dual-stack
+    functionality (IPv4 + IPv6 together).
+    The tests include:
+        generating of SLAAC EUI-64 address in subnets with various settings
+        receiving SLAAC addresses in combinations of various subnets
+        receiving stateful IPv6 addresses
+        addressing in subnets with router
+    """
+
+    @classmethod
+    def resource_setup(cls):
+        msg = None
+        if not CONF.network_feature_enabled.ipv6:
+            msg = "IPv6 is not enabled"
+        elif not CONF.network_feature_enabled.ipv6_subnet_attributes:
+            msg = "DHCPv6 attributes are not enabled."
+        if msg:
+            raise cls.skipException(msg)
+        super(NetworksTestDHCPv6, cls).resource_setup()
+        cls.network = cls.create_network()
+
+    def _remove_from_list_by_index(self, things_list, elem):
+        for index, i in enumerate(things_list):
+            if i['id'] == elem['id']:
+                break
+        del things_list[index]
+
+    def _clean_network(self):
+        body = self.client.list_ports()
+        ports = body['ports']
+        for port in ports:
+            if (port['device_owner'] == 'network:router_interface'
+                and port['device_id'] in [r['id'] for r in self.routers]):
+                self.client.remove_router_interface_with_port_id(
+                    port['device_id'], port['id']
+                )
+            else:
+                if port['id'] in [p['id'] for p in self.ports]:
+                    self.client.delete_port(port['id'])
+                    self._remove_from_list_by_index(self.ports, port)
+        body = self.client.list_subnets()
+        subnets = body['subnets']
+        for subnet in subnets:
+            if subnet['id'] in [s['id'] for s in self.subnets]:
+                self.client.delete_subnet(subnet['id'])
+                self._remove_from_list_by_index(self.subnets, subnet)
+        body = self.client.list_routers()
+        routers = body['routers']
+        for router in routers:
+            if router['id'] in [r['id'] for r in self.routers]:
+                self.client.delete_router(router['id'])
+                self._remove_from_list_by_index(self.routers, router)
+
+    def _get_ips_from_subnet(self, **kwargs):
+        subnet = self.create_subnet(self.network, **kwargs)
+        port_mac = data_utils.rand_mac_address()
+        port = self.create_port(self.network, mac_address=port_mac)
+        real_ip = next(iter(port['fixed_ips']), None)['ip_address']
+        eui_ip = data_utils.get_ipv6_addr_by_EUI64(subnet['cidr'],
+                                                   port_mac).format()
+        return real_ip, eui_ip
+
+    def test_dhcpv6_stateless_eui64(self):
+        """When subnets configured with RAs SLAAC (AOM=100) and DHCP stateless
+        (AOM=110) both for radvd and dnsmasq, port shall receive IP address
+        calculated from its MAC.
+        """
+        for ra_mode, add_mode in (
+                ('slaac', 'slaac'),
+                ('dhcpv6-stateless', 'dhcpv6-stateless'),
+        ):
+            kwargs = {'ipv6_ra_mode': ra_mode,
+                      'ipv6_address_mode': add_mode}
+            real_ip, eui_ip = self._get_ips_from_subnet(**kwargs)
+            self._clean_network()
+            self.assertEqual(eui_ip, real_ip,
+                             ('Real port IP is %s, but shall be %s when '
+                              'ipv6_ra_mode=%s and ipv6_address_mode=%s') % (
+                                 real_ip, eui_ip, ra_mode, add_mode))
+
+    def test_dhcpv6_stateless_no_ra(self):
+        """When subnets configured with dnsmasq SLAAC and DHCP stateless
+        and there is no radvd, port shall receive IP address calculated
+        from its MAC and mask of subnet.
+        """
+        for ra_mode, add_mode in (
+                (None, 'slaac'),
+                (None, 'dhcpv6-stateless'),
+        ):
+            kwargs = {'ipv6_ra_mode': ra_mode,
+                      'ipv6_address_mode': add_mode}
+            kwargs = {k: v for k, v in kwargs.iteritems() if v}
+            real_ip, eui_ip = self._get_ips_from_subnet(**kwargs)
+            self._clean_network()
+            self.assertEqual(eui_ip, real_ip,
+                             ('Real port IP %s shall be equal to EUI-64 %s'
+                              'when ipv6_ra_mode=%s,ipv6_address_mode=%s') % (
+                                 real_ip, eui_ip,
+                                 ra_mode if ra_mode else "Off",
+                                 add_mode if add_mode else "Off"))
+
+    def test_dhcpv6_invalid_options(self):
+        """Different configurations for radvd and dnsmasq are not allowed"""
+        for ra_mode, add_mode in (
+                ('dhcpv6-stateless', 'dhcpv6-stateful'),
+                ('dhcpv6-stateless', 'slaac'),
+                ('slaac', 'dhcpv6-stateful'),
+                ('dhcpv6-stateful', 'dhcpv6-stateless'),
+                ('dhcpv6-stateful', 'slaac'),
+                ('slaac', 'dhcpv6-stateless'),
+        ):
+            kwargs = {'ipv6_ra_mode': ra_mode,
+                      'ipv6_address_mode': add_mode}
+            self.assertRaises(exceptions.BadRequest,
+                              self.create_subnet,
+                              self.network,
+                              **kwargs)
+
+    def test_dhcpv6_stateless_no_ra_no_dhcp(self):
+        """If no radvd option and no dnsmasq option is configured
+        port shall receive IP from fixed IPs list of subnet.
+        """
+        real_ip, eui_ip = self._get_ips_from_subnet()
+        self._clean_network()
+        self.assertNotEqual(eui_ip, real_ip,
+                            ('Real port IP %s equal to EUI-64 %s when '
+                             'ipv6_ra_mode=Off and ipv6_address_mode=Off,'
+                             'but shall be taken from fixed IPs') % (
+                                real_ip, eui_ip))
+
+    def test_dhcpv6_two_subnets(self):
+        """When one IPv6 subnet configured with dnsmasq SLAAC or DHCP stateless
+        and other IPv6 is with DHCP stateful, port shall receive EUI-64 IP
+        addresses from first subnet and DHCP address from second one.
+        Order of subnet creating should be unimportant.
+        """
+        for order in ("slaac_first", "dhcp_first"):
+            for ra_mode, add_mode in (
+                    ('slaac', 'slaac'),
+                    ('dhcpv6-stateless', 'dhcpv6-stateless'),
+            ):
+                kwargs = {'ipv6_ra_mode': ra_mode,
+                          'ipv6_address_mode': add_mode}
+                kwargs_dhcp = {'ipv6_address_mode': 'dhcpv6-stateful'}
+                if order == "slaac_first":
+                    subnet_slaac = self.create_subnet(self.network, **kwargs)
+                    subnet_dhcp = self.create_subnet(
+                        self.network, **kwargs_dhcp)
+                else:
+                    subnet_dhcp = self.create_subnet(
+                        self.network, **kwargs_dhcp)
+                    subnet_slaac = self.create_subnet(self.network, **kwargs)
+                port_mac = data_utils.rand_mac_address()
+                dhcp_ip = subnet_dhcp["allocation_pools"][0]["start"]
+                eui_ip = data_utils.get_ipv6_addr_by_EUI64(
+                    subnet_slaac['cidr'],
+                    port_mac
+                ).format()
+                # TODO(sergsh): remove this when 1219795 is fixed
+                dhcp_ip = [dhcp_ip, (netaddr.IPAddress(dhcp_ip) + 1).format()]
+                port = self.create_port(self.network, mac_address=port_mac)
+                real_ips = dict([(k['subnet_id'], k['ip_address'])
+                                 for k in port['fixed_ips']])
+                real_dhcp_ip, real_eui_ip = [real_ips[sub['id']]
+                                             for sub in subnet_dhcp,
+                                             subnet_slaac]
+                self.client.delete_port(port['id'])
+                self.ports.pop()
+                body = self.client.list_ports()
+                ports_id_list = [i['id'] for i in body['ports']]
+                self.assertNotIn(port['id'], ports_id_list)
+                self._clean_network()
+                self.assertEqual(real_eui_ip,
+                                 eui_ip,
+                                 'Real IP is {0}, but shall be {1}'.format(
+                                     real_eui_ip,
+                                     eui_ip))
+                self.assertIn(
+                    real_dhcp_ip, dhcp_ip,
+                    'Real IP is {0}, but shall be one from {1}'.format(
+                        real_dhcp_ip,
+                        str(dhcp_ip)))
+
+    def test_dhcpv6_64_subnets(self):
+        """When one IPv6 subnet configured with dnsmasq SLAAC or DHCP stateless
+        and other IPv4 is with DHCP of IPv4, port shall receive EUI-64 IP
+        addresses from first subnet and IPv4 DHCP address from second one.
+        Order of subnet creating should be unimportant.
+        """
+        for order in ("slaac_first", "dhcp_first"):
+            for ra_mode, add_mode in (
+                    ('slaac', 'slaac'),
+                    ('dhcpv6-stateless', 'dhcpv6-stateless'),
+            ):
+                kwargs = {'ipv6_ra_mode': ra_mode,
+                          'ipv6_address_mode': add_mode}
+                if order == "slaac_first":
+                    subnet_slaac = self.create_subnet(self.network, **kwargs)
+                    subnet_dhcp = self.create_subnet(
+                        self.network, ip_version=4)
+                else:
+                    subnet_dhcp = self.create_subnet(
+                        self.network, ip_version=4)
+                    subnet_slaac = self.create_subnet(self.network, **kwargs)
+                port_mac = data_utils.rand_mac_address()
+                dhcp_ip = subnet_dhcp["allocation_pools"][0]["start"]
+                eui_ip = data_utils.get_ipv6_addr_by_EUI64(
+                    subnet_slaac['cidr'],
+                    port_mac
+                ).format()
+                # TODO(sergsh): remove this when 1219795 is fixed
+                dhcp_ip = [dhcp_ip, (netaddr.IPAddress(dhcp_ip) + 1).format()]
+                port = self.create_port(self.network, mac_address=port_mac)
+                real_ips = dict([(k['subnet_id'], k['ip_address'])
+                                 for k in port['fixed_ips']])
+                real_dhcp_ip, real_eui_ip = [real_ips[sub['id']]
+                                             for sub in subnet_dhcp,
+                                             subnet_slaac]
+                self._clean_network()
+                self.assertTrue({real_eui_ip,
+                                 real_dhcp_ip}.issubset([eui_ip] + dhcp_ip))
+                self.assertEqual(real_eui_ip,
+                                 eui_ip,
+                                 'Real IP is {0}, but shall be {1}'.format(
+                                     real_eui_ip,
+                                     eui_ip))
+                self.assertIn(
+                    real_dhcp_ip, dhcp_ip,
+                    'Real IP is {0}, but shall be one from {1}'.format(
+                        real_dhcp_ip,
+                        str(dhcp_ip)))
+
+    def test_dhcp_stateful(self):
+        """With all options below, DHCPv6 shall allocate first
+        address from subnet pool to port.
+        """
+        for ra_mode, add_mode in (
+                ('dhcpv6-stateful', 'dhcpv6-stateful'),
+                ('dhcpv6-stateful', None),
+                (None, 'dhcpv6-stateful'),
+        ):
+            kwargs = {'ipv6_ra_mode': ra_mode,
+                      'ipv6_address_mode': add_mode}
+            kwargs = {k: v for k, v in kwargs.iteritems() if v}
+            subnet = self.create_subnet(self.network, **kwargs)
+            port = self.create_port(self.network)
+            port_ip = next(iter(port['fixed_ips']), None)['ip_address']
+            dhcp_ip = subnet["allocation_pools"][0]["start"]
+            # TODO(sergsh): remove this when 1219795 is fixed
+            dhcp_ip = [dhcp_ip, (netaddr.IPAddress(dhcp_ip) + 1).format()]
+            self._clean_network()
+            self.assertIn(
+                port_ip, dhcp_ip,
+                'Real IP is {0}, but shall be one from {1}'.format(
+                    port_ip,
+                    str(dhcp_ip)))
+
+    def test_dhcp_stateful_fixedips(self):
+        """With all options below, port shall be able to get
+        requested IP from fixed IP range not depending on
+        DHCP stateful (not SLAAC!) settings configured.
+        """
+        for ra_mode, add_mode in (
+                ('dhcpv6-stateful', 'dhcpv6-stateful'),
+                ('dhcpv6-stateful', None),
+                (None, 'dhcpv6-stateful'),
+        ):
+            kwargs = {'ipv6_ra_mode': ra_mode,
+                      'ipv6_address_mode': add_mode}
+            kwargs = {k: v for k, v in kwargs.iteritems() if v}
+            subnet = self.create_subnet(self.network, **kwargs)
+            ip_range = netaddr.IPRange(subnet["allocation_pools"][0]["start"],
+                                       subnet["allocation_pools"][0]["end"])
+            ip = netaddr.IPAddress(random.randrange(ip_range.first,
+                                                    ip_range.last)).format()
+            port = self.create_port(self.network,
+                                    fixed_ips=[{'subnet_id': subnet['id'],
+                                                'ip_address': ip}])
+            port_ip = next(iter(port['fixed_ips']), None)['ip_address']
+            self._clean_network()
+            self.assertEqual(port_ip, ip,
+                             ("Port IP %s is not as fixed IP from "
+                              "port create request: %s") % (
+                                 port_ip, ip))
+
+    def test_dhcp_stateful_fixedips_outrange(self):
+        """When port gets IP address from fixed IP range it
+        shall be checked if it's from subnets range.
+        """
+        kwargs = {'ipv6_ra_mode': 'dhcpv6-stateful',
+                  'ipv6_address_mode': 'dhcpv6-stateful'}
+        subnet = self.create_subnet(self.network, **kwargs)
+        ip_range = netaddr.IPRange(subnet["allocation_pools"][0]["start"],
+                                   subnet["allocation_pools"][0]["end"])
+        ip = netaddr.IPAddress(random.randrange(
+            ip_range.last + 1, ip_range.last + 10)).format()
+        self.assertRaisesRegexp(exceptions.BadRequest,
+                                "not a valid IP for the defined subnet",
+                                self.create_port,
+                                self.network,
+                                fixed_ips=[{'subnet_id': subnet['id'],
+                                            'ip_address': ip}])
+
+    def test_dhcp_stateful_fixedips_duplicate(self):
+        """When port gets IP address from fixed IP range it
+        shall be checked if it's not duplicate.
+        """
+        kwargs = {'ipv6_ra_mode': 'dhcpv6-stateful',
+                  'ipv6_address_mode': 'dhcpv6-stateful'}
+        subnet = self.create_subnet(self.network, **kwargs)
+        ip_range = netaddr.IPRange(subnet["allocation_pools"][0]["start"],
+                                   subnet["allocation_pools"][0]["end"])
+        ip = netaddr.IPAddress(random.randrange(
+            ip_range.first, ip_range.last)).format()
+        self.create_port(self.network,
+                         fixed_ips=[
+                             {'subnet_id': subnet['id'],
+                              'ip_address': ip}])
+        self.assertRaisesRegexp(exceptions.Conflict,
+                                "object with that identifier already exists",
+                                self.create_port,
+                                self.network,
+                                fixed_ips=[{'subnet_id': subnet['id'],
+                                            'ip_address': ip}])
+
+    def _create_subnet_router(self, kwargs):
+        subnet = self.create_subnet(self.network, **kwargs)
+        router = self.create_router(
+            router_name=data_utils.rand_name("routerv6-"),
+            admin_state_up=True)
+        port = self.create_router_interface(router['id'],
+                                            subnet['id'])
+        body = self.client.show_port(port['port_id'])
+        return subnet, body['port']
+
+    def test_dhcp_stateful_router(self):
+        """With all options below the router interface shall
+        receive DHCPv6 IP address from allocation pool.
+        """
+        for ra_mode, add_mode in (
+                ('dhcpv6-stateful', 'dhcpv6-stateful'),
+                ('dhcpv6-stateful', None),
+                (None, 'dhcpv6-stateful'),
+        ):
+            kwargs = {'ipv6_ra_mode': ra_mode,
+                      'ipv6_address_mode': add_mode}
+            kwargs = {k: v for k, v in kwargs.iteritems() if v}
+            subnet, port = self._create_subnet_router(kwargs)
+            port_ip = next(iter(port['fixed_ips']), None)['ip_address']
+            self._clean_network()
+            self.assertEqual(port_ip, subnet['gateway_ip'],
+                             ("Port IP %s is not as first IP from "
+                              "subnets allocation pool: %s") % (
+                                 port_ip, subnet['gateway_ip']))
+
+    def tearDown(self):
+        self._clean_network()
+        super(NetworksTestDHCPv6, self).tearDown()
diff --git a/tempest/api/network/test_extensions.py b/tempest/api/network/test_extensions.py
index 1c7feb3..54c3cb9 100644
--- a/tempest/api/network/test_extensions.py
+++ b/tempest/api/network/test_extensions.py
@@ -47,14 +47,14 @@
         expected_alias = [ext for ext in expected_alias if
                           test.is_extension_enabled(ext, 'network')]
         actual_alias = list()
-        _, extensions = self.client.list_extensions()
+        extensions = self.client.list_extensions()
         list_extensions = extensions['extensions']
         # Show and verify the details of the available extensions
         for ext in list_extensions:
             ext_name = ext['name']
             ext_alias = ext['alias']
             actual_alias.append(ext['alias'])
-            _, ext_details = self.client.show_extension(ext_alias)
+            ext_details = self.client.show_extension(ext_alias)
             ext_details = ext_details['extension']
 
             self.assertIsNotNone(ext_details)
diff --git a/tempest/api/network/test_extra_dhcp_options.py b/tempest/api/network/test_extra_dhcp_options.py
index 6d083b3..bd70323 100644
--- a/tempest/api/network/test_extra_dhcp_options.py
+++ b/tempest/api/network/test_extra_dhcp_options.py
@@ -57,14 +57,14 @@
     @test.attr(type='smoke')
     def test_create_list_port_with_extra_dhcp_options(self):
         # Create a port with Extra DHCP Options
-        _, body = self.client.create_port(
+        body = self.client.create_port(
             network_id=self.network['id'],
             extra_dhcp_opts=self.extra_dhcp_opts)
         port_id = body['port']['id']
         self.addCleanup(self.client.delete_port, port_id)
 
         # Confirm port created has Extra DHCP Options
-        _, body = self.client.list_ports()
+        body = self.client.list_ports()
         ports = body['ports']
         port = [p for p in ports if p['id'] == port_id]
         self.assertTrue(port)
@@ -74,12 +74,12 @@
     def test_update_show_port_with_extra_dhcp_options(self):
         # Update port with extra dhcp options
         name = data_utils.rand_name('new-port-name')
-        _, body = self.client.update_port(
+        body = self.client.update_port(
             self.port['id'],
             name=name,
             extra_dhcp_opts=self.extra_dhcp_opts)
         # Confirm extra dhcp options were added to the port
-        _, body = self.client.show_port(self.port['id'])
+        body = self.client.show_port(self.port['id'])
         self._confirm_extra_dhcp_options(body['port'], self.extra_dhcp_opts)
 
     def _confirm_extra_dhcp_options(self, port, extra_dhcp_opts):
diff --git a/tempest/api/network/test_floating_ips.py b/tempest/api/network/test_floating_ips.py
index 9beae0a..1151c5d 100644
--- a/tempest/api/network/test_floating_ips.py
+++ b/tempest/api/network/test_floating_ips.py
@@ -67,7 +67,7 @@
     @test.attr(type='smoke')
     def test_create_list_show_update_delete_floating_ip(self):
         # Creates a floating IP
-        _, body = self.client.create_floatingip(
+        body = self.client.create_floatingip(
             floating_network_id=self.ext_net_id,
             port_id=self.ports[0]['id'])
         created_floating_ip = body['floatingip']
@@ -82,7 +82,7 @@
         self.assertIn(created_floating_ip['fixed_ip_address'],
                       [ip['ip_address'] for ip in self.ports[0]['fixed_ips']])
         # Verifies the details of a floating_ip
-        _, floating_ip = self.client.show_floatingip(created_floating_ip['id'])
+        floating_ip = self.client.show_floatingip(created_floating_ip['id'])
         shown_floating_ip = floating_ip['floatingip']
         self.assertEqual(shown_floating_ip['id'], created_floating_ip['id'])
         self.assertEqual(shown_floating_ip['floating_network_id'],
@@ -94,13 +94,13 @@
         self.assertEqual(shown_floating_ip['port_id'], self.ports[0]['id'])
 
         # Verify the floating ip exists in the list of all floating_ips
-        _, floating_ips = self.client.list_floatingips()
+        floating_ips = self.client.list_floatingips()
         floatingip_id_list = list()
         for f in floating_ips['floatingips']:
             floatingip_id_list.append(f['id'])
         self.assertIn(created_floating_ip['id'], floatingip_id_list)
         # Associate floating IP to the other port
-        _, floating_ip = self.client.update_floatingip(
+        floating_ip = self.client.update_floatingip(
             created_floating_ip['id'],
             port_id=self.ports[1]['id'])
         updated_floating_ip = floating_ip['floatingip']
@@ -110,7 +110,7 @@
         self.assertEqual(updated_floating_ip['router_id'], self.router['id'])
 
         # Disassociate floating IP from the port
-        _, floating_ip = self.client.update_floatingip(
+        floating_ip = self.client.update_floatingip(
             created_floating_ip['id'],
             port_id=None)
         updated_floating_ip = floating_ip['floatingip']
@@ -121,21 +121,21 @@
     @test.attr(type='smoke')
     def test_floating_ip_delete_port(self):
         # Create a floating IP
-        _, body = self.client.create_floatingip(
+        body = self.client.create_floatingip(
             floating_network_id=self.ext_net_id)
         created_floating_ip = body['floatingip']
         self.addCleanup(self.client.delete_floatingip,
                         created_floating_ip['id'])
         # Create a port
-        resp, port = self.client.create_port(network_id=self.network['id'])
+        port = self.client.create_port(network_id=self.network['id'])
         created_port = port['port']
-        _, floating_ip = self.client.update_floatingip(
+        floating_ip = self.client.update_floatingip(
             created_floating_ip['id'],
             port_id=created_port['id'])
         # Delete port
         self.client.delete_port(created_port['id'])
         # Verifies the details of the floating_ip
-        _, floating_ip = self.client.show_floatingip(created_floating_ip['id'])
+        floating_ip = self.client.show_floatingip(created_floating_ip['id'])
         shown_floating_ip = floating_ip['floatingip']
         # Confirm the fields are back to None
         self.assertEqual(shown_floating_ip['id'], created_floating_ip['id'])
@@ -146,7 +146,7 @@
     @test.attr(type='smoke')
     def test_floating_ip_update_different_router(self):
         # Associate a floating IP to a port on a router
-        _, body = self.client.create_floatingip(
+        body = self.client.create_floatingip(
             floating_network_id=self.ext_net_id,
             port_id=self.ports[1]['id'])
         created_floating_ip = body['floatingip']
@@ -160,7 +160,7 @@
         self.create_router_interface(router2['id'], subnet2['id'])
         port_other_router = self.create_port(network2)
         # Associate floating IP to the other port on another router
-        _, floating_ip = self.client.update_floatingip(
+        floating_ip = self.client.update_floatingip(
             created_floating_ip['id'],
             port_id=port_other_router['id'])
         updated_floating_ip = floating_ip['floatingip']
@@ -171,7 +171,7 @@
 
     @test.attr(type='smoke')
     def test_create_floating_ip_specifying_a_fixed_ip_address(self):
-        _, body = self.client.create_floatingip(
+        body = self.client.create_floatingip(
             floating_network_id=self.ext_net_id,
             port_id=self.ports[1]['id'],
             fixed_ip_address=self.ports[1]['fixed_ips'][0]['ip_address'])
@@ -181,7 +181,7 @@
         self.assertIsNotNone(created_floating_ip['id'])
         self.assertEqual(created_floating_ip['fixed_ip_address'],
                          self.ports[1]['fixed_ips'][0]['ip_address'])
-        _, floating_ip = self.client.update_floatingip(
+        floating_ip = self.client.update_floatingip(
             created_floating_ip['id'],
             port_id=None)
         self.assertIsNone(floating_ip['floatingip']['port_id'])
@@ -193,12 +193,12 @@
         list_ips = [str(ip) for ip in ips[-3:-1]]
         fixed_ips = [{'ip_address': list_ips[0]}, {'ip_address': list_ips[1]}]
         # Create port
-        _, body = self.client.create_port(network_id=self.network['id'],
-                                          fixed_ips=fixed_ips)
+        body = self.client.create_port(network_id=self.network['id'],
+                                       fixed_ips=fixed_ips)
         port = body['port']
         self.addCleanup(self.client.delete_port, port['id'])
         # Create floating ip
-        _, body = self.client.create_floatingip(
+        body = self.client.create_floatingip(
             floating_network_id=self.ext_net_id,
             port_id=port['id'],
             fixed_ip_address=list_ips[0])
@@ -207,9 +207,9 @@
         self.assertIsNotNone(floating_ip['id'])
         self.assertEqual(floating_ip['fixed_ip_address'], list_ips[0])
         # Update floating ip
-        _, body = self.client.update_floatingip(floating_ip['id'],
-                                                port_id=port['id'],
-                                                fixed_ip_address=list_ips[1])
+        body = self.client.update_floatingip(floating_ip['id'],
+                                             port_id=port['id'],
+                                             fixed_ip_address=list_ips[1])
         update_floating_ip = body['floatingip']
         self.assertEqual(update_floating_ip['fixed_ip_address'],
                          list_ips[1])
diff --git a/tempest/api/network/test_fwaas_extensions.py b/tempest/api/network/test_fwaas_extensions.py
index 0c36820..8104567 100644
--- a/tempest/api/network/test_fwaas_extensions.py
+++ b/tempest/api/network/test_fwaas_extensions.py
@@ -88,7 +88,7 @@
         target_states = ('ACTIVE', 'CREATED')
 
         def _wait():
-            _, firewall = self.client.show_firewall(fw_id)
+            firewall = self.client.show_firewall(fw_id)
             firewall = firewall['firewall']
             return firewall['status'] in target_states
 
@@ -100,7 +100,7 @@
 
     def test_list_firewall_rules(self):
         # List firewall rules
-        _, fw_rules = self.client.list_firewall_rules()
+        fw_rules = self.client.list_firewall_rules()
         fw_rules = fw_rules['firewall_rules']
         self.assertIn((self.fw_rule['id'],
                        self.fw_rule['name'],
@@ -117,32 +117,32 @@
 
     def test_create_update_delete_firewall_rule(self):
         # Create firewall rule
-        _, body = self.client.create_firewall_rule(
+        body = self.client.create_firewall_rule(
             name=data_utils.rand_name("fw-rule"),
             action="allow",
             protocol="tcp")
         fw_rule_id = body['firewall_rule']['id']
 
         # Update firewall rule
-        _, body = self.client.update_firewall_rule(fw_rule_id,
-                                                   shared=True)
+        body = self.client.update_firewall_rule(fw_rule_id,
+                                                shared=True)
         self.assertTrue(body["firewall_rule"]['shared'])
 
         # Delete firewall rule
         self.client.delete_firewall_rule(fw_rule_id)
         # Confirm deletion
-        resp, fw_rules = self.client.list_firewall_rules()
+        fw_rules = self.client.list_firewall_rules()
         self.assertNotIn(fw_rule_id,
                          [m['id'] for m in fw_rules['firewall_rules']])
 
     def test_show_firewall_rule(self):
         # show a created firewall rule
-        _, fw_rule = self.client.show_firewall_rule(self.fw_rule['id'])
+        fw_rule = self.client.show_firewall_rule(self.fw_rule['id'])
         for key, value in fw_rule['firewall_rule'].iteritems():
             self.assertEqual(self.fw_rule[key], value)
 
     def test_list_firewall_policies(self):
-        _, fw_policies = self.client.list_firewall_policies()
+        fw_policies = self.client.list_firewall_policies()
         fw_policies = fw_policies['firewall_policies']
         self.assertIn((self.fw_policy['id'],
                        self.fw_policy['name'],
@@ -153,15 +153,15 @@
 
     def test_create_update_delete_firewall_policy(self):
         # Create firewall policy
-        _, body = self.client.create_firewall_policy(
+        body = self.client.create_firewall_policy(
             name=data_utils.rand_name("fw-policy"))
         fw_policy_id = body['firewall_policy']['id']
         self.addCleanup(self._try_delete_policy, fw_policy_id)
 
         # Update firewall policy
-        _, body = self.client.update_firewall_policy(fw_policy_id,
-                                                     shared=True,
-                                                     name="updated_policy")
+        body = self.client.update_firewall_policy(fw_policy_id,
+                                                  shared=True,
+                                                  name="updated_policy")
         updated_fw_policy = body["firewall_policy"]
         self.assertTrue(updated_fw_policy['shared'])
         self.assertEqual("updated_policy", updated_fw_policy['name'])
@@ -169,13 +169,13 @@
         # Delete firewall policy
         self.client.delete_firewall_policy(fw_policy_id)
         # Confirm deletion
-        resp, fw_policies = self.client.list_firewall_policies()
+        fw_policies = self.client.list_firewall_policies()
         fw_policies = fw_policies['firewall_policies']
         self.assertNotIn(fw_policy_id, [m['id'] for m in fw_policies])
 
     def test_show_firewall_policy(self):
         # show a created firewall policy
-        _, fw_policy = self.client.show_firewall_policy(self.fw_policy['id'])
+        fw_policy = self.client.show_firewall_policy(self.fw_policy['id'])
         fw_policy = fw_policy['firewall_policy']
         for key, value in fw_policy.iteritems():
             self.assertEqual(self.fw_policy[key], value)
@@ -191,7 +191,7 @@
             router['id'], subnet['id'])
 
         # Create firewall
-        _, body = self.client.create_firewall(
+        body = self.client.create_firewall(
             name=data_utils.rand_name("firewall"),
             firewall_policy_id=self.fw_policy['id'])
         created_firewall = body['firewall']
@@ -202,7 +202,7 @@
         self._wait_until_ready(firewall_id)
 
         # show a created firewall
-        _, firewall = self.client.show_firewall(firewall_id)
+        firewall = self.client.show_firewall(firewall_id)
         firewall = firewall['firewall']
 
         for key, value in firewall.iteritems():
@@ -211,7 +211,7 @@
             self.assertEqual(created_firewall[key], value)
 
         # list firewall
-        _, firewalls = self.client.list_firewalls()
+        firewalls = self.client.list_firewalls()
         firewalls = firewalls['firewalls']
         self.assertIn((created_firewall['id'],
                        created_firewall['name'],
@@ -226,14 +226,14 @@
     @test.attr(type='smoke')
     def test_firewall_rule_insertion_position_removal_rule_from_policy(self):
         # Create firewall rule
-        resp, body = self.client.create_firewall_rule(
+        body = self.client.create_firewall_rule(
             name=data_utils.rand_name("fw-rule"),
             action="allow",
             protocol="tcp")
         fw_rule_id1 = body['firewall_rule']['id']
         self.addCleanup(self._try_delete_rule, fw_rule_id1)
         # Create firewall policy
-        _, body = self.client.create_firewall_policy(
+        body = self.client.create_firewall_policy(
             name=data_utils.rand_name("fw-policy"))
         fw_policy_id = body['firewall_policy']['id']
         self.addCleanup(self._try_delete_policy, fw_policy_id)
@@ -245,7 +245,7 @@
         # Verify insertion of rule in policy
         self.assertIn(fw_rule_id1, self._get_list_fw_rule_ids(fw_policy_id))
         # Create another firewall rule
-        _, body = self.client.create_firewall_rule(
+        body = self.client.create_firewall_rule(
             name=data_utils.rand_name("fw-rule"),
             action="allow",
             protocol="icmp")
@@ -257,7 +257,7 @@
             fw_policy_id, fw_rule_id2, fw_rule_id1, '')
 
         # Verify the posiition of rule after insertion
-        _, fw_rule = self.client.show_firewall_rule(
+        fw_rule = self.client.show_firewall_rule(
             fw_rule_id2)
 
         self.assertEqual(int(fw_rule['firewall_rule']['position']), 2)
@@ -268,7 +268,7 @@
         self.client.insert_firewall_rule_in_policy(
             fw_policy_id, fw_rule_id2, '', fw_rule_id1)
         # Verify the posiition of rule after insertion
-        _, fw_rule = self.client.show_firewall_rule(
+        fw_rule = self.client.show_firewall_rule(
             fw_rule_id2)
         self.assertEqual(int(fw_rule['firewall_rule']['position']), 1)
         # Remove rule from the firewall policy
@@ -285,21 +285,21 @@
         self.assertNotIn(fw_rule_id1, self._get_list_fw_rule_ids(fw_policy_id))
 
     def _get_list_fw_rule_ids(self, fw_policy_id):
-        _, fw_policy = self.client.show_firewall_policy(
+        fw_policy = self.client.show_firewall_policy(
             fw_policy_id)
         return [ruleid for ruleid in fw_policy['firewall_policy']
                 ['firewall_rules']]
 
     def test_update_firewall_policy_audited_attribute(self):
         # Create firewall rule
-        _, body = self.client.create_firewall_rule(
+        body = self.client.create_firewall_rule(
             name=data_utils.rand_name("fw-rule"),
             action="allow",
             protocol="icmp")
         fw_rule_id = body['firewall_rule']['id']
         self.addCleanup(self._try_delete_rule, fw_rule_id)
         # Create firewall policy
-        _, body = self.client.create_firewall_policy(
+        body = self.client.create_firewall_policy(
             name=data_utils.rand_name('fw-policy'))
         fw_policy_id = body['firewall_policy']['id']
         self.addCleanup(self._try_delete_policy, fw_policy_id)
@@ -310,6 +310,6 @@
         # Insert Firewall rule to firewall policy
         self.client.insert_firewall_rule_in_policy(
             fw_policy_id, fw_rule_id, '', '')
-        _, body = self.client.show_firewall_policy(
+        body = self.client.show_firewall_policy(
             fw_policy_id)
         self.assertFalse(body['firewall_policy']['audited'])
diff --git a/tempest/api/network/test_load_balancer.py b/tempest/api/network/test_load_balancer.py
index 41294f6..289da7e 100644
--- a/tempest/api/network/test_load_balancer.py
+++ b/tempest/api/network/test_load_balancer.py
@@ -68,31 +68,31 @@
         delete_obj = getattr(self.client, 'delete_' + obj_name)
         list_objs = getattr(self.client, 'list_' + obj_name + 's')
 
-        _, body = create_obj(**kwargs)
+        body = create_obj(**kwargs)
         obj = body[obj_name]
         self.addCleanup(delete_obj, obj['id'])
         for key, value in obj.iteritems():
             # It is not relevant to filter by all arguments. That is why
             # there is a list of attr to except
             if key not in attr_exceptions:
-                _, body = list_objs(**{key: value})
+                body = list_objs(**{key: value})
                 objs = [v[key] for v in body[obj_name + 's']]
                 self.assertIn(value, objs)
 
     @test.attr(type='smoke')
     def test_list_vips(self):
         # Verify the vIP exists in the list of all vIPs
-        _, body = self.client.list_vips()
+        body = self.client.list_vips()
         vips = body['vips']
         self.assertIn(self.vip['id'], [v['id'] for v in vips])
 
     @test.attr(type='smoke')
     def test_list_vips_with_filter(self):
         name = data_utils.rand_name('vip-')
-        _, body = self.client.create_pool(name=data_utils.rand_name("pool-"),
-                                          lb_method="ROUND_ROBIN",
-                                          protocol="HTTPS",
-                                          subnet_id=self.subnet['id'])
+        body = self.client.create_pool(name=data_utils.rand_name("pool-"),
+                                       lb_method="ROUND_ROBIN",
+                                       protocol="HTTPS",
+                                       subnet_id=self.subnet['id'])
         pool = body['pool']
         self.addCleanup(self.client.delete_pool, pool['id'])
         attr_exceptions = ['status', 'session_persistence',
@@ -108,22 +108,22 @@
         # Creates a vip
         name = data_utils.rand_name('vip-')
         address = self.subnet['allocation_pools'][0]['end']
-        resp, body = self.client.create_pool(
+        body = self.client.create_pool(
             name=data_utils.rand_name("pool-"),
             lb_method='ROUND_ROBIN',
             protocol='HTTP',
             subnet_id=self.subnet['id'])
         pool = body['pool']
-        _, body = self.client.create_vip(name=name,
-                                         protocol="HTTP",
-                                         protocol_port=80,
-                                         subnet_id=self.subnet['id'],
-                                         pool_id=pool['id'],
-                                         address=address)
+        body = self.client.create_vip(name=name,
+                                      protocol="HTTP",
+                                      protocol_port=80,
+                                      subnet_id=self.subnet['id'],
+                                      pool_id=pool['id'],
+                                      address=address)
         vip = body['vip']
         vip_id = vip['id']
         # Confirm VIP's address correctness with a show
-        _, body = self.client.show_vip(vip_id)
+        body = self.client.show_vip(vip_id)
         vip = body['vip']
         self.assertEqual(address, vip['address'])
         # Verification of vip update
@@ -132,12 +132,12 @@
         persistence_type = "HTTP_COOKIE"
         update_data = {"session_persistence": {
             "type": persistence_type}}
-        _, body = self.client.update_vip(vip_id,
-                                         name=new_name,
-                                         description=new_description,
-                                         connection_limit=10,
-                                         admin_state_up=False,
-                                         **update_data)
+        body = self.client.update_vip(vip_id,
+                                      name=new_name,
+                                      description=new_description,
+                                      connection_limit=10,
+                                      admin_state_up=False,
+                                      **update_data)
         updated_vip = body['vip']
         self.assertEqual(new_name, updated_vip['name'])
         self.assertEqual(new_description, updated_vip['description'])
@@ -149,10 +149,10 @@
         self.client.wait_for_resource_deletion('vip', vip['id'])
         # Verification of pool update
         new_name = "New_pool"
-        _, body = self.client.update_pool(pool['id'],
-                                          name=new_name,
-                                          description="new_description",
-                                          lb_method='LEAST_CONNECTIONS')
+        body = self.client.update_pool(pool['id'],
+                                       name=new_name,
+                                       description="new_description",
+                                       lb_method='LEAST_CONNECTIONS')
         updated_pool = body['pool']
         self.assertEqual(new_name, updated_pool['name'])
         self.assertEqual('new_description', updated_pool['description'])
@@ -162,7 +162,7 @@
     @test.attr(type='smoke')
     def test_show_vip(self):
         # Verifies the details of a vip
-        _, body = self.client.show_vip(self.vip['id'])
+        body = self.client.show_vip(self.vip['id'])
         vip = body['vip']
         for key, value in vip.iteritems():
             # 'status' should not be confirmed in api tests
@@ -172,14 +172,14 @@
     @test.attr(type='smoke')
     def test_show_pool(self):
         # Here we need to new pool without any dependence with vips
-        _, body = self.client.create_pool(name=data_utils.rand_name("pool-"),
-                                          lb_method='ROUND_ROBIN',
-                                          protocol='HTTP',
-                                          subnet_id=self.subnet['id'])
+        body = self.client.create_pool(name=data_utils.rand_name("pool-"),
+                                       lb_method='ROUND_ROBIN',
+                                       protocol='HTTP',
+                                       subnet_id=self.subnet['id'])
         pool = body['pool']
         self.addCleanup(self.client.delete_pool, pool['id'])
         # Verifies the details of a pool
-        _, body = self.client.show_pool(pool['id'])
+        body = self.client.show_pool(pool['id'])
         shown_pool = body['pool']
         for key, value in pool.iteritems():
             # 'status' should not be confirmed in api tests
@@ -189,7 +189,7 @@
     @test.attr(type='smoke')
     def test_list_pools(self):
         # Verify the pool exists in the list of all pools
-        _, body = self.client.list_pools()
+        body = self.client.list_pools()
         pools = body['pools']
         self.assertIn(self.pool['id'], [p['id'] for p in pools])
 
@@ -207,7 +207,7 @@
     @test.attr(type='smoke')
     def test_list_members(self):
         # Verify the member exists in the list of all members
-        _, body = self.client.list_members()
+        body = self.client.list_members()
         members = body['members']
         self.assertIn(self.member['id'], [m['id'] for m in members])
 
@@ -222,13 +222,13 @@
     @test.attr(type='smoke')
     def test_create_update_delete_member(self):
         # Creates a member
-        _, body = self.client.create_member(address=self.member_address,
-                                            protocol_port=80,
-                                            pool_id=self.pool['id'])
+        body = self.client.create_member(address=self.member_address,
+                                         protocol_port=80,
+                                         pool_id=self.pool['id'])
         member = body['member']
         # Verification of member update
-        _, body = self.client.update_member(member['id'],
-                                            admin_state_up=False)
+        body = self.client.update_member(member['id'],
+                                         admin_state_up=False)
         updated_member = body['member']
         self.assertFalse(updated_member['admin_state_up'])
         # Verification of member delete
@@ -237,7 +237,7 @@
     @test.attr(type='smoke')
     def test_show_member(self):
         # Verifies the details of a member
-        _, body = self.client.show_member(self.member['id'])
+        body = self.client.show_member(self.member['id'])
         member = body['member']
         for key, value in member.iteritems():
             # 'status' should not be confirmed in api tests
@@ -247,7 +247,7 @@
     @test.attr(type='smoke')
     def test_list_health_monitors(self):
         # Verify the health monitor exists in the list of all health monitors
-        _, body = self.client.list_health_monitors()
+        body = self.client.list_health_monitors()
         health_monitors = body['health_monitors']
         self.assertIn(self.health_monitor['id'],
                       [h['id'] for h in health_monitors])
@@ -262,27 +262,27 @@
     @test.attr(type='smoke')
     def test_create_update_delete_health_monitor(self):
         # Creates a health_monitor
-        _, body = self.client.create_health_monitor(delay=4,
-                                                    max_retries=3,
-                                                    type="TCP",
-                                                    timeout=1)
+        body = self.client.create_health_monitor(delay=4,
+                                                 max_retries=3,
+                                                 type="TCP",
+                                                 timeout=1)
         health_monitor = body['health_monitor']
         # Verification of health_monitor update
-        _, body = (self.client.update_health_monitor
-                   (health_monitor['id'],
-                    admin_state_up=False))
+        body = (self.client.update_health_monitor
+                (health_monitor['id'],
+                 admin_state_up=False))
         updated_health_monitor = body['health_monitor']
         self.assertFalse(updated_health_monitor['admin_state_up'])
         # Verification of health_monitor delete
-        _, body = self.client.delete_health_monitor(health_monitor['id'])
+        body = self.client.delete_health_monitor(health_monitor['id'])
 
     @test.attr(type='smoke')
     def test_create_health_monitor_http_type(self):
         hm_type = "HTTP"
-        _, body = self.client.create_health_monitor(delay=4,
-                                                    max_retries=3,
-                                                    type=hm_type,
-                                                    timeout=1)
+        body = self.client.create_health_monitor(delay=4,
+                                                 max_retries=3,
+                                                 type=hm_type,
+                                                 timeout=1)
         health_monitor = body['health_monitor']
         self.addCleanup(self.client.delete_health_monitor,
                         health_monitor['id'])
@@ -290,18 +290,18 @@
 
     @test.attr(type='smoke')
     def test_update_health_monitor_http_method(self):
-        _, body = self.client.create_health_monitor(delay=4,
-                                                    max_retries=3,
-                                                    type="HTTP",
-                                                    timeout=1)
+        body = self.client.create_health_monitor(delay=4,
+                                                 max_retries=3,
+                                                 type="HTTP",
+                                                 timeout=1)
         health_monitor = body['health_monitor']
         self.addCleanup(self.client.delete_health_monitor,
                         health_monitor['id'])
-        _, body = (self.client.update_health_monitor
-                   (health_monitor['id'],
-                    http_method="POST",
-                    url_path="/home/user",
-                    expected_codes="290"))
+        body = (self.client.update_health_monitor
+                (health_monitor['id'],
+                 http_method="POST",
+                 url_path="/home/user",
+                 expected_codes="290"))
         updated_health_monitor = body['health_monitor']
         self.assertEqual("POST", updated_health_monitor['http_method'])
         self.assertEqual("/home/user", updated_health_monitor['url_path'])
@@ -310,7 +310,7 @@
     @test.attr(type='smoke')
     def test_show_health_monitor(self):
         # Verifies the details of a health_monitor
-        _, body = self.client.show_health_monitor(self.health_monitor['id'])
+        body = self.client.show_health_monitor(self.health_monitor['id'])
         health_monitor = body['health_monitor']
         for key, value in health_monitor.iteritems():
             # 'status' should not be confirmed in api tests
@@ -320,12 +320,12 @@
     @test.attr(type='smoke')
     def test_associate_disassociate_health_monitor_with_pool(self):
         # Verify that a health monitor can be associated with a pool
-        _, body = (self.client.associate_health_monitor_with_pool
-                   (self.health_monitor['id'], self.pool['id']))
-        resp, body = self.client.show_health_monitor(
+        self.client.associate_health_monitor_with_pool(
+            self.health_monitor['id'], self.pool['id'])
+        body = self.client.show_health_monitor(
             self.health_monitor['id'])
         health_monitor = body['health_monitor']
-        resp, body = self.client.show_pool(self.pool['id'])
+        body = self.client.show_pool(self.pool['id'])
         pool = body['pool']
         self.assertIn(pool['id'],
                       [p['pool_id'] for p in health_monitor['pools']])
@@ -333,9 +333,9 @@
         # Verify that a health monitor can be disassociated from a pool
         (self.client.disassociate_health_monitor_with_pool
             (self.health_monitor['id'], self.pool['id']))
-        _, body = self.client.show_pool(self.pool['id'])
+        body = self.client.show_pool(self.pool['id'])
         pool = body['pool']
-        resp, body = self.client.show_health_monitor(
+        body = self.client.show_health_monitor(
             self.health_monitor['id'])
         health_monitor = body['health_monitor']
         self.assertNotIn(health_monitor['id'], pool['health_monitors'])
@@ -345,7 +345,7 @@
     @test.attr(type='smoke')
     def test_get_lb_pool_stats(self):
         # Verify the details of pool stats
-        _, body = self.client.list_lb_pool_stats(self.pool['id'])
+        body = self.client.list_lb_pool_stats(self.pool['id'])
         stats = body['stats']
         self.assertIn("bytes_in", stats)
         self.assertIn("total_connections", stats)
@@ -358,10 +358,10 @@
             (self.health_monitor['id'], self.pool['id']))
         self.client.update_health_monitor(
             self.health_monitor['id'], admin_state_up=False)
-        _, body = self.client.show_pool(self.pool['id'])
+        body = self.client.show_pool(self.pool['id'])
         health_monitors = body['pool']['health_monitors']
         for health_monitor_id in health_monitors:
-            _, body = self.client.show_health_monitor(health_monitor_id)
+            body = self.client.show_health_monitor(health_monitor_id)
             self.assertFalse(body['health_monitor']['admin_state_up'])
             (self.client.disassociate_health_monitor_with_pool
                 (self.health_monitor['id'], self.pool['id']))
@@ -370,25 +370,25 @@
     def test_update_admin_state_up_of_pool(self):
         self.client.update_pool(self.pool['id'],
                                 admin_state_up=False)
-        _, body = self.client.show_pool(self.pool['id'])
+        body = self.client.show_pool(self.pool['id'])
         pool = body['pool']
         self.assertFalse(pool['admin_state_up'])
 
     @test.attr(type='smoke')
     def test_show_vip_associated_with_pool(self):
-        _, body = self.client.show_pool(self.pool['id'])
+        body = self.client.show_pool(self.pool['id'])
         pool = body['pool']
-        _, body = self.client.show_vip(pool['vip_id'])
+        body = self.client.show_vip(pool['vip_id'])
         vip = body['vip']
         self.assertEqual(self.vip['name'], vip['name'])
         self.assertEqual(self.vip['id'], vip['id'])
 
     @test.attr(type='smoke')
     def test_show_members_associated_with_pool(self):
-        _, body = self.client.show_pool(self.pool['id'])
+        body = self.client.show_pool(self.pool['id'])
         members = body['pool']['members']
         for member_id in members:
-            _, body = self.client.show_member(member_id)
+            body = self.client.show_member(member_id)
             self.assertIsNotNone(body['member']['status'])
             self.assertEqual(member_id, body['member']['id'])
             self.assertIsNotNone(body['member']['admin_state_up'])
@@ -396,28 +396,28 @@
     @test.attr(type='smoke')
     def test_update_pool_related_to_member(self):
         # Create new pool
-        _, body = self.client.create_pool(name=data_utils.rand_name("pool-"),
-                                          lb_method='ROUND_ROBIN',
-                                          protocol='HTTP',
-                                          subnet_id=self.subnet['id'])
+        body = self.client.create_pool(name=data_utils.rand_name("pool-"),
+                                       lb_method='ROUND_ROBIN',
+                                       protocol='HTTP',
+                                       subnet_id=self.subnet['id'])
         new_pool = body['pool']
         self.addCleanup(self.client.delete_pool, new_pool['id'])
         # Update member with new pool's id
-        _, body = self.client.update_member(self.member['id'],
-                                            pool_id=new_pool['id'])
+        body = self.client.update_member(self.member['id'],
+                                         pool_id=new_pool['id'])
         # Confirm with show that pool_id change
-        resp, body = self.client.show_member(self.member['id'])
+        body = self.client.show_member(self.member['id'])
         member = body['member']
         self.assertEqual(member['pool_id'], new_pool['id'])
         # Update member with old pool id, this is needed for clean up
-        _, body = self.client.update_member(self.member['id'],
-                                            pool_id=self.pool['id'])
+        body = self.client.update_member(self.member['id'],
+                                         pool_id=self.pool['id'])
 
     @test.attr(type='smoke')
     def test_update_member_weight(self):
         self.client.update_member(self.member['id'],
                                   weight=2)
-        _, body = self.client.show_member(self.member['id'])
+        body = self.client.show_member(self.member['id'])
         member = body['member']
         self.assertEqual(2, member['weight'])
 
diff --git a/tempest/api/network/test_metering_extensions.py b/tempest/api/network/test_metering_extensions.py
index daf9948..6ba1ea4 100644
--- a/tempest/api/network/test_metering_extensions.py
+++ b/tempest/api/network/test_metering_extensions.py
@@ -23,7 +23,7 @@
 LOG = logging.getLogger(__name__)
 
 
-class MeteringJSON(base.BaseAdminNetworkTest):
+class MeteringTestJSON(base.BaseAdminNetworkTest):
     _interface = 'json'
 
     """
@@ -36,7 +36,7 @@
 
     @classmethod
     def resource_setup(cls):
-        super(MeteringJSON, cls).resource_setup()
+        super(MeteringTestJSON, cls).resource_setup()
         if not test.is_extension_enabled('metering', 'network'):
             msg = "metering extension not enabled."
             raise cls.skipException(msg)
@@ -52,25 +52,24 @@
 
     def _delete_metering_label(self, metering_label_id):
         # Deletes a label and verifies if it is deleted or not
-        _, body = self.admin_client.delete_metering_label(metering_label_id)
+        self.admin_client.delete_metering_label(metering_label_id)
         # Asserting that the label is not found in list after deletion
-        resp, labels = (self.admin_client.list_metering_labels(
-                        id=metering_label_id))
+        labels = self.admin_client.list_metering_labels(id=metering_label_id)
         self.assertEqual(len(labels['metering_labels']), 0)
 
     def _delete_metering_label_rule(self, metering_label_rule_id):
         # Deletes a rule and verifies if it is deleted or not
-        _, body = (self.admin_client.delete_metering_label_rule(
-                   metering_label_rule_id))
+        self.admin_client.delete_metering_label_rule(
+            metering_label_rule_id)
         # Asserting that the rule is not found in list after deletion
-        resp, rules = (self.admin_client.list_metering_label_rules(
-                       id=metering_label_rule_id))
+        rules = (self.admin_client.list_metering_label_rules(
+                 id=metering_label_rule_id))
         self.assertEqual(len(rules['metering_label_rules']), 0)
 
     @test.attr(type='smoke')
     def test_list_metering_labels(self):
         # Verify label filtering
-        _, body = self.admin_client.list_metering_labels(id=33)
+        body = self.admin_client.list_metering_labels(id=33)
         metering_labels = body['metering_labels']
         self.assertEqual(0, len(metering_labels))
 
@@ -79,22 +78,21 @@
         # Creates a label
         name = data_utils.rand_name('metering-label-')
         description = "label created by tempest"
-        _, body = (self.admin_client.create_metering_label(name=name,
-                   description=description))
+        body = self.admin_client.create_metering_label(name=name,
+                                                       description=description)
         metering_label = body['metering_label']
         self.addCleanup(self._delete_metering_label,
                         metering_label['id'])
         # Assert whether created labels are found in labels list or fail
         # if created labels are not found in labels list
-        resp, labels = (self.admin_client.list_metering_labels(
-                        id=metering_label['id']))
+        labels = (self.admin_client.list_metering_labels(
+                  id=metering_label['id']))
         self.assertEqual(len(labels['metering_labels']), 1)
 
     @test.attr(type='smoke')
     def test_show_metering_label(self):
         # Verifies the details of a label
-        _, body = (self.admin_client.show_metering_label(
-                   self.metering_label['id']))
+        body = self.admin_client.show_metering_label(self.metering_label['id'])
         metering_label = body['metering_label']
         self.assertEqual(self.metering_label['id'], metering_label['id'])
         self.assertEqual(self.metering_label['tenant_id'],
@@ -106,7 +104,7 @@
     @test.attr(type='smoke')
     def test_list_metering_label_rules(self):
         # Verify rule filtering
-        _, body = self.admin_client.list_metering_label_rules(id=33)
+        body = self.admin_client.list_metering_label_rules(id=33)
         metering_label_rules = body['metering_label_rules']
         self.assertEqual(0, len(metering_label_rules))
 
@@ -115,24 +113,24 @@
         # Creates a rule
         remote_ip_prefix = ("10.0.1.0/24" if self._ip_version == 4
                             else "fd03::/64")
-        _, body = (self.admin_client.create_metering_label_rule(
-                   remote_ip_prefix=remote_ip_prefix,
-                   direction="ingress",
-                   metering_label_id=self.metering_label['id']))
+        body = (self.admin_client.create_metering_label_rule(
+                remote_ip_prefix=remote_ip_prefix,
+                direction="ingress",
+                metering_label_id=self.metering_label['id']))
         metering_label_rule = body['metering_label_rule']
         self.addCleanup(self._delete_metering_label_rule,
                         metering_label_rule['id'])
         # Assert whether created rules are found in rules list or fail
         # if created rules are not found in rules list
-        resp, rules = (self.admin_client.list_metering_label_rules(
-                       id=metering_label_rule['id']))
+        rules = (self.admin_client.list_metering_label_rules(
+                 id=metering_label_rule['id']))
         self.assertEqual(len(rules['metering_label_rules']), 1)
 
     @test.attr(type='smoke')
     def test_show_metering_label_rule(self):
         # Verifies the details of a rule
-        _, body = (self.admin_client.show_metering_label_rule(
-                   self.metering_label_rule['id']))
+        body = (self.admin_client.show_metering_label_rule(
+                self.metering_label_rule['id']))
         metering_label_rule = body['metering_label_rule']
         self.assertEqual(self.metering_label_rule['id'],
                          metering_label_rule['id'])
@@ -145,5 +143,5 @@
         self.assertFalse(metering_label_rule['excluded'])
 
 
-class MeteringIpV6JSON(MeteringJSON):
+class MeteringIpV6TestJSON(MeteringTestJSON):
     _ip_version = 6
diff --git a/tempest/api/network/test_networks.py b/tempest/api/network/test_networks.py
index ccc489e..1f827da 100644
--- a/tempest/api/network/test_networks.py
+++ b/tempest/api/network/test_networks.py
@@ -160,7 +160,7 @@
         self.assertEqual('ACTIVE', network['status'])
         # Verify network update
         new_name = "New_network"
-        _, body = self.client.update_network(net_id, name=new_name)
+        body = self.client.update_network(net_id, name=new_name)
         updated_net = body['network']
         self.assertEqual(updated_net['name'], new_name)
         # Find a cidr that is not in use yet and create a subnet with it
@@ -168,14 +168,14 @@
         subnet_id = subnet['id']
         # Verify subnet update
         new_name = "New_subnet"
-        _, body = self.client.update_subnet(subnet_id, name=new_name)
+        body = self.client.update_subnet(subnet_id, name=new_name)
         updated_subnet = body['subnet']
         self.assertEqual(updated_subnet['name'], new_name)
 
     @test.attr(type='smoke')
     def test_show_network(self):
         # Verify the details of a network
-        _, body = self.client.show_network(self.network['id'])
+        body = self.client.show_network(self.network['id'])
         network = body['network']
         for key in ['id', 'name']:
             self.assertEqual(network[key], self.network[key])
@@ -184,8 +184,8 @@
     def test_show_network_fields(self):
         # Verify specific fields of a network
         fields = ['id', 'name']
-        _, body = self.client.show_network(self.network['id'],
-                                           fields=fields)
+        body = self.client.show_network(self.network['id'],
+                                        fields=fields)
         network = body['network']
         self.assertEqual(sorted(network.keys()), sorted(fields))
         for field_name in fields:
@@ -194,7 +194,7 @@
     @test.attr(type='smoke')
     def test_list_networks(self):
         # Verify the network exists in the list of all networks
-        _, body = self.client.list_networks()
+        body = self.client.list_networks()
         networks = [network['id'] for network in body['networks']
                     if network['id'] == self.network['id']]
         self.assertNotEmpty(networks, "Created network not found in the list")
@@ -203,7 +203,7 @@
     def test_list_networks_fields(self):
         # Verify specific fields of the networks
         fields = ['id', 'name']
-        _, body = self.client.list_networks(fields=fields)
+        body = self.client.list_networks(fields=fields)
         networks = body['networks']
         self.assertNotEmpty(networks, "Network list returned is empty")
         for network in networks:
@@ -212,7 +212,7 @@
     @test.attr(type='smoke')
     def test_show_subnet(self):
         # Verify the details of a subnet
-        _, body = self.client.show_subnet(self.subnet['id'])
+        body = self.client.show_subnet(self.subnet['id'])
         subnet = body['subnet']
         self.assertNotEmpty(subnet, "Subnet returned has no fields")
         for key in ['id', 'cidr']:
@@ -223,8 +223,8 @@
     def test_show_subnet_fields(self):
         # Verify specific fields of a subnet
         fields = ['id', 'network_id']
-        _, body = self.client.show_subnet(self.subnet['id'],
-                                          fields=fields)
+        body = self.client.show_subnet(self.subnet['id'],
+                                       fields=fields)
         subnet = body['subnet']
         self.assertEqual(sorted(subnet.keys()), sorted(fields))
         for field_name in fields:
@@ -233,7 +233,7 @@
     @test.attr(type='smoke')
     def test_list_subnets(self):
         # Verify the subnet exists in the list of all subnets
-        _, body = self.client.list_subnets()
+        body = self.client.list_subnets()
         subnets = [subnet['id'] for subnet in body['subnets']
                    if subnet['id'] == self.subnet['id']]
         self.assertNotEmpty(subnets, "Created subnet not found in the list")
@@ -242,7 +242,7 @@
     def test_list_subnets_fields(self):
         # Verify specific fields of subnets
         fields = ['id', 'network_id']
-        _, body = self.client.list_subnets(fields=fields)
+        body = self.client.list_subnets(fields=fields)
         subnets = body['subnets']
         self.assertNotEmpty(subnets, "Subnet list returned is empty")
         for subnet in subnets:
@@ -260,7 +260,7 @@
     def test_delete_network_with_subnet(self):
         # Creates a network
         name = data_utils.rand_name('network-')
-        _, body = self.client.create_network(name=name)
+        body = self.client.create_network(name=name)
         network = body['network']
         net_id = network['id']
         self.addCleanup(self._try_delete_network, net_id)
@@ -270,7 +270,7 @@
         subnet_id = subnet['id']
 
         # Delete network while the subnet still exists
-        _, body = self.client.delete_network(net_id)
+        body = self.client.delete_network(net_id)
 
         # Verify that the subnet got automatically deleted.
         self.assertRaises(exceptions.NotFound, self.client.show_subnet,
@@ -331,8 +331,8 @@
                   'gateway_ip': new_gateway, 'enable_dhcp': True}
 
         new_name = "New_subnet"
-        _, body = self.client.update_subnet(subnet_id, name=new_name,
-                                            **kwargs)
+        body = self.client.update_subnet(subnet_id, name=new_name,
+                                         **kwargs)
         updated_subnet = body['subnet']
         kwargs['name'] = new_name
         self.assertEqual(sorted(updated_subnet['dns_nameservers']),
@@ -350,7 +350,7 @@
     @test.attr(type='smoke')
     def test_external_network_visibility(self):
         """Verifies user can see external networks but not subnets."""
-        _, body = self.client.list_networks(**{'router:external': True})
+        body = self.client.list_networks(**{'router:external': True})
         networks = [network['id'] for network in body['networks']]
         self.assertNotEmpty(networks, "No external networks found")
 
@@ -364,7 +364,7 @@
         # subnets_iter is a list (iterator) of lists. This flattens it to a
         # list of UUIDs
         public_subnets_iter = itertools.chain(*subnets_iter)
-        _, body = self.client.list_subnets()
+        body = self.client.list_subnets()
         subnets = [sub['id'] for sub in body['subnets']
                    if sub['id'] in public_subnets_iter]
         self.assertEmpty(subnets, "Public subnets visible")
@@ -396,7 +396,7 @@
         for n in created_networks:
             self.client.delete_network(n['id'])
         # Asserting that the networks are not found in the list after deletion
-        resp, body = self.client.list_networks()
+        body = self.client.list_networks()
         networks_list = [network['id'] for network in body['networks']]
         for n in created_networks:
             self.assertNotIn(n['id'], networks_list)
@@ -405,7 +405,7 @@
         for n in created_subnets:
             self.client.delete_subnet(n['id'])
         # Asserting that the subnets are not found in the list after deletion
-        resp, body = self.client.list_subnets()
+        body = self.client.list_subnets()
         subnets_list = [subnet['id'] for subnet in body['subnets']]
         for n in created_subnets:
             self.assertNotIn(n['id'], subnets_list)
@@ -414,7 +414,7 @@
         for n in created_ports:
             self.client.delete_port(n['id'])
         # Asserting that the ports are not found in the list after deletion
-        resp, body = self.client.list_ports()
+        body = self.client.list_ports()
         ports_list = [port['id'] for port in body['ports']]
         for n in created_ports:
             self.assertNotIn(n['id'], ports_list)
@@ -424,11 +424,11 @@
         # Creates 2 networks in one request
         network_names = [data_utils.rand_name('network-'),
                          data_utils.rand_name('network-')]
-        _, body = self.client.create_bulk_network(network_names)
+        body = self.client.create_bulk_network(network_names)
         created_networks = body['networks']
         self.addCleanup(self._delete_networks, created_networks)
         # Asserting that the networks are found in the list after creation
-        resp, body = self.client.list_networks()
+        body = self.client.list_networks()
         networks_list = [network['id'] for network in body['networks']]
         for n in created_networks:
             self.assertIsNotNone(n['id'])
@@ -455,11 +455,11 @@
             }
             subnets_list.append(p1)
         del subnets_list[1]['name']
-        _, body = self.client.create_bulk_subnet(subnets_list)
+        body = self.client.create_bulk_subnet(subnets_list)
         created_subnets = body['subnets']
         self.addCleanup(self._delete_subnets, created_subnets)
         # Asserting that the subnets are found in the list after creation
-        resp, body = self.client.list_subnets()
+        body = self.client.list_subnets()
         subnets_list = [subnet['id'] for subnet in body['subnets']]
         for n in created_subnets:
             self.assertIsNotNone(n['id'])
@@ -480,11 +480,11 @@
             }
             port_list.append(p1)
         del port_list[1]['name']
-        _, body = self.client.create_bulk_port(port_list)
+        body = self.client.create_bulk_port(port_list)
         created_ports = body['ports']
         self.addCleanup(self._delete_ports, created_ports)
         # Asserting that the ports are found in the list after creation
-        resp, body = self.client.list_ports()
+        body = self.client.list_ports()
         ports_list = [port['id'] for port in body['ports']]
         for n in created_ports:
             self.assertIsNotNone(n['id'])
@@ -534,7 +534,7 @@
         # Verifies Subnet GW is None in IPv4
         self.assertEqual(subnet2['gateway_ip'], None)
         # Verifies all 2 subnets in the same network
-        _, body = self.client.list_subnets()
+        body = self.client.list_subnets()
         subnets = [sub['id'] for sub in body['subnets']
                    if sub['network_id'] == network['id']]
         test_subnet_ids = [sub['id'] for sub in (subnet1, subnet2)]
diff --git a/tempest/api/network/test_ports.py b/tempest/api/network/test_ports.py
index 9cd5e2e..80097db 100644
--- a/tempest/api/network/test_ports.py
+++ b/tempest/api/network/test_ports.py
@@ -45,23 +45,23 @@
 
     def _delete_port(self, port_id):
         self.client.delete_port(port_id)
-        _, body = self.client.list_ports()
+        body = self.client.list_ports()
         ports_list = body['ports']
         self.assertFalse(port_id in [n['id'] for n in ports_list])
 
     @test.attr(type='smoke')
     def test_create_update_delete_port(self):
         # Verify port creation
-        _, body = self.client.create_port(network_id=self.network['id'])
+        body = self.client.create_port(network_id=self.network['id'])
         port = body['port']
         # Schedule port deletion with verification upon test completion
         self.addCleanup(self._delete_port, port['id'])
         self.assertTrue(port['admin_state_up'])
         # Verify port update
         new_name = "New_Port"
-        _, body = self.client.update_port(port['id'],
-                                          name=new_name,
-                                          admin_state_up=False)
+        body = self.client.update_port(port['id'],
+                                       name=new_name,
+                                       admin_state_up=False)
         updated_port = body['port']
         self.assertEqual(updated_port['name'], new_name)
         self.assertFalse(updated_port['admin_state_up'])
@@ -72,7 +72,7 @@
         network2 = self.create_network(network_name=name)
         network_list = [network1['id'], network2['id']]
         port_list = [{'network_id': net_id} for net_id in network_list]
-        _, body = self.client.create_bulk_port(port_list)
+        body = self.client.create_bulk_port(port_list)
         created_ports = body['ports']
         port1 = created_ports[0]
         port2 = created_ports[1]
@@ -86,7 +86,7 @@
     @test.attr(type='smoke')
     def test_show_port(self):
         # Verify the details of port
-        _, body = self.client.show_port(self.port['id'])
+        body = self.client.show_port(self.port['id'])
         port = body['port']
         self.assertIn('id', port)
         # TODO(Santosh)- This is a temporary workaround to compare create_port
@@ -100,8 +100,8 @@
     def test_show_port_fields(self):
         # Verify specific fields of a port
         fields = ['id', 'mac_address']
-        _, body = self.client.show_port(self.port['id'],
-                                        fields=fields)
+        body = self.client.show_port(self.port['id'],
+                                     fields=fields)
         port = body['port']
         self.assertEqual(sorted(port.keys()), sorted(fields))
         for field_name in fields:
@@ -110,7 +110,7 @@
     @test.attr(type='smoke')
     def test_list_ports(self):
         # Verify the port exists in the list of all ports
-        _, body = self.client.list_ports()
+        body = self.client.list_ports()
         ports = [port['id'] for port in body['ports']
                  if port['id'] == self.port['id']]
         self.assertNotEmpty(ports, "Created port not found in the list")
@@ -121,14 +121,14 @@
         network = self.create_network()
         self.create_subnet(network)
         router = self.create_router(data_utils.rand_name('router-'))
-        resp, port = self.client.create_port(network_id=network['id'])
+        port = self.client.create_port(network_id=network['id'])
         # Add router interface to port created above
-        resp, interface = self.client.add_router_interface_with_port_id(
+        self.client.add_router_interface_with_port_id(
             router['id'], port['port']['id'])
         self.addCleanup(self.client.remove_router_interface_with_port_id,
                         router['id'], port['port']['id'])
         # List ports filtered by router_id
-        _, port_list = self.client.list_ports(device_id=router['id'])
+        port_list = self.client.list_ports(device_id=router['id'])
         ports = port_list['ports']
         self.assertEqual(len(ports), 1)
         self.assertEqual(ports[0]['id'], port['port']['id'])
@@ -138,7 +138,7 @@
     def test_list_ports_fields(self):
         # Verify specific fields of ports
         fields = ['id', 'mac_address']
-        _, body = self.client.list_ports(fields=fields)
+        body = self.client.list_ports(fields=fields)
         ports = body['ports']
         self.assertNotEmpty(ports, "Port list returned is empty")
         # Asserting the fields returned are correct
@@ -173,20 +173,19 @@
         self.create_subnet(self.network)
         security_groups_list = list()
         for name in security_groups_names:
-            _, group_create_body = self.client.create_security_group(
+            group_create_body = self.client.create_security_group(
                 name=name)
             self.addCleanup(self.client.delete_security_group,
                             group_create_body['security_group']['id'])
             security_groups_list.append(group_create_body['security_group']
                                         ['id'])
         # Create a port
-        _, body = self.client.create_port(**post_body)
+        body = self.client.create_port(**post_body)
         self.addCleanup(self.client.delete_port, body['port']['id'])
         port = body['port']
         # Update the port with security groups
         update_body = {"security_groups": security_groups_list}
-        _, body = self.client.update_port(
-            port['id'], **update_body)
+        body = self.client.update_port(port['id'], **update_body)
         # Verify the security groups updated to port
         port_show = body['port']
         for security_group in security_groups_list:
@@ -206,20 +205,36 @@
     @test.attr(type='smoke')
     def test_create_show_delete_port_user_defined_mac(self):
         # Create a port for a legal mac
-        _, body = self.client.create_port(network_id=self.network['id'])
+        body = self.client.create_port(network_id=self.network['id'])
         old_port = body['port']
         free_mac_address = old_port['mac_address']
         self.client.delete_port(old_port['id'])
         # Create a new port with user defined mac
-        _, body = self.client.create_port(network_id=self.network['id'],
-                                          mac_address=free_mac_address)
+        body = self.client.create_port(network_id=self.network['id'],
+                                       mac_address=free_mac_address)
         self.addCleanup(self.client.delete_port, body['port']['id'])
         port = body['port']
-        _, body = self.client.show_port(port['id'])
+        body = self.client.show_port(port['id'])
         show_port = body['port']
         self.assertEqual(free_mac_address,
                          show_port['mac_address'])
 
+    @test.attr(type='smoke')
+    def test_create_port_with_no_securitygroups(self):
+        port = self.create_port(self.create_network(), security_groups=[])
+        self.assertIsNotNone(port['security_groups'])
+        self.assertEmpty(port['security_groups'])
+
+    @test.attr(type='smoke')
+    def test_update_port_with_no_securitygroups(self):
+        port = self.create_port(self.create_network())
+        # Verify that port is created with default security group
+        self.assertIsNotNone(port['security_groups'])
+        self.assertNotEmpty(port['security_groups'])
+        updated_port = self.update_port(port, security_groups=[])
+        self.assertIsNotNone(updated_port['security_groups'])
+        self.assertEmpty(updated_port['security_groups'])
+
 
 class PortsAdminExtendedAttrsTestJSON(base.BaseAdminNetworkTest):
     _interface = 'json'
@@ -237,7 +252,7 @@
     def test_create_port_binding_ext_attr(self):
         post_body = {"network_id": self.network['id'],
                      "binding:host_id": self.host_id}
-        _, body = self.admin_client.create_port(**post_body)
+        body = self.admin_client.create_port(**post_body)
         port = body['port']
         self.addCleanup(self.admin_client.delete_port, port['id'])
         host_id = port['binding:host_id']
@@ -247,11 +262,11 @@
     @test.attr(type='smoke')
     def test_update_port_binding_ext_attr(self):
         post_body = {"network_id": self.network['id']}
-        _, body = self.admin_client.create_port(**post_body)
+        body = self.admin_client.create_port(**post_body)
         port = body['port']
         self.addCleanup(self.admin_client.delete_port, port['id'])
         update_body = {"binding:host_id": self.host_id}
-        _, body = self.admin_client.update_port(port['id'], **update_body)
+        body = self.admin_client.update_port(port['id'], **update_body)
         updated_port = body['port']
         host_id = updated_port['binding:host_id']
         self.assertIsNotNone(host_id)
@@ -261,7 +276,7 @@
     def test_list_ports_binding_ext_attr(self):
         # Create a new port
         post_body = {"network_id": self.network['id']}
-        _, body = self.admin_client.create_port(**post_body)
+        body = self.admin_client.create_port(**post_body)
         port = body['port']
         self.addCleanup(self.admin_client.delete_port, port['id'])
 
@@ -272,7 +287,7 @@
 
         # List all ports, ensure new port is part of list and its binding
         # attributes are set and accurate
-        _, body = self.admin_client.list_ports()
+        body = self.admin_client.list_ports()
         ports_list = body['ports']
         pids_list = [p['id'] for p in ports_list]
         self.assertIn(port['id'], pids_list)
@@ -284,10 +299,10 @@
 
     @test.attr(type='smoke')
     def test_show_port_binding_ext_attr(self):
-        _, body = self.admin_client.create_port(network_id=self.network['id'])
+        body = self.admin_client.create_port(network_id=self.network['id'])
         port = body['port']
         self.addCleanup(self.admin_client.delete_port, port['id'])
-        _, body = self.admin_client.show_port(port['id'])
+        body = self.admin_client.show_port(port['id'])
         show_port = body['port']
         self.assertEqual(port['binding:host_id'],
                          show_port['binding:host_id'])
diff --git a/tempest/api/network/test_routers.py b/tempest/api/network/test_routers.py
index 34650c5..5e8a851 100644
--- a/tempest/api/network/test_routers.py
+++ b/tempest/api/network/test_routers.py
@@ -57,7 +57,7 @@
         # NOTE(salv-orlando): Do not invoke self.create_router
         # as we need to check the response code
         name = data_utils.rand_name('router-')
-        _, create_body = self.client.create_router(
+        create_body = self.client.create_router(
             name, external_gateway_info={
                 "network_id": CONF.network.public_network_id},
             admin_state_up=False)
@@ -68,24 +68,24 @@
             CONF.network.public_network_id)
         self.assertEqual(create_body['router']['admin_state_up'], False)
         # Show details of the created router
-        _, show_body = self.client.show_router(create_body['router']['id'])
+        show_body = self.client.show_router(create_body['router']['id'])
         self.assertEqual(show_body['router']['name'], name)
         self.assertEqual(
             show_body['router']['external_gateway_info']['network_id'],
             CONF.network.public_network_id)
         self.assertEqual(show_body['router']['admin_state_up'], False)
         # List routers and verify if created router is there in response
-        _, list_body = self.client.list_routers()
+        list_body = self.client.list_routers()
         routers_list = list()
         for router in list_body['routers']:
             routers_list.append(router['id'])
         self.assertIn(create_body['router']['id'], routers_list)
         # Update the name of router and verify if it is updated
         updated_name = 'updated ' + name
-        _, update_body = self.client.update_router(create_body['router']['id'],
-                                                   name=updated_name)
+        update_body = self.client.update_router(create_body['router']['id'],
+                                                name=updated_name)
         self.assertEqual(update_body['router']['name'], updated_name)
-        resp, show_body = self.client.show_router(
+        show_body = self.client.show_router(
             create_body['router']['id'])
         self.assertEqual(show_body['router']['name'], updated_name)
 
@@ -100,8 +100,8 @@
         self.addCleanup(self.identity_admin_client.delete_tenant, tenant_id)
 
         name = data_utils.rand_name('router-')
-        _, create_body = self.admin_client.create_router(name,
-                                                         tenant_id=tenant_id)
+        create_body = self.admin_client.create_router(name,
+                                                      tenant_id=tenant_id)
         self.addCleanup(self.admin_client.delete_router,
                         create_body['router']['id'])
         self.assertEqual(tenant_id, create_body['router']['tenant_id'])
@@ -127,7 +127,7 @@
             external_gateway_info = {
                 'network_id': CONF.network.public_network_id,
                 'enable_snat': enable_snat}
-            _, create_body = self.admin_client.create_router(
+            create_body = self.admin_client.create_router(
                 name, external_gateway_info=external_gateway_info)
             self.addCleanup(self.admin_client.delete_router,
                             create_body['router']['id'])
@@ -141,14 +141,14 @@
         subnet = self.create_subnet(network)
         router = self._create_router(data_utils.rand_name('router-'))
         # Add router interface with subnet id
-        _, interface = self.client.add_router_interface_with_subnet_id(
+        interface = self.client.add_router_interface_with_subnet_id(
             router['id'], subnet['id'])
         self.addCleanup(self._remove_router_interface_with_subnet_id,
                         router['id'], subnet['id'])
         self.assertIn('subnet_id', interface.keys())
         self.assertIn('port_id', interface.keys())
         # Verify router id is equal to device id in port details
-        resp, show_port_body = self.client.show_port(
+        show_port_body = self.client.show_port(
             interface['port_id'])
         self.assertEqual(show_port_body['port']['device_id'],
                          router['id'])
@@ -158,23 +158,23 @@
         network = self.create_network()
         self.create_subnet(network)
         router = self._create_router(data_utils.rand_name('router-'))
-        resp, port_body = self.client.create_port(
+        port_body = self.client.create_port(
             network_id=network['id'])
         # add router interface to port created above
-        _, interface = self.client.add_router_interface_with_port_id(
+        interface = self.client.add_router_interface_with_port_id(
             router['id'], port_body['port']['id'])
         self.addCleanup(self._remove_router_interface_with_port_id,
                         router['id'], port_body['port']['id'])
         self.assertIn('subnet_id', interface.keys())
         self.assertIn('port_id', interface.keys())
         # Verify router id is equal to device id in port details
-        resp, show_port_body = self.client.show_port(
+        show_port_body = self.client.show_port(
             interface['port_id'])
         self.assertEqual(show_port_body['port']['device_id'],
                          router['id'])
 
     def _verify_router_gateway(self, router_id, exp_ext_gw_info=None):
-        _, show_body = self.admin_client.show_router(router_id)
+        show_body = self.admin_client.show_router(router_id)
         actual_ext_gw_info = show_body['router']['external_gateway_info']
         if exp_ext_gw_info is None:
             self.assertIsNone(actual_ext_gw_info)
@@ -184,14 +184,14 @@
             self.assertEqual(v, actual_ext_gw_info[k])
 
     def _verify_gateway_port(self, router_id):
-        resp, list_body = self.admin_client.list_ports(
+        list_body = self.admin_client.list_ports(
             network_id=CONF.network.public_network_id,
             device_id=router_id)
         self.assertEqual(len(list_body['ports']), 1)
         gw_port = list_body['ports'][0]
         fixed_ips = gw_port['fixed_ips']
         self.assertGreaterEqual(len(fixed_ips), 1)
-        resp, public_net_body = self.admin_client.show_network(
+        public_net_body = self.admin_client.show_network(
             CONF.network.public_network_id)
         public_subnet_id = public_net_body['network']['subnets'][0]
         self.assertIn(public_subnet_id,
@@ -205,7 +205,6 @@
             external_gateway_info={
                 'network_id': CONF.network.public_network_id})
         # Verify operation - router
-        _, show_body = self.client.show_router(router['id'])
         self._verify_router_gateway(
             router['id'],
             {'network_id': CONF.network.public_network_id})
@@ -249,7 +248,7 @@
         self.client.update_router(router['id'], external_gateway_info={})
         self._verify_router_gateway(router['id'])
         # No gateway port expected
-        resp, list_body = self.admin_client.list_ports(
+        list_body = self.admin_client.list_ports(
             network_id=CONF.network.public_network_id,
             device_id=router['id'])
         self.assertFalse(list_body['ports'])
@@ -289,31 +288,31 @@
         cidr = netaddr.IPNetwork(self.subnet['cidr'])
         next_hop = str(cidr[2])
         destination = str(self.subnet['cidr'])
-        _, extra_route = self.client.update_extra_routes(self.router['id'],
-                                                         next_hop, destination)
+        extra_route = self.client.update_extra_routes(self.router['id'],
+                                                      next_hop, destination)
         self.assertEqual(1, len(extra_route['router']['routes']))
         self.assertEqual(destination,
                          extra_route['router']['routes'][0]['destination'])
         self.assertEqual(next_hop,
                          extra_route['router']['routes'][0]['nexthop'])
-        _, show_body = self.client.show_router(self.router['id'])
+        show_body = self.client.show_router(self.router['id'])
         self.assertEqual(destination,
                          show_body['router']['routes'][0]['destination'])
         self.assertEqual(next_hop,
                          show_body['router']['routes'][0]['nexthop'])
 
     def _delete_extra_routes(self, router_id):
-        resp, _ = self.client.delete_extra_routes(router_id)
+        self.client.delete_extra_routes(router_id)
 
     @test.attr(type='smoke')
     def test_update_router_admin_state(self):
         self.router = self._create_router(data_utils.rand_name('router-'))
         self.assertFalse(self.router['admin_state_up'])
         # Update router admin state
-        _, update_body = self.client.update_router(self.router['id'],
-                                                   admin_state_up=True)
+        update_body = self.client.update_router(self.router['id'],
+                                                admin_state_up=True)
         self.assertTrue(update_body['router']['admin_state_up'])
-        _, show_body = self.client.show_router(self.router['id'])
+        show_body = self.client.show_router(self.router['id'])
         self.assertTrue(show_body['router']['admin_state_up'])
 
     @test.attr(type='smoke')
@@ -336,7 +335,7 @@
                                       interface02['port_id'])
 
     def _verify_router_interface(self, router_id, subnet_id, port_id):
-        _, show_port_body = self.client.show_port(port_id)
+        show_port_body = self.client.show_port(port_id)
         interface_port = show_port_body['port']
         self.assertEqual(router_id, interface_port['device_id'])
         self.assertEqual(subnet_id,
diff --git a/tempest/api/network/test_security_groups.py b/tempest/api/network/test_security_groups.py
index b995b1d..415dedd 100644
--- a/tempest/api/network/test_security_groups.py
+++ b/tempest/api/network/test_security_groups.py
@@ -42,7 +42,7 @@
                                            remote_ip_prefix=None):
         # Create Security Group rule with the input params and validate
         # that SG rule is created with the same parameters.
-        resp, rule_create_body = self.client.create_security_group_rule(
+        rule_create_body = self.client.create_security_group_rule(
             security_group_id=sg_id,
             direction=direction,
             ethertype=ethertype,
@@ -71,7 +71,7 @@
     @test.attr(type='smoke')
     def test_list_security_groups(self):
         # Verify the that security group belonging to tenant exist in list
-        _, body = self.client.list_security_groups()
+        body = self.client.list_security_groups()
         security_groups = body['security_groups']
         found = None
         for n in security_groups:
@@ -85,7 +85,7 @@
         group_create_body, name = self._create_security_group()
 
         # List security groups and verify if created group is there in response
-        _, list_body = self.client.list_security_groups()
+        list_body = self.client.list_security_groups()
         secgroup_list = list()
         for secgroup in list_body['security_groups']:
             secgroup_list.append(secgroup['id'])
@@ -93,7 +93,7 @@
         # Update the security group
         new_name = data_utils.rand_name('security-')
         new_description = data_utils.rand_name('security-description')
-        _, update_body = self.client.update_security_group(
+        update_body = self.client.update_security_group(
             group_create_body['security_group']['id'],
             name=new_name,
             description=new_description)
@@ -102,7 +102,7 @@
         self.assertEqual(update_body['security_group']['description'],
                          new_description)
         # Show details of the updated security group
-        resp, show_body = self.client.show_security_group(
+        show_body = self.client.show_security_group(
             group_create_body['security_group']['id'])
         self.assertEqual(show_body['security_group']['name'], new_name)
         self.assertEqual(show_body['security_group']['description'],
@@ -115,7 +115,7 @@
         # Create rules for each protocol
         protocols = ['tcp', 'udp', 'icmp']
         for protocol in protocols:
-            _, rule_create_body = self.client.create_security_group_rule(
+            rule_create_body = self.client.create_security_group_rule(
                 security_group_id=group_create_body['security_group']['id'],
                 protocol=protocol,
                 direction='ingress',
@@ -123,7 +123,7 @@
             )
 
             # Show details of the created security rule
-            _, show_rule_body = self.client.show_security_group_rule(
+            show_rule_body = self.client.show_security_group_rule(
                 rule_create_body['security_group_rule']['id']
             )
             create_dict = rule_create_body['security_group_rule']
@@ -133,7 +133,7 @@
                                  "%s does not match." % key)
 
             # List rules and verify created rule is in response
-            _, rule_list_body = self.client.list_security_group_rules()
+            rule_list_body = self.client.list_security_group_rules()
             rule_list = [rule['id']
                          for rule in rule_list_body['security_group_rules']]
             self.assertIn(rule_create_body['security_group_rule']['id'],
@@ -221,7 +221,7 @@
         direction = 'ingress'
         protocol = 17
         security_group_id = group_create_body['security_group']['id']
-        _, rule_create_body = self.client.create_security_group_rule(
+        rule_create_body = self.client.create_security_group_rule(
             security_group_id=security_group_id,
             direction=direction,
             protocol=protocol
diff --git a/tempest/api/network/test_security_groups_negative.py b/tempest/api/network/test_security_groups_negative.py
index b9e8666..fa1f6ee 100644
--- a/tempest/api/network/test_security_groups_negative.py
+++ b/tempest/api/network/test_security_groups_negative.py
@@ -164,7 +164,7 @@
         min_port = 66
         max_port = 67
         # Create a rule with valid params
-        resp, _ = self.client.create_security_group_rule(
+        self.client.create_security_group_rule(
             security_group_id=body['security_group']['id'],
             direction='ingress',
             ethertype=self.ethertype,
diff --git a/tempest/api/network/test_service_type_management.py b/tempest/api/network/test_service_type_management.py
index 7f8b479..447c3f3 100644
--- a/tempest/api/network/test_service_type_management.py
+++ b/tempest/api/network/test_service_type_management.py
@@ -27,5 +27,5 @@
     @test.skip_because(bug="1400370")
     @test.attr(type='smoke')
     def test_service_provider_list(self):
-        _, body = self.client.list_service_providers()
+        body = self.client.list_service_providers()
         self.assertIsInstance(body['service_providers'], list)
diff --git a/tempest/api/network/test_vpnaas_extensions.py b/tempest/api/network/test_vpnaas_extensions.py
index 46f10c4..56e1a05 100644
--- a/tempest/api/network/test_vpnaas_extensions.py
+++ b/tempest/api/network/test_vpnaas_extensions.py
@@ -57,13 +57,13 @@
     def _delete_ike_policy(self, ike_policy_id):
         # Deletes a ike policy and verifies if it is deleted or not
         ike_list = list()
-        resp, all_ike = self.client.list_ikepolicies()
+        all_ike = self.client.list_ikepolicies()
         for ike in all_ike['ikepolicies']:
             ike_list.append(ike['id'])
         if ike_policy_id in ike_list:
             self.client.delete_ikepolicy(ike_policy_id)
             # Asserting that the policy is not found in list after deletion
-            resp, ikepolicies = self.client.list_ikepolicies()
+            ikepolicies = self.client.list_ikepolicies()
             ike_id_list = list()
             for i in ikepolicies['ikepolicies']:
                 ike_id_list.append(i['id'])
@@ -86,7 +86,7 @@
     def _delete_vpn_service(self, vpn_service_id):
         self.client.delete_vpnservice(vpn_service_id)
         # Asserting if vpn service is found in the list after deletion
-        _, body = self.client.list_vpnservices()
+        body = self.client.list_vpnservices()
         vpn_services = [vs['id'] for vs in body['vpnservices']]
         self.assertNotIn(vpn_service_id, vpn_services)
 
@@ -97,7 +97,7 @@
         # TODO(jroovers) This is a temporary workaround to get the tenant_id
         # of the the current client. Replace this once tenant_isolation for
         # neutron is fixed.
-        _, body = self.client.show_network(self.network['id'])
+        body = self.client.show_network(self.network['id'])
         return body['network']['tenant_id']
 
     @test.attr(type='smoke')
@@ -105,15 +105,15 @@
         tenant_id = self._get_tenant_id()
         # Create IPSec policy for the newly created tenant
         name = data_utils.rand_name('ipsec-policy')
-        _, body = (self.admin_client.
-                   create_ipsecpolicy(name=name, tenant_id=tenant_id))
+        body = (self.admin_client.
+                create_ipsecpolicy(name=name, tenant_id=tenant_id))
         ipsecpolicy = body['ipsecpolicy']
         self.assertIsNotNone(ipsecpolicy['id'])
         self.addCleanup(self.admin_client.delete_ipsecpolicy,
                         ipsecpolicy['id'])
 
         # Assert that created ipsec policy is found in API list call
-        _, body = self.client.list_ipsecpolicies()
+        body = self.client.list_ipsecpolicies()
         ipsecpolicies = [policy['id'] for policy in body['ipsecpolicies']]
         self.assertIn(ipsecpolicy['id'], ipsecpolicies)
 
@@ -128,7 +128,7 @@
                                      external_network_id=self.ext_net_id)
         self.create_router_interface(router2['id'], subnet2['id'])
         name = data_utils.rand_name('vpn-service')
-        _, body = self.admin_client.create_vpnservice(
+        body = self.admin_client.create_vpnservice(
             subnet_id=subnet2['id'],
             router_id=router2['id'],
             name=name,
@@ -138,7 +138,7 @@
         self.assertIsNotNone(vpnservice['id'])
         self.addCleanup(self.admin_client.delete_vpnservice, vpnservice['id'])
         # Assert that created vpnservice is found in API list call
-        _, body = self.client.list_vpnservices()
+        body = self.client.list_vpnservices()
         vpn_services = [vs['id'] for vs in body['vpnservices']]
         self.assertIn(vpnservice['id'], vpn_services)
 
@@ -148,24 +148,24 @@
 
         # Create IKE policy for the newly created tenant
         name = data_utils.rand_name('ike-policy')
-        _, body = (self.admin_client.
-                   create_ikepolicy(name=name, ike_version="v1",
-                                    encryption_algorithm="aes-128",
-                                    auth_algorithm="sha1",
-                                    tenant_id=tenant_id))
+        body = (self.admin_client.
+                create_ikepolicy(name=name, ike_version="v1",
+                                 encryption_algorithm="aes-128",
+                                 auth_algorithm="sha1",
+                                 tenant_id=tenant_id))
         ikepolicy = body['ikepolicy']
         self.assertIsNotNone(ikepolicy['id'])
         self.addCleanup(self.admin_client.delete_ikepolicy, ikepolicy['id'])
 
         # Assert that created ike policy is found in API list call
-        _, body = self.client.list_ikepolicies()
+        body = self.client.list_ikepolicies()
         ikepolicies = [ikp['id'] for ikp in body['ikepolicies']]
         self.assertIn(ikepolicy['id'], ikepolicies)
 
     @test.attr(type='smoke')
     def test_list_vpn_services(self):
         # Verify the VPN service exists in the list of all VPN services
-        _, body = self.client.list_vpnservices()
+        body = self.client.list_vpnservices()
         vpnservices = body['vpnservices']
         self.assertIn(self.vpnservice['id'], [v['id'] for v in vpnservices])
 
@@ -178,14 +178,14 @@
                                      external_network_id=self.ext_net_id)
         self.create_router_interface(router1['id'], subnet1['id'])
         name = data_utils.rand_name('vpn-service1')
-        _, body = self.client.create_vpnservice(subnet_id=subnet1['id'],
-                                                router_id=router1['id'],
-                                                name=name,
-                                                admin_state_up=True)
+        body = self.client.create_vpnservice(subnet_id=subnet1['id'],
+                                             router_id=router1['id'],
+                                             name=name,
+                                             admin_state_up=True)
         vpnservice = body['vpnservice']
         self.addCleanup(self._delete_vpn_service, vpnservice['id'])
         # Assert if created vpnservices are not found in vpnservices list
-        resp, body = self.client.list_vpnservices()
+        body = self.client.list_vpnservices()
         vpn_services = [vs['id'] for vs in body['vpnservices']]
         self.assertIsNotNone(vpnservice['id'])
         self.assertIn(vpnservice['id'], vpn_services)
@@ -198,7 +198,7 @@
     @test.attr(type='smoke')
     def test_show_vpn_service(self):
         # Verifies the details of a vpn service
-        _, body = self.client.show_vpnservice(self.vpnservice['id'])
+        body = self.client.show_vpnservice(self.vpnservice['id'])
         vpnservice = body['vpnservice']
         self.assertEqual(self.vpnservice['id'], vpnservice['id'])
         self.assertEqual(self.vpnservice['name'], vpnservice['name'])
@@ -214,7 +214,7 @@
     @test.attr(type='smoke')
     def test_list_ike_policies(self):
         # Verify the ike policy exists in the list of all IKE policies
-        _, body = self.client.list_ikepolicies()
+        body = self.client.list_ikepolicies()
         ikepolicies = body['ikepolicies']
         self.assertIn(self.ikepolicy['id'], [i['id'] for i in ikepolicies])
 
@@ -222,11 +222,11 @@
     def test_create_update_delete_ike_policy(self):
         # Creates a IKE policy
         name = data_utils.rand_name('ike-policy')
-        _, body = (self.client.create_ikepolicy(
-                   name=name,
-                   ike_version="v1",
-                   encryption_algorithm="aes-128",
-                   auth_algorithm="sha1"))
+        body = (self.client.create_ikepolicy(
+                name=name,
+                ike_version="v1",
+                encryption_algorithm="aes-128",
+                auth_algorithm="sha1"))
         ikepolicy = body['ikepolicy']
         self.assertIsNotNone(ikepolicy['id'])
         self.addCleanup(self._delete_ike_policy, ikepolicy['id'])
@@ -240,7 +240,7 @@
                    'lifetime': {'units': "seconds", 'value': 2000}}
         self.client.update_ikepolicy(ikepolicy['id'], **new_ike)
         # Confirm that update was successful by verifying using 'show'
-        _, body = self.client.show_ikepolicy(ikepolicy['id'])
+        body = self.client.show_ikepolicy(ikepolicy['id'])
         ike_policy = body['ikepolicy']
         for key, value in new_ike.iteritems():
             self.assertIn(key, ike_policy)
@@ -248,14 +248,14 @@
 
         # Verification of ike policy delete
         self.client.delete_ikepolicy(ikepolicy['id'])
-        _, body = self.client.list_ikepolicies()
+        body = self.client.list_ikepolicies()
         ikepolicies = [ikp['id'] for ikp in body['ikepolicies']]
         self.assertNotIn(ike_policy['id'], ikepolicies)
 
     @test.attr(type='smoke')
     def test_show_ike_policy(self):
         # Verifies the details of a ike policy
-        _, body = self.client.show_ikepolicy(self.ikepolicy['id'])
+        body = self.client.show_ikepolicy(self.ikepolicy['id'])
         ikepolicy = body['ikepolicy']
         self.assertEqual(self.ikepolicy['id'], ikepolicy['id'])
         self.assertEqual(self.ikepolicy['name'], ikepolicy['name'])
@@ -277,7 +277,7 @@
     @test.attr(type='smoke')
     def test_list_ipsec_policies(self):
         # Verify the ipsec policy exists in the list of all ipsec policies
-        _, body = self.client.list_ipsecpolicies()
+        body = self.client.list_ipsecpolicies()
         ipsecpolicies = body['ipsecpolicies']
         self.assertIn(self.ipsecpolicy['id'], [i['id'] for i in ipsecpolicies])
 
@@ -288,7 +288,7 @@
                              'pfs': 'group5',
                              'encryption_algorithm': "aes-128",
                              'auth_algorithm': 'sha1'}
-        _, resp_body = self.client.create_ipsecpolicy(**ipsec_policy_body)
+        resp_body = self.client.create_ipsecpolicy(**ipsec_policy_body)
         ipsecpolicy = resp_body['ipsecpolicy']
         self.addCleanup(self._delete_ipsec_policy, ipsecpolicy['id'])
         self._assertExpected(ipsec_policy_body, ipsecpolicy)
@@ -298,8 +298,8 @@
                      'name': data_utils.rand_name("New-IPSec"),
                      'encryption_algorithm': "aes-256",
                      'lifetime': {'units': "seconds", 'value': '2000'}}
-        _, body = self.client.update_ipsecpolicy(ipsecpolicy['id'],
-                                                 **new_ipsec)
+        body = self.client.update_ipsecpolicy(ipsecpolicy['id'],
+                                              **new_ipsec)
         updated_ipsec_policy = body['ipsecpolicy']
         self._assertExpected(new_ipsec, updated_ipsec_policy)
         # Verification of ipsec policy delete
@@ -310,6 +310,6 @@
     @test.attr(type='smoke')
     def test_show_ipsec_policy(self):
         # Verifies the details of an ipsec policy
-        _, body = self.client.show_ipsecpolicy(self.ipsecpolicy['id'])
+        body = self.client.show_ipsecpolicy(self.ipsecpolicy['id'])
         ipsecpolicy = body['ipsecpolicy']
         self._assertExpected(self.ipsecpolicy, ipsecpolicy)
diff --git a/tempest/api/orchestration/base.py b/tempest/api/orchestration/base.py
index 5a586fc..6896362 100644
--- a/tempest/api/orchestration/base.py
+++ b/tempest/api/orchestration/base.py
@@ -51,7 +51,7 @@
 
     @classmethod
     def _get_default_network(cls):
-        _, networks = cls.network_client.list_networks()
+        networks = cls.network_client.list_networks()
         for net in networks['networks']:
             if net['name'] == CONF.compute.fixed_network_name:
                 return net
diff --git a/tempest/api/orchestration/stacks/test_neutron_resources.py b/tempest/api/orchestration/stacks/test_neutron_resources.py
index f1a4f85..8352719 100644
--- a/tempest/api/orchestration/stacks/test_neutron_resources.py
+++ b/tempest/api/orchestration/stacks/test_neutron_resources.py
@@ -107,7 +107,7 @@
     def test_created_network(self):
         """Verifies created network."""
         network_id = self.test_resources.get('Network')['physical_resource_id']
-        _, body = self.network_client.show_network(network_id)
+        body = self.network_client.show_network(network_id)
         network = body['network']
         self.assertIsInstance(network, dict)
         self.assertEqual(network_id, network['id'])
@@ -119,7 +119,7 @@
     def test_created_subnet(self):
         """Verifies created subnet."""
         subnet_id = self.test_resources.get('Subnet')['physical_resource_id']
-        _, body = self.network_client.show_subnet(subnet_id)
+        body = self.network_client.show_subnet(subnet_id)
         subnet = body['subnet']
         network_id = self.test_resources.get('Network')['physical_resource_id']
         self.assertEqual(subnet_id, subnet['id'])
@@ -137,7 +137,7 @@
     def test_created_router(self):
         """Verifies created router."""
         router_id = self.test_resources.get('Router')['physical_resource_id']
-        _, body = self.network_client.show_router(router_id)
+        body = self.network_client.show_router(router_id)
         router = body['router']
         self.assertEqual(self.neutron_basic_template['resources'][
             'Router']['properties']['name'], router['name'])
@@ -152,7 +152,7 @@
         router_id = self.test_resources.get('Router')['physical_resource_id']
         network_id = self.test_resources.get('Network')['physical_resource_id']
         subnet_id = self.test_resources.get('Subnet')['physical_resource_id']
-        _, body = self.network_client.list_ports()
+        body = self.network_client.list_ports()
         ports = body['ports']
         router_ports = filter(lambda port: port['device_id'] ==
                               router_id, ports)
diff --git a/tempest/cmd/cleanup_service.py b/tempest/cmd/cleanup_service.py
index 67843e6..db862c7 100644
--- a/tempest/cmd/cleanup_service.py
+++ b/tempest/cmd/cleanup_service.py
@@ -85,7 +85,7 @@
     net_cl = am.network_client
     id_cl = am.identity_client
 
-    _, networks = net_cl.list_networks()
+    networks = net_cl.list_networks()
     tenant = id_cl.get_tenant_by_name(tenant_name)
     t_id = tenant['id']
     n_id = None
@@ -357,7 +357,7 @@
 
     def list(self):
         client = self.client
-        _, networks = client.list_networks()
+        networks = client.list_networks()
         networks = self._filter_by_tenant_id(networks['networks'])
         # filter out networks declared in tempest.conf
         if self.is_preserve:
@@ -385,7 +385,7 @@
 
     def list(self):
         client = self.client
-        _, ipsecpols = client.list_ipsecpolicies()
+        ipsecpols = client.list_ipsecpolicies()
         ipsecpols = ipsecpols['ipsecpolicies']
         ipsecpols = self._filter_by_tenant_id(ipsecpols)
         LOG.debug("List count, %s IP Security Policies" % len(ipsecpols))
@@ -410,7 +410,7 @@
 
     def list(self):
         client = self.client
-        _, fwpols = client.list_firewall_policies()
+        fwpols = client.list_firewall_policies()
         fwpols = fwpols['firewall_policies']
         fwpols = self._filter_by_tenant_id(fwpols)
         LOG.debug("List count, %s Firewall Policies" % len(fwpols))
@@ -435,7 +435,7 @@
 
     def list(self):
         client = self.client
-        _, fwrules = client.list_firewall_rules()
+        fwrules = client.list_firewall_rules()
         fwrules = fwrules['firewall_rules']
         fwrules = self._filter_by_tenant_id(fwrules)
         LOG.debug("List count, %s Firewall Rules" % len(fwrules))
@@ -460,7 +460,7 @@
 
     def list(self):
         client = self.client
-        _, ikepols = client.list_ikepolicies()
+        ikepols = client.list_ikepolicies()
         ikepols = ikepols['ikepolicies']
         ikepols = self._filter_by_tenant_id(ikepols)
         LOG.debug("List count, %s IKE Policies" % len(ikepols))
@@ -485,7 +485,7 @@
 
     def list(self):
         client = self.client
-        _, vpnsrvs = client.list_vpnservices()
+        vpnsrvs = client.list_vpnservices()
         vpnsrvs = vpnsrvs['vpnservices']
         vpnsrvs = self._filter_by_tenant_id(vpnsrvs)
         LOG.debug("List count, %s VPN Services" % len(vpnsrvs))
@@ -510,7 +510,7 @@
 
     def list(self):
         client = self.client
-        _, flips = client.list_floatingips()
+        flips = client.list_floatingips()
         flips = flips['floatingips']
         flips = self._filter_by_tenant_id(flips)
         LOG.debug("List count, %s Network Floating IPs" % len(flips))
@@ -535,7 +535,7 @@
 
     def list(self):
         client = self.client
-        _, routers = client.list_routers()
+        routers = client.list_routers()
         routers = routers['routers']
         routers = self._filter_by_tenant_id(routers)
         if self.is_preserve:
@@ -551,7 +551,7 @@
         for router in routers:
             try:
                 rid = router['id']
-                _, ports = client.list_router_interfaces(rid)
+                ports = client.list_router_interfaces(rid)
                 ports = ports['ports']
                 for port in ports:
                     subid = port['fixed_ips'][0]['subnet_id']
@@ -570,7 +570,7 @@
 
     def list(self):
         client = self.client
-        _, hms = client.list_health_monitors()
+        hms = client.list_health_monitors()
         hms = hms['health_monitors']
         hms = self._filter_by_tenant_id(hms)
         LOG.debug("List count, %s Health Monitors" % len(hms))
@@ -595,7 +595,7 @@
 
     def list(self):
         client = self.client
-        _, members = client.list_members()
+        members = client.list_members()
         members = members['members']
         members = self._filter_by_tenant_id(members)
         LOG.debug("List count, %s Members" % len(members))
@@ -620,7 +620,7 @@
 
     def list(self):
         client = self.client
-        _, vips = client.list_vips()
+        vips = client.list_vips()
         vips = vips['vips']
         vips = self._filter_by_tenant_id(vips)
         LOG.debug("List count, %s VIPs" % len(vips))
@@ -645,7 +645,7 @@
 
     def list(self):
         client = self.client
-        _, pools = client.list_pools()
+        pools = client.list_pools()
         pools = pools['pools']
         pools = self._filter_by_tenant_id(pools)
         LOG.debug("List count, %s Pools" % len(pools))
@@ -670,7 +670,7 @@
 
     def list(self):
         client = self.client
-        _, rules = client.list_metering_label_rules()
+        rules = client.list_metering_label_rules()
         rules = rules['metering_label_rules']
         rules = self._filter_by_tenant_id(rules)
         LOG.debug("List count, %s Metering Label Rules" % len(rules))
@@ -695,7 +695,7 @@
 
     def list(self):
         client = self.client
-        _, labels = client.list_metering_labels()
+        labels = client.list_metering_labels()
         labels = labels['metering_labels']
         labels = self._filter_by_tenant_id(labels)
         LOG.debug("List count, %s Metering Labels" % len(labels))
@@ -720,7 +720,7 @@
 
     def list(self):
         client = self.client
-        _, ports = client.list_ports()
+        ports = client.list_ports()
         ports = ports['ports']
         ports = self._filter_by_tenant_id(ports)
         if self.is_preserve:
@@ -747,7 +747,7 @@
 
     def list(self):
         client = self.client
-        _, subnets = client.list_subnets()
+        subnets = client.list_subnets()
         subnets = subnets['subnets']
         subnets = self._filter_by_tenant_id(subnets)
         if self.is_preserve:
diff --git a/tempest/cmd/javelin.py b/tempest/cmd/javelin.py
index 6879db9..97aa62b 100755
--- a/tempest/cmd/javelin.py
+++ b/tempest/cmd/javelin.py
@@ -509,15 +509,10 @@
 def _get_router_namespace(client, network):
     network_id = _get_resource_by_name(client.networks,
                                        'networks', network)['id']
-    resp, n_body = client.networks.list_routers()
-    if not resp_ok(resp):
-        raise ValueError("unable to routers list: [%s] %s" % (resp, n_body))
+    n_body = client.networks.list_routers()
     for router in n_body['routers']:
         router_id = router['id']
-        resp, r_body = client.networks.list_router_interfaces(router_id)
-        if not resp_ok(resp):
-            raise ValueError("unable to router interfaces list: [%s] %s" %
-                             (resp, r_body))
+        r_body = client.networks.list_router_interfaces(router_id)
         for port in r_body['ports']:
             if port['network_id'] == network_id:
                 return "qrouter-%s" % router_id
@@ -527,9 +522,12 @@
     get_resources = getattr(client, 'list_%s' % resource)
     if get_resources is None:
         raise AttributeError("client doesn't have method list_%s" % resource)
-    r, body = get_resources()
-    if not resp_ok(r):
-        raise ValueError("unable to list %s: [%s] %s" % (resource, r, body))
+    # Until all tempest client methods are changed to return only one value,
+    # we cannot assume they all have the same signature so we need to discard
+    # the unused response first value it two values are being returned.
+    body = get_resources()
+    if type(body) == tuple:
+        body = body[1]
     if isinstance(body, dict):
         body = body[resource]
     for res in body:
@@ -544,7 +542,7 @@
         client = client_for_user(network['owner'])
 
         # only create a network if the name isn't here
-        r, body = client.networks.list_networks()
+        body = client.networks.list_networks()
         if any(item['name'] == network['name'] for item in body['networks']):
             LOG.warning("Dupplicated network name: %s" % network['name'])
             continue
@@ -596,7 +594,7 @@
         client = client_for_user(router['owner'])
 
         # only create a router if the name isn't here
-        r, body = client.networks.list_routers()
+        body = client.networks.list_routers()
         if any(item['name'] == router['name'] for item in body['routers']):
             LOG.warning("Dupplicated router name: %s" % router['name'])
             continue
diff --git a/tempest/cmd/verify_tempest_config.py b/tempest/cmd/verify_tempest_config.py
index 8707427..b2c2ffb 100755
--- a/tempest/cmd/verify_tempest_config.py
+++ b/tempest/cmd/verify_tempest_config.py
@@ -162,7 +162,10 @@
 
 def verify_extensions(os, service, results):
     extensions_client = get_extension_client(os, service)
-    __, resp = extensions_client.list_extensions()
+    if service == 'neutron':
+        resp = extensions_client.list_extensions()
+    else:
+        __, resp = extensions_client.list_extensions()
     # For Nova, Cinder and Neutron we use the alias name rather than the
     # 'name' field because the alias is considered to be the canonical
     # name.
diff --git a/tempest/common/isolated_creds.py b/tempest/common/isolated_creds.py
index 1ce1e39..9a9ef82 100644
--- a/tempest/common/isolated_creds.py
+++ b/tempest/common/isolated_creds.py
@@ -174,7 +174,7 @@
         return network, subnet, router
 
     def _create_network(self, name, tenant_id):
-        _, resp_body = self.network_admin_client.create_network(
+        resp_body = self.network_admin_client.create_network(
             name=name, tenant_id=tenant_id)
         return resp_body['network']
 
@@ -184,7 +184,7 @@
         for subnet_cidr in base_cidr.subnet(mask_bits):
             try:
                 if self.network_resources:
-                    _, resp_body = self.network_admin_client.\
+                    resp_body = self.network_admin_client.\
                         create_subnet(
                             network_id=network_id, cidr=str(subnet_cidr),
                             name=subnet_name,
@@ -192,7 +192,7 @@
                             enable_dhcp=self.network_resources['dhcp'],
                             ip_version=4)
                 else:
-                    _, resp_body = self.network_admin_client.\
+                    resp_body = self.network_admin_client.\
                         create_subnet(network_id=network_id,
                                       cidr=str(subnet_cidr),
                                       name=subnet_name,
@@ -210,7 +210,7 @@
     def _create_router(self, router_name, tenant_id):
         external_net_id = dict(
             network_id=CONF.network.public_network_id)
-        _, resp_body = self.network_admin_client.create_router(
+        resp_body = self.network_admin_client.create_router(
             router_name,
             external_gateway_info=external_net_id,
             tenant_id=tenant_id)
@@ -302,8 +302,8 @@
 
     def _cleanup_default_secgroup(self, tenant):
         net_client = self.network_admin_client
-        _, resp_body = net_client.list_security_groups(tenant_id=tenant,
-                                                       name="default")
+        resp_body = net_client.list_security_groups(tenant_id=tenant,
+                                                    name="default")
         secgroups_to_delete = resp_body['security_groups']
         for secgroup in secgroups_to_delete:
             try:
diff --git a/tempest/common/utils/data_utils.py b/tempest/common/utils/data_utils.py
index 5a29ea0..d441778 100644
--- a/tempest/common/utils/data_utils.py
+++ b/tempest/common/utils/data_utils.py
@@ -14,6 +14,7 @@
 #    under the License.
 
 import itertools
+import netaddr
 import random
 import uuid
 
@@ -79,3 +80,22 @@
     """
     return ''.join([chr(random.randint(0, 255))
                     for i in range(size)])
+
+
+def get_ipv6_addr_by_EUI64(cidr, mac):
+    # Check if the prefix is IPv4 address
+    is_ipv4 = netaddr.valid_ipv4(cidr)
+    if is_ipv4:
+        msg = "Unable to generate IP address by EUI64 for IPv4 prefix"
+        raise TypeError(msg)
+    try:
+        eui64 = int(netaddr.EUI(mac).eui64())
+        prefix = netaddr.IPNetwork(cidr)
+        return netaddr.IPAddress(prefix.first + eui64 ^ (1 << 57))
+    except (ValueError, netaddr.AddrFormatError):
+        raise TypeError('Bad prefix or mac format for generating IPv6 '
+                        'address by EUI-64: %(prefix)s, %(mac)s:'
+                        % {'prefix': cidr, 'mac': mac})
+    except TypeError:
+        raise TypeError('Bad prefix type for generate IPv6 address by '
+                        'EUI-64: %s' % cidr)
diff --git a/tempest/scenario/manager.py b/tempest/scenario/manager.py
index 410d90a..61a7d2e 100644
--- a/tempest/scenario/manager.py
+++ b/tempest/scenario/manager.py
@@ -558,7 +558,7 @@
         if not tenant_id:
             tenant_id = client.rest_client.tenant_id
         name = data_utils.rand_name(namestart)
-        _, result = client.create_network(name=name, tenant_id=tenant_id)
+        result = client.create_network(name=name, tenant_id=tenant_id)
         network = net_resources.DeletableNetwork(client=client,
                                                  **result['network'])
         self.assertEqual(network.name, name)
@@ -585,7 +585,7 @@
         def temp(*args, **kwargs):
             temp_method = self.admin_manager.network_client.__getattr__(
                 'list_%s' % resource_type)
-            _, resource_list = temp_method(*args, **kwargs)
+            resource_list = temp_method(*args, **kwargs)
             return resource_list[resource_type]
         return temp
 
@@ -634,7 +634,7 @@
                 **kwargs
             )
             try:
-                _, result = client.create_subnet(**subnet)
+                result = client.create_subnet(**subnet)
                 break
             except exceptions.Conflict as e:
                 is_overlapping_cidr = 'overlaps with another subnet' in str(e)
@@ -651,7 +651,7 @@
         if not client:
             client = self.network_client
         name = data_utils.rand_name(namestart)
-        _, result = client.create_port(
+        result = client.create_port(
             name=name,
             network_id=network.id,
             tenant_id=network.tenant_id)
@@ -690,7 +690,7 @@
             port_id, ip4 = self._get_server_port_id_and_ip4(thing)
         else:
             ip4 = None
-        _, result = client.create_floatingip(
+        result = client.create_floatingip(
             floating_network_id=external_network_id,
             port_id=port_id,
             tenant_id=thing['tenant_id'],
@@ -823,7 +823,7 @@
         sg_dict = dict(name=sg_name,
                        description=sg_desc)
         sg_dict['tenant_id'] = tenant_id
-        _, result = client.create_security_group(**sg_dict)
+        result = client.create_security_group(**sg_dict)
         secgroup = net_resources.DeletableSecurityGroup(
             client=client,
             **result['security_group']
@@ -883,7 +883,7 @@
                        tenant_id=secgroup.tenant_id)
         ruleset.update(kwargs)
 
-        _, sg_rule = client.create_security_group_rule(**ruleset)
+        sg_rule = client.create_security_group_rule(**ruleset)
         sg_rule = net_resources.DeletableSecurityGroupRule(
             client=client,
             **sg_rule['security_group_rule']
@@ -937,9 +937,9 @@
         """Wrapper utility that returns a test pool."""
         client = self.network_client
         name = data_utils.rand_name('pool')
-        _, resp_pool = client.create_pool(protocol=protocol, name=name,
-                                          subnet_id=subnet_id,
-                                          lb_method=lb_method)
+        resp_pool = client.create_pool(protocol=protocol, name=name,
+                                       subnet_id=subnet_id,
+                                       lb_method=lb_method)
         pool = net_resources.DeletablePool(client=client, **resp_pool['pool'])
         self.assertEqual(pool['name'], name)
         self.addCleanup(self.delete_wrapper, pool.delete)
@@ -948,9 +948,9 @@
     def _create_member(self, address, protocol_port, pool_id):
         """Wrapper utility that returns a test member."""
         client = self.network_client
-        _, resp_member = client.create_member(protocol_port=protocol_port,
-                                              pool_id=pool_id,
-                                              address=address)
+        resp_member = client.create_member(protocol_port=protocol_port,
+                                           pool_id=pool_id,
+                                           address=address)
         member = net_resources.DeletableMember(client=client,
                                                **resp_member['member'])
         self.addCleanup(self.delete_wrapper, member.delete)
@@ -960,9 +960,9 @@
         """Wrapper utility that returns a test vip."""
         client = self.network_client
         name = data_utils.rand_name('vip')
-        _, resp_vip = client.create_vip(protocol=protocol, name=name,
-                                        subnet_id=subnet_id, pool_id=pool_id,
-                                        protocol_port=protocol_port)
+        resp_vip = client.create_vip(protocol=protocol, name=name,
+                                     subnet_id=subnet_id, pool_id=pool_id,
+                                     protocol_port=protocol_port)
         vip = net_resources.DeletableVip(client=client, **resp_vip['vip'])
         self.assertEqual(vip['name'], name)
         self.addCleanup(self.delete_wrapper, vip.delete)
@@ -1007,9 +1007,9 @@
         if not tenant_id:
             tenant_id = client.rest_client.tenant_id
         name = data_utils.rand_name(namestart)
-        _, result = client.create_router(name=name,
-                                         admin_state_up=True,
-                                         tenant_id=tenant_id)
+        result = client.create_router(name=name,
+                                      admin_state_up=True,
+                                      tenant_id=tenant_id)
         router = net_resources.DeletableRouter(client=client,
                                                **result['router'])
         self.assertEqual(router.name, name)
@@ -1274,7 +1274,7 @@
 
     @classmethod
     def _get_default_network(cls):
-        _, networks = cls.networks_client.list_networks()
+        networks = cls.networks_client.list_networks()
         for net in networks:
             if net['label'] == CONF.compute.fixed_network_name:
                 return net
diff --git a/tempest/scenario/test_baremetal_basic_ops.py b/tempest/scenario/test_baremetal_basic_ops.py
index ea10140..d59e31e 100644
--- a/tempest/scenario/test_baremetal_basic_ops.py
+++ b/tempest/scenario/test_baremetal_basic_ops.py
@@ -112,7 +112,7 @@
     def validate_ports(self):
         for port in self.get_ports(self.node['uuid']):
             n_port_id = port['extra']['vif_port_id']
-            _, body = self.network_client.show_port(n_port_id)
+            body = self.network_client.show_port(n_port_id)
             n_port = body['port']
             self.assertEqual(n_port['device_id'], self.instance['id'])
             self.assertEqual(n_port['mac_address'], port['address'])
diff --git a/tempest/scenario/test_dashboard_basic_ops.py b/tempest/scenario/test_dashboard_basic_ops.py
index 2014293..35f6689 100644
--- a/tempest/scenario/test_dashboard_basic_ops.py
+++ b/tempest/scenario/test_dashboard_basic_ops.py
@@ -67,7 +67,7 @@
         response = urllib2.urlopen(CONF.dashboard.dashboard_url)
         self.assertIn("Log In", response.read())
 
-    def user_login(self):
+    def user_login(self, username, password):
         self.opener = urllib2.build_opener(urllib2.HTTPCookieProcessor())
         response = self.opener.open(CONF.dashboard.dashboard_url).read()
 
@@ -79,8 +79,8 @@
         req = urllib2.Request(CONF.dashboard.login_url)
         req.add_header('Content-type', 'application/x-www-form-urlencoded')
         req.add_header('Referer', CONF.dashboard.dashboard_url)
-        params = {'username': CONF.identity.username,
-                  'password': CONF.identity.password,
+        params = {'username': username,
+                  'password': password,
                   'region': parser.region,
                   'csrfmiddlewaretoken': parser.csrf_token}
         self.opener.open(req, urllib.urlencode(params))
@@ -91,6 +91,7 @@
 
     @test.services('dashboard')
     def test_basic_scenario(self):
+        creds = self.credentials()
         self.check_login_page()
-        self.user_login()
+        self.user_login(creds.username, creds.password)
         self.check_home_page()
diff --git a/tempest/scenario/test_network_v6.py b/tempest/scenario/test_network_v6.py
index a75fa02..1a82e78 100644
--- a/tempest/scenario/test_network_v6.py
+++ b/tempest/scenario/test_network_v6.py
@@ -68,15 +68,15 @@
          one IPv4 subnet
          Creates router with ports on both subnets
         """
-        net = self._create_network(tenant_id=self.tenant_id)
-        sub4 = self._create_subnet(network=net,
+        self.network = self._create_network(tenant_id=self.tenant_id)
+        sub4 = self._create_subnet(network=self.network,
                                    namestart='sub4',
                                    ip_version=4,)
         # since https://bugs.launchpad.net/neutron/+bug/1394112 we need
         # to specify gateway_ip manually
         net_range = netaddr.IPNetwork(CONF.network.tenant_network_v6_cidr)
         gateway_ip = (netaddr.IPAddress(net_range) + 1).format()
-        sub6 = self._create_subnet(network=net,
+        sub6 = self._create_subnet(network=self.network,
                                    namestart='sub6',
                                    ip_version=6,
                                    gateway_ip=gateway_ip,
@@ -101,7 +101,10 @@
     def prepare_server(self):
         username = CONF.compute.image_ssh_user
 
-        srv = self.create_server(create_kwargs=self.srv_kwargs)
+        create_kwargs = self.srv_kwargs
+        create_kwargs['networks'] = [{'uuid': self.network.id}]
+
+        srv = self.create_server(create_kwargs=create_kwargs)
         fip = self.create_floating_ip(thing=srv)
         self.define_server_ips(srv=srv)
         ssh = self.get_remote_client(
diff --git a/tempest/services/identity/v3/json/base.py b/tempest/services/identity/v3/json/base.py
new file mode 100644
index 0000000..3df0dab
--- /dev/null
+++ b/tempest/services/identity/v3/json/base.py
@@ -0,0 +1,30 @@
+# Copyright 2014 NEC Corporation.  All rights reserved.
+#
+#    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.
+
+from tempest.common import rest_client
+from tempest import config
+
+CONF = config.CONF
+
+
+class IdentityV3Client(rest_client.RestClient):
+    """
+    Base identity v3 client class
+    """
+
+    def __init__(self, auth_provider):
+        super(IdentityV3Client, self).__init__(auth_provider)
+        self.service = CONF.identity.catalog_type
+        self.endpoint_url = 'adminURL'
+        self.api_version = "v3"
diff --git a/tempest/services/identity/v3/json/credentials_client.py b/tempest/services/identity/v3/json/credentials_client.py
index d424f4c..42acd2a 100644
--- a/tempest/services/identity/v3/json/credentials_client.py
+++ b/tempest/services/identity/v3/json/credentials_client.py
@@ -15,19 +15,10 @@
 
 import json
 
-from tempest.common import rest_client
-from tempest import config
-
-CONF = config.CONF
+from tempest.services.identity.v3.json import base
 
 
-class CredentialsClientJSON(rest_client.RestClient):
-
-    def __init__(self, auth_provider):
-        super(CredentialsClientJSON, self).__init__(auth_provider)
-        self.service = CONF.identity.catalog_type
-        self.endpoint_url = 'adminURL'
-        self.api_version = "v3"
+class CredentialsClientJSON(base.IdentityV3Client):
 
     def create_credential(self, access_key, secret_key, user_id, project_id):
         """Creates a credential."""
diff --git a/tempest/services/identity/v3/json/endpoints_client.py b/tempest/services/identity/v3/json/endpoints_client.py
index c3fedb2..9316a4b 100644
--- a/tempest/services/identity/v3/json/endpoints_client.py
+++ b/tempest/services/identity/v3/json/endpoints_client.py
@@ -15,19 +15,10 @@
 
 import json
 
-from tempest.common import rest_client
-from tempest import config
-
-CONF = config.CONF
+from tempest.services.identity.v3.json import base
 
 
-class EndPointClientJSON(rest_client.RestClient):
-
-    def __init__(self, auth_provider):
-        super(EndPointClientJSON, self).__init__(auth_provider)
-        self.service = CONF.identity.catalog_type
-        self.endpoint_url = 'adminURL'
-        self.api_version = "v3"
+class EndPointClientJSON(base.IdentityV3Client):
 
     def list_endpoints(self):
         """GET endpoints."""
diff --git a/tempest/services/identity/v3/json/identity_client.py b/tempest/services/identity/v3/json/identity_client.py
index 6ac4901..4c8d8df 100644
--- a/tempest/services/identity/v3/json/identity_client.py
+++ b/tempest/services/identity/v3/json/identity_client.py
@@ -19,17 +19,12 @@
 from tempest.common import rest_client
 from tempest import config
 from tempest import exceptions
+from tempest.services.identity.v3.json import base
 
 CONF = config.CONF
 
 
-class IdentityV3ClientJSON(rest_client.RestClient):
-
-    def __init__(self, auth_provider):
-        super(IdentityV3ClientJSON, self).__init__(auth_provider)
-        self.service = CONF.identity.catalog_type
-        self.endpoint_url = 'adminURL'
-        self.api_version = "v3"
+class IdentityV3ClientJSON(base.IdentityV3Client):
 
     def create_user(self, user_name, password=None, project_id=None,
                     email=None, domain_id='default', **kwargs):
diff --git a/tempest/services/identity/v3/json/policy_client.py b/tempest/services/identity/v3/json/policy_client.py
index 579243c..04374a2 100644
--- a/tempest/services/identity/v3/json/policy_client.py
+++ b/tempest/services/identity/v3/json/policy_client.py
@@ -16,18 +16,10 @@
 import json
 
 from tempest.common import rest_client
-from tempest import config
-
-CONF = config.CONF
+from tempest.services.identity.v3.json import base
 
 
-class PolicyClientJSON(rest_client.RestClient):
-
-    def __init__(self, auth_provider):
-        super(PolicyClientJSON, self).__init__(auth_provider)
-        self.service = CONF.identity.catalog_type
-        self.endpoint_url = 'adminURL'
-        self.api_version = "v3"
+class PolicyClientJSON(base.IdentityV3Client):
 
     def create_policy(self, blob, type):
         """Creates a Policy."""
diff --git a/tempest/services/identity/v3/json/region_client.py b/tempest/services/identity/v3/json/region_client.py
index becea6b..8545778 100644
--- a/tempest/services/identity/v3/json/region_client.py
+++ b/tempest/services/identity/v3/json/region_client.py
@@ -16,19 +16,10 @@
 import json
 import urllib
 
-from tempest.common import rest_client
-from tempest import config
-
-CONF = config.CONF
+from tempest.services.identity.v3.json import base
 
 
-class RegionClientJSON(rest_client.RestClient):
-
-    def __init__(self, auth_provider):
-        super(RegionClientJSON, self).__init__(auth_provider)
-        self.service = CONF.identity.catalog_type
-        self.endpoint_url = 'adminURL'
-        self.api_version = "v3"
+class RegionClientJSON(base.IdentityV3Client):
 
     def create_region(self, description, **kwargs):
         """Create region."""
diff --git a/tempest/services/identity/v3/json/service_client.py b/tempest/services/identity/v3/json/service_client.py
index 8e89957..b8b2556 100644
--- a/tempest/services/identity/v3/json/service_client.py
+++ b/tempest/services/identity/v3/json/service_client.py
@@ -15,19 +15,10 @@
 
 import json
 
-from tempest.common import rest_client
-from tempest import config
-
-CONF = config.CONF
+from tempest.services.identity.v3.json import base
 
 
-class ServiceClientJSON(rest_client.RestClient):
-
-    def __init__(self, auth_provider):
-        super(ServiceClientJSON, self).__init__(auth_provider)
-        self.service = CONF.identity.catalog_type
-        self.endpoint_url = 'adminURL'
-        self.api_version = "v3"
+class ServiceClientJSON(base.IdentityV3Client):
 
     def update_service(self, service_id, **kwargs):
         """Updates a service."""
diff --git a/tempest/services/network/json/network_client.py b/tempest/services/network/json/network_client.py
index 809c98b..0a9a1fa 100644
--- a/tempest/services/network/json/network_client.py
+++ b/tempest/services/network/json/network_client.py
@@ -61,13 +61,13 @@
         resp, body = self.put(uri, body)
         self.rest_client.expected_success(200, resp.status)
         body = json.loads(body)
-        return resp, body['quota']
+        return rest_client.ResponseBody(resp, body['quota'])
 
     def reset_quotas(self, tenant_id):
         uri = '%s/quotas/%s' % (self.uri_prefix, tenant_id)
         resp, body = self.delete(uri)
         self.rest_client.expected_success(204, resp.status)
-        return resp, body
+        return rest_client.ResponseBody(resp, body)
 
     def create_router(self, name, admin_state_up=True, **kwargs):
         post_body = {'router': kwargs}
@@ -78,7 +78,7 @@
         resp, body = self.post(uri, body)
         self.rest_client.expected_success(201, resp.status)
         body = json.loads(body)
-        return resp, body
+        return rest_client.ResponseBody(resp, body)
 
     def _update_router(self, router_id, set_enable_snat, **kwargs):
         uri = '%s/routers/%s' % (self.uri_prefix, router_id)
@@ -105,7 +105,7 @@
         resp, body = self.put(uri, update_body)
         self.rest_client.expected_success(200, resp.status)
         body = json.loads(body)
-        return resp, body
+        return rest_client.ResponseBody(resp, body)
 
     def update_router(self, router_id, **kwargs):
         """Update a router leaving enable_snat to its default value."""
@@ -132,7 +132,7 @@
         resp, body = self.put(uri, update_body)
         self.rest_client.expected_success(200, resp.status)
         body = json.loads(body)
-        return resp, body
+        return rest_client.ResponseBody(resp, body)
 
     def add_router_interface_with_port_id(self, router_id, port_id):
         uri = '%s/routers/%s/add_router_interface' % (self.uri_prefix,
@@ -142,7 +142,7 @@
         resp, body = self.put(uri, update_body)
         self.rest_client.expected_success(200, resp.status)
         body = json.loads(body)
-        return resp, body
+        return rest_client.ResponseBody(resp, body)
 
     def remove_router_interface_with_subnet_id(self, router_id, subnet_id):
         uri = '%s/routers/%s/remove_router_interface' % (self.uri_prefix,
@@ -152,7 +152,7 @@
         resp, body = self.put(uri, update_body)
         self.rest_client.expected_success(200, resp.status)
         body = json.loads(body)
-        return resp, body
+        return rest_client.ResponseBody(resp, body)
 
     def remove_router_interface_with_port_id(self, router_id, port_id):
         uri = '%s/routers/%s/remove_router_interface' % (self.uri_prefix,
@@ -162,7 +162,7 @@
         resp, body = self.put(uri, update_body)
         self.rest_client.expected_success(200, resp.status)
         body = json.loads(body)
-        return resp, body
+        return rest_client.ResponseBody(resp, body)
 
     def associate_health_monitor_with_pool(self, health_monitor_id,
                                            pool_id):
@@ -177,7 +177,7 @@
         resp, body = self.post(uri, body)
         self.rest_client.expected_success(201, resp.status)
         body = json.loads(body)
-        return resp, body
+        return rest_client.ResponseBody(resp, body)
 
     def disassociate_health_monitor_with_pool(self, health_monitor_id,
                                               pool_id):
@@ -185,14 +185,14 @@
                                                      health_monitor_id)
         resp, body = self.delete(uri)
         self.rest_client.expected_success(204, resp.status)
-        return resp, body
+        return rest_client.ResponseBody(resp, body)
 
     def list_router_interfaces(self, uuid):
         uri = '%s/ports?device_id=%s' % (self.uri_prefix, uuid)
         resp, body = self.get(uri)
         self.rest_client.expected_success(200, resp.status)
         body = json.loads(body)
-        return resp, body
+        return rest_client.ResponseBody(resp, body)
 
     def update_agent(self, agent_id, agent_info):
         """
@@ -205,14 +205,14 @@
         resp, body = self.put(uri, body)
         self.rest_client.expected_success(200, resp.status)
         body = json.loads(body)
-        return resp, body
+        return rest_client.ResponseBody(resp, body)
 
     def list_pools_hosted_by_one_lbaas_agent(self, agent_id):
         uri = '%s/agents/%s/loadbalancer-pools' % (self.uri_prefix, agent_id)
         resp, body = self.get(uri)
         self.rest_client.expected_success(200, resp.status)
         body = json.loads(body)
-        return resp, body
+        return rest_client.ResponseBody(resp, body)
 
     def show_lbaas_agent_hosting_pool(self, pool_id):
         uri = ('%s/lb/pools/%s/loadbalancer-agent' %
@@ -220,21 +220,21 @@
         resp, body = self.get(uri)
         self.rest_client.expected_success(200, resp.status)
         body = json.loads(body)
-        return resp, body
+        return rest_client.ResponseBody(resp, body)
 
     def list_routers_on_l3_agent(self, agent_id):
         uri = '%s/agents/%s/l3-routers' % (self.uri_prefix, agent_id)
         resp, body = self.get(uri)
         self.rest_client.expected_success(200, resp.status)
         body = json.loads(body)
-        return resp, body
+        return rest_client.ResponseBody(resp, body)
 
     def list_l3_agents_hosting_router(self, router_id):
         uri = '%s/routers/%s/l3-agents' % (self.uri_prefix, router_id)
         resp, body = self.get(uri)
         self.rest_client.expected_success(200, resp.status)
         body = json.loads(body)
-        return resp, body
+        return rest_client.ResponseBody(resp, body)
 
     def add_router_to_l3_agent(self, agent_id, router_id):
         uri = '%s/agents/%s/l3-routers' % (self.uri_prefix, agent_id)
@@ -243,35 +243,35 @@
         resp, body = self.post(uri, body)
         self.rest_client.expected_success(201, resp.status)
         body = json.loads(body)
-        return resp, body
+        return rest_client.ResponseBody(resp, body)
 
     def remove_router_from_l3_agent(self, agent_id, router_id):
         uri = '%s/agents/%s/l3-routers/%s' % (
             self.uri_prefix, agent_id, router_id)
         resp, body = self.delete(uri)
         self.rest_client.expected_success(204, resp.status)
-        return resp, body
+        return rest_client.ResponseBody(resp, body)
 
     def list_dhcp_agent_hosting_network(self, network_id):
         uri = '%s/networks/%s/dhcp-agents' % (self.uri_prefix, network_id)
         resp, body = self.get(uri)
         self.rest_client.expected_success(200, resp.status)
         body = json.loads(body)
-        return resp, body
+        return rest_client.ResponseBody(resp, body)
 
     def list_networks_hosted_by_one_dhcp_agent(self, agent_id):
         uri = '%s/agents/%s/dhcp-networks' % (self.uri_prefix, agent_id)
         resp, body = self.get(uri)
         self.rest_client.expected_success(200, resp.status)
         body = json.loads(body)
-        return resp, body
+        return rest_client.ResponseBody(resp, body)
 
     def remove_network_from_dhcp_agent(self, agent_id, network_id):
         uri = '%s/agents/%s/dhcp-networks/%s' % (self.uri_prefix, agent_id,
                                                  network_id)
         resp, body = self.delete(uri)
         self.rest_client.expected_success(204, resp.status)
-        return resp, body
+        return rest_client.ResponseBody(resp, body)
 
     def create_ikepolicy(self, name, **kwargs):
         post_body = {
@@ -286,7 +286,7 @@
         resp, body = self.post(uri, body)
         self.rest_client.expected_success(201, resp.status)
         body = json.loads(body)
-        return resp, body
+        return rest_client.ResponseBody(resp, body)
 
     def update_extra_routes(self, router_id, nexthop, destination):
         uri = '%s/routers/%s' % (self.uri_prefix, router_id)
@@ -300,7 +300,7 @@
         resp, body = self.put(uri, body)
         self.rest_client.expected_success(200, resp.status)
         body = json.loads(body)
-        return resp, body
+        return rest_client.ResponseBody(resp, body)
 
     def delete_extra_routes(self, router_id):
         uri = '%s/routers/%s' % (self.uri_prefix, router_id)
@@ -314,14 +314,14 @@
         resp, body = self.put(uri, body)
         self.rest_client.expected_success(200, resp.status)
         body = json.loads(body)
-        return resp, body
+        return rest_client.ResponseBody(resp, body)
 
     def list_lb_pool_stats(self, pool_id):
         uri = '%s/lb/pools/%s/stats' % (self.uri_prefix, pool_id)
         resp, body = self.get(uri)
         self.rest_client.expected_success(200, resp.status)
         body = json.loads(body)
-        return resp, body
+        return rest_client.ResponseBody(resp, body)
 
     def add_dhcp_agent_to_network(self, agent_id, network_id):
         post_body = {'network_id': network_id}
@@ -330,7 +330,7 @@
         resp, body = self.post(uri, body)
         self.rest_client.expected_success(201, resp.status)
         body = json.loads(body)
-        return resp, body
+        return rest_client.ResponseBody(resp, body)
 
     def insert_firewall_rule_in_policy(self, firewall_policy_id,
                                        firewall_rule_id, insert_after="",
@@ -346,7 +346,7 @@
         resp, body = self.put(uri, body)
         self.rest_client.expected_success(200, resp.status)
         body = json.loads(body)
-        return resp, body
+        return rest_client.ResponseBody(resp, body)
 
     def remove_firewall_rule_from_policy(self, firewall_policy_id,
                                          firewall_rule_id):
@@ -357,4 +357,4 @@
         resp, body = self.put(uri, update_body)
         self.rest_client.expected_success(200, resp.status)
         body = json.loads(body)
-        return resp, body
+        return rest_client.ResponseBody(resp, body)
diff --git a/tempest/services/network/network_client_base.py b/tempest/services/network/network_client_base.py
index 2c767d9..53fd222 100644
--- a/tempest/services/network/network_client_base.py
+++ b/tempest/services/network/network_client_base.py
@@ -13,6 +13,7 @@
 import time
 import urllib
 
+from tempest.common import rest_client
 from tempest.common.utils import misc
 from tempest import config
 from tempest import exceptions
@@ -113,7 +114,7 @@
             resp, body = self.get(uri)
             result = {plural_name: self.deserialize_list(body)}
             self.rest_client.expected_success(200, resp.status)
-            return resp, result
+            return rest_client.ResponseBody(resp, result)
 
         return _list
 
@@ -123,7 +124,7 @@
             uri = '%s/%s' % (self.get_uri(plural), resource_id)
             resp, body = self.delete(uri)
             self.rest_client.expected_success(204, resp.status)
-            return resp, body
+            return rest_client.ResponseBody(resp, body)
 
         return _delete
 
@@ -139,7 +140,7 @@
             resp, body = self.get(uri)
             body = self.deserialize_single(body)
             self.rest_client.expected_success(200, resp.status)
-            return resp, body
+            return rest_client.ResponseBody(resp, body)
 
         return _show
 
@@ -151,7 +152,7 @@
             resp, body = self.post(uri, post_data)
             body = self.deserialize_single(body)
             self.rest_client.expected_success(201, resp.status)
-            return resp, body
+            return rest_client.ResponseBody(resp, body)
 
         return _create
 
@@ -163,7 +164,7 @@
             resp, body = self.put(uri, post_data)
             body = self.deserialize_single(body)
             self.rest_client.expected_success(200, resp.status)
-            return resp, body
+            return rest_client.ResponseBody(resp, body)
 
         return _update
 
@@ -189,7 +190,7 @@
         resp, body = self.post(uri, body)
         body = {'networks': self.deserialize_list(body)}
         self.rest_client.expected_success(201, resp.status)
-        return resp, body
+        return rest_client.ResponseBody(resp, body)
 
     def create_bulk_subnet(self, subnet_list):
         post_data = {'subnets': subnet_list}
@@ -198,7 +199,7 @@
         resp, body = self.post(uri, body)
         body = {'subnets': self.deserialize_list(body)}
         self.rest_client.expected_success(201, resp.status)
-        return resp, body
+        return rest_client.ResponseBody(resp, body)
 
     def create_bulk_port(self, port_list):
         post_data = {'ports': port_list}
@@ -207,7 +208,7 @@
         resp, body = self.post(uri, body)
         body = {'ports': self.deserialize_list(body)}
         self.rest_client.expected_success(201, resp.status)
-        return resp, body
+        return rest_client.ResponseBody(resp, body)
 
     def wait_for_resource_deletion(self, resource_type, id):
         """Waits for a resource to be deleted."""
diff --git a/tempest/services/network/resources.py b/tempest/services/network/resources.py
index a84b4d5..513d2cf 100644
--- a/tempest/services/network/resources.py
+++ b/tempest/services/network/resources.py
@@ -82,7 +82,7 @@
         self._router_ids = set()
 
     def update(self, *args, **kwargs):
-        _, result = self.client.update_subnet(subnet=self.id, *args, **kwargs)
+        result = self.client.update_subnet(subnet=self.id, *args, **kwargs)
         super(DeletableSubnet, self).update(**result['subnet'])
 
     def add_to_router(self, router_id):
@@ -108,9 +108,9 @@
         return self.update(external_gateway_info=dict())
 
     def update(self, *args, **kwargs):
-        _, result = self.client.update_router(self.id,
-                                              *args,
-                                              **kwargs)
+        result = self.client.update_router(self.id,
+                                           *args,
+                                           **kwargs)
         return super(DeletableRouter, self).update(**result['router'])
 
     def delete(self):
@@ -121,15 +121,15 @@
 class DeletableFloatingIp(DeletableResource):
 
     def refresh(self, *args, **kwargs):
-        _, result = self.client.show_floatingip(self.id,
-                                                *args,
-                                                **kwargs)
+        result = self.client.show_floatingip(self.id,
+                                             *args,
+                                             **kwargs)
         super(DeletableFloatingIp, self).update(**result['floatingip'])
 
     def update(self, *args, **kwargs):
-        _, result = self.client.update_floatingip(self.id,
-                                                  *args,
-                                                  **kwargs)
+        result = self.client.update_floatingip(self.id,
+                                               *args,
+                                               **kwargs)
         super(DeletableFloatingIp, self).update(**result['floatingip'])
 
     def __repr__(self):
@@ -183,5 +183,5 @@
         self.client.delete_vip(self.id)
 
     def refresh(self):
-        _, result = self.client.show_vip(self.id)
-        super(DeletableVip, self).update(**result['vip'])
\ No newline at end of file
+        result = self.client.show_vip(self.id)
+        super(DeletableVip, self).update(**result['vip'])
diff --git a/tempest/tests/cmd/test_verify_tempest_config.py b/tempest/tests/cmd/test_verify_tempest_config.py
index ba69a5d..3b9a990 100644
--- a/tempest/tests/cmd/test_verify_tempest_config.py
+++ b/tempest/tests/cmd/test_verify_tempest_config.py
@@ -222,9 +222,9 @@
 
     def test_verify_extensions_neutron(self):
         def fake_list_extensions():
-            return (None, {'extensions': [{'alias': 'fake1'},
-                                          {'alias': 'fake2'},
-                                          {'alias': 'not_fake'}]})
+            return {'extensions': [{'alias': 'fake1'},
+                                   {'alias': 'fake2'},
+                                   {'alias': 'not_fake'}]}
         fake_os = mock.MagicMock()
         fake_os.network_client.list_extensions = fake_list_extensions
         self.useFixture(mockpatch.PatchObject(
@@ -244,9 +244,9 @@
 
     def test_verify_extensions_neutron_all(self):
         def fake_list_extensions():
-            return (None, {'extensions': [{'alias': 'fake1'},
-                                          {'alias': 'fake2'},
-                                          {'alias': 'not_fake'}]})
+            return {'extensions': [{'alias': 'fake1'},
+                                   {'alias': 'fake2'},
+                                   {'alias': 'not_fake'}]}
         fake_os = mock.MagicMock()
         fake_os.network_client.list_extensions = fake_list_extensions
         self.useFixture(mockpatch.PatchObject(
diff --git a/tempest/tests/test_credentials.py b/tempest/tests/test_credentials.py
index ea576c4..fc80fe2 100644
--- a/tempest/tests/test_credentials.py
+++ b/tempest/tests/test_credentials.py
@@ -24,7 +24,6 @@
 from tempest import exceptions
 from tempest.tests import base
 from tempest.tests import fake_config
-from tempest.tests import fake_http
 from tempest.tests import fake_identity
 
 
@@ -39,8 +38,6 @@
 
     def setUp(self):
         super(CredentialsTests, self).setUp()
-        self.fake_http = fake_http.fake_httplib2(return_type=200)
-        self.stubs.Set(http.ClosingHttp, 'request', self.fake_http.request)
         self.useFixture(fake_config.ConfigFixture())
         self.stubs.Set(config, 'TempestConfigPrivate', fake_config.FakePrivate)
 
@@ -83,7 +80,6 @@
     def setUp(self):
         super(KeystoneV2CredentialsTests, self).setUp()
         self.stubs.Set(http.ClosingHttp, 'request', self.identity_response)
-        self.stubs.Set(config, 'TempestConfigPrivate', fake_config.FakePrivate)
 
     def _verify_credentials(self, credentials_class, filled=True,
                             creds_dict=None):
diff --git a/tempest/tests/test_tenant_isolation.py b/tempest/tests/test_tenant_isolation.py
index df9719b..f29ae5a 100644
--- a/tempest/tests/test_tenant_isolation.py
+++ b/tempest/tests/test_tenant_isolation.py
@@ -92,24 +92,21 @@
         net_fix = self.useFixture(mockpatch.PatchObject(
             iso_creds.network_admin_client,
             'create_network',
-            return_value=({'status': 200},
-                          {'network': {'id': id, 'name': name}})))
+            return_value={'network': {'id': id, 'name': name}}))
         return net_fix
 
     def _mock_subnet_create(self, iso_creds, id, name):
         subnet_fix = self.useFixture(mockpatch.PatchObject(
             iso_creds.network_admin_client,
             'create_subnet',
-            return_value=({'status': 200},
-                          {'subnet': {'id': id, 'name': name}})))
+            return_value={'subnet': {'id': id, 'name': name}}))
         return subnet_fix
 
     def _mock_router_create(self, id, name):
         router_fix = self.useFixture(mockpatch.PatchObject(
             json_network_client.NetworkClientJSON,
             'create_router',
-            return_value=({'status': 200},
-                          {'router': {'id': id, 'name': name}})))
+            return_value={'router': {'id': id, 'name': name}}))
         return router_fix
 
     @mock.patch('tempest.common.rest_client.RestClient')
@@ -242,12 +239,11 @@
     @mock.patch('tempest.common.rest_client.RestClient')
     def test_network_cleanup(self, MockRestClient):
         def side_effect(**args):
-            return ({'status': 200},
-                    {"security_groups": [{"tenant_id": args['tenant_id'],
-                                          "name": args['name'],
-                                          "description": args['name'],
-                                          "security_group_rules": [],
-                                          "id": "sg-%s" % args['tenant_id']}]})
+            return {"security_groups": [{"tenant_id": args['tenant_id'],
+                                         "name": args['name'],
+                                         "description": args['name'],
+                                         "security_group_rules": [],
+                                         "id": "sg-%s" % args['tenant_id']}]}
         iso_creds = isolated_creds.IsolatedCreds('test class',
                                                  password='fake_password')
         # Create primary tenant and network
diff --git a/tools/pretty_tox.sh b/tools/pretty_tox.sh
index ff554c5..fb4e6d5 100755
--- a/tools/pretty_tox.sh
+++ b/tools/pretty_tox.sh
@@ -3,4 +3,10 @@
 set -o pipefail
 
 TESTRARGS=$1
-python setup.py testr --slowest --testr-args="--subunit $TESTRARGS" | subunit-trace --no-failure-debug -f
+python setup.py testr --testr-args="--subunit $TESTRARGS" | subunit-trace --no-failure-debug -f
+retval=$?
+# NOTE(mtreinish) The pipe above would eat the slowest display from pbr's testr
+# wrapper so just manually print the slowest tests.
+echo -e "\nSlowest Tests:\n"
+testr slowest
+exit $retval