diff --git a/tempest/api_schema/response/compute/v2/servers.py b/tempest/api_schema/response/compute/v2/servers.py
index 0132350..83dbb4f 100644
--- a/tempest/api_schema/response/compute/v2/servers.py
+++ b/tempest/api_schema/response/compute/v2/servers.py
@@ -93,6 +93,15 @@
     # these attributes. So they are not 'required'.
     'hostId'
 )
+# NOTE(gmann): Update OS-EXT-IPS:type and OS-EXT-IPS-MAC:mac_addr
+# attributes in server address. Those are API extension,
+# and some environments return a response without
+# these attributes. So they are not 'required'.
+get_server['response_body']['properties']['server']['properties'][
+    'addresses']['patternProperties']['^[a-zA-Z0-9-_.]+$']['items'][
+    'properties'].update({
+        'OS-EXT-IPS:type': {'type': 'string'},
+        'OS-EXT-IPS-MAC:mac_addr': parameter_types.mac_address})
 
 list_virtual_interfaces = {
     'status_code': [200],
@@ -293,11 +302,21 @@
         'accessIPv4': parameter_types.access_ip_v4,
         'accessIPv6': parameter_types.access_ip_v6
     })
-# NOTE(GMann): OS-DCF:diskConfig, security_groups and accessIPv4/v6 are API
-# extensions, and some environments return a response
+# NOTE(GMann): OS-DCF:diskConfig, security_groups and accessIPv4/v6
+# are API extensions, and some environments return a response
 # without these attributes. So they are not 'required'.
 list_servers_detail['response_body']['properties']['servers']['items'][
     'required'].append('hostId')
+# NOTE(gmann): Update OS-EXT-IPS:type and OS-EXT-IPS-MAC:mac_addr
+# attributes in server address. Those are API extension,
+# and some environments return a response without
+# these attributes. So they are not 'required'.
+list_servers_detail['response_body']['properties']['servers']['items'][
+    'properties']['addresses']['patternProperties']['^[a-zA-Z0-9-_.]+$'][
+    'items']['properties'].update({
+        'OS-EXT-IPS:type': {'type': 'string'},
+        'OS-EXT-IPS-MAC:mac_addr': parameter_types.mac_address})
+
 
 rebuild_server = copy.deepcopy(update_server)
 rebuild_server['status_code'] = [202]
diff --git a/tempest/scenario/manager.py b/tempest/scenario/manager.py
index 45c7ddd..55d4a52 100644
--- a/tempest/scenario/manager.py
+++ b/tempest/scenario/manager.py
@@ -41,8 +41,8 @@
     """Base class for scenario tests. Uses tempest own clients. """
 
     @classmethod
-    def resource_setup(cls):
-        super(ScenarioTest, cls).resource_setup()
+    def setup_credentials(cls):
+        super(ScenarioTest, cls).setup_credentials()
         # TODO(andreaf) Some of the code from this resource_setup could be
         # moved into `BaseTestCase`
         cls.isolated_creds = credentials.get_isolated_credentials(
@@ -51,6 +51,10 @@
             credentials=cls.credentials()
         )
         cls.admin_manager = clients.Manager(cls.admin_credentials())
+
+    @classmethod
+    def setup_clients(cls):
+        super(ScenarioTest, cls).setup_clients()
         # Clients (in alphabetical order)
         cls.flavors_client = cls.manager.flavors_client
         cls.floating_ips_client = cls.manager.floating_ips_client
@@ -534,13 +538,13 @@
     """
 
     @classmethod
-    def check_preconditions(cls):
+    def skip_checks(cls):
+        super(NetworkScenarioTest, cls).skip_checks()
         if not CONF.service_available.neutron:
             raise cls.skipException('Neutron not available')
 
     @classmethod
     def resource_setup(cls):
-        cls.check_preconditions()
         super(NetworkScenarioTest, cls).resource_setup()
         cls.tenant_id = cls.manager.identity_client.tenant_id
 
@@ -1141,12 +1145,16 @@
 
 class BaremetalScenarioTest(ScenarioTest):
     @classmethod
-    def resource_setup(cls):
+    def skip_checks(cls):
+        super(BaremetalScenarioTest, cls).skip_checks()
         if (not CONF.service_available.ironic or
            not CONF.baremetal.driver_enabled):
             msg = 'Ironic not available or Ironic compute driver not enabled'
             raise cls.skipException(msg)
-        super(BaremetalScenarioTest, cls).resource_setup()
+
+    @classmethod
+    def setup_credentials(cls):
+        super(BaremetalScenarioTest, cls).setup_credentials()
 
         # use an admin client manager for baremetal client
         manager = clients.Manager(
@@ -1154,6 +1162,9 @@
         )
         cls.baremetal_client = manager.baremetal_client
 
+    @classmethod
+    def resource_setup(cls):
+        super(BaremetalScenarioTest, cls).resource_setup()
         # allow any issues obtaining the node list to raise early
         cls.baremetal_client.list_nodes()
 
@@ -1272,8 +1283,8 @@
     """
 
     @classmethod
-    def resource_setup(cls):
-        super(EncryptionScenarioTest, cls).resource_setup()
+    def setup_clients(cls):
+        super(EncryptionScenarioTest, cls).setup_clients()
         cls.admin_volume_types_client = cls.admin_manager.volume_types_client
 
     def _wait_for_volume_status(self, status):
@@ -1319,10 +1330,10 @@
     """
 
     @classmethod
-    def resource_setup(cls):
+    def skip_checks(cls):
+        super(OrchestrationScenarioTest, cls).skip_checks()
         if not CONF.service_available.heat:
             raise cls.skipException("Heat support is required")
-        super(OrchestrationScenarioTest, cls).resource_setup()
 
     @classmethod
     def credentials(cls):
@@ -1365,13 +1376,17 @@
     """
 
     @classmethod
-    def resource_setup(cls):
+    def skip_checks(cls):
+        super(SwiftScenarioTest, cls).skip_checks()
         if not CONF.service_available.swift:
             skip_msg = ("%s skipped as swift is not available" %
                         cls.__name__)
             raise cls.skipException(skip_msg)
+
+    @classmethod
+    def setup_credentials(cls):
         cls.set_network_resources()
-        super(SwiftScenarioTest, cls).resource_setup()
+        super(SwiftScenarioTest, cls).setup_credentials()
         operator_role = CONF.object_storage.operator_role
         if not cls.isolated_creds.is_role_available(operator_role):
             skip_msg = ("%s skipped because the configured credential provider"
@@ -1382,6 +1397,10 @@
             cls.os_operator = clients.Manager(
                 cls.isolated_creds.get_creds_by_roles(
                     [operator_role]))
+
+    @classmethod
+    def setup_clients(cls):
+        super(SwiftScenarioTest, cls).setup_clients()
         # Clients for Swift
         cls.account_client = cls.os_operator.account_client
         cls.container_client = cls.os_operator.container_client
diff --git a/tempest/scenario/test_aggregates_basic_ops.py b/tempest/scenario/test_aggregates_basic_ops.py
index ff450de..c94a787 100644
--- a/tempest/scenario/test_aggregates_basic_ops.py
+++ b/tempest/scenario/test_aggregates_basic_ops.py
@@ -33,8 +33,8 @@
     Deletes aggregate
     """
     @classmethod
-    def resource_setup(cls):
-        super(TestAggregatesBasicOps, cls).resource_setup()
+    def setup_clients(cls):
+        super(TestAggregatesBasicOps, cls).setup_clients()
         cls.aggregates_client = cls.manager.aggregates_client
         cls.hosts_client = cls.manager.hosts_client
 
diff --git a/tempest/scenario/test_dashboard_basic_ops.py b/tempest/scenario/test_dashboard_basic_ops.py
index 4c4dc94..dd7376a 100644
--- a/tempest/scenario/test_dashboard_basic_ops.py
+++ b/tempest/scenario/test_dashboard_basic_ops.py
@@ -57,11 +57,15 @@
     """
 
     @classmethod
-    def resource_setup(cls):
+    def skip_checks(cls):
+        super(TestDashboardBasicOps, cls).skip_checks()
         if not CONF.service_available.horizon:
             raise cls.skipException("Horizon support is required")
+
+    @classmethod
+    def setup_credentials(cls):
         cls.set_network_resources()
-        super(TestDashboardBasicOps, cls).resource_setup()
+        super(TestDashboardBasicOps, cls).setup_credentials()
 
     def check_login_page(self):
         response = urllib2.urlopen(CONF.dashboard.dashboard_url)
diff --git a/tempest/scenario/test_large_ops.py b/tempest/scenario/test_large_ops.py
index af2b4cb..613732a 100644
--- a/tempest/scenario/test_large_ops.py
+++ b/tempest/scenario/test_large_ops.py
@@ -39,11 +39,19 @@
     """
 
     @classmethod
-    def resource_setup(cls):
+    def skip_checks(cls):
+        super(TestLargeOpsScenario, cls).skip_checks()
         if CONF.scenario.large_ops_number < 1:
             raise cls.skipException("large_ops_number not set to multiple "
                                     "instances")
+
+    @classmethod
+    def setup_credentials(cls):
         cls.set_network_resources()
+        super(TestLargeOpsScenario, cls).setup_credentials()
+
+    @classmethod
+    def resource_setup(cls):
         super(TestLargeOpsScenario, cls).resource_setup()
         # list of cleanup calls to be executed in reverse order
         cls._cleanup_resources = []
diff --git a/tempest/scenario/test_load_balancer_basic.py b/tempest/scenario/test_load_balancer_basic.py
index 2dfabe3..0d17048 100644
--- a/tempest/scenario/test_load_balancer_basic.py
+++ b/tempest/scenario/test_load_balancer_basic.py
@@ -43,8 +43,8 @@
     """
 
     @classmethod
-    def check_preconditions(cls):
-        super(TestLoadBalancerBasic, cls).check_preconditions()
+    def skip_checks(cls):
+        super(TestLoadBalancerBasic, cls).skip_checks()
         cfg = config.network
         if not test.is_extension_enabled('lbaas', 'network'):
             msg = 'LBaaS Extension is not enabled'
@@ -57,7 +57,6 @@
     @classmethod
     def resource_setup(cls):
         super(TestLoadBalancerBasic, cls).resource_setup()
-        cls.check_preconditions()
         cls.servers_keypairs = {}
         cls.members = []
         cls.floating_ips = {}
diff --git a/tempest/scenario/test_network_advanced_server_ops.py b/tempest/scenario/test_network_advanced_server_ops.py
index 19a8716..1d4f915 100644
--- a/tempest/scenario/test_network_advanced_server_ops.py
+++ b/tempest/scenario/test_network_advanced_server_ops.py
@@ -41,8 +41,8 @@
     """
 
     @classmethod
-    def check_preconditions(cls):
-        super(TestNetworkAdvancedServerOps, cls).check_preconditions()
+    def skip_checks(cls):
+        super(TestNetworkAdvancedServerOps, cls).skip_checks()
         if not (CONF.network.tenant_networks_reachable
                 or CONF.network.public_network_id):
             msg = ('Either tenant_networks_reachable must be "true", or '
@@ -50,10 +50,10 @@
             raise cls.skipException(msg)
 
     @classmethod
-    def resource_setup(cls):
+    def setup_credentials(cls):
         # Create no network resources for these tests.
         cls.set_network_resources()
-        super(TestNetworkAdvancedServerOps, cls).resource_setup()
+        super(TestNetworkAdvancedServerOps, cls).setup_credentials()
 
     def _setup_network_and_servers(self):
         self.keypair = self.create_keypair()
diff --git a/tempest/scenario/test_network_basic_ops.py b/tempest/scenario/test_network_basic_ops.py
index 81bec51..f4db878 100644
--- a/tempest/scenario/test_network_basic_ops.py
+++ b/tempest/scenario/test_network_basic_ops.py
@@ -77,23 +77,23 @@
     """
 
     @classmethod
-    def check_preconditions(cls):
-        super(TestNetworkBasicOps, cls).check_preconditions()
+    def skip_checks(cls):
+        super(TestNetworkBasicOps, cls).skip_checks()
         if not (CONF.network.tenant_networks_reachable
                 or CONF.network.public_network_id):
             msg = ('Either tenant_networks_reachable must be "true", or '
                    'public_network_id must be defined.')
             raise cls.skipException(msg)
-
-    @classmethod
-    def resource_setup(cls):
         for ext in ['router', 'security-group']:
             if not test.is_extension_enabled(ext, 'network'):
                 msg = "%s extension not enabled." % ext
                 raise cls.skipException(msg)
+
+    @classmethod
+    def setup_credentials(cls):
         # Create no network resources for these tests.
         cls.set_network_resources()
-        super(TestNetworkBasicOps, cls).resource_setup()
+        super(TestNetworkBasicOps, cls).setup_credentials()
 
     def setUp(self):
         super(TestNetworkBasicOps, self).setUp()
diff --git a/tempest/scenario/test_network_v6.py b/tempest/scenario/test_network_v6.py
index d5d2d77..7b2bdd5 100644
--- a/tempest/scenario/test_network_v6.py
+++ b/tempest/scenario/test_network_v6.py
@@ -34,13 +34,8 @@
     """
 
     @classmethod
-    def resource_setup(cls):
-        # Create no network resources for these tests.
-        cls.set_network_resources()
-        super(TestGettingAddress, cls).resource_setup()
-
-    @classmethod
-    def check_preconditions(cls):
+    def skip_checks(cls):
+        super(TestGettingAddress, cls).skip_checks()
         if not (CONF.network_feature_enabled.ipv6
                 and CONF.network_feature_enabled.ipv6_subnet_attributes):
             raise cls.skipException('IPv6 or its attributes not supported')
@@ -53,7 +48,11 @@
             msg = ('Baremetal does not currently support network isolation')
             raise cls.skipException(msg)
 
-        super(TestGettingAddress, cls).check_preconditions()
+    @classmethod
+    def setup_credentials(cls):
+        # Create no network resources for these tests.
+        cls.set_network_resources()
+        super(TestGettingAddress, cls).setup_credentials()
 
     def setUp(self):
         super(TestGettingAddress, self).setUp()
diff --git a/tempest/scenario/test_security_groups_basic_ops.py b/tempest/scenario/test_security_groups_basic_ops.py
index 4fbadb0..f9667a5 100644
--- a/tempest/scenario/test_security_groups_basic_ops.py
+++ b/tempest/scenario/test_security_groups_basic_ops.py
@@ -119,11 +119,11 @@
             self.router = router
 
     @classmethod
-    def check_preconditions(cls):
+    def skip_checks(cls):
+        super(TestSecurityGroupsBasicOps, cls).skip_checks()
         if CONF.baremetal.driver_enabled:
             msg = ('Not currently supported by baremetal.')
             raise cls.skipException(msg)
-        super(TestSecurityGroupsBasicOps, cls).check_preconditions()
         if not (CONF.network.tenant_networks_reachable or
                 CONF.network.public_network_id):
             msg = ('Either tenant_networks_reachable must be "true", or '
@@ -131,10 +131,10 @@
             raise cls.skipException(msg)
 
     @classmethod
-    def resource_setup(cls):
+    def setup_credentials(cls):
         # Create no network resources for these tests.
         cls.set_network_resources()
-        super(TestSecurityGroupsBasicOps, cls).resource_setup()
+        super(TestSecurityGroupsBasicOps, cls).setup_credentials()
         # TODO(mnewby) Consider looking up entities as needed instead
         # of storing them as collections on the class.
 
@@ -144,6 +144,9 @@
         # Credentials from the manager are filled with both IDs and Names
         cls.alt_creds = cls.alt_manager.credentials
 
+    @classmethod
+    def resource_setup(cls):
+        super(TestSecurityGroupsBasicOps, cls).resource_setup()
         cls.floating_ips = {}
         cls.tenants = {}
         creds = cls.credentials()
@@ -151,6 +154,7 @@
         cls.alt_tenant = cls.TenantProperties(cls.alt_creds)
         for tenant in [cls.primary_tenant, cls.alt_tenant]:
             cls.tenants[tenant.creds.tenant_id] = tenant
+
         cls.floating_ip_access = not CONF.network.public_router_id
 
     def cleanup_wrapper(self, resource):
diff --git a/tempest/scenario/test_server_advanced_ops.py b/tempest/scenario/test_server_advanced_ops.py
index d0b595a..8cbc388 100644
--- a/tempest/scenario/test_server_advanced_ops.py
+++ b/tempest/scenario/test_server_advanced_ops.py
@@ -35,12 +35,16 @@
     """
 
     @classmethod
-    def resource_setup(cls):
+    def skip_checks(cls):
+        super(TestServerAdvancedOps, cls).skip_checks()
         if CONF.compute.flavor_ref_alt == CONF.compute.flavor_ref:
             msg = "Skipping test - flavor_ref and flavor_ref_alt are identical"
             raise cls.skipException(msg)
+
+    @classmethod
+    def setup_credentials(cls):
         cls.set_network_resources()
-        super(TestServerAdvancedOps, cls).resource_setup()
+        super(TestServerAdvancedOps, cls).setup_credentials()
 
     @test.idempotent_id('e6c28180-7454-4b59-b188-0257af08a63b')
     @testtools.skipUnless(CONF.compute_feature_enabled.resize,
diff --git a/tempest/scenario/test_stamp_pattern.py b/tempest/scenario/test_stamp_pattern.py
index bd3cefa..3614e97 100644
--- a/tempest/scenario/test_stamp_pattern.py
+++ b/tempest/scenario/test_stamp_pattern.py
@@ -54,10 +54,10 @@
     """
 
     @classmethod
-    def resource_setup(cls):
+    def skip_checks(cls):
+        super(TestStampPattern, cls).skip_checks()
         if not CONF.volume_feature_enabled.snapshot:
             raise cls.skipException("Cinder volume snapshots are disabled")
-        super(TestStampPattern, cls).resource_setup()
 
     def _wait_for_volume_snapshot_status(self, volume_snapshot, status):
         self.snapshots_client.wait_for_snapshot_status(volume_snapshot['id'],
diff --git a/tempest/scenario/test_swift_telemetry_middleware.py b/tempest/scenario/test_swift_telemetry_middleware.py
index 16c3976..fc9a6e3 100644
--- a/tempest/scenario/test_swift_telemetry_middleware.py
+++ b/tempest/scenario/test_swift_telemetry_middleware.py
@@ -44,7 +44,8 @@
     """
 
     @classmethod
-    def resource_setup(cls):
+    def skip_checks(cls):
+        super(TestSwiftTelemetry, cls).skip_checks()
         if not CONF.service_available.ceilometer:
             skip_msg = ("%s skipped as ceilometer is not available" %
                         cls.__name__)
@@ -52,7 +53,10 @@
         elif CONF.telemetry.too_slow_to_test:
             skip_msg = "Ceilometer feature for fast work mysql is disabled"
             raise cls.skipException(skip_msg)
-        super(TestSwiftTelemetry, cls).resource_setup()
+
+    @classmethod
+    def setup_clients(cls):
+        super(TestSwiftTelemetry, cls).setup_clients()
         cls.telemetry_client = cls.os_operator.telemetry_client
 
     def _confirm_notifications(self, container_name, obj_name):
diff --git a/tempest/scenario/test_volume_boot_pattern.py b/tempest/scenario/test_volume_boot_pattern.py
index d1ea270..95edbd2 100644
--- a/tempest/scenario/test_volume_boot_pattern.py
+++ b/tempest/scenario/test_volume_boot_pattern.py
@@ -38,10 +38,10 @@
      * Check written content in the instance booted from snapshot
     """
     @classmethod
-    def resource_setup(cls):
+    def skip_checks(cls):
+        super(TestVolumeBootPattern, cls).skip_checks()
         if not CONF.volume_feature_enabled.snapshot:
             raise cls.skipException("Cinder volume snapshots are disabled")
-        super(TestVolumeBootPattern, cls).resource_setup()
 
     def _create_volume_from_image(self):
         img_uuid = CONF.compute.image_ref