diff --git a/tempest/clients.py b/tempest/clients.py
index cae90b0..2c40d0c 100644
--- a/tempest/clients.py
+++ b/tempest/clients.py
@@ -71,6 +71,13 @@
 from tempest_lib.services.identity.v2.token_client import TokenClient
 from tempest_lib.services.identity.v3.token_client import V3TokenClient
 from tempest_lib.services.network.floating_ips_client import FloatingIPsClient
+from tempest_lib.services.network.metering_label_rules_client import \
+    MeteringLabelRulesClient
+from tempest_lib.services.network.metering_labels_client import \
+    MeteringLabelsClient
+from tempest_lib.services.network.networks_client import NetworksClient
+from tempest_lib.services.network.ports_client import PortsClient
+from tempest_lib.services.network.subnets_client import SubnetsClient
 
 from tempest.common import negative_rest_client
 from tempest import config
@@ -114,19 +121,12 @@
     MessagingClient
 from tempest.services.network.json.agents_client import AgentsClient \
     as NetworkAgentsClient
-from tempest.services.network.json.metering_label_rules_client import \
-    MeteringLabelRulesClient
-from tempest.services.network.json.metering_labels_client import \
-    MeteringLabelsClient
 from tempest.services.network.json.network_client import NetworkClient
-from tempest.services.network.json.networks_client import NetworksClient
-from tempest.services.network.json.ports_client import PortsClient
 from tempest.services.network.json.quotas_client import QuotasClient \
     as NetworkQuotasClient
 from tempest.services.network.json.security_groups_client import \
     SecurityGroupsClient
 from tempest.services.network.json.subnetpools_client import SubnetpoolsClient
-from tempest.services.network.json.subnets_client import SubnetsClient
 from tempest.services.object_storage.account_client import AccountClient
 from tempest.services.object_storage.container_client import ContainerClient
 from tempest.services.object_storage.object_client import ObjectClient
diff --git a/tempest/cmd/account_generator.py b/tempest/cmd/account_generator.py
index 6f74578..769c680 100755
--- a/tempest/cmd/account_generator.py
+++ b/tempest/cmd/account_generator.py
@@ -90,6 +90,8 @@
 import tempest_lib.auth
 from tempest_lib.common.utils import data_utils
 import tempest_lib.exceptions
+from tempest_lib.services.network import networks_client
+from tempest_lib.services.network import subnets_client
 import yaml
 
 from tempest.common import identity
@@ -100,8 +102,6 @@
 from tempest.services.identity.v2.json import tenants_client
 from tempest.services.identity.v2.json import users_client
 from tempest.services.network.json import network_client
-from tempest.services.network.json import networks_client
-from tempest.services.network.json import subnets_client
 
 LOG = None
 CONF = config.CONF
diff --git a/tempest/cmd/javelin.py b/tempest/cmd/javelin.py
index a703e8c..8012ad7 100755
--- a/tempest/cmd/javelin.py
+++ b/tempest/cmd/javelin.py
@@ -122,6 +122,7 @@
 from tempest_lib.services.compute import security_group_rules_client
 from tempest_lib.services.compute import security_groups_client
 from tempest_lib.services.compute import servers_client
+from tempest_lib.services.network import subnets_client
 import yaml
 
 from tempest.common import identity
@@ -133,7 +134,6 @@
 from tempest.services.identity.v2.json import users_client
 from tempest.services.image.v2.json import images_client
 from tempest.services.network.json import network_client
-from tempest.services.network.json import subnets_client
 from tempest.services.object_storage import container_client
 from tempest.services.object_storage import object_client
 from tempest.services.telemetry.json import alarming_client
diff --git a/tempest/cmd/main.py b/tempest/cmd/main.py
index 577df9b..acd97a8 100644
--- a/tempest/cmd/main.py
+++ b/tempest/cmd/main.py
@@ -28,6 +28,7 @@
             description='Tempest cli application',
             version=version.VersionInfo('tempest').version_string(),
             command_manager=commandmanager.CommandManager('tempest.cm'),
+            deferred_help=True,
             )
 
     def initialize_app(self, argv):
diff --git a/tempest/common/compute.py b/tempest/common/compute.py
index 6e6ada8..d57bae3 100644
--- a/tempest/common/compute.py
+++ b/tempest/common/compute.py
@@ -55,10 +55,13 @@
     kwargs = fixed_network.set_networks_kwarg(
         tenant_network, kwargs) or {}
 
+    multiple_create_request = (max(kwargs.get('min_count', 0),
+                                   kwargs.get('max_count', 0)) > 1)
+
     if CONF.validation.run_validation and validatable:
         # As a first implementation, multiple pingable or sshable servers will
         # not be supported
-        if 'min_count' in kwargs or 'max_count' in kwargs:
+        if multiple_create_request:
             msg = ("Multiple pingable or sshable servers not supported at "
                    "this stage.")
             raise ValueError(msg)
@@ -112,7 +115,7 @@
 
     # handle the case of multiple servers
     servers = []
-    if 'min_count' in kwargs or 'max_count' in kwargs:
+    if multiple_create_request:
         # Get servers created which name match with name param.
         body_servers = clients.servers_client.list_servers()
         servers = \
diff --git a/tempest/services/network/json/metering_label_rules_client.py b/tempest/services/network/json/metering_label_rules_client.py
deleted file mode 100644
index 374a89c..0000000
--- a/tempest/services/network/json/metering_label_rules_client.py
+++ /dev/null
@@ -1,33 +0,0 @@
-#    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.services.network.json import base
-
-
-class MeteringLabelRulesClient(base.BaseNetworkClient):
-
-    def create_metering_label_rule(self, **kwargs):
-        uri = '/metering/metering-label-rules'
-        post_data = {'metering_label_rule': kwargs}
-        return self.create_resource(uri, post_data)
-
-    def show_metering_label_rule(self, metering_label_rule_id, **fields):
-        uri = '/metering/metering-label-rules/%s' % metering_label_rule_id
-        return self.show_resource(uri, **fields)
-
-    def delete_metering_label_rule(self, metering_label_rule_id):
-        uri = '/metering/metering-label-rules/%s' % metering_label_rule_id
-        return self.delete_resource(uri)
-
-    def list_metering_label_rules(self, **filters):
-        uri = '/metering/metering-label-rules'
-        return self.list_resources(uri, **filters)
diff --git a/tempest/services/network/json/metering_labels_client.py b/tempest/services/network/json/metering_labels_client.py
deleted file mode 100644
index 2e5cdae..0000000
--- a/tempest/services/network/json/metering_labels_client.py
+++ /dev/null
@@ -1,33 +0,0 @@
-#    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.services.network.json import base
-
-
-class MeteringLabelsClient(base.BaseNetworkClient):
-
-    def create_metering_label(self, **kwargs):
-        uri = '/metering/metering-labels'
-        post_data = {'metering_label': kwargs}
-        return self.create_resource(uri, post_data)
-
-    def show_metering_label(self, metering_label_id, **fields):
-        uri = '/metering/metering-labels/%s' % metering_label_id
-        return self.show_resource(uri, **fields)
-
-    def delete_metering_label(self, metering_label_id):
-        uri = '/metering/metering-labels/%s' % metering_label_id
-        return self.delete_resource(uri)
-
-    def list_metering_labels(self, **filters):
-        uri = '/metering/metering-labels'
-        return self.list_resources(uri, **filters)
diff --git a/tempest/services/network/json/networks_client.py b/tempest/services/network/json/networks_client.py
deleted file mode 100644
index 2907d44..0000000
--- a/tempest/services/network/json/networks_client.py
+++ /dev/null
@@ -1,38 +0,0 @@
-#    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.services.network.json import base
-
-
-class NetworksClient(base.BaseNetworkClient):
-
-    def create_network(self, **kwargs):
-        uri = '/networks'
-        post_data = {'network': kwargs}
-        return self.create_resource(uri, post_data)
-
-    def update_network(self, network_id, **kwargs):
-        uri = '/networks/%s' % network_id
-        post_data = {'network': kwargs}
-        return self.update_resource(uri, post_data)
-
-    def show_network(self, network_id, **fields):
-        uri = '/networks/%s' % network_id
-        return self.show_resource(uri, **fields)
-
-    def delete_network(self, network_id):
-        uri = '/networks/%s' % network_id
-        return self.delete_resource(uri)
-
-    def list_networks(self, **filters):
-        uri = '/networks'
-        return self.list_resources(uri, **filters)
diff --git a/tempest/services/network/json/ports_client.py b/tempest/services/network/json/ports_client.py
deleted file mode 100644
index d52d65e..0000000
--- a/tempest/services/network/json/ports_client.py
+++ /dev/null
@@ -1,38 +0,0 @@
-#    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.services.network.json import base
-
-
-class PortsClient(base.BaseNetworkClient):
-
-    def create_port(self, **kwargs):
-        uri = '/ports'
-        post_data = {'port': kwargs}
-        return self.create_resource(uri, post_data)
-
-    def update_port(self, port_id, **kwargs):
-        uri = '/ports/%s' % port_id
-        post_data = {'port': kwargs}
-        return self.update_resource(uri, post_data)
-
-    def show_port(self, port_id, **fields):
-        uri = '/ports/%s' % port_id
-        return self.show_resource(uri, **fields)
-
-    def delete_port(self, port_id):
-        uri = '/ports/%s' % port_id
-        return self.delete_resource(uri)
-
-    def list_ports(self, **filters):
-        uri = '/ports'
-        return self.list_resources(uri, **filters)
diff --git a/tempest/services/network/json/subnets_client.py b/tempest/services/network/json/subnets_client.py
deleted file mode 100644
index 957b606..0000000
--- a/tempest/services/network/json/subnets_client.py
+++ /dev/null
@@ -1,38 +0,0 @@
-#    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.services.network.json import base
-
-
-class SubnetsClient(base.BaseNetworkClient):
-
-    def create_subnet(self, **kwargs):
-        uri = '/subnets'
-        post_data = {'subnet': kwargs}
-        return self.create_resource(uri, post_data)
-
-    def update_subnet(self, subnet_id, **kwargs):
-        uri = '/subnets/%s' % subnet_id
-        post_data = {'subnet': kwargs}
-        return self.update_resource(uri, post_data)
-
-    def show_subnet(self, subnet_id, **fields):
-        uri = '/subnets/%s' % subnet_id
-        return self.show_resource(uri, **fields)
-
-    def delete_subnet(self, subnet_id):
-        uri = '/subnets/%s' % subnet_id
-        return self.delete_resource(uri)
-
-    def list_subnets(self, **filters):
-        uri = '/subnets'
-        return self.list_resources(uri, **filters)
diff --git a/tempest/tests/cmd/test_javelin.py b/tempest/tests/cmd/test_javelin.py
index 2fbb206..ab6a7a0 100644
--- a/tempest/tests/cmd/test_javelin.py
+++ b/tempest/tests/cmd/test_javelin.py
@@ -24,7 +24,7 @@
 
     def setUp(self):
         super(JavelinUnitTest, self).setUp()
-        javelin.setup_logging()
+        javelin.LOG = mock.MagicMock()
         self.fake_client = mock.MagicMock()
         self.fake_object = mock.MagicMock()
 
diff --git a/tempest/tests/common/test_dynamic_creds.py b/tempest/tests/common/test_dynamic_creds.py
index 5cb204f..4379756 100644
--- a/tempest/tests/common/test_dynamic_creds.py
+++ b/tempest/tests/common/test_dynamic_creds.py
@@ -324,7 +324,7 @@
             'tempest.services.network.json.network_client.NetworkClient.'
             'add_router_interface_with_subnet_id')
         primary_creds = creds.get_primary_creds()
-        router_interface_mock.called_once_with('1234', '1234')
+        router_interface_mock.assert_called_once_with('1234', '1234')
         network = primary_creds.network
         subnet = primary_creds.subnet
         router = primary_creds.router
@@ -356,7 +356,7 @@
             'tempest.services.network.json.network_client.NetworkClient.'
             'add_router_interface_with_subnet_id')
         creds.get_primary_creds()
-        router_interface_mock.called_once_with('1234', '1234')
+        router_interface_mock.assert_called_once_with('1234', '1234')
         router_interface_mock.reset_mock()
         # Create alternate tenant and network
         self._mock_user_create('12345', 'fake_alt_user')
@@ -365,7 +365,7 @@
         self._mock_subnet_create(creds, '12345', 'fake_alt_subnet')
         self._mock_router_create('12345', 'fake_alt_router')
         creds.get_alt_creds()
-        router_interface_mock.called_once_with('12345', '12345')
+        router_interface_mock.assert_called_once_with('12345', '12345')
         router_interface_mock.reset_mock()
         # Create admin tenant and networks
         self._mock_user_create('123456', 'fake_admin_user')
@@ -463,7 +463,7 @@
             'tempest.services.network.json.network_client.NetworkClient.'
             'add_router_interface_with_subnet_id')
         alt_creds = creds.get_alt_creds()
-        router_interface_mock.called_once_with('1234', '1234')
+        router_interface_mock.assert_called_once_with('1234', '1234')
         network = alt_creds.network
         subnet = alt_creds.subnet
         router = alt_creds.router
@@ -488,7 +488,7 @@
             'add_router_interface_with_subnet_id')
         self._mock_list_roles('123456', 'admin')
         admin_creds = creds.get_admin_creds()
-        router_interface_mock.called_once_with('1234', '1234')
+        router_interface_mock.assert_called_once_with('1234', '1234')
         network = admin_creds.network
         subnet = admin_creds.subnet
         router = admin_creds.router