diff --git a/tempest/api/network/test_networks.py b/tempest/api/network/test_networks.py
index 0175de7..e50230a 100644
--- a/tempest/api/network/test_networks.py
+++ b/tempest/api/network/test_networks.py
@@ -115,13 +115,13 @@
     @test.attr(type='smoke')
     def test_show_network_fields(self):
         # Verify specific fields of a network
-        field_list = [('fields', 'id'), ('fields', 'name'), ]
+        fields = ['id', 'name']
         resp, body = self.client.show_network(self.network['id'],
-                                              field_list=field_list)
+                                              fields=fields)
         self.assertEqual('200', resp['status'])
         network = body['network']
-        self.assertEqual(len(network), len(field_list))
-        for label, field_name in field_list:
+        self.assertEqual(sorted(network.keys()), sorted(fields))
+        for field_name in fields:
             self.assertEqual(network[field_name], self.network[field_name])
 
     @test.attr(type='smoke')
@@ -136,13 +136,13 @@
     @test.attr(type='smoke')
     def test_list_networks_fields(self):
         # Verify specific fields of the networks
-        resp, body = self.client.list_networks(fields='id')
+        fields = ['id', 'name']
+        resp, body = self.client.list_networks(fields=fields)
         self.assertEqual('200', resp['status'])
         networks = body['networks']
         self.assertNotEmpty(networks, "Network list returned is empty")
         for network in networks:
-            self.assertEqual(len(network), 1)
-            self.assertIn('id', network)
+            self.assertEqual(sorted(network.keys()), sorted(fields))
 
     @test.attr(type='smoke')
     def test_show_subnet(self):
@@ -158,13 +158,13 @@
     @test.attr(type='smoke')
     def test_show_subnet_fields(self):
         # Verify specific fields of a subnet
-        field_list = [('fields', 'id'), ('fields', 'cidr'), ]
+        fields = ['id', 'network_id']
         resp, body = self.client.show_subnet(self.subnet['id'],
-                                             field_list=field_list)
+                                             fields=fields)
         self.assertEqual('200', resp['status'])
         subnet = body['subnet']
-        self.assertEqual(len(subnet), len(field_list))
-        for label, field_name in field_list:
+        self.assertEqual(sorted(subnet.keys()), sorted(fields))
+        for field_name in fields:
             self.assertEqual(subnet[field_name], self.subnet[field_name])
 
     @test.attr(type='smoke')
@@ -179,13 +179,13 @@
     @test.attr(type='smoke')
     def test_list_subnets_fields(self):
         # Verify specific fields of subnets
-        resp, body = self.client.list_subnets(fields='id')
+        fields = ['id', 'network_id']
+        resp, body = self.client.list_subnets(fields=fields)
         self.assertEqual('200', resp['status'])
         subnets = body['subnets']
         self.assertNotEmpty(subnets, "Subnet list returned is empty")
         for subnet in subnets:
-            self.assertEqual(len(subnet), 1)
-            self.assertIn('id', subnet)
+            self.assertEqual(sorted(subnet.keys()), sorted(fields))
 
     def _try_delete_network(self, net_id):
         # delete network, if it exists
diff --git a/tempest/api/network/test_ports.py b/tempest/api/network/test_ports.py
index 66dcaa5..17d89ac 100644
--- a/tempest/api/network/test_ports.py
+++ b/tempest/api/network/test_ports.py
@@ -84,13 +84,13 @@
     @test.attr(type='smoke')
     def test_show_port_fields(self):
         # Verify specific fields of a port
-        field_list = [('fields', 'id'), ]
+        fields = ['id', 'mac_address']
         resp, body = self.client.show_port(self.port['id'],
-                                           field_list=field_list)
+                                           fields=fields)
         self.assertEqual('200', resp['status'])
         port = body['port']
-        self.assertEqual(len(port), len(field_list))
-        for label, field_name in field_list:
+        self.assertEqual(sorted(port.keys()), sorted(fields))
+        for field_name in fields:
             self.assertEqual(port[field_name], self.port[field_name])
 
     @test.attr(type='smoke')
@@ -126,14 +126,14 @@
     @test.attr(type='smoke')
     def test_list_ports_fields(self):
         # Verify specific fields of ports
-        resp, body = self.client.list_ports(fields='id')
+        fields = ['id', 'mac_address']
+        resp, body = self.client.list_ports(fields=fields)
         self.assertEqual('200', resp['status'])
         ports = body['ports']
         self.assertNotEmpty(ports, "Port list returned is empty")
         # Asserting the fields returned are correct
         for port in ports:
-            self.assertEqual(len(port), 1)
-            self.assertIn('id', port)
+            self.assertEqual(sorted(fields), sorted(port.keys()))
 
 
 class PortsTestXML(PortsTestJSON):
diff --git a/tempest/services/network/network_client_base.py b/tempest/services/network/network_client_base.py
index 34c61b0..2a797b2 100644
--- a/tempest/services/network/network_client_base.py
+++ b/tempest/services/network/network_client_base.py
@@ -104,7 +104,7 @@
         def _list(**filters):
             uri = self.get_uri(plural_name)
             if filters:
-                uri += '?' + urllib.urlencode(filters)
+                uri += '?' + urllib.urlencode(filters, doseq=1)
             resp, body = self.get(uri)
             result = {plural_name: self.deserialize_list(body)}
             return resp, result
@@ -120,14 +120,14 @@
         return _delete
 
     def _shower(self, resource_name):
-        def _show(resource_id, field_list=[]):
-            # field_list is a sequence of two-element tuples, with the
-            # first element being 'fields'. An example:
-            # [('fields', 'id'), ('fields', 'name')]
+        def _show(resource_id, **fields):
+            # fields is a dict which key is 'fields' and value is a
+            # list of field's name. An example:
+            # {'fields': ['id', 'name']}
             plural = self.pluralize(resource_name)
             uri = '%s/%s' % (self.get_uri(plural), resource_id)
-            if field_list:
-                uri += '?' + urllib.urlencode(field_list)
+            if fields:
+                uri += '?' + urllib.urlencode(fields, doseq=1)
             resp, body = self.get(uri)
             body = self.deserialize_single(body)
             return resp, body