diff --git a/neutron_tempest_plugin/api/test_ports_negative.py b/neutron_tempest_plugin/api/test_ports_negative.py
new file mode 100644
index 0000000..e327c25
--- /dev/null
+++ b/neutron_tempest_plugin/api/test_ports_negative.py
@@ -0,0 +1,76 @@
+#    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 neutron_lib.db import constants as db_const
+from oslo_utils import uuidutils
+from tempest.lib import decorators
+from tempest.lib import exceptions as lib_exc
+
+from neutron_tempest_plugin.api import base
+
+LONG_NAME_NG = 'z' * (db_const.NAME_FIELD_SIZE + 1)
+LONG_DESCRIPTION_NG = 'z' * (db_const.LONG_DESCRIPTION_FIELD_SIZE + 1)
+
+
+class PortsNegativeTestJSON(base.BaseNetworkTest):
+
+    @classmethod
+    def resource_setup(cls):
+        super(PortsNegativeTestJSON, cls).resource_setup()
+        cls.network = cls.create_network()
+
+    @decorators.attr(type='negative')
+    @decorators.idempotent_id('0cbd256a-a6d4-4afa-a039-44cc13704bab')
+    def test_add_port_with_too_long_name(self):
+        self.assertRaises(lib_exc.BadRequest,
+                          self.create_port,
+                          self.network, name=LONG_NAME_NG)
+
+    @decorators.attr(type='negative')
+    @decorators.idempotent_id('e10da38c-1071-49c9-95c2-0c451e18ae31')
+    def test_add_port_with_too_long_description(self):
+        self.assertRaises(lib_exc.BadRequest,
+                          self.create_port,
+                          self.network, description=LONG_DESCRIPTION_NG)
+
+    @decorators.attr(type='negative')
+    @decorators.idempotent_id('5b69a905-3a84-43a4-807a-1a67ab85caeb')
+    def test_add_port_with_nonexist_tenant_id(self):
+        self.assertRaises(lib_exc.BadRequest,
+                          self.create_port,
+                          self.network,
+                          project_id=uuidutils.generate_uuid())
+
+    @decorators.attr(type='negative')
+    @decorators.idempotent_id('7cf473ae-7ec8-4834-ae17-9ef6ec6b8a32')
+    def test_add_port_with_nonexist_network_id(self):
+        network = self.network
+        network['id'] = uuidutils.generate_uuid()
+        self.assertRaises(lib_exc.NotFound,
+                          self.create_port,
+                          network)
+
+    @decorators.attr(type='negative')
+    @decorators.idempotent_id('cad2d349-25fa-490e-9675-cd2ea24164bc')
+    def test_add_port_with_nonexist_security_groups_id(self):
+        self.assertRaises(lib_exc.NotFound,
+                          self.create_port,
+                          self.network,
+                          security_groups=[uuidutils.generate_uuid()])
+
+    @decorators.attr(type='negative')
+    @decorators.idempotent_id('9b0a4152-9aa4-4169-9b2c-579609e2fb4a')
+    def test_add_port_with_illegal_ip(self):
+        self.assertRaises(lib_exc.BadRequest,
+                          self.create_port,
+                          self.network,
+                          allowed_address_pairs=[{"ip_address: 12.12.12.a"}])