diff --git a/RO-VIM-openstack/osm_rovim_openstack/tests/test_vimconn_openstack.py b/RO-VIM-openstack/osm_rovim_openstack/tests/test_vimconn_openstack.py
index 44b63d2..1dd1c6a 100644
--- a/RO-VIM-openstack/osm_rovim_openstack/tests/test_vimconn_openstack.py
+++ b/RO-VIM-openstack/osm_rovim_openstack/tests/test_vimconn_openstack.py
@@ -60,6 +60,7 @@
 ]
 availability_zone_index = 0
 availability_zone_list = ["nova"]
+security_group_name = None
 floating_network_vim_id = "108b73-e9cc-5a6a-t270-82cc4811bd4a"
 net_id = "83372685-f67f-49fd-8722-eabb7692fc22"
 net2_id = "46472685-f67f-49fd-8722-eabb7692fc22"
@@ -521,6 +522,7 @@
             "name": "management",
             "admin_state_up": True,
         }
+        security_group_name = None
 
         new_port_result, port_result = self.vimconn._create_port(
             net, name, created_items
@@ -529,7 +531,9 @@
         self.assertDictEqual(new_port_result, new_port)
         self.assertDictEqual(port_result, expected_port)
 
-        mock_prepare_port_dict_security_groups.assert_called_once_with(net, port_dict)
+        mock_prepare_port_dict_security_groups.assert_called_once_with(
+            net, port_dict, security_group_name
+        )
         mock_prepare_port_dict_binding.assert_called_once_with(net, port_dict)
         mock_prepare_port_dict_mac_ip_addr.assert_called_once_with(net, port_dict)
         mock_create_new_port.assert_called_once_with(port_dict, created_items, net)
@@ -572,6 +576,7 @@
             "admin_state_up": True,
             "name": name,
         }
+        security_group_name = None
 
         new_port_result, port_result = self.vimconn._create_port(
             net, name, created_items
@@ -580,7 +585,9 @@
         self.assertDictEqual(new_port_result, new_port)
         self.assertDictEqual(port_result, expected_port)
 
-        mock_prepare_port_dict_security_groups.assert_called_once_with(net, port_dict)
+        mock_prepare_port_dict_security_groups.assert_called_once_with(
+            net, port_dict, security_group_name
+        )
         mock_prepare_port_dict_binding.assert_called_once_with(net, port_dict)
         mock_prepare_port_dict_mac_ip_addr.assert_called_once_with(net, port_dict)
         mock_create_new_port.assert_called_once_with(port_dict, created_items, net)
@@ -623,6 +630,7 @@
             "admin_state_up": True,
             "name": name,
         }
+        security_group_name = None
 
         new_port_result, port_result = self.vimconn._create_port(
             net, name, created_items
@@ -631,7 +639,9 @@
         self.assertDictEqual(new_port_result, new_port)
         self.assertDictEqual(port_result, expected_port)
 
-        mock_prepare_port_dict_security_groups.assert_called_once_with(net, port_dict)
+        mock_prepare_port_dict_security_groups.assert_called_once_with(
+            net, port_dict, security_group_name
+        )
         mock_prepare_port_dict_binding.assert_called_once_with(net, port_dict)
         mock_prepare_port_dict_mac_ip_addr.assert_called_once_with(net, port_dict)
         mock_create_new_port.assert_called_once_with(port_dict, created_items, net)
@@ -662,11 +672,14 @@
             "admin_state_up": True,
             "name": name,
         }
+        security_group_name = None
 
         with self.assertRaises(Exception):
             self.vimconn._create_port(net, name, created_items)
 
-        mock_prepare_port_dict_security_groups.assert_called_once_with(net, port_dict)
+        mock_prepare_port_dict_security_groups.assert_called_once_with(
+            net, port_dict, security_group_name
+        )
         mock_prepare_port_dict_binding.assert_called_once_with(net, port_dict)
         mock_prepare_port_dict_mac_ip_addr.assert_called_once_with(net, port_dict)
         mock_create_new_port.assert_called_once_with(port_dict, created_items, net)
@@ -697,11 +710,14 @@
             "admin_state_up": True,
             "name": name,
         }
+        security_group_name = None
 
         with self.assertRaises(Exception):
             self.vimconn._create_port(net, name, created_items)
 
-        mock_prepare_port_dict_security_groups.assert_called_once_with(net, port_dict)
+        mock_prepare_port_dict_security_groups.assert_called_once_with(
+            net, port_dict, security_group_name
+        )
 
         mock_prepare_port_dict_binding.assert_not_called()
         mock_prepare_port_dict_mac_ip_addr.assert_not_called()
@@ -734,11 +750,14 @@
             "admin_state_up": True,
             "name": name,
         }
+        security_group_name = None
 
         with self.assertRaises(Exception):
             self.vimconn._create_port(net, name, created_items)
 
-        mock_prepare_port_dict_security_groups.assert_called_once_with(net, port_dict)
+        mock_prepare_port_dict_security_groups.assert_called_once_with(
+            net, port_dict, security_group_name
+        )
 
         mock_prepare_port_dict_binding.assert_called_once_with(net, port_dict)
 
@@ -771,11 +790,14 @@
             "admin_state_up": True,
             "name": name,
         }
+        security_group_name = None
 
         with self.assertRaises(Exception):
             self.vimconn._create_port(net, name, created_items)
 
-        mock_prepare_port_dict_security_groups.assert_called_once_with(net, port_dict)
+        mock_prepare_port_dict_security_groups.assert_called_once_with(
+            net, port_dict, security_group_name
+        )
         mock_prepare_port_dict_binding.assert_called_once_with(net, port_dict)
         mock_prepare_port_dict_mac_ip_addr.assert_called_once_with(net, port_dict)
 
@@ -817,12 +839,15 @@
                 "fixed_ips": [{"ip_address": ip_addr1}],
             },
         }
+        security_group_name = None
         mock_create_new_port.return_value = new_port
 
         with self.assertRaises(VimConnException):
             self.vimconn._create_port(net, name, created_items)
 
-        mock_prepare_port_dict_security_groups.assert_called_once_with(net, port_dict)
+        mock_prepare_port_dict_security_groups.assert_called_once_with(
+            net, port_dict, security_group_name
+        )
         mock_prepare_port_dict_binding.assert_called_once_with(net, port_dict)
         mock_prepare_port_dict_mac_ip_addr.assert_called_once_with(net, port_dict)
         mock_create_new_port.assert_called_once_with(port_dict, created_items, net)
@@ -938,6 +963,7 @@
         self.assertEqual(external_network, expected_external_network)
         self.assertEqual(expected_no_secured_ports, no_secured_ports)
 
+        security_group_name = None
         mock_create_port.assert_called_once_with(
             {
                 "net_id": net2_id,
@@ -946,6 +972,7 @@
             },
             name,
             created_items,
+            security_group_name,
         )
 
     @patch.object(vimconnector, "_reload_connection")
@@ -1001,6 +1028,7 @@
         self.assertEqual(external_network, expected_external_network)
         self.assertEqual(expected_no_secured_ports, no_secured_ports)
 
+        security_group_name = None
         mock_create_port.assert_called_once_with(
             {
                 "net_id": net2_id,
@@ -1009,6 +1037,7 @@
             },
             name,
             created_items,
+            security_group_name,
         )
 
     @patch.object(vimconnector, "_reload_connection")
@@ -1067,6 +1096,7 @@
                 no_secured_ports,
             )
 
+        security_group_name = None
         mock_create_port.assert_called_once_with(
             {
                 "net_id": net2_id,
@@ -1077,6 +1107,7 @@
             },
             name,
             created_items,
+            security_group_name,
         )
         self.assertEqual(expected_net_list_vim, net_list_vim)
         self.assertEqual(external_network, expected_external_network)
@@ -1128,6 +1159,7 @@
                 no_secured_ports,
             )
 
+        security_group_name = None
         mock_create_port.assert_called_once_with(
             {
                 "net_id": net2_id,
@@ -1137,6 +1169,7 @@
             },
             name,
             created_items,
+            security_group_name,
         )
         self.assertEqual(expected_net_list_vim, net_list_vim)
         self.assertEqual(external_network, expected_external_network)
@@ -1188,6 +1221,7 @@
                 no_secured_ports,
             )
 
+        security_group_name = None
         mock_create_port.assert_called_once_with(
             {
                 "net_id": net2_id,
@@ -1197,6 +1231,7 @@
             },
             name,
             created_items,
+            security_group_name,
         )
         self.assertEqual(expected_net_list_vim, net_list_vim)
         self.assertEqual(external_network, expected_external_network)
@@ -1240,6 +1275,7 @@
 
         self.assertEqual(type(err.exception), KeyError)
 
+        security_group_name = None
         mock_create_port.assert_called_once_with(
             {
                 "net_id": net2_id,
@@ -1249,6 +1285,7 @@
             },
             name,
             created_items,
+            security_group_name,
         )
         self.assertEqual(expected_net_list_vim, net_list_vim)
         self.assertEqual(external_network, expected_external_network)
@@ -3285,6 +3322,7 @@
             disk_list2,
             availability_zone_index,
             availability_zone_list,
+            security_group_name,
         )
         self.assertEqual(result, expected_result)
 
@@ -3296,6 +3334,7 @@
             net_list_vim=[],
             external_network=[],
             no_secured_ports=[],
+            security_group_name=security_group_name,
         )
         mock_create_user_data.assert_called_once_with(cloud_config)
         mock_get_vm_availability_zone.assert_called_once_with(
@@ -3385,6 +3424,7 @@
             disk_list,
             availability_zone_index,
             availability_zone_list,
+            security_group_name,
         )
 
         mock_reload_connection.assert_called_once()
@@ -3395,6 +3435,7 @@
             net_list_vim=[],
             external_network=[],
             no_secured_ports=[],
+            security_group_name=security_group_name,
         )
         mock_create_user_data.assert_called_once_with(cloud_config)
         mock_get_vm_availability_zone.assert_not_called()
@@ -3473,6 +3514,7 @@
             net_list_vim=[],
             external_network=[],
             no_secured_ports=[],
+            security_group_name=security_group_name,
         )
         mock_create_user_data.assert_called_once_with(cloud_config)
         mock_get_vm_availability_zone.assert_called_once_with(
@@ -3560,6 +3602,7 @@
             disk_list2,
             availability_zone_index,
             availability_zone_list,
+            security_group_name,
         )
         self.assertEqual(result, expected_result)
 
@@ -3571,6 +3614,7 @@
             net_list_vim=[],
             external_network=[],
             no_secured_ports=[],
+            security_group_name=security_group_name,
         )
         mock_create_user_data.assert_called_once_with(cloud_config)
         mock_get_vm_availability_zone.assert_called_once_with(
@@ -3660,6 +3704,7 @@
             disk_list2,
             availability_zone_index,
             availability_zone_list,
+            security_group_name,
         )
 
         mock_reload_connection.assert_called_once()
@@ -3670,6 +3715,7 @@
             net_list_vim=[],
             external_network=[],
             no_secured_ports=[],
+            security_group_name=security_group_name,
         )
         mock_create_user_data.assert_called_once_with(cloud_config)
         mock_get_vm_availability_zone.assert_called_once_with(
diff --git a/RO-VIM-openstack/osm_rovim_openstack/vimconn_openstack.py b/RO-VIM-openstack/osm_rovim_openstack/vimconn_openstack.py
index e9d4062..501c692 100644
--- a/RO-VIM-openstack/osm_rovim_openstack/vimconn_openstack.py
+++ b/RO-VIM-openstack/osm_rovim_openstack/vimconn_openstack.py
@@ -637,7 +637,7 @@
                 type(exception).__name__ + ": " + message_error
             )
 
-    def _get_ids_from_name(self):
+    def _get_ids_from_name(self, security_group_name=None):
         """
          Obtain ids from name of tenant and security_groups. Store at self .security_groups_id"
         :return: None
@@ -652,11 +652,15 @@
                 )
             )
 
+        neutron_sg_list = self.neutron.list_security_groups(
+            tenant_id=self.my_tenant_id
+        )["security_groups"]
+
         if self.config.get("security_groups") and not self.security_groups_id:
             # convert from name to id
-            neutron_sg_list = self.neutron.list_security_groups(
-                tenant_id=self.my_tenant_id
-            )["security_groups"]
+            # neutron_sg_list = self.neutron.list_security_groups(
+            #     tenant_id=self.my_tenant_id
+            # )["security_groups"]
 
             self.security_groups_id = []
             for sg in self.config.get("security_groups"):
@@ -671,6 +675,18 @@
                         "Not found security group {} for this tenant".format(sg)
                     )
 
+        if security_group_name is not None:
+            self.security_groups_id = []
+            for neutron_sg in neutron_sg_list:
+                if security_group_name in (neutron_sg["id"], neutron_sg["name"]):
+                    self.security_groups_id.append(neutron_sg["id"])
+                    break
+            else:
+                self.security_groups_id = None
+                raise vimconn.VimConnConnectionException(
+                    "Not found security group {} for this tenant".format(sg)
+                )
+
     def _find_nova_server(self, vm_id):
         """
         Returns the VM instance from Openstack and completes it with flavor ID
@@ -1933,7 +1949,9 @@
                 "No enough availability zones at VIM for this deployment"
             )
 
-    def _prepare_port_dict_security_groups(self, net: dict, port_dict: dict) -> None:
+    def _prepare_port_dict_security_groups(
+        self, net: dict, port_dict: dict, security_group_name=None
+    ) -> None:
         """Fill up the security_groups in the port_dict.
 
         Args:
@@ -1951,6 +1969,10 @@
 
             port_dict["security_groups"] = self.security_groups_id
 
+            if security_group_name is not None:
+                self._get_ids_from_name(security_group_name)
+                port_dict["security_groups"] = self.security_groups_id
+
     def _prepare_port_dict_binding(self, net: dict, port_dict: dict) -> None:
         """Fill up the network binding depending on network type in the port_dict.
 
@@ -2038,7 +2060,7 @@
         return new_port
 
     def _create_port(
-        self, net: dict, name: str, created_items: dict
+        self, net: dict, name: str, created_items: dict, security_group_name=None
     ) -> Tuple[dict, dict]:
         """Create port using net details.
 
@@ -2061,7 +2083,7 @@
         if not port_dict["name"]:
             port_dict["name"] = name
 
-        self._prepare_port_dict_security_groups(net, port_dict)
+        self._prepare_port_dict_security_groups(net, port_dict, security_group_name)
 
         self._prepare_port_dict_binding(net, port_dict)
 
@@ -2086,6 +2108,7 @@
         net_list_vim: list,
         external_network: list,
         no_secured_ports: list,
+        security_group_name=None,
     ) -> None:
         """Create port and fill up net dictionary for new VM instance creation.
 
@@ -2105,7 +2128,9 @@
             if not net.get("net_id"):
                 continue
 
-            new_port, port = self._create_port(net, name, created_items)
+            new_port, port = self._create_port(
+                net, name, created_items, security_group_name
+            )
 
             net_list_vim.append(port)
 
@@ -2760,6 +2785,7 @@
         disk_list=None,
         availability_zone_index=None,
         availability_zone_list=None,
+        security_group_name=None,
     ) -> tuple:
         """Adds a VM instance to VIM.
 
@@ -2842,6 +2868,7 @@
                 net_list_vim=net_list_vim,
                 external_network=external_network,
                 no_secured_ports=no_secured_ports,
+                security_group_name=security_group_name,
             )
 
             # Cloud config