yardstick/tests/unit/network_services/vnf_generic/vnf/test_tg_trex.py

   1 # Copyright (c) 2016-2017 Intel Corporation
   2 #
   3 # Licensed under the Apache License, Version 2.0 (the "License");
   4 # you may not use this file except in compliance with the License.
   5 # You may obtain a copy of the License at
   6 #
   7 #      http://www.apache.org/licenses/LICENSE-2.0
   8 #
   9 # Unless required by applicable law or agreed to in writing, software
  10 # distributed under the License is distributed on an "AS IS" BASIS,
  11 # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  12 # See the License for the specific language governing permissions and
  13 # limitations under the License.
  14
  15 import copy
  16
  17 import mock
  18 import unittest
  19
  20 from yardstick.network_services.traffic_profile import base as tp_base
  21 from yardstick.network_services.traffic_profile import rfc2544
  22 from yardstick.network_services.vnf_generic.vnf import sample_vnf
  23 from yardstick.network_services.vnf_generic.vnf import tg_trex
  24 from yardstick.benchmark.contexts import base as ctx_base
  25
  26
  27 NAME = 'vnf__1'
  28
  29
  30 class TestTrexTrafficGen(unittest.TestCase):
  31
  32     VNFD = {'vnfd:vnfd-catalog':
  33             {'vnfd':
  34              [{'short-name': 'VpeVnf',
  35                'vdu':
  36                [{'routing_table':
  37                              [{'network': '152.16.100.20',
  38                                'netmask': '255.255.255.0',
  39                                'gateway': '152.16.100.20',
  40                                'if': 'xe0'},
  41                               {'network': '152.16.40.20',
  42                                'netmask': '255.255.255.0',
  43                                'gateway': '152.16.40.20',
  44                                'if': 'xe1'}],
  45                              'description': 'VPE approximation using DPDK',
  46                              'name': 'vpevnf-baremetal',
  47                              'nd_route_tbl':
  48                                  [{'network': '0064:ff9b:0:0:0:0:9810:6414',
  49                                    'netmask': '112',
  50                                    'gateway': '0064:ff9b:0:0:0:0:9810:6414',
  51                                    'if': 'xe0'},
  52                                   {'network': '0064:ff9b:0:0:0:0:9810:2814',
  53                                    'netmask': '112',
  54                                    'gateway': '0064:ff9b:0:0:0:0:9810:2814',
  55                                    'if': 'xe1'}],
  56                              'id': 'vpevnf-baremetal',
  57                              'external-interface':
  58                                  [{'virtual-interface':
  59                                    {'dst_mac': '00:00:00:00:00:04',
  60                                     'vpci': '0000:05:00.0',
  61                                     'local_ip': '152.16.100.19',
  62                                     'type': 'PCI-PASSTHROUGH',
  63                                     'netmask': '255.255.255.0',
  64                                     'dpdk_port_num': 0,
  65                                     'bandwidth': '10 Gbps',
  66                                     'driver': "i40e",
  67                                     'dst_ip': '152.16.100.20',
  68                                     'local_iface_name': 'xe0',
  69                                     'vld_id': 'downlink_0',
  70                                     'ifname': 'xe0',
  71                                     'local_mac': '00:00:00:00:00:02'},
  72                                    'vnfd-connection-point-ref': 'xe0',
  73                                    'name': 'xe0'},
  74                                   {'virtual-interface':
  75                                    {'dst_mac': '00:00:00:00:00:03',
  76                                     'vpci': '0000:05:00.1',
  77                                     'local_ip': '152.16.40.19',
  78                                     'type': 'PCI-PASSTHROUGH',
  79                                     'driver': "i40e",
  80                                     'netmask': '255.255.255.0',
  81                                     'dpdk_port_num': 1,
  82                                     'bandwidth': '10 Gbps',
  83                                     'dst_ip': '152.16.40.20',
  84                                     'local_iface_name': 'xe1',
  85                                     'vld_id': 'uplink_0',
  86                                     'ifname': 'xe1',
  87                                     'local_mac': '00:00:00:00:00:01'},
  88                                    'vnfd-connection-point-ref': 'xe1',
  89                                    'name': 'xe1'}]}],
  90                'description': 'Vpe approximation using DPDK',
  91                'mgmt-interface':
  92                {'vdu-id': 'vpevnf-baremetal',
  93                 'host': '1.1.1.1',
  94                 'password': 'r00t',
  95                             'user': 'root',
  96                             'ip': '1.1.1.1'},
  97                'benchmark':
  98                {'kpi': ['packets_in', 'packets_fwd',
  99                         'packets_dropped']},
 100                'connection-point': [{'type': 'VPORT', 'name': 'xe0'},
 101                                     {'type': 'VPORT', 'name': 'xe1'}],
 102                'id': 'VpeApproxVnf', 'name': 'VPEVnfSsh'}]}}
 103
 104     TRAFFIC_PROFILE = {
 105         "schema": "isb:traffic_profile:0.1",
 106         "name": "fixed",
 107         "description": "Fixed traffic profile to run UDP traffic",
 108         "traffic_profile": {
 109             "traffic_type": "FixedTraffic",
 110             "frame_rate": 100,  # pps
 111             "flow_number": 10,
 112             "frame_size": 64
 113         },
 114     }
 115
 116     SCENARIO_CFG = {
 117         "options": {
 118             "packetsize": 64,
 119             "traffic_type": 4,
 120             "rfc2544": {
 121                 "allowed_drop_rate": "0.8 - 1",
 122             },
 123             "vnf__1": {
 124                 "rules": "acl_1rule.yaml",
 125                 "vnf_config": {
 126                     "lb_config": "SW",
 127                     "lb_count": 1,
 128                     "worker_config": "1C/1T",
 129                     "worker_threads": 1,
 130                 }
 131             }
 132         },
 133         "task_id": "a70bdf4a-8e67-47a3-9dc1-273c14506eb7",
 134         "tc": "tc_ipv4_1Mflow_64B_packetsize",
 135         "runner": {
 136             "object": "NetworkServiceTestCase",
 137             "interval": 35,
 138             "output_filename": "/tmp/yardstick.out",
 139             "runner_id": 74476, "duration": 400,
 140             "type": "Duration"
 141         },
 142         "traffic_profile": "ipv4_throughput_acl.yaml",
 143         "traffic_options": {
 144             "flow": "ipv4_Packets_acl.yaml",
 145             "imix": "imix_voice.yaml"
 146         },
 147         "type": "ISB",
 148         "nodes": {
 149             "tg__2": "trafficgen_2.yardstick",
 150             "tg__1": "trafficgen_1.yardstick",
 151             "vnf__1": "vnf.yardstick"
 152         },
 153         "topology": "udpreplay-tg-topology-baremetal.yaml"
 154     }
 155
 156     CONTEXT_CFG = {
 157         "nodes": {
 158             "vnf__1": {
 159                 "vnfd-id-ref": "vnf__1",
 160                 "ip": "1.2.1.1",
 161                 "interfaces": {
 162                     "xe0": {
 163                         "local_iface_name": "ens786f0",
 164                         "vld_id": tp_base.TrafficProfile.UPLINK,
 165                         "netmask": "255.255.255.0",
 166                         "vpci": "0000:05:00.0",
 167                         "local_ip": "152.16.100.19",
 168                         "driver": "i40e",
 169                         "dst_ip": "152.16.100.20",
 170                         "local_mac": "00:00:00:00:00:02",
 171                         "dst_mac": "00:00:00:00:00:04",
 172                         "dpdk_port_num": 0
 173                     },
 174                     "xe1": {
 175                         "local_iface_name": "ens786f1",
 176                         "vld_id": tp_base.TrafficProfile.DOWNLINK,
 177                         "netmask": "255.255.255.0",
 178                         "vpci": "0000:05:00.1",
 179                         "local_ip": "152.16.40.19",
 180                         "driver": "i40e",
 181                         "dst_ip": "152.16.40.20",
 182                         "local_mac": "00:00:00:00:00:01",
 183                         "dst_mac": "00:00:00:00:00:03",
 184                         "dpdk_port_num": 1
 185                     }
 186                 },
 187                 "host": "1.2.1.1",
 188                 "user": "root",
 189                 "nd_route_tbl": [
 190                     {
 191                         "netmask": "112",
 192                         "if": "xe0",
 193                         "gateway": "0064:ff9b:0:0:0:0:9810:6414",
 194                         "network": "0064:ff9b:0:0:0:0:9810:6414"
 195                     },
 196                     {
 197                         "netmask": "112",
 198                         "if": "xe1",
 199                         "gateway": "0064:ff9b:0:0:0:0:9810:2814",
 200                         "network": "0064:ff9b:0:0:0:0:9810:2814"
 201                     }
 202                 ],
 203                 "password": "r00t",
 204                 "VNF model": "udp_replay.yaml",
 205                 "name": "vnf.yardstick",
 206                 "member-vnf-index": "2",
 207                 "routing_table": [
 208                     {
 209                         "netmask": "255.255.255.0",
 210                         "if": "xe0",
 211                         "gateway": "152.16.100.20",
 212                         "network": "152.16.100.20"
 213                     },
 214                     {
 215                         "netmask": "255.255.255.0",
 216                         "if": "xe1",
 217                         "gateway": "152.16.40.20",
 218                         "network": "152.16.40.20"
 219                     }
 220                 ],
 221                 "role": "vnf"
 222             },
 223             "trafficgen_2.yardstick": {
 224                 "member-vnf-index": "3",
 225                 "role": "TrafficGen",
 226                 "name": "trafficgen_2.yardstick",
 227                 "vnfd-id-ref": "tg__2",
 228                 "ip": "1.2.1.1",
 229                 "interfaces": {
 230                     "xe0": {
 231                         "local_iface_name": "ens513f0",
 232                         "vld_id": tp_base.TrafficProfile.DOWNLINK,
 233                         "netmask": "255.255.255.0",
 234                         "vpci": "0000:02:00.0",
 235                         "local_ip": "152.16.40.20",
 236                         "driver": "ixgbe",
 237                         "dst_ip": "152.16.40.19",
 238                         "local_mac": "00:00:00:00:00:03",
 239                         "dst_mac": "00:00:00:00:00:01",
 240                         "dpdk_port_num": 0
 241                     },
 242                     "xe1": {
 243                         "local_iface_name": "ens513f1",
 244                         "netmask": "255.255.255.0",
 245                         "network": "202.16.100.0",
 246                         "local_ip": "202.16.100.20",
 247                         "driver": "ixgbe",
 248                         "local_mac": "00:1e:67:d0:60:5d",
 249                         "vpci": "0000:02:00.1",
 250                         "dpdk_port_num": 1
 251                     }
 252                 },
 253                 "password": "r00t",
 254                 "VNF model": "l3fwd_vnf.yaml",
 255                 "user": "root"
 256             },
 257             "trafficgen_1.yardstick": {
 258                 "member-vnf-index": "1",
 259                 "role": "TrafficGen",
 260                 "name": "trafficgen_1.yardstick",
 261                 "vnfd-id-ref": "tg__1",
 262                 "ip": "1.2.1.1",
 263                 "interfaces": {
 264                     "xe0": {
 265                         "local_iface_name": "ens785f0",
 266                         "vld_id": tp_base.TrafficProfile.UPLINK,
 267                         "netmask": "255.255.255.0",
 268                         "vpci": "0000:05:00.0",
 269                         "local_ip": "152.16.100.20",
 270                         "driver": "i40e",
 271                         "dst_ip": "152.16.100.19",
 272                         "local_mac": "00:00:00:00:00:04",
 273                         "dst_mac": "00:00:00:00:00:02",
 274                         "dpdk_port_num": 0
 275                     },
 276                     "xe1": {
 277                         "local_ip": "152.16.100.21",
 278                         "driver": "i40e",
 279                         "vpci": "0000:05:00.1",
 280                         "dpdk_port_num": 1,
 281                         "local_iface_name": "ens785f1",
 282                         "netmask": "255.255.255.0",
 283                         "local_mac": "00:00:00:00:00:01"
 284                     }
 285                 },
 286                 "password": "r00t",
 287                 "VNF model": "tg_rfc2544_tpl.yaml",
 288                 "user": "root"
 289             }
 290         }
 291     }
 292
 293     def setUp(self):
 294         self._mock_ssh_helper = mock.patch.object(sample_vnf, 'VnfSshHelper')
 295         self.mock_ssh_helper = self._mock_ssh_helper.start()
 296         self.addCleanup(self._stop_mocks)
 297
 298     def _stop_mocks(self):
 299         self._mock_ssh_helper.stop()
 300
 301     def test___init__(self):
 302         vnfd = self.VNFD['vnfd:vnfd-catalog']['vnfd'][0]
 303         trex_traffic_gen = tg_trex.TrexTrafficGen(NAME, vnfd, 'task_id')
 304         self.assertIsInstance(trex_traffic_gen.resource_helper,
 305                               tg_trex.TrexResourceHelper)
 306
 307     @mock.patch.object(ctx_base.Context, 'get_physical_node_from_server', return_value='mock_node')
 308     def test_collect_kpi(self, *args):
 309         vnfd = self.VNFD['vnfd:vnfd-catalog']['vnfd'][0]
 310         trex_traffic_gen = tg_trex.TrexTrafficGen(NAME, vnfd, 'task_id')
 311         trex_traffic_gen.scenario_helper.scenario_cfg = {
 312             'nodes': {trex_traffic_gen.name: "mock"}
 313         }
 314         trex_traffic_gen.resource_helper._queue.put({})
 315         result = trex_traffic_gen.collect_kpi()
 316         expected = {
 317             'physical_node': 'mock_node',
 318             'collect_stats': {}
 319         }
 320         self.assertEqual(expected, result)
 321
 322     def test_listen_traffic(self):
 323         vnfd = self.VNFD['vnfd:vnfd-catalog']['vnfd'][0]
 324         trex_traffic_gen = tg_trex.TrexTrafficGen(NAME, vnfd, 'task_id')
 325         self.assertIsNone(trex_traffic_gen.listen_traffic({}))
 326
 327     @mock.patch.object(ctx_base.Context, 'get_context_from_server', return_value='fake_context')
 328     def test_instantiate(self, *args):
 329         vnfd = self.VNFD['vnfd:vnfd-catalog']['vnfd'][0]
 330         trex_traffic_gen = tg_trex.TrexTrafficGen(NAME, vnfd, 'task_id')
 331         trex_traffic_gen._start_server = mock.Mock(return_value=0)
 332         trex_traffic_gen._tg_process = mock.MagicMock()
 333         trex_traffic_gen._tg_process.start = mock.Mock()
 334         trex_traffic_gen._tg_process.exitcode = 0
 335         trex_traffic_gen._tg_process._is_alive = mock.Mock(return_value=1)
 336         trex_traffic_gen.ssh_helper = mock.MagicMock()
 337         trex_traffic_gen.resource_helper.ssh_helper = mock.MagicMock()
 338         trex_traffic_gen.setup_helper.setup_vnf_environment = mock.MagicMock()
 339         self.assertIsNone(trex_traffic_gen.instantiate(self.SCENARIO_CFG,
 340                                                        self.CONTEXT_CFG))
 341
 342     @mock.patch.object(ctx_base.Context, 'get_context_from_server', return_value='fake_context')
 343     def test_instantiate_error(self, *args):
 344         vnfd = self.VNFD['vnfd:vnfd-catalog']['vnfd'][0]
 345         trex_traffic_gen = tg_trex.TrexTrafficGen(NAME, vnfd, 'task_id')
 346         trex_traffic_gen._start_server = mock.Mock(return_value=0)
 347         trex_traffic_gen._tg_process = mock.MagicMock()
 348         trex_traffic_gen._tg_process.start = mock.Mock()
 349         trex_traffic_gen._tg_process._is_alive = mock.Mock(return_value=0)
 350         trex_traffic_gen.ssh_helper = mock.MagicMock()
 351         trex_traffic_gen.resource_helper.ssh_helper = mock.MagicMock()
 352         trex_traffic_gen.setup_helper.setup_vnf_environment = mock.MagicMock()
 353         self.assertIsNone(trex_traffic_gen.instantiate(self.SCENARIO_CFG,
 354                                                        self.CONTEXT_CFG))
 355
 356     def test__start_server(self):
 357         vnfd = self.VNFD['vnfd:vnfd-catalog']['vnfd'][0]
 358         trex_traffic_gen = tg_trex.TrexTrafficGen(NAME, vnfd, 'task_id')
 359         trex_traffic_gen.ssh_helper = mock.MagicMock()
 360         trex_traffic_gen.resource_helper.ssh_helper = mock.MagicMock()
 361         trex_traffic_gen.scenario_helper.scenario_cfg = {}
 362         self.assertIsNone(trex_traffic_gen._start_server())
 363
 364     def test__start_server_multiple_queues(self):
 365         vnfd = self.VNFD['vnfd:vnfd-catalog']['vnfd'][0]
 366         trex_traffic_gen = tg_trex.TrexTrafficGen(NAME, vnfd, 'task_id')
 367         trex_traffic_gen.ssh_helper = mock.MagicMock()
 368         trex_traffic_gen.resource_helper.ssh_helper = mock.MagicMock()
 369         trex_traffic_gen.scenario_helper.scenario_cfg = {
 370             "options": {NAME: {"queues_per_port": 2}}}
 371         self.assertIsNone(trex_traffic_gen._start_server())
 372
 373     def test__traffic_runner(self):
 374         mock_traffic_profile = mock.Mock(autospec=tp_base.TrafficProfile)
 375         mock_traffic_profile.get_traffic_definition.return_value = "64"
 376         mock_traffic_profile.execute_traffic.return_value = "64"
 377         mock_traffic_profile.params = self.TRAFFIC_PROFILE
 378
 379         vnfd = self.VNFD['vnfd:vnfd-catalog']['vnfd'][0]
 380         self.sut = tg_trex.TrexTrafficGen(NAME, vnfd, 'task_id')
 381         self.sut.ssh_helper = mock.Mock()
 382         self.sut.ssh_helper.run = mock.Mock()
 383         self.sut._connect_client = mock.Mock()
 384         self.sut._connect_client.get_stats = mock.Mock(return_value="0")
 385         self.sut.resource_helper.RUN_DURATION = 0
 386         self.sut.resource_helper.QUEUE_WAIT_TIME = 0
 387         # must generate cfg before we can run traffic so Trex port mapping is
 388         # created
 389         self.sut.resource_helper.generate_cfg()
 390         self.sut._setup_mq_producer = mock.Mock()
 391         with mock.patch.object(self.sut.resource_helper, 'run_traffic'):
 392             self.sut._traffic_runner(mock_traffic_profile, mock.ANY)
 393
 394     def test__generate_trex_cfg(self):
 395         vnfd = self.VNFD['vnfd:vnfd-catalog']['vnfd'][0]
 396         trex_traffic_gen = tg_trex.TrexTrafficGen(NAME, vnfd, 'task_id')
 397         trex_traffic_gen.resource_helper.ssh_helper = mock.MagicMock()
 398         self.assertIsNone(trex_traffic_gen.resource_helper.generate_cfg())
 399
 400     def test_build_ports_reversed_pci_ordering(self):
 401         vnfd = copy.deepcopy(self.VNFD['vnfd:vnfd-catalog']['vnfd'][0])
 402         vnfd['vdu'][0]['external-interface'] = [
 403             {'virtual-interface':
 404              {'dst_mac': '00:00:00:00:00:04',
 405               'vpci': '0000:05:00.0',
 406               'local_ip': '152.16.100.19',
 407               'type': 'PCI-PASSTHROUGH',
 408               'netmask': '255.255.255.0',
 409               'dpdk_port_num': 2,
 410               'bandwidth': '10 Gbps',
 411               'driver': "i40e",
 412               'dst_ip': '152.16.100.20',
 413               'local_iface_name': 'xe0',
 414               'vld_id': 'downlink_0',
 415               'ifname': 'xe0',
 416               'local_mac': '00:00:00:00:00:02'},
 417              'vnfd-connection-point-ref': 'xe0',
 418              'name': 'xe0'},
 419             {'virtual-interface':
 420              {'dst_mac': '00:00:00:00:00:03',
 421               'vpci': '0000:04:00.0',
 422               'local_ip': '152.16.40.19',
 423               'type': 'PCI-PASSTHROUGH',
 424               'driver': "i40e",
 425               'netmask': '255.255.255.0',
 426               'dpdk_port_num': 0,
 427               'bandwidth': '10 Gbps',
 428               'dst_ip': '152.16.40.20',
 429               'local_iface_name': 'xe1',
 430               'vld_id': 'uplink_0',
 431               'ifname': 'xe1',
 432               'local_mac': '00:00:00:00:00:01'},
 433              'vnfd-connection-point-ref': 'xe1',
 434              'name': 'xe1'}]
 435         trex_traffic_gen = tg_trex.TrexTrafficGen(NAME, vnfd, 'task_id')
 436         trex_traffic_gen.resource_helper.ssh_helper = mock.MagicMock()
 437         trex_traffic_gen.resource_helper.generate_cfg()
 438         trex_traffic_gen.resource_helper._build_ports()
 439         self.assertEqual(sorted(trex_traffic_gen.resource_helper.all_ports),
 440                          [0, 1])
 441         # there is a gap in ordering
 442         self.assertEqual(
 443             {0: 0, 2: 1},
 444             dict(trex_traffic_gen.resource_helper.dpdk_to_trex_port_map))
 445
 446     def test_run_traffic(self):
 447         mock_traffic_profile = mock.Mock(autospec=tp_base.TrafficProfile)
 448         mock_traffic_profile.get_traffic_definition.return_value = "64"
 449         mock_traffic_profile.params = self.TRAFFIC_PROFILE
 450
 451         vnfd = self.VNFD['vnfd:vnfd-catalog']['vnfd'][0]
 452         self.sut = tg_trex.TrexTrafficGen(NAME, vnfd, 'task_id')
 453         self.sut.ssh_helper = mock.Mock()
 454         self.sut.ssh_helper.run = mock.Mock()
 455         self.sut._traffic_runner = mock.Mock(return_value=0)
 456         self.sut.resource_helper.client_started.value = 1
 457         self.sut.run_traffic(mock_traffic_profile)
 458         self.sut._traffic_process.terminate()
 459
 460     def test_terminate(self):
 461         vnfd = self.VNFD['vnfd:vnfd-catalog']['vnfd'][0]
 462         trex_traffic_gen = tg_trex.TrexTrafficGen(NAME, vnfd, 'task_id')
 463         trex_traffic_gen.ssh_helper = mock.MagicMock()
 464         trex_traffic_gen.resource_helper.ssh_helper = mock.MagicMock()
 465         self.assertIsNone(trex_traffic_gen.terminate())
 466
 467     def test__connect_client(self):
 468         vnfd = self.VNFD['vnfd:vnfd-catalog']['vnfd'][0]
 469         trex_traffic_gen = tg_trex.TrexTrafficGen(NAME, vnfd, 'task_id')
 470         client = mock.Mock()
 471         client.connect = mock.Mock(return_value=0)
 472         self.assertIsNotNone(trex_traffic_gen.resource_helper._connect(client))
 473
 474
 475 class TrexResourceHelperTestCase(unittest.TestCase):
 476
 477     def test__get_samples(self):
 478         mock_setup_helper = mock.Mock()
 479         trex_rh = tg_trex.TrexResourceHelper(mock_setup_helper)
 480         trex_rh.vnfd_helper.interfaces = [
 481             {'name': 'interface1'},
 482             {'name': 'interface2'}]
 483         stats = {
 484             10: {'rx_pps': 5, 'ipackets': 200},
 485             20: {'rx_pps': 10, 'ipackets': 300},
 486             'latency': {1: {'latency': 'latency_port_10_pg_id_1'},
 487                         2: {'latency': 'latency_port_10_pg_id_2'},
 488                         3: {'latency': 'latency_port_20_pg_id_3'},
 489                         4: {'latency': 'latency_port_20_pg_id_4'}}
 490         }
 491         port_pg_id = rfc2544.PortPgIDMap()
 492         port_pg_id.add_port(10)
 493         port_pg_id.increase_pg_id()
 494         port_pg_id.increase_pg_id()
 495         port_pg_id.add_port(20)
 496         port_pg_id.increase_pg_id()
 497         port_pg_id.increase_pg_id()
 498
 499         with mock.patch.object(trex_rh, 'get_stats') as mock_get_stats, \
 500                 mock.patch.object(trex_rh.vnfd_helper, 'port_num') as \
 501                 mock_port_num:
 502             mock_get_stats.return_value = stats
 503             mock_port_num.side_effect = [10, 20]
 504             output = trex_rh._get_samples([10, 20], port_pg_id=port_pg_id)
 505
 506         interface = output['interface1']
 507         self.assertEqual(5.0, interface['rx_throughput_fps'])
 508         self.assertEqual(200, interface['in_packets'])
 509         self.assertEqual('latency_port_10_pg_id_1', interface['latency'][1])
 510         self.assertEqual('latency_port_10_pg_id_2', interface['latency'][2])
 511
 512         interface = output['interface2']
 513         self.assertEqual(10.0, interface['rx_throughput_fps'])
 514         self.assertEqual(300, interface['in_packets'])
 515         self.assertEqual('latency_port_20_pg_id_3', interface['latency'][3])
 516         self.assertEqual('latency_port_20_pg_id_4', interface['latency'][4])