# See the License for the specific language governing permissions and
# limitations under the License.
-from __future__ import absolute_import
-import time
import os
import logging
import sys
-from yardstick.common.utils import ErrorClass
+from yardstick.common import exceptions
+from yardstick.common import utils
from yardstick.network_services.vnf_generic.vnf.sample_vnf import SampleVNFTrafficGen
from yardstick.network_services.vnf_generic.vnf.sample_vnf import ClientResourceHelper
from yardstick.network_services.vnf_generic.vnf.sample_vnf import Rfc2544ResourceHelper
-from yardstick.benchmark.scenarios.networking.vnf_generic import find_relative_file
+
LOG = logging.getLogger(__name__)
try:
from IxNet import IxNextgen
except ImportError:
- IxNextgen = ErrorClass
+ IxNextgen = exceptions.ErrorClass
class IxiaRfc2544Helper(Rfc2544ResourceHelper):
self._connect()
def _connect(self, client=None):
- self.client._connect(self.vnfd_helper)
+ self.client.connect(self.vnfd_helper)
def get_stats(self, *args, **kwargs):
- return self.client.ix_get_statistics()
+ return self.client.get_statistics()
def stop_collect(self):
self._terminated.value = 1
def generate_samples(self, ports, key=None, default=None):
stats = self.get_stats()
- last_result = stats[1]
- latency = stats[0]
samples = {}
- for interface in self.vnfd_helper.interfaces:
+ # this is not DPDK port num, but this is whatever number we gave
+ # when we selected ports and programmed the profile
+ for port_num in ports:
try:
- name = interface["name"]
- # this is not DPDK port num, but this is whatever number we gave
- # when we selected ports and programmed the profile
- port = self.vnfd_helper.port_num(name)
- if port in ports:
- samples[name] = {
- "rx_throughput_kps": float(last_result["Rx_Rate_Kbps"][port]),
- "tx_throughput_kps": float(last_result["Tx_Rate_Kbps"][port]),
- "rx_throughput_mbps": float(last_result["Rx_Rate_Mbps"][port]),
- "tx_throughput_mbps": float(last_result["Tx_Rate_Mbps"][port]),
- "in_packets": int(last_result["Valid_Frames_Rx"][port]),
- "out_packets": int(last_result["Frames_Tx"][port]),
- "RxThroughput": int(last_result["Valid_Frames_Rx"][port]) / 30,
- "TxThroughput": int(last_result["Frames_Tx"][port]) / 30,
- }
- if key:
- avg_latency = latency["Store-Forward_Avg_latency_ns"][port]
- min_latency = latency["Store-Forward_Min_latency_ns"][port]
- max_latency = latency["Store-Forward_Max_latency_ns"][port]
- samples[name][key] = \
- {"Store-Forward_Avg_latency_ns": avg_latency,
- "Store-Forward_Min_latency_ns": min_latency,
- "Store-Forward_Max_latency_ns": max_latency}
+ # reverse lookup port name from port_num so the stats dict is descriptive
+ intf = self.vnfd_helper.find_interface_by_port(port_num)
+ port_name = intf["name"]
+ samples[port_name] = {
+ "rx_throughput_kps": float(stats["Rx_Rate_Kbps"][port_num]),
+ "tx_throughput_kps": float(stats["Tx_Rate_Kbps"][port_num]),
+ "rx_throughput_mbps": float(stats["Rx_Rate_Mbps"][port_num]),
+ "tx_throughput_mbps": float(stats["Tx_Rate_Mbps"][port_num]),
+ "in_packets": int(stats["Valid_Frames_Rx"][port_num]),
+ "out_packets": int(stats["Frames_Tx"][port_num]),
+ # NOTE(ralonsoh): we need to make the traffic injection
+ # time variable.
+ "RxThroughput": int(stats["Valid_Frames_Rx"][port_num]) / 30,
+ "TxThroughput": int(stats["Frames_Tx"][port_num]) / 30,
+ }
+ if key:
+ avg_latency = stats["Store-Forward_Avg_latency_ns"][port_num]
+ min_latency = stats["Store-Forward_Min_latency_ns"][port_num]
+ max_latency = stats["Store-Forward_Max_latency_ns"][port_num]
+ samples[port_name][key] = \
+ {"Store-Forward_Avg_latency_ns": avg_latency,
+ "Store-Forward_Min_latency_ns": min_latency,
+ "Store-Forward_Max_latency_ns": max_latency}
except IndexError:
pass
return samples
+ def _initialize_client(self):
+ """Initialize the IXIA IxNetwork client and configure the server"""
+ self.client.clear_config()
+ self.client.assign_ports()
+ self.client.create_traffic_model()
+
def run_traffic(self, traffic_profile):
if self._terminated.value:
return
default = "00:00:00:00:00:00"
self._build_ports()
-
- # we don't know client_file_name until runtime as instantiate
- client_file_name = \
- find_relative_file(self.scenario_helper.scenario_cfg['ixia_profile'],
- self.scenario_helper.scenario_cfg["task_path"])
- self.client.ix_load_config(client_file_name)
- time.sleep(WAIT_AFTER_CFG_LOAD)
-
- self.client.ix_assign_ports()
+ self._initialize_client()
mac = {}
- # TODO: shouldn't this index map to port number we used to generate the profile
- for index, interface in enumerate(self.vnfd_helper.interfaces, 1):
- virt_intf = interface["virtual-interface"]
- mac.update({
- "src_mac_{}".format(index): virt_intf.get("local_mac", default),
- "dst_mac_{}".format(index): virt_intf.get("dst_mac", default),
- })
+ for port_name in self.vnfd_helper.port_pairs.all_ports:
+ intf = self.vnfd_helper.find_interface(name=port_name)
+ virt_intf = intf["virtual-interface"]
+ # we only know static traffic id by reading the json
+ # this is used by _get_ixia_trafficrofile
+ port_num = self.vnfd_helper.port_num(intf)
+ mac["src_mac_{}".format(port_num)] = virt_intf.get("local_mac", default)
+ mac["dst_mac_{}".format(port_num)] = virt_intf.get("dst_mac", default)
- samples = {}
-
- ixia_file = find_relative_file("ixia_traffic.cfg",
- self.scenario_helper.scenario_cfg["task_path"])
- # Generate ixia traffic config...
try:
while not self._terminated.value:
- traffic_profile.execute(self, self.client, mac, ixia_file)
+ first_run = traffic_profile.execute_traffic(
+ self, self.client, mac)
self.client_started.value = 1
- time.sleep(WAIT_FOR_TRAFFIC)
- self.client.ix_stop_traffic()
- samples = self.generate_samples()
+ # pylint: disable=unnecessary-lambda
+ utils.wait_until_true(lambda: self.client.is_traffic_stopped())
+ samples = self.generate_samples(traffic_profile.ports)
+
+ # NOTE(ralonsoh): the traffic injection duration is fixed to 30
+ # seconds. This parameter is configurable and must be retrieved
+ # from the traffic_profile.full_profile information.
+ # Every flow must have the same duration.
+ completed, samples = traffic_profile.get_drop_percentage(
+ samples, min_tol, max_tol, first_run=first_run)
self._queue.put(samples)
- status, samples = traffic_profile.get_drop_percentage(self, samples, min_tol,
- max_tol, self.client, mac,
- ixia_file)
- current = samples['CurrentDropPercentage']
- if min_tol <= current <= max_tol or status == 'Completed':
+ if completed:
self._terminated.value = 1
- self.client.ix_stop_traffic()
- self._queue.put(samples)
- except Exception:
- LOG.info("Run Traffic terminated")
- pass
-
- if not self.rfc_helper.is_done():
- self._terminated.value = 1
- return
+ except Exception: # pylint: disable=broad-except
+ LOG.exception('Run Traffic terminated')
- traffic_profile.execute_traffic(self, self.client, mac, ixia_file)
- for _ in range(5):
- time.sleep(self.LATENCY_TIME_SLEEP)
- self.client.ix_stop_traffic()
- samples = self.generate_samples(traffic_profile.ports, 'latency', {})
- self._queue.put(samples)
- traffic_profile.start_ixia_latency(self, self.client, mac, ixia_file)
- if self._terminated.value:
- break
-
- self.client.ix_stop_traffic()
self._terminated.value = 1
def collect_kpi(self):
def _check_status(self):
pass
- def scale(self, flavor=""):
- pass
-
- def listen_traffic(self, traffic_profile):
- pass
-
def terminate(self):
self.resource_helper.stop_collect()
super(IxiaTrafficGen, self).terminate()
-
- def wait_for_instantiate(self):
- # not needed for IxNet
- pass
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