Merge "pkt_gen: Adding MoonGen traffic generator"

2 files changed, 766 insertions, 0 deletions

diff --git a/tools/pkt_gen/moongen/__init__.py b/tools/pkt_gen/moongen/__init__.py
new file mode 100644
index 00000000..562eb088
--- /dev/null
+++ b/tools/pkt_gen/moongen/__init__.py
@@ -0,0 +1,13 @@
+# Copyright 2016 Intel Corporation.
+#
+# 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.
diff --git a/tools/pkt_gen/moongen/moongen.py b/tools/pkt_gen/moongen/moongen.py
new file mode 100644
index 00000000..d6c09e5d
--- /dev/null
+++ b/tools/pkt_gen/moongen/moongen.py
@@ -0,0 +1,753 @@
+# Copyright 2016 Red Hat Inc
+#
+# 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.
+#
+# Contributors:
+#   Bill Michalowski, Red Hat Inc.
+#   Andrew Theurer, Red Hat Inc.
+"""
+Moongen Traffic Generator Model
+"""
+
+# python imports
+import logging
+from collections import OrderedDict
+import subprocess
+import re
+
+# VSPerf imports
+from conf import settings
+from core.results.results_constants import ResultsConstants
+from tools.pkt_gen.trafficgen.trafficgenhelper import (
+    TRAFFIC_DEFAULTS,
+    merge_spec)
+from tools.pkt_gen.trafficgen.trafficgen import ITrafficGenerator
+
+class Moongen(ITrafficGenerator):
+    """Moongen Traffic generator wrapper."""
+    _traffic_defaults = TRAFFIC_DEFAULTS.copy()
+    _logger = logging.getLogger(__name__)
+
+    def __init__(self):
+        """Moongen class constructor."""
+        self._logger.info("In moongen __init__ method")
+        self._params = {}
+        self._moongen_host_ip_addr = (
+            settings.getValue('TRAFFICGEN_MOONGEN_HOST_IP_ADDR'))
+        self._moongen_base_dir = (
+            settings.getValue('TRAFFICGEN_MOONGEN_BASE_DIR'))
+        self._moongen_user = settings.getValue('TRAFFICGEN_MOONGEN_USER')
+        self._moongen_ports = settings.getValue('TRAFFICGEN_MOONGEN_PORTS')
+
+    @property
+    def traffic_defaults(self):
+        """Default traffic values.
+
+        These can be expected to be constant across traffic generators,
+        so no setter is provided. Changes to the structure or contents
+        will likely break traffic generator implementations or tests
+        respectively.
+        """
+        self._logger.info("In moongen traffic_defaults method")
+        return self._traffic_defaults
+
+    def create_moongen_cfg_file(self, traffic, duration=60,
+                                acceptable_loss_pct=1, one_shot=0):
+        """Create the MoonGen configuration file from VSPERF's traffic profile
+        :param traffic: Detailed "traffic" spec, i.e. IP address, VLAN tags
+        :param duration: The length of time to generate packet throughput
+        :param acceptable_loss: Maximum packet loss acceptable
+        :param one_shot: No RFC 2544 binary search,
+                        just packet flow at traffic specifics
+        """
+        logging.debug("traffic['frame_rate'] = " + \
+            str(traffic['frame_rate']))
+
+        logging.debug("traffic['multistream'] = " + \
+            str(traffic['multistream']))
+
+        logging.debug("traffic['stream_type'] = " + \
+            str(traffic['stream_type']))
+
+        logging.debug("traffic['l2']['srcmac'] = " + \
+            str(traffic['l2']['srcmac']))
+
+        logging.debug("traffic['l2']['dstmac'] = " + \
+            str(traffic['l2']['dstmac']))
+
+        logging.debug("traffic['l3']['proto'] = " + \
+            str(traffic['l3']['proto']))
+
+        logging.debug("traffic['l3']['srcip'] = " + \
+            str(traffic['l3']['srcip']))
+
+        logging.debug("traffic['l3']['dstip'] = " + \
+            str(traffic['l3']['dstip']))
+
+        logging.debug("traffic['l4']['srcport'] = " + \
+            str(traffic['l4']['srcport']))
+
+        logging.debug("traffic['l4']['dstport'] = " + \
+            str(traffic['l4']['dstport']))
+
+        logging.debug("traffic['vlan']['enabled'] = " + \
+            str(traffic['vlan']['enabled']))
+
+        logging.debug("traffic['vlan']['id'] = " + \
+            str(traffic['vlan']['id']))
+
+        logging.debug("traffic['vlan']['priority'] = " + \
+            str(traffic['vlan']['priority']))
+
+        logging.debug("traffic['vlan']['cfi'] = " + \
+            str(traffic['vlan']['cfi']))
+
+        logging.debug(traffic['l2']['framesize'])
+
+        out_file = open("opnfv-vsperf-cfg.lua", "wt")
+
+        out_file.write("VSPERF {\n")
+
+        out_file.write("testType = \"throughput\",\n")
+
+        out_file.write("runBidirec = " + \
+            traffic['bidir'].lower() + ",\n")
+
+        out_file.write("frameSize = " + \
+            str(traffic['l2']['framesize']) + ",\n")
+
+        out_file.write("srcMac = \"" + \
+            str(traffic['l2']['srcmac']) + "\",\n")
+
+        out_file.write("dstMac = \"" + \
+            str(traffic['l2']['dstmac']) + "\",\n")
+
+        out_file.write("srcIp = \"" + \
+            str(traffic['l3']['srcip']) + "\",\n")
+
+        out_file.write("dstIp = \"" + \
+            str(traffic['l3']['dstip']) + "\",\n")
+
+        out_file.write("vlanId = " + \
+            str(traffic['vlan']['id']) + ",\n")
+
+        out_file.write("searchRunTime = " + \
+            str(duration) + ",\n")
+
+        out_file.write("validationRunTime = " + \
+            str(duration) + ",\n")
+
+        out_file.write("acceptableLossPct = " + \
+            str(acceptable_loss_pct) + ",\n")
+
+        out_file.write("ports = " +\
+            str(self._moongen_ports) +  ",\n")
+
+        if one_shot:
+            out_file.write("oneShot = true,\n")
+
+        # Assume 10G line rates at the moment.  Need to convert VSPERF
+        # frame_rate (percentage of line rate) to Mpps for MoonGen
+
+        out_file.write("startRate = " + str((traffic['frame_rate'] / 100) * 14.88) + "\n")
+        out_file.write("}" + "\n")
+        out_file.close()
+
+        copy_moongen_cfg = "scp opnfv-vsperf-cfg.lua " + \
+                            self._moongen_user + "@" + \
+                            self._moongen_host_ip_addr + ":" + \
+                            self._moongen_base_dir + \
+                            "/. && rm opnfv-vsperf-cfg.lua"
+
+        find_moongen = subprocess.Popen(copy_moongen_cfg,
+                                        shell=True,
+                                        stderr=subprocess.PIPE)
+
+        output, error = find_moongen.communicate()
+
+        if error:
+            logging.error(output)
+            logging.error(error)
+            raise RuntimeError('MOONGEN: Error copying configuration file')
+
+    def connect(self):
+        """Connect to MoonGen traffic generator
+
+        Verify that MoonGen is on the system indicated by
+        the configuration file
+        """
+        self._logger.info("MOONGEN:  In MoonGen connect method...")
+
+        if self._moongen_host_ip_addr:
+            cmd_ping = "ping -c1 " + self._moongen_host_ip_addr
+        else:
+            raise RuntimeError('MOONGEN: MoonGen host not defined')
+
+        ping = subprocess.Popen(cmd_ping, shell=True, stderr=subprocess.PIPE)
+        output, error = ping.communicate()
+
+        if ping.returncode:
+            self._logger.error(error)
+            self._logger.error(output)
+            raise RuntimeError('MOONGEN: Cannot ping MoonGen host at ' + \
+                               self._moongen_host_ip_addr)
+
+        connect_moongen = "ssh " + self._moongen_user + \
+                          "@" + self._moongen_host_ip_addr
+
+        cmd_find_moongen = connect_moongen + " ls " + \
+                           self._moongen_base_dir + "/examples/opnfv-vsperf.lua"
+
+        find_moongen = subprocess.Popen(cmd_find_moongen,
+                                        shell=True,
+                                        stderr=subprocess.PIPE)
+
+        output, error = find_moongen.communicate()
+
+        if find_moongen.returncode:
+            self._logger.error(error)
+            self._logger.error(output)
+            raise RuntimeError(
+                'MOONGEN: Cannot locate MoonGen program at %s within %s' \
+                % (self._moongen_host_ip_addr, self._moongen_base_dir))
+
+        self._logger.info("MOONGEN: MoonGen host successfully found...")
+
+    def disconnect(self):
+        """Disconnect from the traffic generator.
+
+        As with :func:`connect`, this function is optional.
+
+        Where implemented, this function should raise an exception on
+        failure.
+
+        :returns: None
+        """
+        self._logger.info("MOONGEN: In moongen disconnect method")
+
+    def send_burst_traffic(self, traffic=None, numpkts=100, duration=20):
+        """Send a burst of traffic.
+
+        Send a ``numpkts`` packets of traffic, using ``traffic``
+        configuration, with a timeout of ``time``.
+
+        :param traffic: Detailed "traffic" spec, i.e. IP address, VLAN tags
+        :param numpkts: Number of packets to send
+        :param duration: Time to wait to receive packets
+
+        :returns: dictionary of strings with following data:
+            - List of Tx Frames,
+            - List of Rx Frames,
+            - List of Tx Bytes,
+            - List of List of Rx Bytes,
+            - Payload Errors and Sequence Errors.
+        """
+        self._logger.info("In moongen send_burst_traffic method")
+        return NotImplementedError('Moongen Burst traffic not implemented')
+
+    def send_cont_traffic(self, traffic=None, duration=20):
+        """Send a continuous flow of traffic
+
+        Send packets at ``frame rate``, using ``traffic`` configuration,
+        until timeout ``time`` occurs.
+
+        :param traffic: Detailed "traffic" spec, i.e. IP address, VLAN tags
+        :param duration: Time to wait to receive packets (secs)
+        :returns: dictionary of strings with following data:
+            - Tx Throughput (fps),
+            - Rx Throughput (fps),
+            - Tx Throughput (mbps),
+            - Rx Throughput (mbps),
+            - Tx Throughput (% linerate),
+            - Rx Throughput (% linerate),
+            - Min Latency (ns),
+            - Max Latency (ns),
+            - Avg Latency (ns)
+        """
+        self._logger.info("In moongen send_cont_traffic method")
+
+        self._params.clear()
+        self._params['traffic'] = self.traffic_defaults.copy()
+
+        if traffic:
+            self._params['traffic'] = merge_spec(self._params['traffic'],
+                                                 traffic)
+
+        Moongen.create_moongen_cfg_file(self,
+                                        traffic,
+                                        duration=duration,
+                                        acceptable_loss_pct=100.0,
+                                        one_shot=1)
+
+        collected_results = Moongen.run_moongen_and_collect_results(self,
+                                                                    test_run=1)
+
+        total_throughput_rx_fps = (
+            float(collected_results[ResultsConstants.THROUGHPUT_RX_FPS]))
+
+        total_throughput_rx_mbps = (
+            float(collected_results[ResultsConstants.THROUGHPUT_RX_MBPS]))
+
+        total_throughput_rx_pct = (
+            float(collected_results[ResultsConstants.THROUGHPUT_RX_PERCENT]))
+
+        total_throughput_tx_fps = (
+            float(collected_results[ResultsConstants.TX_RATE_FPS]))
+
+        total_throughput_tx_mbps = (
+            float(collected_results[ResultsConstants.TX_RATE_MBPS]))
+
+        total_throughput_tx_pct = (
+            float(collected_results[ResultsConstants.TX_RATE_PERCENT]))
+
+        total_min_latency_ns = 0
+        total_max_latency_ns = 0
+        total_avg_latency_ns = 0
+
+        results = OrderedDict()
+        results[ResultsConstants.THROUGHPUT_RX_FPS] = (
+            '{:,.6f}'.format(total_throughput_rx_fps))
+
+        results[ResultsConstants.THROUGHPUT_RX_MBPS] = (
+            '{:,.3f}'.format(total_throughput_rx_mbps))
+
+        results[ResultsConstants.THROUGHPUT_RX_PERCENT] = (
+            '{:,.3f}'.format(total_throughput_rx_pct))
+
+        results[ResultsConstants.TX_RATE_FPS] = (
+            '{:,.6f}'.format(total_throughput_tx_fps))
+
+        results[ResultsConstants.TX_RATE_MBPS] = (
+            '{:,.3f}'.format(total_throughput_tx_mbps))
+
+        results[ResultsConstants.TX_RATE_PERCENT] = (
+            '{:,.3f}'.format(total_throughput_tx_pct))
+
+        results[ResultsConstants.MIN_LATENCY_NS] = (
+            '{:,.3f}'.format(total_min_latency_ns))
+
+        results[ResultsConstants.MAX_LATENCY_NS] = (
+            '{:,.3f}'.format(total_max_latency_ns))
+
+        results[ResultsConstants.AVG_LATENCY_NS] = (
+            '{:,.3f}'.format(total_avg_latency_ns))
+
+        return results
+
+    def start_cont_traffic(self, traffic=None, duration=20):
+        """ Non-blocking version of 'send_cont_traffic'.
+
+        Start transmission and immediately return. Do not wait for
+        results.
+        :param traffic: Detailed "traffic" spec, i.e. IP address, VLAN tags
+        :param duration: Time to wait to receive packets (secs)
+        """
+        self._logger.info("In moongen start_cont_traffic method")
+        return NotImplementedError('Moongen continuous traffic not implemented')
+
+    def stop_cont_traffic(self):
+        # Stop continuous transmission and return results.
+        self._logger.info("In moongen stop_cont_traffic method")
+
+    def run_moongen_and_collect_results(self, test_run=1):
+        """Execute MoonGen and transform results into VSPERF format
+        :param test_run: The number of tests to run
+        """
+        # Start MoonGen and create logfile of the run
+        connect_moongen = "ssh " + self._moongen_user + "@" + \
+            self._moongen_host_ip_addr
+
+        cmd_moongen = " 'cd " + self._moongen_base_dir + \
+            "; ./build/MoonGen examples/opnfv-vsperf.lua | tee moongen_log.txt'"
+
+        cmd_start_moongen = connect_moongen + cmd_moongen
+
+        start_moongen = subprocess.Popen(cmd_start_moongen,
+                                         shell=True, stderr=subprocess.PIPE)
+
+        output, error = start_moongen.communicate()
+
+        if start_moongen.returncode:
+            logging.debug(error)
+            logging.debug(output)
+            raise RuntimeError(
+                'MOONGEN: Error starting MoonGen program at %s within %s' \
+                % (self._moongen_host_ip_addr, self._moongen_base_dir))
+
+        cmd_moongen = "mkdir -p /tmp/moongen/" + str(test_run)
+
+        moongen_create_log_dir = subprocess.Popen(cmd_moongen,
+                                                  shell=True,
+                                                  stderr=subprocess.PIPE)
+
+        output, error = moongen_create_log_dir.communicate()
+
+        if moongen_create_log_dir.returncode:
+            logging.debug(error)
+            logging.debug(output)
+            raise RuntimeError(
+                'MOONGEN: Error obtaining MoonGen log from %s within %s' \
+                % (self._moongen_host_ip_addr, self._moongen_base_dir))
+
+        cmd_moongen = " scp " + self._moongen_user + "@" + \
+            self._moongen_host_ip_addr + ":" + \
+            self._moongen_base_dir + "/moongen_log.txt /tmp/moongen/" + \
+            str(test_run) + "/moongen-run.log"
+
+        copy_moongen_log = subprocess.Popen(cmd_moongen,
+                                            shell=True,
+                                            stderr=subprocess.PIPE)
+
+        output, error = copy_moongen_log.communicate()
+
+        if copy_moongen_log.returncode:
+            logging.debug(error)
+            logging.debug(output)
+            raise RuntimeError(
+                'MOONGEN: Error obtaining MoonGen log from %s within %s' \
+                % (self._moongen_host_ip_addr, self._moongen_base_dir))
+
+        log_file = "/tmp/moongen/" + str(test_run) + "/moongen-run.log"
+
+        with open(log_file, 'r') as logfile_handle:
+            mytext = logfile_handle.read()
+
+             # REPORT results line
+             # match.group(1) = Tx frames
+             # match.group(2) = Rx frames
+             # match.group(3) = Frame loss (count)
+             # match.group(4) = Frame loss (percentage)
+             # match.group(5) = Tx Mpps
+             # match.group(6) = Rx Mpps
+            search_pattern = re.compile(
+                r'\[REPORT\]\s+total\:\s+'
+                r'Tx\s+frames\:\s+(\d+)\s+'
+                r'Rx\s+Frames\:\s+(\d+)\s+'
+                r'frame\s+loss\:\s+(\d+)\,'
+                r'\s+(\d+\.\d+|\d+)%\s+'
+                r'Tx\s+Mpps\:\s+(\d+.\d+|\d+)\s+'
+                r'Rx\s+Mpps\:\s+(\d+\.\d+|\d+)',
+                re.IGNORECASE)
+
+            results_match = search_pattern.search(mytext)
+
+            if not results_match:
+                logging.error('There was a problem parsing ' +\
+                    'MoonGen REPORT section of MoonGen log file')
+
+            moongen_results = OrderedDict()
+            moongen_results[ResultsConstants.THROUGHPUT_RX_FPS] = 0
+            moongen_results[ResultsConstants.THROUGHPUT_RX_MBPS] = 0
+            moongen_results[ResultsConstants.THROUGHPUT_RX_PERCENT] = 0
+            moongen_results[ResultsConstants.TX_RATE_FPS] = 0
+            moongen_results[ResultsConstants.TX_RATE_MBPS] = 0
+            moongen_results[ResultsConstants.TX_RATE_PERCENT] = 0
+            moongen_results[ResultsConstants.B2B_TX_COUNT] = 0
+            moongen_results[ResultsConstants.B2B_FRAMES] = 0
+            moongen_results[ResultsConstants.B2B_FRAME_LOSS_FRAMES] = 0
+            moongen_results[ResultsConstants.B2B_FRAME_LOSS_PERCENT] = 0
+
+            # find PARAMETERS line
+            # parameters_match.group(1) = Frame size
+
+            search_pattern = re.compile(
+                r'\[PARAMETERS\]\s+.*frameSize\:\s+(\d+)',
+                flags=re.IGNORECASE)
+            parameters_match = search_pattern.search(mytext)
+
+            if parameters_match:
+                frame_size = int(parameters_match.group(1))
+            else:
+                logging.error('There was a problem parsing MoonGen ' +\
+                    'PARAMETERS section of MoonGen log file')
+                frame_size = 0
+
+        if results_match and parameters_match:
+            # Assume for now 10G link speed
+            max_theoretical_mfps = (
+                (10000000000 / 8) / (frame_size + 20))
+
+            moongen_results[ResultsConstants.THROUGHPUT_RX_FPS] = (
+                float(results_match.group(6)) * 1000000)
+
+            moongen_results[ResultsConstants.THROUGHPUT_RX_MBPS] = (
+                (float(results_match.group(6)) * frame_size + 20) * 8)
+
+            moongen_results[ResultsConstants.THROUGHPUT_RX_PERCENT] = (
+                float(results_match.group(6)) * \
+                      1000000 / max_theoretical_mfps * 100)
+
+            moongen_results[ResultsConstants.TX_RATE_FPS] = (
+                float(results_match.group(5)) * 1000000)
+
+            moongen_results[ResultsConstants.TX_RATE_MBPS] = (
+                float(results_match.group(5)) * (frame_size + 20) * 8)
+
+            moongen_results[ResultsConstants.TX_RATE_PERCENT] = (
+                float(results_match.group(5)) *
+                1000000 / max_theoretical_mfps * 100)
+
+            moongen_results[ResultsConstants.B2B_TX_COUNT] = (
+                float(results_match.group(1)))
+
+            moongen_results[ResultsConstants.B2B_FRAMES] = (
+                float(results_match.group(2)))
+
+            moongen_results[ResultsConstants.B2B_FRAME_LOSS_FRAMES] = (
+                float(results_match.group(3)))
+
+            moongen_results[ResultsConstants.B2B_FRAME_LOSS_PERCENT] = (
+                float(results_match.group(4)))
+
+        return moongen_results
+
+    def send_rfc2544_throughput(self, traffic=None, duration=20,
+                                lossrate=0.0, trials=1):
+        #
+        # Send traffic per RFC2544 throughput test specifications.
+        #
+        # Send packets at a variable rate, using ``traffic``
+        # configuration, until minimum rate at which no packet loss is
+        # detected is found.
+        #
+        # :param traffic: Detailed "traffic" spec, see design docs for details
+        # :param trials: Number of trials to execute
+        # :param duration: Per iteration duration
+        # :param lossrate: Acceptable lossrate percentage
+        # :returns: dictionary of strings with following data:
+        #     - Tx Throughput (fps),
+        #     - Rx Throughput (fps),
+        #     - Tx Throughput (mbps),
+        #     - Rx Throughput (mbps),
+        #     - Tx Throughput (% linerate),
+        #     - Rx Throughput (% linerate),
+        #     - Min Latency (ns),
+        #     - Max Latency (ns),
+        #     - Avg Latency (ns)
+        #
+        self._logger.info("In moongen send_rfc2544_throughput method")
+        self._params.clear()
+        self._params['traffic'] = self.traffic_defaults.copy()
+
+        if traffic:
+            self._params['traffic'] = merge_spec(self._params['traffic'],
+                                                 traffic)
+        Moongen.create_moongen_cfg_file(self,
+                                        traffic,
+                                        duration=duration,
+                                        acceptable_loss_pct=lossrate)
+
+        total_throughput_rx_fps = 0
+        total_throughput_rx_mbps = 0
+        total_throughput_rx_pct = 0
+        total_throughput_tx_fps = 0
+        total_throughput_tx_mbps = 0
+        total_throughput_tx_pct = 0
+        total_min_latency_ns = 0
+        total_max_latency_ns = 0
+        total_avg_latency_ns = 0
+
+        for test_run in range(1, trials+1):
+            collected_results = (
+                Moongen.run_moongen_and_collect_results(self, test_run=test_run))
+
+            total_throughput_rx_fps += (
+                float(collected_results[ResultsConstants.THROUGHPUT_RX_FPS]))
+
+            total_throughput_rx_mbps += (
+                float(collected_results[ResultsConstants.THROUGHPUT_RX_MBPS]))
+
+            total_throughput_rx_pct += (
+                float(collected_results[ResultsConstants.THROUGHPUT_RX_PERCENT]))
+
+            total_throughput_tx_fps += (
+                float(collected_results[ResultsConstants.TX_RATE_FPS]))
+
+            total_throughput_tx_mbps += (
+                float(collected_results[ResultsConstants.TX_RATE_MBPS]))
+
+            total_throughput_tx_pct += (
+                float(collected_results[ResultsConstants.TX_RATE_PERCENT]))
+
+            # Latency not supported now, leaving as placeholder
+            total_min_latency_ns = 0
+            total_max_latency_ns = 0
+            total_avg_latency_ns = 0
+
+        results = OrderedDict()
+        results[ResultsConstants.THROUGHPUT_RX_FPS] = (
+            '{:,.6f}'.format(total_throughput_rx_fps / trials))
+
+        results[ResultsConstants.THROUGHPUT_RX_MBPS] = (
+            '{:,.3f}'.format(total_throughput_rx_mbps / trials))
+
+        results[ResultsConstants.THROUGHPUT_RX_PERCENT] = (
+            '{:,.3f}'.format(total_throughput_rx_pct / trials))
+
+        results[ResultsConstants.TX_RATE_FPS] = (
+            '{:,.6f}'.format(total_throughput_tx_fps / trials))
+
+        results[ResultsConstants.TX_RATE_MBPS] = (
+            '{:,.3f}'.format(total_throughput_tx_mbps / trials))
+
+        results[ResultsConstants.TX_RATE_PERCENT] = (
+            '{:,.3f}'.format(total_throughput_tx_pct / trials))
+
+        results[ResultsConstants.MIN_LATENCY_NS] = (
+            '{:,.3f}'.format(total_min_latency_ns / trials))
+
+        results[ResultsConstants.MAX_LATENCY_NS] = (
+            '{:,.3f}'.format(total_max_latency_ns / trials))
+
+        results[ResultsConstants.AVG_LATENCY_NS] = (
+            '{:,.3f}'.format(total_avg_latency_ns / trials))
+
+        return results
+
+    def start_rfc2544_throughput(self, traffic=None, trials=3, duration=20,
+                                 lossrate=0.0):
+        """Non-blocking version of 'send_rfc2544_throughput'.
+
+        Start transmission and immediately return. Do not wait for
+        results.
+        """
+        self._logger.info(
+            "MOONGEN: In moongen start_rfc2544_throughput method")
+
+    def wait_rfc2544_throughput(self):
+        """Wait for and return results of RFC2544 test.
+        """
+        self._logger.info('In moongen wait_rfc2544_throughput')
+
+    def send_rfc2544_back2back(self, traffic=None, duration=60,
+                               lossrate=0.0, trials=1):
+        """Send traffic per RFC2544 back2back test specifications.
+
+        Send packets at a fixed rate, using ``traffic``
+        configuration, for duration seconds.
+
+        :param traffic: Detailed "traffic" spec, see design docs for details
+        :param trials: Number of trials to execute
+        :param duration: Per iteration duration
+        :param lossrate: Acceptable loss percentage
+
+        :returns: Named tuple of Rx Throughput (fps), Rx Throughput (mbps),
+            Tx Rate (% linerate), Rx Rate (% linerate), Tx Count (frames),
+            Back to Back Count (frames), Frame Loss (frames), Frame Loss (%)
+        :rtype: :class:`Back2BackResult`
+        """
+        self._params.clear()
+        self._params['traffic'] = self.traffic_defaults.copy()
+
+        if traffic:
+            self._params['traffic'] = merge_spec(self._params['traffic'],
+                                                 traffic)
+
+        Moongen.create_moongen_cfg_file(self,
+                                        traffic,
+                                        duration=duration,
+                                        acceptable_loss_pct=lossrate)
+
+        results = OrderedDict()
+        results[ResultsConstants.B2B_RX_FPS] = 0
+        results[ResultsConstants.B2B_TX_FPS] = 0
+        results[ResultsConstants.B2B_RX_PERCENT] = 0
+        results[ResultsConstants.B2B_TX_PERCENT] = 0
+        results[ResultsConstants.B2B_TX_COUNT] = 0
+        results[ResultsConstants.B2B_FRAMES] = 0
+        results[ResultsConstants.B2B_FRAME_LOSS_FRAMES] = 0
+        results[ResultsConstants.B2B_FRAME_LOSS_PERCENT] = 0
+        results[ResultsConstants.SCAL_STREAM_COUNT] = 0
+        results[ResultsConstants.SCAL_STREAM_TYPE] = 0
+        results[ResultsConstants.SCAL_PRE_INSTALLED_FLOWS] = 0
+
+        for test_run in range(1, trials+1):
+            collected_results = (
+                Moongen.run_moongen_and_collect_results(self, test_run=test_run))
+
+            results[ResultsConstants.B2B_RX_FPS] += (
+                float(collected_results[ResultsConstants.THROUGHPUT_RX_FPS]))
+
+            results[ResultsConstants.B2B_RX_PERCENT] += (
+                float(collected_results[ResultsConstants.THROUGHPUT_RX_PERCENT]))
+
+            results[ResultsConstants.B2B_TX_FPS] += (
+                float(collected_results[ResultsConstants.TX_RATE_FPS]))
+
+            results[ResultsConstants.B2B_TX_PERCENT] += (
+                float(collected_results[ResultsConstants.TX_RATE_PERCENT]))
+
+            results[ResultsConstants.B2B_TX_COUNT] += (
+                int(collected_results[ResultsConstants.B2B_TX_COUNT]))
+
+            results[ResultsConstants.B2B_FRAMES] += (
+                int(collected_results[ResultsConstants.B2B_FRAMES]))
+
+            results[ResultsConstants.B2B_FRAME_LOSS_FRAMES] += (
+                int(collected_results[ResultsConstants.B2B_FRAME_LOSS_FRAMES]))
+
+            results[ResultsConstants.B2B_FRAME_LOSS_PERCENT] += (
+                int(collected_results[ResultsConstants.B2B_FRAME_LOSS_PERCENT]))
+
+        # Calculate average results
+        results[ResultsConstants.B2B_RX_FPS] = (
+            results[ResultsConstants.B2B_RX_FPS] / trials)
+
+        results[ResultsConstants.B2B_RX_PERCENT] = (
+            results[ResultsConstants.B2B_RX_PERCENT] / trials)
+
+        results[ResultsConstants.B2B_TX_FPS] = (
+            results[ResultsConstants.B2B_TX_FPS] / trials)
+
+        results[ResultsConstants.B2B_TX_PERCENT] = (
+            results[ResultsConstants.B2B_TX_PERCENT] / trials)
+
+        results[ResultsConstants.B2B_TX_COUNT] = (
+            results[ResultsConstants.B2B_TX_COUNT] / trials)
+
+        results[ResultsConstants.B2B_FRAMES] = (
+            results[ResultsConstants.B2B_FRAMES] / trials)
+
+        results[ResultsConstants.B2B_FRAME_LOSS_FRAMES] = (
+            results[ResultsConstants.B2B_FRAME_LOSS_FRAMES] / trials)
+
+        results[ResultsConstants.B2B_FRAME_LOSS_PERCENT] = (
+            results[ResultsConstants.B2B_FRAME_LOSS_PERCENT] / trials)
+
+        results[ResultsConstants.SCAL_STREAM_COUNT] = 0
+        results[ResultsConstants.SCAL_STREAM_TYPE] = 0
+        results[ResultsConstants.SCAL_PRE_INSTALLED_FLOWS] = 0
+
+        return results
+
+    def start_rfc2544_back2back(self, traffic=None, trials=1, duration=20,
+                                lossrate=0.0):
+        #
+        # Non-blocking version of 'send_rfc2544_back2back'.
+        #
+        # Start transmission and immediately return. Do not wait for results.
+        #
+        self._logger.info("In moongen start_rfc2544_back2back method")
+        return NotImplementedError(
+            'Moongen start back2back traffic not implemented')
+
+    def wait_rfc2544_back2back(self):
+        self._logger.info("In moongen wait_rfc2544_back2back method")
+        #
+        # Wait and set results of RFC2544 test.
+        #
+        return NotImplementedError(
+            'Moongen wait back2back traffic not implemented')
+
+if __name__ == "__main__":
+    pass