bugfix: Harmonize test/trial RFC2544 terminology

VSPERF framework was updated to follow RFC2544 definition
of 'test' and 'trial' terms. Test parameter 'rfc2544_trials'
was replaced by new parameter 'rfc2544_tests'.
Both code and documentation were updated to reflect
these changes.

JIRA: VSPERF-300

Change-Id: I144a28359fd06394f1f87ef324458bafd5aad45f
Signed-off-by: Martin Klozik <martinx.klozik@intel.com>
Reviewed-by: Maryam Tahhan <maryam.tahhan@intel.com>
Reviewed-by: Al Morton <acmorton@att.com>
Reviewed-by: Christian Trautman <ctrautma@redhat.com>
Reviewed-by: <bmichalo@redhat.com>

10 files changed, 79 insertions, 70 deletions

diff --git a/tools/pkt_gen/dummy/dummy.py b/tools/pkt_gen/dummy/dummy.py
index d3d79974..3324824c 100755
--- a/tools/pkt_gen/dummy/dummy.py
+++ b/tools/pkt_gen/dummy/dummy.py
@@ -146,8 +146,8 @@ class Dummy(trafficgen.ITrafficGenerator):
         results = get_user_traffic(
             'continuous',
             '%dmpps, multistream %s, duration %d' % (traffic['frame_rate'],
-                                                    traffic['multistream'],
-                                                    duration), traffic_,
+                                                     traffic['multistream'],
+                                                     duration), traffic_,
             ('frames tx', 'frames rx', 'tx rate %', 'rx rate %', 'min latency',
              'max latency', 'avg latency', 'frameloss %'))
 
@@ -169,7 +169,7 @@ class Dummy(trafficgen.ITrafficGenerator):
         result[ResultsConstants.FRAME_LOSS_PERCENT] = float(results[7])
         return result
 
-    def send_rfc2544_throughput(self, traffic=None, trials=3, duration=20,
+    def send_rfc2544_throughput(self, traffic=None, tests=1, duration=20,
                                 lossrate=0.0):
         """
         Send traffic per RFC2544 throughput test specifications.
@@ -182,8 +182,8 @@ class Dummy(trafficgen.ITrafficGenerator):
 
         results = get_user_traffic(
             'throughput',
-            '%d trials, %d seconds iterations, %f packet loss, multistream '
-            '%s' % (trials, duration, lossrate, traffic['multistream']),
+            '%d tests, %d seconds iterations, %f packet loss, multistream '
+            '%s' % (tests, duration, lossrate, traffic['multistream']),
             traffic_,
             ('frames tx', 'frames rx', 'tx rate %', 'rx rate %', 'min latency',
              'max latency', 'avg latency', 'frameloss %'))
diff --git a/tools/pkt_gen/ixia/ixia.py b/tools/pkt_gen/ixia/ixia.py
index ae5da6d2..cd14a2a7 100755
--- a/tools/pkt_gen/ixia/ixia.py
+++ b/tools/pkt_gen/ixia/ixia.py
@@ -38,9 +38,9 @@ import tkinter
 import logging
 import os
 
+from collections import OrderedDict
 from tools.pkt_gen import trafficgen
 from conf import settings
-from collections import OrderedDict
 from core.results.results_constants import ResultsConstants
 
 _ROOT_DIR = os.path.dirname(os.path.realpath(__file__))
@@ -252,13 +252,13 @@ class Ixia(trafficgen.ITrafficGenerator):
         """
         return self.run_tcl('stopTraffic')
 
-    def send_rfc2544_throughput(self, traffic=None, trials=3, duration=20, lossrate=0.0):
+    def send_rfc2544_throughput(self, traffic=None, tests=1, duration=20, lossrate=0.0):
         """See ITrafficGenerator for description
         """
         params = {}
 
         params['config'] = {
-            'trials': trials,
+            'tests': tests,
             'duration': duration,
             'lossrate': lossrate,
             'multipleStreams': traffic['multistream'],
diff --git a/tools/pkt_gen/ixia/pass_fail.tcl b/tools/pkt_gen/ixia/pass_fail.tcl
index acb4443f..79b7f10d 100755
--- a/tools/pkt_gen/ixia/pass_fail.tcl
+++ b/tools/pkt_gen/ixia/pass_fail.tcl
@@ -675,7 +675,10 @@ proc rfcThroughputTest { testSpec trafficSpec } {
 
     # testSpec
 
-    set numTrials               [dict get $testSpec trials]  ;# we don't use this yet
+    # RFC2544 to IXIA terminology mapping (it affects Ixia configuration below):
+    # Test    => Trial
+    # Trial   => Iteration
+    set numTrials               [dict get $testSpec tests]  ;# we don't use this yet
     set duration                [dict get $testSpec duration]
     set lossRate                [dict get $testSpec lossrate]
     set multipleStream          [dict get $testSpec multipleStreams]  ;# we don't use this yet
diff --git a/tools/pkt_gen/ixnet/ixnet.py b/tools/pkt_gen/ixnet/ixnet.py
index 928b5a6e..5e4ae569 100755
--- a/tools/pkt_gen/ixnet/ixnet.py
+++ b/tools/pkt_gen/ixnet/ixnet.py
@@ -253,15 +253,15 @@ class IxNet(trafficgen.ITrafficGenerator):
         """
         return self._wait_result()
 
-    def send_rfc2544_throughput(self, traffic=None, trials=3, duration=20,
+    def send_rfc2544_throughput(self, traffic=None, tests=1, duration=20,
                                 lossrate=0.0):
         """See ITrafficGenerator for description
         """
-        self.start_rfc2544_throughput(traffic, trials, duration, lossrate)
+        self.start_rfc2544_throughput(traffic, tests, duration, lossrate)
 
         return self.wait_rfc2544_throughput()
 
-    def start_rfc2544_throughput(self, traffic=None, trials=3, duration=20,
+    def start_rfc2544_throughput(self, traffic=None, tests=1, duration=20,
                                  lossrate=0.0):
         """Start transmission.
         """
@@ -270,7 +270,7 @@ class IxNet(trafficgen.ITrafficGenerator):
 
         self._params['config'] = {
             'binary': True,
-            'trials': trials,
+            'tests': tests,
             'duration': duration,
             'lossrate': lossrate,
             'multipleStreams': traffic['multistream'],
@@ -387,18 +387,18 @@ class IxNet(trafficgen.ITrafficGenerator):
         # the results file
         return parse_ixnet_rfc_results(parse_result_string(output[0]))
 
-    def send_rfc2544_back2back(self, traffic=None, trials=50, duration=2,
+    def send_rfc2544_back2back(self, traffic=None, tests=1, duration=2,
                                lossrate=0.0):
         """See ITrafficGenerator for description
         """
         # NOTE 2 seconds is the recommended duration for a back 2 back
         # test in RFC2544. 50 trials is the recommended number from the
         # RFC also.
-        self.start_rfc2544_back2back(traffic, trials, duration, lossrate)
+        self.start_rfc2544_back2back(traffic, tests, duration, lossrate)
 
         return self.wait_rfc2544_back2back()
 
-    def start_rfc2544_back2back(self, traffic=None, trials=50, duration=2,
+    def start_rfc2544_back2back(self, traffic=None, tests=1, duration=2,
                                 lossrate=0.0):
         """Start transmission.
         """
@@ -407,7 +407,7 @@ class IxNet(trafficgen.ITrafficGenerator):
 
         self._params['config'] = {
             'binary': True,
-            'trials': trials,
+            'tests': tests,
             'duration': duration,
             'lossrate': lossrate,
             'multipleStreams': traffic['multistream'],
diff --git a/tools/pkt_gen/ixnet/ixnetrfc2544.tcl b/tools/pkt_gen/ixnet/ixnetrfc2544.tcl
index 233db040..e70ca874 100644
--- a/tools/pkt_gen/ixnet/ixnetrfc2544.tcl
+++ b/tools/pkt_gen/ixnet/ixnetrfc2544.tcl
@@ -83,13 +83,16 @@ proc startRfc2544Test { testSpec trafficSpec } {
 
     set duration                [dict get $testSpec duration]
 
+    # RFC2544 to IXIA terminology mapping (it affects Ixia configuration inside this script):
+    # Test    => Trial
+    # Trial   => Iteration
     if {$binary} {
-        set numTrials           [dict get $testSpec trials]
+        set numTests            [dict get $testSpec tests]
         set frameRate           100
         set tolerance           [dict get $testSpec lossrate]
         set loadType            binary
     } else {
-        set numTrials           1
+        set numTests            1
         set frameRate           [dict get $testSpec framerate]
         set tolerance           0.0
         set loadType            custom
@@ -7778,7 +7781,7 @@ proc startRfc2544Test { testSpec trafficSpec } {
          -framesize $frameSize \
          -reportTputRateUnit mbps \
          -duration $duration \
-         -numtrials $numTrials \
+         -numtrials $numTests \
          -trafficType constantLoading \
          -burstSize 1 \
          -framesPerBurstGap 1 \
@@ -7951,7 +7954,7 @@ proc startRfc2544Test { testSpec trafficSpec } {
          -rfc2889ordering noOrdering \
          -floodedFramesEnabled False \
          -duration $duration \
-         -numtrials $numTrials \
+         -numtrials $numTests \
          -trafficType constantLoading \
          -burstSize 1 \
          -framesPerBurstGap 1 \
diff --git a/tools/pkt_gen/ixnet/ixnetrfc2544v2.tcl b/tools/pkt_gen/ixnet/ixnetrfc2544v2.tcl
index 0bdba9cd..539c5a5b 100755
--- a/tools/pkt_gen/ixnet/ixnetrfc2544v2.tcl
+++ b/tools/pkt_gen/ixnet/ixnetrfc2544v2.tcl
@@ -83,13 +83,16 @@ proc startRfc2544Test { testSpec trafficSpec } {
 
     set duration                [dict get $testSpec duration]
 
+    # RFC2544 to IXIA terminology mapping (it affects Ixia configuration inside this script):
+    # Test    => Trial
+    # Trial   => Iteration
     if {$binary} {
-        set numTrials           [dict get $testSpec trials]
+        set numTests            [dict get $testSpec tests]
         set frameRate           100
         set tolerance           [dict get $testSpec lossrate]
         set loadType            binary
     } else {
-        set numTrials           1
+        set numTests            1
         set frameRate           [dict get $testSpec framerate]
         set tolerance           0.0
         set loadType            custom
@@ -3218,7 +3221,7 @@ proc startRfc2544Test { testSpec trafficSpec } {
          -framesize $frameSize \
          -reportTputRateUnit mbps \
          -duration $duration \
-         -numtrials $numTrials \
+         -numtrials $numTests \
          -trafficType constantLoading \
          -burstSize 1 \
          -framesPerBurstGap 1 \
@@ -3391,7 +3394,7 @@ proc startRfc2544Test { testSpec trafficSpec } {
          -rfc2889ordering noOrdering \
          -floodedFramesEnabled False \
          -duration $duration \
-         -numtrials $numTrials \
+         -numtrials $numTests \
          -trafficType constantLoading \
          -burstSize 1 \
          -framesPerBurstGap 1 \
diff --git a/tools/pkt_gen/moongen/moongen.py b/tools/pkt_gen/moongen/moongen.py
index efd8e004..47f288a4 100644
--- a/tools/pkt_gen/moongen/moongen.py
+++ b/tools/pkt_gen/moongen/moongen.py
@@ -513,7 +513,7 @@ class Moongen(ITrafficGenerator):
         return moongen_results
 
     def send_rfc2544_throughput(self, traffic=None, duration=20,
-                                lossrate=0.0, trials=1):
+                                lossrate=0.0, tests=1):
         #
         # Send traffic per RFC2544 throughput test specifications.
         #
@@ -522,7 +522,7 @@ class Moongen(ITrafficGenerator):
         # detected is found.
         #
         # :param traffic: Detailed "traffic" spec, see design docs for details
-        # :param trials: Number of trials to execute
+        # :param tests: Number of tests to execute
         # :param duration: Per iteration duration
         # :param lossrate: Acceptable lossrate percentage
         # :returns: dictionary of strings with following data:
@@ -558,7 +558,7 @@ class Moongen(ITrafficGenerator):
         total_max_latency_ns = 0
         total_avg_latency_ns = 0
 
-        for test_run in range(1, trials+1):
+        for test_run in range(1, tests+1):
             collected_results = (
                 Moongen.run_moongen_and_collect_results(self, test_run=test_run))
 
@@ -587,35 +587,35 @@ class Moongen(ITrafficGenerator):
 
         results = OrderedDict()
         results[ResultsConstants.THROUGHPUT_RX_FPS] = (
-            '{:.6f}'.format(total_throughput_rx_fps / trials))
+            '{:.6f}'.format(total_throughput_rx_fps / tests))
 
         results[ResultsConstants.THROUGHPUT_RX_MBPS] = (
-            '{:.3f}'.format(total_throughput_rx_mbps / trials))
+            '{:.3f}'.format(total_throughput_rx_mbps / tests))
 
         results[ResultsConstants.THROUGHPUT_RX_PERCENT] = (
-            '{:.3f}'.format(total_throughput_rx_pct / trials))
+            '{:.3f}'.format(total_throughput_rx_pct / tests))
 
         results[ResultsConstants.TX_RATE_FPS] = (
-            '{:.6f}'.format(total_throughput_tx_fps / trials))
+            '{:.6f}'.format(total_throughput_tx_fps / tests))
 
         results[ResultsConstants.TX_RATE_MBPS] = (
-            '{:.3f}'.format(total_throughput_tx_mbps / trials))
+            '{:.3f}'.format(total_throughput_tx_mbps / tests))
 
         results[ResultsConstants.TX_RATE_PERCENT] = (
-            '{:.3f}'.format(total_throughput_tx_pct / trials))
+            '{:.3f}'.format(total_throughput_tx_pct / tests))
 
         results[ResultsConstants.MIN_LATENCY_NS] = (
-            '{:.3f}'.format(total_min_latency_ns / trials))
+            '{:.3f}'.format(total_min_latency_ns / tests))
 
         results[ResultsConstants.MAX_LATENCY_NS] = (
-            '{:.3f}'.format(total_max_latency_ns / trials))
+            '{:.3f}'.format(total_max_latency_ns / tests))
 
         results[ResultsConstants.AVG_LATENCY_NS] = (
-            '{:.3f}'.format(total_avg_latency_ns / trials))
+            '{:.3f}'.format(total_avg_latency_ns / tests))
 
         return results
 
-    def start_rfc2544_throughput(self, traffic=None, trials=3, duration=20,
+    def start_rfc2544_throughput(self, traffic=None, tests=1, duration=20,
                                  lossrate=0.0):
         """Non-blocking version of 'send_rfc2544_throughput'.
 
@@ -631,14 +631,14 @@ class Moongen(ITrafficGenerator):
         self._logger.info('In moongen wait_rfc2544_throughput')
 
     def send_rfc2544_back2back(self, traffic=None, duration=60,
-                               lossrate=0.0, trials=1):
+                               lossrate=0.0, tests=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 tests: Number of tests to execute
         :param duration: Per iteration duration
         :param lossrate: Acceptable loss percentage
 
@@ -672,7 +672,7 @@ class Moongen(ITrafficGenerator):
         results[ResultsConstants.SCAL_STREAM_TYPE] = 0
         results[ResultsConstants.SCAL_PRE_INSTALLED_FLOWS] = 0
 
-        for test_run in range(1, trials+1):
+        for test_run in range(1, tests+1):
             collected_results = (
                 Moongen.run_moongen_and_collect_results(self, test_run=test_run))
 
@@ -702,28 +702,28 @@ class Moongen(ITrafficGenerator):
 
         # Calculate average results
         results[ResultsConstants.B2B_RX_FPS] = (
-            results[ResultsConstants.B2B_RX_FPS] / trials)
+            results[ResultsConstants.B2B_RX_FPS] / tests)
 
         results[ResultsConstants.B2B_RX_PERCENT] = (
-            results[ResultsConstants.B2B_RX_PERCENT] / trials)
+            results[ResultsConstants.B2B_RX_PERCENT] / tests)
 
         results[ResultsConstants.B2B_TX_FPS] = (
-            results[ResultsConstants.B2B_TX_FPS] / trials)
+            results[ResultsConstants.B2B_TX_FPS] / tests)
 
         results[ResultsConstants.B2B_TX_PERCENT] = (
-            results[ResultsConstants.B2B_TX_PERCENT] / trials)
+            results[ResultsConstants.B2B_TX_PERCENT] / tests)
 
         results[ResultsConstants.B2B_TX_COUNT] = (
-            results[ResultsConstants.B2B_TX_COUNT] / trials)
+            results[ResultsConstants.B2B_TX_COUNT] / tests)
 
         results[ResultsConstants.B2B_FRAMES] = (
-            results[ResultsConstants.B2B_FRAMES] / trials)
+            results[ResultsConstants.B2B_FRAMES] / tests)
 
         results[ResultsConstants.B2B_FRAME_LOSS_FRAMES] = (
-            results[ResultsConstants.B2B_FRAME_LOSS_FRAMES] / trials)
+            results[ResultsConstants.B2B_FRAME_LOSS_FRAMES] / tests)
 
         results[ResultsConstants.B2B_FRAME_LOSS_PERCENT] = (
-            results[ResultsConstants.B2B_FRAME_LOSS_PERCENT] / trials)
+            results[ResultsConstants.B2B_FRAME_LOSS_PERCENT] / tests)
 
         results[ResultsConstants.SCAL_STREAM_COUNT] = 0
         results[ResultsConstants.SCAL_STREAM_TYPE] = 0
@@ -731,7 +731,7 @@ class Moongen(ITrafficGenerator):
 
         return results
 
-    def start_rfc2544_back2back(self, traffic=None, trials=1, duration=20,
+    def start_rfc2544_back2back(self, traffic=None, tests=1, duration=20,
                                 lossrate=0.0):
         #
         # Non-blocking version of 'send_rfc2544_back2back'.
diff --git a/tools/pkt_gen/testcenter/testcenter.py b/tools/pkt_gen/testcenter/testcenter.py
index a1f38d8b..c242269a 100644
--- a/tools/pkt_gen/testcenter/testcenter.py
+++ b/tools/pkt_gen/testcenter/testcenter.py
@@ -211,7 +211,7 @@ class TestCenter(trafficgen.ITrafficGenerator):
 
         return self.get_rfc2544_results(filec)
 
-    def send_rfc2544_throughput(self, traffic=None, trials=3, duration=20,
+    def send_rfc2544_throughput(self, traffic=None, tests=1, duration=20,
                                 lossrate=0.0):
         """
         Send traffic per RFC2544 throughput test specifications.
@@ -243,7 +243,7 @@ class TestCenter(trafficgen.ITrafficGenerator):
 
         return self.get_rfc2544_results(filec)
 
-    def send_rfc2544_back2back(self, traffic=None, trials=1, duration=20,
+    def send_rfc2544_back2back(self, traffic=None, tests=1, duration=20,
                                lossrate=0.0):
         """
         Send traffic per RFC2544 BacktoBack test specifications.
diff --git a/tools/pkt_gen/trafficgen/trafficgen.py b/tools/pkt_gen/trafficgen/trafficgen.py
index 3953bbb1..fb40cd92 100755
--- a/tools/pkt_gen/trafficgen/trafficgen.py
+++ b/tools/pkt_gen/trafficgen/trafficgen.py
@@ -133,7 +133,7 @@ class ITrafficGenerator(object):
         """
         raise NotImplementedError('Please call an implementation.')
 
-    def send_rfc2544_throughput(self, traffic=None, trials=3, duration=20,
+    def send_rfc2544_throughput(self, traffic=None, tests=1, duration=20,
                                 lossrate=0.0):
         """Send traffic per RFC2544 throughput test specifications.
 
@@ -142,7 +142,7 @@ class ITrafficGenerator(object):
         detected is found.
 
         :param traffic: Detailed "traffic" spec, see design docs for details
-        :param trials: Number of trials to execute
+        :param tests: Number of tests to execute
         :param duration: Per iteration duration
         :param lossrate: Acceptable lossrate percentage
         :returns: dictionary of strings with following data:
@@ -158,7 +158,7 @@ class ITrafficGenerator(object):
         """
         raise NotImplementedError('Please call an implementation.')
 
-    def start_rfc2544_throughput(self, traffic=None, trials=3, duration=20,
+    def start_rfc2544_throughput(self, traffic=None, tests=1, duration=20,
                                  lossrate=0.0):
         """Non-blocking version of 'send_rfc2544_throughput'.
 
@@ -172,7 +172,7 @@ class ITrafficGenerator(object):
         """
         raise NotImplementedError('Please call an implementation.')
 
-    def send_rfc2544_back2back(self, traffic=None, trials=1, duration=20,
+    def send_rfc2544_back2back(self, traffic=None, tests=1, duration=20,
                                lossrate=0.0):
         """Send traffic per RFC2544 back2back test specifications.
 
@@ -180,7 +180,7 @@ class ITrafficGenerator(object):
         configuration, for duration seconds.
 
         :param traffic: Detailed "traffic" spec, see design docs for details
-        :param trials: Number of trials to execute
+        :param tests: Number of tests to execute
         :param duration: Per iteration duration
         :param lossrate: Acceptable loss percentage
 
@@ -191,7 +191,7 @@ class ITrafficGenerator(object):
         """
         raise NotImplementedError('Please call an implementation.')
 
-    def start_rfc2544_back2back(self, traffic=None, trials=1, duration=20,
+    def start_rfc2544_back2back(self, traffic=None, tests=1, duration=20,
                                 lossrate=0.0):
         """Non-blocking version of 'send_rfc2544_back2back'.
 
diff --git a/tools/pkt_gen/xena/xena.py b/tools/pkt_gen/xena/xena.py
index 67e9984f..449ef5b4 100755
--- a/tools/pkt_gen/xena/xena.py
+++ b/tools/pkt_gen/xena/xena.py
@@ -275,10 +275,10 @@ class Xena(ITrafficGenerator):
 
         return result_dict
 
-    def _setup_json_config(self, trials, loss_rate, testtype=None):
+    def _setup_json_config(self, tests, loss_rate, testtype=None):
         """
         Create a 2bUsed json file that will be used for xena2544.exe execution.
-        :param trials: Number of trials
+        :param tests: Number of tests
         :param loss_rate: The acceptable loss rate as float
         :param testtype: Either '2544_b2b' or '2544_throughput' as string
         :return: None
@@ -305,7 +305,7 @@ class Xena(ITrafficGenerator):
             if testtype == '2544_throughput':
                 j_file.set_test_options_tput(
                     packet_sizes=self._params['traffic']['l2']['framesize'],
-                    iterations=trials, loss_rate=loss_rate,
+                    iterations=tests, loss_rate=loss_rate,
                     duration=self._duration, micro_tpld=True if self._params[
                         'traffic']['l2']['framesize'] == 64 else False)
                 j_file.enable_throughput_test()
@@ -313,7 +313,7 @@ class Xena(ITrafficGenerator):
             elif testtype == '2544_b2b':
                 j_file.set_test_options_back2back(
                     packet_sizes=self._params['traffic']['l2']['framesize'],
-                    iterations=trials, duration=self._duration,
+                    iterations=tests, duration=self._duration,
                     startvalue=self._params['traffic']['frame_rate'],
                     endvalue=self._params['traffic']['frame_rate'],
                     micro_tpld=True if self._params[
@@ -590,7 +590,7 @@ class Xena(ITrafficGenerator):
         """
         return self._stop_api_traffic()
 
-    def send_rfc2544_throughput(self, traffic=None, trials=3, duration=20,
+    def send_rfc2544_throughput(self, traffic=None, tests=1, duration=20,
                                 lossrate=0.0):
         """Send traffic per RFC2544 throughput test specifications.
 
@@ -603,14 +603,14 @@ class Xena(ITrafficGenerator):
         if traffic:
             self._params['traffic'] = merge_spec(self._params['traffic'],
                                                  traffic)
-        self._setup_json_config(trials, lossrate, '2544_throughput')
+        self._setup_json_config(tests, lossrate, '2544_throughput')
         self._start_xena_2544()
         self._wait_xena_2544_complete()
 
         root = ET.parse(r'./tools/pkt_gen/xena/xena2544-report.xml').getroot()
         return Xena._create_throughput_result(root)
 
-    def start_rfc2544_throughput(self, traffic=None, trials=3, duration=20,
+    def start_rfc2544_throughput(self, traffic=None, tests=1, duration=20,
                                  lossrate=0.0):
         """Non-blocking version of 'send_rfc2544_throughput'.
 
@@ -622,7 +622,7 @@ class Xena(ITrafficGenerator):
         if traffic:
             self._params['traffic'] = merge_spec(self._params['traffic'],
                                                  traffic)
-        self._setup_json_config(trials, lossrate, '2544_throughput')
+        self._setup_json_config(tests, lossrate, '2544_throughput')
         self._start_xena_2544()
 
     def wait_rfc2544_throughput(self):
@@ -634,7 +634,7 @@ class Xena(ITrafficGenerator):
         root = ET.parse(r'./tools/pkt_gen/xena/xena2544-report.xml').getroot()
         return Xena._create_throughput_result(root)
 
-    def send_rfc2544_back2back(self, traffic=None, trials=1, duration=20,
+    def send_rfc2544_back2back(self, traffic=None, tests=1, duration=20,
                                lossrate=0.0):
         """Send traffic per RFC2544 back2back test specifications.
 
@@ -647,13 +647,13 @@ class Xena(ITrafficGenerator):
         if traffic:
             self._params['traffic'] = merge_spec(self._params['traffic'],
                                                  traffic)
-        self._setup_json_config(trials, lossrate, '2544_b2b')
+        self._setup_json_config(tests, lossrate, '2544_b2b')
         self._start_xena_2544()
         self._wait_xena_2544_complete()
         root = ET.parse(r'./tools/pkt_gen/xena/xena2544-report.xml').getroot()
         return Xena._create_throughput_result(root)
 
-    def start_rfc2544_back2back(self, traffic=None, trials=1, duration=20,
+    def start_rfc2544_back2back(self, traffic=None, tests=1, duration=20,
                                 lossrate=0.0):
         """Non-blocking version of 'send_rfc2544_back2back'.
 
@@ -665,7 +665,7 @@ class Xena(ITrafficGenerator):
         if traffic:
             self._params['traffic'] = merge_spec(self._params['traffic'],
                                                  traffic)
-        self._setup_json_config(trials, lossrate, '2544_b2b')
+        self._setup_json_config(tests, lossrate, '2544_b2b')
         self._start_xena_2544()
 
     def wait_rfc2544_back2back(self):