Find PDR using binary search

- JIRA: CSIT-72
- modify libraries for PDR search evaluation
- write robot framework keywords for PDR search
- write Performance Test Cases using PDR

Change-Id: Id06a2a7f78fe8626c221afe4178c5c30cc599762
Signed-off-by: Peter Mikus <pmikus@cisco.com>

3 files changed, 390 insertions, 10 deletions

diff --git a/resources/libraries/python/DropRateSearch.py b/resources/libraries/python/DropRateSearch.py
index 8f8e371add..1f8e5618fe 100644
--- a/resources/libraries/python/DropRateSearch.py
+++ b/resources/libraries/python/DropRateSearch.py
@@ -135,6 +135,49 @@ class DropRateSearch(object):
             self._rate_max = float(max_rate)
             self._rate_min = float(min_rate)
 
+    def set_loss_acceptance(self, loss_acceptance):
+        """Set loss acceptance treshold for PDR search.
+
+        :param loss_acceptance: Loss acceptance treshold for PDR search.
+        :type loss_acceptance: str
+        :return: nothing
+        """
+        if float(loss_acceptance) < 0:
+            raise ValueError("Loss acceptance must be higher or equal 0")
+        else:
+            self._loss_acceptance = float(loss_acceptance)
+
+    def get_loss_acceptance(self):
+        """Return configured loss acceptance treshold.
+
+        :return: Loss acceptance treshold.
+        :rtype: float
+        """
+        return self._loss_acceptance
+
+    def set_loss_acceptance_type_percentage(self):
+        """Set loss acceptance treshold type to percentage.
+
+        :return: nothing
+        """
+        self._loss_acceptance_type = LossAcceptanceType.PERCENTAGE
+
+    def set_loss_acceptance_type_frames(self):
+        """Set loss acceptance treshold type to frames.
+
+        :return: nothing
+        """
+        self._loss_acceptance_type = LossAcceptanceType.FRAMES
+
+    def loss_acceptance_type_is_percentage(self):
+        """Return true if loss acceptance treshold type is percentage,
+           false otherwise.
+
+        :return: True if loss acceptance treshold type is percentage.
+        :rtype: boolean
+        """
+        return self._loss_acceptance_type == LossAcceptanceType.PERCENTAGE
+
     def set_search_linear_step(self, step_rate):
         """Set step size for linear search.
 
diff --git a/resources/libraries/python/TrafficGenerator.py b/resources/libraries/python/TrafficGenerator.py
index 3969891cf9..5dab8b98d5 100644
--- a/resources/libraries/python/TrafficGenerator.py
+++ b/resources/libraries/python/TrafficGenerator.py
@@ -46,11 +46,16 @@ class TGDropRateSearchImpl(DropRateSearch):
             tg_instance.trex_stl_start_remote_exec(self.get_duration(),
                                                    unit_rate, frame_size,
                                                    traffic_type, False)
-
-            # TODO: getters for tg_instance and loss_acceptance_type
-            logger.trace("comparing: {} < {} ".format(tg_instance._loss,
-                                                      loss_acceptance))
-            if float(tg_instance._loss) > float(loss_acceptance):
+            loss = tg_instance.get_loss()
+            sent = tg_instance.get_sent()
+            if self.loss_acceptance_type_is_percentage():
+                loss = (float(loss) / float(sent)) * 100
+
+            # TODO: getters for tg_instance
+            logger.trace("comparing: {} < {} {}".format(loss,
+                                                        loss_acceptance,
+                                                        loss_acceptance_type))
+            if float(loss) > float(loss_acceptance):
                 return False
             else:
                 return True
@@ -73,6 +78,30 @@ class TrafficGenerator(object):
         # T-REX interface order mapping
         self._ifaces_reordered = 0
 
+    def get_loss(self):
+        """Return number of lost packets.
+
+        :return: Number of lost packets.
+        :rtype: str
+        """
+        return self._loss
+
+    def get_sent(self):
+        """Return number of sent packets.
+
+        :return: Number of sent packets.
+        :rtype: str
+        """
+        return self._sent
+
+    def get_received(self):
+        """Return number of received packets.
+
+        :return: Number of received packets.
+        :rtype: str
+        """
+        return self._received
+
     #pylint: disable=too-many-arguments, too-many-locals
     def initialize_traffic_generator(self, tg_node, tg_if1, tg_if2,
                                      dut1_node, dut1_if1, dut1_if2,
@@ -361,7 +390,7 @@ class TrafficGenerator(object):
         return self._result
 
     def no_traffic_loss_occurred(self):
-        """Fail is loss occurred in traffic run.
+        """Fail if loss occurred in traffic run.
 
         :return: nothing
         """
@@ -369,3 +398,23 @@ class TrafficGenerator(object):
             raise Exception('The traffic generation has not been issued')
         if self._loss != '0':
             raise Exception('Traffic loss occurred: {0}'.format(self._loss))
+
+    def partial_traffic_loss_accepted(self, loss_acceptance,
+                                      loss_acceptance_type):
+        """Fail if loss is higher then accepted in traffic run.
+
+        :return: nothing
+        """
+        if self._loss is None:
+            raise Exception('The traffic generation has not been issued')
+
+        if loss_acceptance_type == 'percentage':
+            loss = (float(self._loss) / float(self._sent)) * 100
+        elif loss_acceptance_type == 'frames':
+            loss = float(self._loss)
+        else:
+            raise Exception('Loss acceptance type not supported')
+
+        if loss > float(loss_acceptance):
+            raise Exception("Traffic loss {} above loss acceptance: {}".format(
+                loss, loss_acceptance))
diff --git a/resources/libraries/robot/performance.robot b/resources/libraries/robot/performance.robot
index 5c8af8ede2..6c99e1d5aa 100644
--- a/resources/libraries/robot/performance.robot
+++ b/resources/libraries/robot/performance.robot
@@ -61,6 +61,18 @@
 | | Set Suite Variable | ${10Ge_linerate_pps_9000B}
 | | Set Suite Variable | ${10Ge_linerate_pps_9004B}
 
+| Setup performance global Variables
+| | [Documentation] | Setup performance global Variables
+| | ...
+| | ... | _NOTE:_ This KW sets following suite variables:
+| | ... | - ${glob_loss_acceptance} - Loss acceptance treshold
+| | ... | - ${glob_loss_acceptance_type} - Loss acceptance treshold type
+| | ...
+| | ${glob_loss_acceptance}= | Set Variable | 0.5
+| | ${glob_loss_acceptance_type}= | Set Variable | percentage
+| | Set Suite Variable | ${glob_loss_acceptance}
+| | Set Suite Variable | ${glob_loss_acceptance_type}
+
 | 3-node circular Topology Variables Setup
 | | Append Nodes | ${nodes['TG']} | ${nodes['DUT1']} | ${nodes['DUT2']}
 | | ...          | ${nodes['TG']}
@@ -183,6 +195,7 @@
 | | Setup default startup configuration of VPP on all DUTs
 | | Update All Interface Data On All Nodes | ${nodes}
 | | Setup performance rate Variables
+| | Setup performance global Variables
 | | 3-node circular Topology Variables Setup
 | | Initialize traffic generator | ${tg} | ${tg_if1} | ${tg_if2}
 | | ...                          | ${dut1} | ${dut1_if1} | ${dut1_if2}
@@ -194,6 +207,7 @@
 | | Setup default startup configuration of VPP on all DUTs
 | | Update All Interface Data On All Nodes | ${nodes}
 | | Setup performance rate Variables
+| | Setup performance global Variables
 | | 3-node circular Topology Variables Setup with DUT interface model
 | | ... | ${nic_model}
 | | Initialize traffic generator | ${tg} | ${tg_if1} | ${tg_if2}
@@ -205,7 +219,24 @@
 | | Teardown traffic generator | ${tg}
 
 | Find NDR using linear search and pps
-| | [Documentation] | Find throughput by using RFC2544 linear search
+| | [Documentation] | Find throughput by using RFC2544 linear search with
+| | ...             | non drop rate
+| | ...
+| | ... | *Arguments:*
+| | ... | - ${framesize} - L2 Frame Size [B]. Type: integer
+| | ... | - ${start_rate} - Initial start rate [pps]. Type: float
+| | ... | - ${step_rate} - Step of linear search [pps]. Type: float
+| | ... | - ${topology_type} - Topology type. Type: string
+| | ... | - ${min_rate} - Lower limit of search [pps]. Type: float
+| | ... | - ${max_rate} - Upper limit of search [pps]. Type: float
+| | ...
+| | ... | *Return:*
+| | ... | - No value returned
+| | ...
+| | ... | *Example:*
+| | ...
+| | ... | \| Find NDR using linear search and pps \| 64 \| 5000000 \| \
+| | ... | \| 100000 \| 3-node-IPv4 \| 100000 \| 14880952
 | | [Arguments] | ${framesize} | ${start_rate} | ${step_rate}
 | | ...         | ${topology_type} | ${min_rate} | ${max_rate}
 | | ${duration}= | Set Variable | 10
@@ -221,8 +252,69 @@
 | | ...                              | ${framesize} | ${topology_type}
 | | ...                              | fail_on_loss=${False}
 
+| Find PDR using linear search and pps
+| | [Documentation] | Find throughput by using RFC2544 linear search with
+| | ...             | partial drop rate, with PDR threshold 0.5%.
+| | ...
+| | ... | *Arguments:*
+| | ... | - ${framesize} - L2 Frame Size [B]. Type: integer
+| | ... | - ${start_rate} - Initial start rate [pps]. Type: float
+| | ... | - ${step_rate} - Step of linear search [pps]. Type: float
+| | ... | - ${topology_type} - Topology type. Type: string
+| | ... | - ${min_rate} - Lower limit of search [pps]. Type: float
+| | ... | - ${max_rate} - Upper limit of search [pps]. Type: float
+| | ... | - ${loss_acceptance} - Accepted loss during search. Type: float
+| | ... | - ${loss_acceptance_type} - Percentage or frames. Type: string
+| | ...
+| | ... | *Return:*
+| | ... | - No value returned
+| | ...
+| | ... | *Example:*
+| | ...
+| | ... | \| Find PDR using linear search and pps \| 64 \| 5000000 \
+| | ... | \| 100000 \| 3-node-IPv4 \| 100000 \| 14880952 \| 0.5 \| percentage
+| | [Arguments] | ${framesize} | ${start_rate} | ${step_rate}
+| | ...         | ${topology_type} | ${min_rate} | ${max_rate}
+| | ...         | ${loss_acceptance}=0 | ${loss_acceptance_type}='frames'
+| | ${duration}= | Set Variable | 10
+| | Set Duration | ${duration}
+| | Set Search Rate Boundaries | ${max_rate} | ${min_rate}
+| | Set Search Linear Step | ${step_rate}
+| | Set Search Frame Size | ${framesize}
+| | Set Search Rate Type pps
+| | Set Loss Acceptance | ${loss_acceptance}
+| | Run Keyword If | '${loss_acceptance_type}' == 'percentage'
+| | ...            | Set Loss Acceptance Type Percentage
+| | Linear Search | ${start_rate} | ${topology_type}
+| | ${rate_per_stream}= | Verify Search Result
+| | Display result of PDR search | ${rate_per_stream} | ${framesize} | 2
+| | ...                          | ${loss_acceptance} | ${loss_acceptance_type}
+| | Traffic should pass with partial loss | ${duration} | ${rate_per_stream}pps
+| | ...                                   | ${framesize} | ${topology_type}
+| | ...                                   | ${loss_acceptance}
+| | ...                                   | ${loss_acceptance_type}
+| | ...                                   | fail_on_loss=${False}
+
 | Find NDR using binary search and pps
-| | [Documentation] | Find throughput by using RFC2544 binary search
+| | [Documentation] | Find throughput by using RFC2544 binary search with
+| | ...             | non drop rate
+| | ...
+| | ... | *Arguments:*
+| | ... | - ${framesize} - L2 Frame Size [B]. Type: integer
+| | ... | - ${binary_min} - Lower boundary of search [pps]. Type: float
+| | ... | - ${binary_max} - Upper boundary of search [pps]. Type: float
+| | ... | - ${topology_type} - Topology type. Type: string
+| | ... | - ${min_rate} - Lower limit of search [pps]. Type: float
+| | ... | - ${max_rate} - Upper limit of search [pps]. Type: float
+| | ... | - ${threshold} - Threshold to stop search [pps]. Type: integer
+| | ...
+| | ... | *Return:*
+| | ... | - No value returned
+| | ...
+| | ... | *Example:*
+| | ...
+| | ... | \| Find NDR using binary search and pps \| 64 \| 6000000 \
+| | ... | \| 12000000 \| 3-node-IPv4 \| 100000 \| 14880952 \| 50000
 | | [Arguments] | ${framesize} | ${binary_min} | ${binary_max}
 | | ...         | ${topology_type} | ${min_rate} | ${max_rate} | ${threshold}
 | | ${duration}= | Set Variable | 10
@@ -238,9 +330,71 @@
 | | ...                              | ${framesize} | ${topology_type}
 | | ...                              | fail_on_loss=${False}
 
+| Find PDR using binary search and pps
+| | [Documentation] | Find throughput by using RFC2544 binary search with
+| | ...             | partial drop rate, with PDR threshold 0.5%.
+| | ...
+| | ... | *Arguments:*
+| | ... | - ${framesize} - L2 Frame Size [B]. Type: integer
+| | ... | - ${binary_min} - Lower boundary of search [pps]. Type: float
+| | ... | - ${binary_max} - Upper boundary of search [pps]. Type: float
+| | ... | - ${topology_type} - Topology type. Type: string
+| | ... | - ${min_rate} - Lower limit of search [pps]. Type: float
+| | ... | - ${max_rate} - Upper limit of search [pps]. Type: float
+| | ... | - ${threshold} - Threshold to stop search [pps]. Type: integer
+| | ... | - ${loss_acceptance} - Accepted loss during search. Type: float
+| | ... | - ${loss_acceptance_type} - Percentage or frames. Type: string
+| | ...
+| | ... | *Return:*
+| | ... | - No value returned
+| | ...
+| | ... | *Example:*
+| | ...
+| | ... | \| Find PDR using binary search and pps \| 64 \| 6000000 \
+| | ... | \| 12000000 \| 3-node-IPv4 \| 100000 \| 14880952 \| 50000 \| 0.5 \
+| | ... | \| percentage
+| | [Arguments] | ${framesize} | ${binary_min} | ${binary_max}
+| | ...         | ${topology_type} | ${min_rate} | ${max_rate} | ${threshold}
+| | ...         | ${loss_acceptance}=0 | ${loss_acceptance_type}='frames'
+| | ${duration}= | Set Variable | 10
+| | Set Duration | ${duration}
+| | Set Search Rate Boundaries | ${max_rate} | ${min_rate}
+| | Set Search Frame Size | ${framesize}
+| | Set Search Rate Type pps
+| | Set Loss Acceptance | ${loss_acceptance}
+| | Run Keyword If | '${loss_acceptance_type}' == 'percentage'
+| | ...            | Set Loss Acceptance Type Percentage
+| | Set Binary Convergence Threshold | ${threshold}
+| | Binary Search | ${binary_min} | ${binary_max} | ${topology_type}
+| | ${rate_per_stream}= | Verify Search Result
+| | Display result of PDR search | ${rate_per_stream} | ${framesize} | 2
+| | ...                          | ${loss_acceptance} | ${loss_acceptance_type}
+| | Traffic should pass with partial loss | ${duration} | ${rate_per_stream}pps
+| | ...                                   | ${framesize} | ${topology_type}
+| | ...                                   | ${loss_acceptance}
+| | ...                                   | ${loss_acceptance_type}
+| | ...                                   | fail_on_loss=${False}
+
 | Find NDR using combined search and pps
 | | [Documentation] | Find throughput by using RFC2544 combined search
-| | ...             | (linear + binary)
+| | ...             | (linear + binary) with non drop rate
+| | ...
+| | ... | *Arguments:*
+| | ... | - ${framesize} - L2 Frame Size [B]. Type: integer
+| | ... | - ${start_rate} - Initial start rate [pps]. Type: float
+| | ... | - ${step_rate} - Step of linear search [pps]. Type: float
+| | ... | - ${topology_type} - Topology type. Type: string
+| | ... | - ${min_rate} - Lower limit of search [pps]. Type: float
+| | ... | - ${max_rate} - Upper limit of search [pps]. Type: float
+| | ... | - ${threshold} - Threshold to stop search [pps]. Type: integer
+| | ...
+| | ... | *Return:*
+| | ... | - No value returned
+| | ...
+| | ... | *Example:*
+| | ...
+| | ... | \| Find NDR using combined search and pps \| 64 \| 5000000 \
+| | ... | \| 100000 \| 3-node-IPv4 \| 100000 \| 14880952 \| 5000
 | | [Arguments] | ${framesize} | ${start_rate} | ${step_rate}
 | | ...         | ${topology_type} | ${min_rate} | ${max_rate} | ${threshold}
 | | ${duration}= | Set Variable | 10
@@ -257,9 +411,68 @@
 | | ...                              | ${framesize} | ${topology_type}
 | | ...                              | fail_on_loss=${False}
 
+| Find PDR using combined search and pps
+| | [Documentation] | Find throughput by using RFC2544 combined search
+| | ...             | (linear + binary) with partial drop rate, with PDR
+| | ...             | threshold 0.5%.
+| | ...
+| | ... | *Arguments:*
+| | ... | - ${framesize} - L2 Frame Size [B]. Type: integer
+| | ... | - ${start_rate} - Initial start rate [pps]. Type: float
+| | ... | - ${step_rate} - Step of linear search [pps]. Type: float
+| | ... | - ${topology_type} - Topology type. Type: string
+| | ... | - ${min_rate} - Lower limit of search [pps]. Type: float
+| | ... | - ${max_rate} - Upper limit of search [pps]. Type: float
+| | ... | - ${threshold} - Threshold to stop search [pps]. Type: integer
+| | ... | - ${loss_acceptance} - Accepted loss during search. Type: float
+| | ... | - ${loss_acceptance_type} - Percentage or frames. Type: string
+| | ...
+| | ... | *Return:*
+| | ... | - No value returned
+| | ...
+| | ... | *Example:*
+| | ...
+| | ... | \| Find PDR using combined search and pps \| 64 \| 5000000 \
+| | ... | \| 100000 \| 3-node-IPv4 \| 100000 \| 14880952 \| 5000 \| 0.5 \
+| | ... | \| percentage
+| | [Arguments] | ${framesize} | ${start_rate} | ${step_rate}
+| | ...         | ${topology_type} | ${min_rate} | ${max_rate} | ${threshold}
+| | ...         | ${loss_acceptance}=0 | ${loss_acceptance_type}='frames'
+| | ${duration}= | Set Variable | 10
+| | Set Duration | ${duration}
+| | Set Search Rate Boundaries | ${max_rate} | ${min_rate}
+| | Set Search Linear Step | ${step_rate}
+| | Set Search Frame Size | ${framesize}
+| | Set Search Rate Type pps
+| | Set Loss Acceptance | ${loss_acceptance}
+| | Run Keyword If | '${loss_acceptance_type}' == 'percentage'
+| | ...            | Set Loss Acceptance Type Percentage
+| | Set Binary Convergence Threshold | ${threshold}
+| | Combined Search | ${start_rate} | ${topology_type}
+| | ${rate_per_stream}= | Verify Search Result
+| | Display result of PDR search | ${rate_per_stream} | ${framesize} | 2
+| | ...                          | ${loss_acceptance} | ${loss_acceptance_type}
+| | Traffic should pass with partial loss | ${duration} | ${rate_per_stream}pps
+| | ...                                   | ${framesize} | ${topology_type}
+| | ...                                   | ${loss_acceptance}
+| | ...                                   | ${loss_acceptance_type}
+| | ...                                   | fail_on_loss=${False}
+
 | Display result of NDR search
 | | [Documentation] | Display result of NDR search in packet per seconds (total
-| | ...             | and per stream) and Gbps
+| | ...             | and per stream) and Gbps.
+| | ...
+| | ... | *Arguments:*
+| | ... | - ${rate_per_stream} - Measured rate per stream [pps]. Type: string
+| | ... | - ${framesize} - L2 Frame Size [B]. Type: integer
+| | ... | - ${nr_streams} - Total number of streams. Type: integer
+| | ...
+| | ... | *Return:*
+| | ... | - No value returned
+| | ...
+| | ... | *Example:*
+| | ...
+| | ... | \| Display result of NDR search \| 4400000 \| 64 \| 2
 | | [Arguments] | ${rate_per_stream} | ${framesize} | ${nr_streams}
 | | ${rate_total}= | Evaluate | ${rate_per_stream}*${nr_streams}
 | | ${bandwidth_total}= | Evaluate | ${rate_total}*(${framesize}+20)*8/(10**9)
@@ -267,7 +480,51 @@
 | | Set Test Message | (${nr_streams}x ${rate_per_stream} pps) | append=yes
 | | Set Test Message | FINAL_BANDWIDTH: ${bandwidth_total} Gbps | append=yes
 
+| Display result of PDR search
+| | [Documentation] | Display result of PDR search in packet per seconds (total
+| | ...             | and per stream) and Gbps.
+| | ...
+| | ... | *Arguments:*
+| | ... | - ${rate_per_stream} - Measured rate per stream [pps]. Type: string
+| | ... | - ${framesize} - L2 Frame Size [B]. Type: integer
+| | ... | - ${nr_streams} - Total number of streams. Type: integer
+| | ... | - ${loss_acceptance} - Accepted loss during search. Type: float
+| | ... | - ${loss_acceptance_type} - Percentage or frames. Type: string
+| | ...
+| | ... | *Return:*
+| | ... | - No value returned
+| | ...
+| | ... | *Example:*
+| | ...
+| | ... | \| Display result of PDR search \| 4400000 \| 64 \| 2 \| 0.5 \
+| | ... | \| percentage
+| | [Arguments] | ${rate_per_stream} | ${framesize} | ${nr_streams}
+| | ...         | ${loss_acceptance} | ${loss_acceptance_type}
+| | ${rate_total}= | Evaluate | ${rate_per_stream}*${nr_streams}
+| | ${bandwidth_total}= | Evaluate | ${rate_total}*(${framesize}+20)*8/(10**9)
+| | Set Test Message | FINAL_RATE: ${rate_total} pps
+| | Set Test Message | (${nr_streams}x ${rate_per_stream} pps) | append=yes
+| | Set Test Message | FINAL_BANDWIDTH: ${bandwidth_total} Gbps | append=yes
+| | Set Test Message | ${\n}LOSS_ACCEPTANCE: ${loss_acceptance} ${loss_acceptance_type}
+| | ...              | append=yes
+
 | Traffic should pass with no loss
+| | [Documentation] | Send traffic at specified rate. No packet loss is
+| | ...             | accepted at loss evaluation.
+| | ...
+| | ... | *Arguments:*
+| | ... | - ${duration} - Duration of traffic run [s]. Type: integer
+| | ... | - ${rate} - Rate for sending packets. Type: string
+| | ... | - ${framesize} - L2 Frame Size [B]. Type: integer
+| | ... | - ${topology_type} - Topology type. Type: string
+| | ...
+| | ... | *Return:*
+| | ... | - No value returned
+| | ...
+| | ... | *Example:*
+| | ...
+| | ... | \| Traffic should pass with no loss \| 10 \| 4.0mpps \| 64 \
+| | ... | \| 3-node-IPv4
 | | [Arguments] | ${duration} | ${rate} | ${framesize} | ${topology_type}
 | | ...         | ${fail_on_loss}=${True}
 | | Clear and show runtime counters with running traffic | ${duration}
@@ -278,6 +535,37 @@
 | | Show statistics on all DUTs
 | | Run Keyword If | ${fail_on_loss} | No traffic loss occurred
 
+| Traffic should pass with partial loss
+| | [Documentation] | Send traffic at specified rate. Partial packet loss is
+| | ...             | accepted within loss acceptance value.
+| | ...
+| | ... | *Arguments:*
+| | ... | - ${duration} - Duration of traffic run [s]. Type: integer
+| | ... | - ${rate} - Rate for sending packets. Type: string
+| | ... | - ${framesize} - L2 Frame Size [B]. Type: integer
+| | ... | - ${topology_type} - Topology type. Type: string
+| | ... | - ${loss_acceptance} - Accepted loss during search. Type: float
+| | ... | - ${loss_acceptance_type} - Percentage or frames. Type: string
+| | ...
+| | ... | *Return:*
+| | ... | - No value returned
+| | ...
+| | ... | *Example:*
+| | ...
+| | ... | \| Traffic should pass with partial loss \| 10 \| 4.0mpps \| 64 \
+| | ... | \| 3-node-IPv4 \| 0.5 \| percentage
+| | [Arguments] | ${duration} | ${rate} | ${framesize} | ${topology_type}
+| | ...         | ${loss_acceptance} | ${loss_acceptance_type}
+| | ...         | ${fail_on_loss}=${True}
+| | Clear and show runtime counters with running traffic | ${duration}
+| | ...  | ${rate} | ${framesize} | ${topology_type}
+| | Clear all counters on all DUTs
+| | Send traffic on tg | ${duration} | ${rate} | ${framesize}
+| | ...                | ${topology_type} | warmup_time=0
+| | Show statistics on all DUTs
+| | Run Keyword If | ${fail_on_loss} | Partial traffic loss accepted
+| | ...            | ${loss_acceptance} | ${loss_acceptance_type}
+
 | Clear and show runtime counters with running traffic
 | | [Arguments] | ${duration} | ${rate} | ${framesize} | ${topology_type}
 | | Send traffic on tg | -1 | ${rate} | ${framesize}