Perf: NAT44 endpoint-dependent mode - udp, part I

- continuation of https://gerrit.fd.io/r/c/csit/+/26898 as there was
reached limit of changes (1000)

Jira: CSIT-1711

- udp synthetic profiles w/o data packets
- udp cps perf tests, phase I (no special "search cps" KW)

Part I means that we are using MRR tests to collect traffic data
until there is ready new CPS test type with corresponding algorithm.

Change-Id: I0d30feb9ecf1d0bff937152656f8eb422f831378
Signed-off-by: Jan Gelety <jgelety@cisco.com>

2 files changed, 168 insertions, 78 deletions

diff --git a/resources/libraries/robot/performance/performance_limits.robot b/resources/libraries/robot/performance/performance_limits.robot
index 82688ac9c6..332ed9368b 100644
--- a/resources/libraries/robot/performance/performance_limits.robot
+++ b/resources/libraries/robot/performance/performance_limits.robot
@@ -1,4 +1,4 @@
-# Copyright (c) 2019 Cisco and/or its affiliates.
+# Copyright (c) 2020 Cisco and/or its affiliates.
 # 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:
@@ -24,19 +24,48 @@
 | |
 | | ... | *Arguments:*
 | | ... | - frame_size - Framesize. Type: integer or string
+| | ... | - overhead - Overhead in bytes; default value: ${0}. Type: integer
 | |
 | | ... | *Returns:*
-| | ... | Average frame size. Type: float
+| | ... | Average frame size including overhead. Type: float
 | |
 | | ... | *Example:*
 | |
 | | ... | \| Get Average Frame Size \| IMIX_v4_1 \|
 | |
-| | [Arguments] | ${frame_size}
+| | [Arguments] | ${frame_size} | ${overhead}=${0}
 | |
-| | Return From Keyword If | '${frame_size}' == 'IMIX_v4_1' | ${353.83333}
-| | ${frame_size} = | Convert To Number | ${frame_size}
-| | Return From Keyword | ${frame_size}
+| | ${frame_size} = | Run Keyword If | '${frame_size}' == 'IMIX_v4_1'
+| | ... | Set Variable | ${353.83333}
+| | ... | ELSE
+| | ... | Convert To Number | ${frame_size}
+| | ${avg_frame_size} = | Evaluate | ${frame_size} + ${overhead}
+| | Return From Keyword | ${avg_frame_size}
+
+| Get Maximum Frame Size
+| | [Documentation]
+| | ... | Framesize can be either integer in case of a single packet
+| | ... | in stream, or set of packets in case of IMIX type or simmilar.
+| |
+| | ... | *Arguments:*
+| | ... | - frame_size - Framesize. Type: integer or string
+| | ... | - overhead - Overhead in bytes; default value: ${0}. Type: integer
+| |
+| | ... | *Returns:*
+| | ... | Maximum frame size including overhead. Type: float
+| |
+| | ... | *Example:*
+| |
+| | ... | \| Get Maximum Frame Size \| IMIX_v4_1 \|
+| |
+| | [Arguments] | ${frame_size} | ${overhead}=${0}
+| |
+| | ${frame_size} = | Run Keyword If | '${frame_size}' == 'IMIX_v4_1'
+| | ... | Set Variable | ${1518}
+| | ... | ELSE
+| | ... | Convert To Number | ${frame_size}
+| | ${max_frame_size} = | Evaluate | ${frame_size} + ${overhead}
+| | Return From Keyword | ${max_frame_size}
 
 | Set Max Rate And Jumbo
 | | [Documentation]
@@ -61,8 +90,9 @@
 | |
 | | ... | *Test (or broader scope) variables read:*
 | | ... | - nic_name - Name of bottleneck NIC. Type: string
-| | ... | - overhead - Overhead in bytes. Default: 0. Type: integer
-| | ... | - frame_size - L2 Frame Size [B] or IMIX string. Type: int or str
+| | ... | - overhead - Overhead in bytes; default value: 0. Type: integer
+| | ... | - frame_size - L2 Frame Size [B] or IMIX string. Type: integer or
+| | ... | string
 | |
 | | ... | *Test variables set:*
 | | ... | - max_rate - Calculated unidirectional maximal transmit rate [pps].
@@ -72,7 +102,7 @@
 | |
 | | ... | *Example:*
 | |
-| | ... | \| Set test Variable \| \${frame_size} \| IMIX_v4_1 \|
+| | ... | \| Set Test Variable \| \${frame_size} \| IMIX_v4_1 \|
 | | ... | \| Set Max Rate And Jumbo \|
 | |
 | | # Negative overhead is possible, if DUT-DUT traffic is less encapsulated
@@ -84,16 +114,40 @@
 | | ... | ${NIC_NAME_TO_PPS_LIMIT} | ${nic_name}
 | | ${bps_limit} = | Get From Dictionary
 | | ... | ${NIC_NAME_TO_BPS_LIMIT} | ${nic_name}
-| | ${avg_size} = | Get Average Frame Size | ${frame_size}
-| | ${max_size} = | Set Variable If | '${frame_size}' == 'IMIX_v4_1'
-| | ... | ${1518} | ${frame_size}
 | | # swo := size_with_overhead
-| | ${avg_swo} = | Evaluate | ${avg_size} + ${overhead}
-| | ${max_swo} = | Evaluate | ${max_size} + ${overhead}
-| | ${jumbo} = | Set Variable If | ${max_swo} < 1522
-| | ... | ${False} | ${True}
+| | ${avg_swo} = | Get Average Frame Size | ${frame_size} | ${overhead}
 | | ${rate} = | Evaluate | ${bps_limit} / ((${avg_swo} + 20.0) * 8)
 | | ${max_rate} = | Set Variable If | ${rate} > ${pps_limit}
 | | ... | ${pps_limit} | ${rate}
-| | Set Test Variable | \${jumbo}
 | | Set Test Variable | \${max_rate}
+| | Set Jumbo
+
+| Set Jumbo
+| | [Documentation]
+| | ... | For jumbo frames detection, the maximal packet size is relevant,
+| | ... | encapsulation overhead (if any) has effect.
+| |
+| | ... | This keyword computes jumbo boolean (some suites need that for
+| | ... | configuration decisions).
+| | ... | To streamline suite autogeneration, both input and output values
+| | ... | are communicated as test (or broader scope) variables,
+| | ... | instead of explicit arguments and return values.
+| |
+| | ... | *Test (or broader scope) variables read:*
+| | ... | - overhead - Overhead in bytes; default value: 0. Type: integer
+| | ... | - frame_size - L2 Frame Size [B] or IMIX string. Type: integer or
+| | ... | string
+| |
+| | ... | *Test variables set:*
+| | ... | - jumbo - Jumbo boolean, true if jumbo packet support has to be
+| | ... | enabled. Type: boolean
+| |
+| | ... | *Example:*
+| |
+| | ... | \| Set Jumnbo \|
+| |
+| | ${overhead} = | Set Variable If | ${overhead} >= 0 | ${overhead} | ${0}
+| | ${max_swo} = | Get Maximum Frame Size | ${frame_size} | ${overhead}
+| | ${jumbo} = | Set Variable If | ${max_swo} < 1522
+| | ... | ${False} | ${True}
+| | Set Test Variable | \${jumbo}
diff --git a/resources/libraries/robot/performance/performance_utils.robot b/resources/libraries/robot/performance/performance_utils.robot
index dcabbb9fac..84113709cf 100644
--- a/resources/libraries/robot/performance/performance_utils.robot
+++ b/resources/libraries/robot/performance/performance_utils.robot
@@ -50,7 +50,8 @@
 | | ... | *Test (or broader scope) variables read:*
 | | ... | - traffic_profile - Name of module defining traffc for measurements.
 | | ... | Type: string
-| | ... | - frame_size - L2 Frame Size [B] or IMIX string. Type: int or str
+| | ... | - frame_size - L2 Frame Size [B] or IMIX string. Type: integer or
+| | ... | string
 | | ... | - max_rate - Calculated unidirectional maximal transmit rate [pps].
 | | ... | Type: float
 | |
@@ -59,12 +60,16 @@
 | | ... | - final_relative_width - Maximal width multiple of upper. Type: float
 | | ... | - final_trial_duration - Duration of final trials [s]. Type: float
 | | ... | - initial_trial_duration - Duration of initial trials [s]. Type: float
-| | ... | - intermediate phases - Number of intermediate phases [1]. Type: int
+| | ... | - intermediate phases - Number of intermediate phases [1].
+| | ... | Type: integer
 | | ... | - timeout - Fail if search duration is longer [s]. Type: float
-| | ... | - doublings - How many doublings to do when expanding [1]. Type: int
+| | ... | - doublings - How many doublings to do when expanding [1].
+| | ... | Type: integer
 | | ... | - traffic_directions - Bi- (2) or uni- (1) directional traffic.
-| | ... | Type: int
+| | ... | Type: integer
 | | ... | - latency_duration - Duration for latency-specific trials. Type: float
+| | ... | - latency - False to disable latency measurement; default value: True.
+| | ... | Type: boolean
 | |
 | | ... | *Example:*
 | |
@@ -78,6 +83,7 @@
 | | ... | ${number_of_intermediate_phases}=${2} | ${timeout}=${720.0}
 | | ... | ${doublings}=${2} | ${traffic_directions}=${2}
 | | ... | ${latency_duration}=${PERF_TRIAL_LATENCY_DURATION}
+| | ... | ${latency}=${True}
 | |
 | | # Latency measurements will need more than 9000 pps.
 | | ${result} = | Perform optimized ndrpdr search | ${frame_size}
@@ -86,6 +92,7 @@
 | | ... | ${final_trial_duration} | ${initial_trial_duration}
 | | ... | ${number_of_intermediate_phases} | timeout=${timeout}
 | | ... | doublings=${doublings} | traffic_directions=${traffic_directions}
+| | ... | latency=${latency}
 | | Display result of NDRPDR search | ${result}
 | | Check NDRPDR interval validity | ${result.pdr_interval}
 | | ... | ${packet_loss_ratio}
@@ -95,18 +102,22 @@
 | | ${ndr_sum}= | Set Variable | ${result.ndr_interval.measured_low.target_tr}
 | | ${ndr_per_stream}= | Evaluate | ${ndr_sum} / float(${traffic_directions})
 | | ${rate}= | Evaluate | 0.9 * ${pdr_per_stream}
-| | Measure and show latency at specified rate | Latency at 90% PDR:
+| | Run Keyword If | ${latency}
+| | ... | Measure and show latency at specified rate | Latency at 90% PDR:
 | | ... | ${latency_duration} | ${rate} | ${framesize}
 | | ... | ${traffic_profile} | ${traffic_directions}
 | | ${rate}= | Evaluate | 0.5 * ${pdr_per_stream}
-| | Measure and show latency at specified rate | Latency at 50% PDR:
+| | Run Keyword If | ${latency}
+| | ... | Measure and show latency at specified rate | Latency at 50% PDR:
 | | ... | ${latency_duration} | ${rate} | ${framesize}
 | | ... | ${traffic_profile} | ${traffic_directions}
 | | ${rate}= | Evaluate | 0.1 * ${pdr_per_stream}
-| | Measure and show latency at specified rate | Latency at 10% PDR:
+| | Run Keyword If | ${latency}
+| | ... | Measure and show latency at specified rate | Latency at 10% PDR:
 | | ... | ${latency_duration} | ${rate} | ${framesize}
 | | ... | ${traffic_profile} | ${traffic_directions}
-| | Measure and show latency at specified rate | Latency at 0% PDR:
+| | Run Keyword If | ${latency}
+| | ... | Measure and show latency at specified rate | Latency at 0% PDR:
 | | ... | ${latency_duration} | ${0} | ${framesize}
 | | ... | ${traffic_profile} | ${traffic_directions}
 | | # Finally, trials with runtime and other stats.
@@ -128,7 +139,8 @@
 | | ... | *Test (or broader scope) variables read:*
 | | ... | - traffic_profile - Name of module defining traffc for measurements.
 | | ... | Type: string
-| | ... | - frame_size - L2 Frame Size [B] or IMIX string. Type: int or str
+| | ... | - frame_size - L2 Frame Size [B] or IMIX string. Type: integer or
+| | ... | string
 | | ... | - max_rate - Calculated unidirectional maximal transmit rate [pps].
 | | ... | Type: float
 | |
@@ -137,11 +149,15 @@
 | | ... | - final_relative_width - Maximal width multiple of upper. Type: float
 | | ... | - final_trial_duration - Duration of final trials [s]. Type: float
 | | ... | - initial_trial_duration - Duration of initial trials [s]. Type: float
-| | ... | - intermediate phases - Number of intermediate phases [1]. Type: int
+| | ... | - intermediate phases - Number of intermediate phases [1].
+| | ... | Type: integer
 | | ... | - timeout - Fail if search duration is longer [s]. Type: float
-| | ... | - doublings - How many doublings to do when expanding [1]. Type: int
+| | ... | - doublings - How many doublings to do when expanding [1].
+| | ... | Type: integer
 | | ... | - traffic_directions - Bi- (2) or uni- (1) directional traffic.
-| | ... | Type: int
+| | ... | Type: integer
+| | ... | - latency - True to enable latency measurement; default value: False.
+| | ... | Type: boolean
 | |
 | | ... | *Returns:*
 | | ... | - Lower bound for bi-directional throughput at given PLR. Type: float
@@ -156,7 +172,7 @@
 | | ... | ${final_relative_width}=${0.001} | ${final_trial_duration}=${10.0}
 | | ... | ${initial_trial_duration}=${1.0}
 | | ... | ${number_of_intermediate_phases}=${1} | ${timeout}=${720.0}
-| | ... | ${doublings}=${2} | ${traffic_directions}=${2}
+| | ... | ${doublings}=${2} | ${traffic_directions}=${2} | ${latency}=${False}
 | |
 | | ${result} = | Perform optimized ndrpdr search | ${frame_size}
 | | ... | ${traffic_profile} | ${10000} | ${max_rate}
@@ -164,6 +180,7 @@
 | | ... | ${final_trial_duration} | ${initial_trial_duration}
 | | ... | ${number_of_intermediate_phases} | timeout=${timeout}
 | | ... | doublings=${doublings} | traffic_directions=${traffic_directions}
+| | ... | latency=${latency}
 | | Check NDRPDR interval validity | ${result.pdr_interval}
 | | ... | ${packet_loss_ratio}
 | | Return From Keyword | ${result.pdr_interval.measured_low.target_tr}
@@ -181,7 +198,8 @@
 | | ... | *Test (or broader scope) variables read:*
 | | ... | - traffic_profile - Name of module defining traffc for measurements.
 | | ... | Type: string
-| | ... | - frame_size - L2 Frame Size [B] or IMIX string. Type: int or str
+| | ... | - frame_size - L2 Frame Size [B] or IMIX string. Type: integer or
+| | ... | string
 | | ... | - max_rate - Calculated unidirectional maximal transmit rate [pps].
 | | ... | Type: float
 | |
@@ -189,7 +207,9 @@
 | | ... | - packet_loss_ratio - Accepted loss during search. Type: float
 | | ... | - timeout - Stop when search duration is longer [s]. Type: float
 | | ... | - traffic_directions - Bi- (2) or uni- (1) directional traffic.
-| | ... | Type: int
+| | ... | Type: integer
+| | ... | - latency - True to enable latency measurement; default value: False.
+| | ... | Type: boolean
 | |
 | | ... | *Example:*
 | |
@@ -197,13 +217,13 @@
 | | ... | \| \${2} \|
 | |
 | | [Arguments] | ${packet_loss_ratio}=${1e-7} | ${timeout}=${1800.0}
-| | ... | ${traffic_directions}=${2}
+| | ... | ${traffic_directions}=${2} | ${latency}=${False}
 | |
 | | ${min_rate} = | Set Variable | ${10000}
 | | ${average} | ${stdev} = | Perform soak search | ${frame_size}
 | | ... | ${traffic_profile} | ${min_rate} | ${max_rate}
 | | ... | ${packet_loss_ratio} | timeout=${timeout}
-| | ... | traffic_directions=${traffic_directions}
+| | ... | traffic_directions=${traffic_directions} | latency=${latency}
 | | ${lower} | ${upper} = | Display result of soak search
 | | ... | ${average} | ${stdev}
 | | Should Not Be True | 1.1 * ${traffic_directions} * ${min_rate} > ${lower}
@@ -229,7 +249,7 @@
 | | ... | *Example:*
 | |
 | | ... | \| Display single bound \| NDR lower bound \| \${12345.67} \
-| | ... | \| \${64} \| show_latency=\${EMPTY} \|
+| | ... | \| \${64} \| latency=\${EMPTY} \|
 | |
 | | [Arguments] | ${text} | ${rate_total} | ${frame_size} | ${latency}=${EMPTY}
 | |
@@ -271,7 +291,8 @@
 | | ... | The given result should contain latency data as well.
 | |
 | | ... | *Test (or broader scope) variables read:*
-| | ... | - frame_size - L2 Frame Size [B] or IMIX string. Type: int or str
+| | ... | - frame_size - L2 Frame Size [B] or IMIX string. Type: integer or
+| | ... | string
 | | ... | *Arguments:*
 | | ... | - result - Measured result data per stream [pps]. Type: NdrPdrResult
 | |
@@ -304,7 +325,8 @@
 | | ... | (Throughput * (L2 Frame Size + IPG) * 8)
 | |
 | | ... | *Test (or broader scope) variables read:*
-| | ... | - frame_size - L2 Frame Size [B] or IMIX string. Type: int or str
+| | ... | - frame_size - L2 Frame Size [B] or IMIX string. Type: integer or
+| | ... | string
 | | ... | *Arguments:*
 | | ... | - avg - Estimated average critical load [pps]. Type: float
 | | ... | - stdev - Standard deviation of critical load [pps]. Type: float
@@ -360,36 +382,36 @@
 | | ... | Send traffic at maximum rate.
 | |
 | | ... | *Test (or broader scope) variables read:*
-| | ... | - traffic_profile - Name of module defining traffc for measurements.
+| | ... | - traffic_profile - Name of module defining traffic for measurements.
 | | ... | Type: string
-| | ... | - frame_size - L2 Frame Size [B] or IMIX string. Type: int or str
+| | ... | - frame_size - L2 Frame Size [B] or IMIX string. Type: integer or
+| | ... | string
 | | ... | - max_rate - Calculated unidirectional maximal transmit rate [pps].
 | | ... | Type: float
 | |
 | | ... | *Arguments:*
-| | ... | - trial_duration - Duration of single trial [s].
-| | ... | Type: float
-| | ... | - fail_no_traffic - Whether to fail on zero receive count.
-| | ... | Type: boolean
+| | ... | - trial_duration - Duration of single trial [s]. Type: float
+| | ... | - fail_no_traffic - Whether to fail on zero receive count;
+| | ... | default value: True. Type: boolean
 | | ... | - trial_multiplicity - How many trials in this measurement.
-| | ... | Type: int
-| | ... | - traffic_directions - Bi- (2) or uni- (1) directional traffic.
-| | ... | Type: int
-| | ... | - tx_port - TX port of TG, default 0.
-| | ... | Type: integer
-| | ... | - rx_port - RX port of TG, default 1.
 | | ... | Type: integer
+| | ... | - traffic_directions - Bi- (2) or uni- (1) directional traffic;
+| | ... | default value: 2. Type: integer
+| | ... | - tx_port - TX port of TG; default value: 0. Type: integer
+| | ... | - rx_port - RX port of TG; default value: 1. Type: integer
+| | ... | - latency - True to enable latency measurement; default value: False.
+| | ... | Type: boolean
 | |
 | | ... | *Example:*
 | |
-| | ... | \| Traffic should pass with maximum rate \| \${1} \| \${10.0} \
-| | ... | \| \${False} \| \${2} \| \${0} \| \${1} \|
+| | ... | \| Traffic should pass with maximum rate \| \${1} \| \${False} \
+| | ... | \| \${10.0} \| \${2} \| \${0} \| \${1} \| \${True} \|
 | |
 | | [Arguments] | ${trial_duration}=${trial_duration}
 | | ... | ${fail_no_traffic}=${True}
 | | ... | ${trial_multiplicity}=${trial_multiplicity}
 | | ... | ${traffic_directions}=${2} | ${tx_port}=${0} | ${rx_port}=${1}
-| | ... | ${latency}=${True}
+| | ... | ${latency}=${False}
 | |
 | | ${results}= | Send traffic at specified rate
 | | ... | ${trial_duration} | ${max_rate} | ${frame_size}
@@ -411,35 +433,39 @@
 | | ... | - trial_duration - Duration of single trial [s]. Type: float
 | | ... | - rate - Target aggregate transmit rate [pps] / Connections per second
 | | ... | (CPS) for UDP/TCP flows. Type: float
-| | ... | - frame_size - L2 Frame Size [B]. Type: integer/string
+| | ... | - frame_size - L2 Frame Size [B]. Type: integer or string
 | | ... | - traffic_profile - Name of module defining traffc for measurements.
 | | ... | Type: string
 | | ... | - trial_multiplicity - How many trials in this measurement.
-| | ... | Type: int
-| | ... | - traffic_directions - Bi- (2) or uni- (1) directional traffic.
-| | ... | Type: int
-| | ... | - tx_port - TX port of TG, default 0.
 | | ... | Type: integer
-| | ... | - rx_port - RX port of TG, default 1.
+| | ... | - traffic_directions - Bi- (2) or uni- (1) directional traffic.
 | | ... | Type: integer
-| | ... | - extended_debug- True to enable extended debug.
+| | ... | - tx_port - TX port of TG; default value: 0. Type: integer
+| | ... | - rx_port - RX port of TG; default value: 1. Type: integer
+| | ... | - extended_debug - True to enable extended debug.
+| | ... | Type: boolean
+| | ... | - latency - True to enable latency measurement; default value: False.
 | | ... | Type: boolean
 | |
 | | ... | *Example:*
 | |
 | | ... | \| Send traffic at specified rate \| \${1.0} \| ${4000000.0} \
 | | ... | \| \${64} \| 3-node-IPv4 \| \${10} \| \${2} \| \${0} \| \${1} \
-| | ... | \${False} \|
+| | ... | \| ${False} \| ${True} \|
 | |
 | | [Arguments] | ${trial_duration} | ${rate} | ${frame_size}
 | | ... | ${traffic_profile} | ${trial_multiplicity}=${trial_multiplicity}
 | | ... | ${traffic_directions}=${2} | ${tx_port}=${0} | ${rx_port}=${1}
-| | ... | ${extended_debug}=${extended_debug} | ${latency}=${True}
+| | ... | ${extended_debug}=${extended_debug} | ${latency}=${False}
 | |
 | | Set Test Variable | ${extended_debug}
-| | Clear and show runtime counters with running traffic | ${trial_duration}
-| | ... | ${rate} | ${frame_size} | ${traffic_profile}
-| | ... | ${traffic_directions} | ${tx_port} | ${rx_port}
+| | # Following setting of test variables is needed as
+| | # "Clear and show runtime counters with running traffic" has been moved to
+| | # pre_stats actions.
+| | Set Test Variable | ${rate}
+| | Set Test Variable | ${traffic_directions}
+| | Set Test Variable | ${tx_port}
+| | Set Test Variable | ${rx_port}
 | | FOR | ${action} | IN | @{pre_stats}
 | | | Run Keyword | Additional Statistics Action For ${action}
 | | END
@@ -473,15 +499,15 @@
 | | ... | - rate - Rate [pps] for sending packets in case of T-Rex stateless
 | | ... | mode or multiplier of profile CPS in case of T-Rex astf mode.
 | | ... | Type: float
-| | ... | - frame_size - L2 Frame Size [B]. Type: integer/string
+| | ... | - frame_size - L2 Frame Size [B]. Type: integer or string
 | | ... | - traffic_profile - Name of module defining traffic for measurements.
 | | ... | Type: string
 | | ... | - traffic_directions - Bi- (2) or uni- (1) directional traffic.
-| | ... | Type: int
-| | ... | - tx_port - TX port of TG, default 0. Type: integer
-| | ... | - rx_port - RX port of TG, default 1. Type: integer
+| | ... | Type: integer
+| | ... | - tx_port - TX port of TG; default value: 0. Type: integer
+| | ... | - rx_port - RX port of TG; default value: 1. Type: integer
 | | ... | - safe_rate - To apply if rate is below this, as latency pps is fixed.
-| | ... | In pps, type int.
+| | ... | In pps. Type: integer.
 | |
 | | ... | *Example:*
 | |
@@ -514,13 +540,13 @@
 | | ... | - rate - Rate [pps] for sending packets in case of T-Rex stateless
 | | ... | mode or multiplier of profile CPS in case of T-Rex astf mode.
 | | ... | Type: float
-| | ... | - frame_size - L2 Frame Size [B] or IMIX_v4_1. Type: integer/string
+| | ... | - frame_size - L2 Frame Size [B] or IMIX_v4_1. Type: integer or string
 | | ... | - traffic_profile - Name of module defining traffc for measurements.
 | | ... | Type: string
 | | ... | - traffic_directions - Bi- (2) or uni- (1) directional traffic.
-| | ... | Type: int
-| | ... | - tx_port - TX port of TG, default 0. Type: integer
-| | ... | - rx_port - RX port of TG, default 1. Type: integer
+| | ... | Type: integer
+| | ... | - tx_port - TX port of TG; default value: 0. Type: integer
+| | ... | - rx_port - RX port of TG, default value: 1. Type: integer
 | |
 | | ... | *Example:*
 | |
@@ -553,15 +579,16 @@
 | | ... | *Test (or broader scope) variables read:*
 | | ... | - traffic_profile - Name of module defining traffc for measurements.
 | | ... | Type: string
-| | ... | - frame_size - L2 Frame Size [B] or IMIX string. Type: int or str
+| | ... | - frame_size - L2 Frame Size [B] or IMIX string. Type: integer or
+| | ... | string
 | | ... | *Arguments:*
 | | ... | - rate - Rate [pps] for sending packets in case of T-Rex stateless
 | | ... | mode or multiplier of profile CPS in case of T-Rex astf mode.
 | | ... | Type: float
 | | ... | - traffic_directions - Bi- (2) or uni- (1) directional traffic.
-| | ... | Type: int
-| | ... | - tx_port - TX port of TG, default 0. Type: integer
-| | ... | - rx_port - RX port of TG, default 1. Type: integer
+| | ... | Type: integer
+| | ... | - tx_port - TX port of TG; default value: 0. Type: integer
+| | ... | - rx_port - RX port of TG; default value: 1. Type: integer
 | |
 | | ... | *Example:*
 | |
@@ -647,4 +674,13 @@
 | | ... | Additional Statistics Action for bash command "perf stat".
 | |
 | | Run Keyword If | ${extended_debug}==${True}
-| | ... | Perf Stat On All DUTs | ${nodes}
\ No newline at end of file
+| | ... | Perf Stat On All DUTs | ${nodes}
+
+| Additional Statistics Action For vpp-clear-show-runtime-with-traffic
+| | [Documentation]
+| | ... | Additional Statistics Action for clear and show runtime counters with
+| | ... | running traffic.
+| |
+| | Clear and show runtime counters with running traffic
+| | ... | ${trial_duration} | ${rate} | ${frame_size} | ${traffic_profile}
+| | ... | ${traffic_directions} | ${tx_port} | ${rx_port}