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T-Rex JSON Template
===================
Whenever T-Rex is publishing live data, it uses JSON notation to describe the data-object.
Each client may parse it diffrently, however this page will describe the values meaning when published by T-Rex server.
Main Fields
-----------
Each T-Rex server-published JSON object contains data divided to main fields under which the actual data lays.
These main fields are:
+-----------------------------+----------------------------------------------------+---------------------------+
| Main field | Contains | Comments |
+=============================+====================================================+===========================+
| :ref:`trex-global-field` | Must-have data on T-Rex run, | |
| | mainly regarding Tx/Rx and packet drops | |
+-----------------------------+----------------------------------------------------+---------------------------+
| :ref:`tx-gen-field` | Data indicate the quality of the transmit process. | |
| | In case histogram is zero it means that all packets| |
| | were injected in the right time. | |
+-----------------------------+----------------------------------------------------+---------------------------+
| :ref:`trex-latecny-field` | Latency reports, containing latency data on | - Generated when latency |
| | generated data and on response traffic | test is enabled (``l`` |
| | | param) |
| | | - *typo* on field key: |
+-----------------------------+----------------------------------------------------+ will be fixed on next |
| :ref:`trex-latecny-v2-field`| Extended latency information | release |
+-----------------------------+----------------------------------------------------+---------------------------+
Each of these fields contains keys for field general data (such as its name) and its actual data, which is always stored under the **"data"** key.
For example, in order to access some trex-global data, the access path would look like::
AllData -> trex-global -> data -> desired_info
Detailed explanation
--------------------
.. _trex-global-field:
trex-global field
~~~~~~~~~~~~~~~~~
+--------------------------------+-------+-----------------------------------------------------------+
| Sub-key | Type | Meaning |
+================================+=======+===========================================================+
| m_cpu_util | float | CPU utilization (0-100) |
+--------------------------------+-------+-----------------------------------------------------------+
| m_platform_factor | float | multiplier factor |
+--------------------------------+-------+-----------------------------------------------------------+
| m_tx_bps | float | total tx bit per second |
+--------------------------------+-------+-----------------------------------------------------------+
| m_rx_bps | float | total rx bit per second |
+--------------------------------+-------+-----------------------------------------------------------+
| m_tx_pps | float | total tx packet per second |
+--------------------------------+-------+-----------------------------------------------------------+
| m_tx_cps | float | total tx connection per second |
+--------------------------------+-------+-----------------------------------------------------------+
| m_tx_expected_cps | float | expected tx connection per second |
+--------------------------------+-------+-----------------------------------------------------------+
| m_tx_expected_pps | float | expected tx packet per second |
+--------------------------------+-------+-----------------------------------------------------------+
| m_tx_expected_bps | float | expected tx bit per second |
+--------------------------------+-------+-----------------------------------------------------------+
| m_rx_drop_bps | float | drop rate in bit per second |
+--------------------------------+-------+-----------------------------------------------------------+
| m_active_flows | float | active trex flows |
+--------------------------------+-------+-----------------------------------------------------------+
| m_open_flows | float | open trex flows from startup (monotonically incrementing) |
+--------------------------------+-------+-----------------------------------------------------------+
| m_total_tx_pkts | int | total tx in packets |
+--------------------------------+-------+-----------------------------------------------------------+
| m_total_rx_pkts | int | total rx in packets |
+--------------------------------+-------+-----------------------------------------------------------+
| m_total_tx_bytes | int | total tx in bytes |
+--------------------------------+-------+-----------------------------------------------------------+
| m_total_rx_bytes | int | total rx in bytes |
+--------------------------------+-------+-----------------------------------------------------------+
| opackets-# | int | output packets (per interface) |
+--------------------------------+-------+-----------------------------------------------------------+
| obytes-# | int | output bytes (per interface) |
+--------------------------------+-------+-----------------------------------------------------------+
| ipackets-# | int | input packet (per interface) |
+--------------------------------+-------+-----------------------------------------------------------+
| ibytes-# | int | input bytes (per interface) |
+--------------------------------+-------+-----------------------------------------------------------+
| ierrors-# | int | input errors (per interface) |
+--------------------------------+-------+-----------------------------------------------------------+
| oerrors-# | int | input errors (per interface) |
+--------------------------------+-------+-----------------------------------------------------------+
| m_total_tx_bps-# | float | total transmitted data in bit per second |
+--------------------------------+-------+-----------------------------------------------------------+
| unknown | int | |
+--------------------------------+-------+-----------------------------------------------------------+
| m_total_nat_learn_error [#f1]_ | int | |
+--------------------------------+-------+-----------------------------------------------------------+
| m_total_nat_active [#f2]_ | int | |
+--------------------------------+-------+-----------------------------------------------------------+
| m_total_nat_no_fid [#f2]_ | int | |
+--------------------------------+-------+-----------------------------------------------------------+
| m_total_nat_time_out [#f2]_ | int | |
+--------------------------------+-------+-----------------------------------------------------------+
| m_total_nat_open [#f2]_ | int | |
+--------------------------------+-------+-----------------------------------------------------------+
.. _tx-gen-field:
tx-gen field
~~~~~~~~~~~~~~
+-------------------+-------+-----------------------------------------------------------+
| Sub-key | Type | Meaning |
+===================+=======+===========================================================+
| realtime-hist | dict | histogram of transmission. See extended information about |
| | | histogram object under :ref:`histogram-object-fields`. |
| | | The attribute analyzed is time packet has been sent |
| | | before/after it was intended to be |
+-------------------+-------+-----------------------------------------------------------+
| unknown | int | |
+-------------------+-------+-----------------------------------------------------------+
.. _trex-latecny-field:
trex-latecny field
~~~~~~~~~~~~~~~~~~
+---------+-------+---------------------------------------------------------+
| Sub-key | Type | Meaning |
+=========+=======+=========================================================+
| avg-# | float | average latency in usec (per interface) |
+---------+-------+---------------------------------------------------------+
| max-# | float | max latency in usec from the test start (per interface) |
+---------+-------+---------------------------------------------------------+
| c-max-# | float | max in the last 1 sec window (per interface) |
+---------+-------+---------------------------------------------------------+
| error-# | float | errors in latency packets (per interface) |
+---------+-------+---------------------------------------------------------+
| unknown | int | |
+---------+-------+---------------------------------------------------------+
.. _trex-latecny-v2-field:
trex-latecny-v2 field
~~~~~~~~~~~~~~~~~~~~~
+--------------------------------------+-------+--------------------------------------+
| Sub-key | Type | Meaning |
+======================================+=======+======================================+
| cpu_util | float | rx thread cpu % (this is not trex DP |
| | | threads cpu%%) |
+--------------------------------------+-------+--------------------------------------+
| port-# | | Containing per interface |
| | dict | information. See extended |
| | | information under ``port-# -> |
| | | key_name -> sub_key`` |
+--------------------------------------+-------+--------------------------------------+
| port-#->hist | dict | histogram of latency. See extended |
| | | information about histogram object |
| | | under :ref:`histogram-object-fields`.|
+--------------------------------------+-------+--------------------------------------+
| port-#->stats | | Containing per interface |
| | dict | information. See extended |
| | | information under ``port-# -> |
| | | key_name -> sub_key`` |
+--------------------------------------+-------+--------------------------------------+
| port-#->stats->m_tx_pkt_ok | int | total of try sent packets |
+--------------------------------------+-------+--------------------------------------+
| port-#->stats->m_pkt_ok | int | total of packets sent from hardware |
+--------------------------------------+-------+--------------------------------------+
| port-#->stats->m_no_magic | int | rx error with no magic |
+--------------------------------------+-------+--------------------------------------+
| port-#->stats->m_no_id | int | rx errors with no id |
+--------------------------------------+-------+--------------------------------------+
| port-#->stats->m_seq_error | int | error in seq number |
+--------------------------------------+-------+--------------------------------------+
| port-#->stats->m_length_error | int | |
+--------------------------------------+-------+--------------------------------------+
| port-#->stats->m_rx_check | int | packets tested in rx |
+--------------------------------------+-------+--------------------------------------+
| unknown | int | |
+--------------------------------------+-------+--------------------------------------+
.. _histogram-object-fields:
Histogram object fields
~~~~~~~~~~~~~~~~~~~~~~~
The histogram object is being used in number of place throughout the JSON object.
The following section describes its fields in detail.
+-----------+-------+-----------------------------------------------------------------------------------+
| Sub-key | Type | Meaning |
+===========+=======+===================================================================================+
| min_usec | int | min attribute value in usec. pkt with latency less than this value is not counted |
+-----------+-------+-----------------------------------------------------------------------------------+
| max_usec | int | max attribute value in usec |
+-----------+-------+-----------------------------------------------------------------------------------+
| high_cnt | int | how many packets on which its attribute > min_usec |
+-----------+-------+-----------------------------------------------------------------------------------+
| cnt | int | total packets from test startup |
+-----------+-------+-----------------------------------------------------------------------------------+
| s_avg | float | average value from test startup |
+-----------+-------+-----------------------------------------------------------------------------------+
| histogram | | histogram of relevant object by the following keys: |
| | array | - key: value in usec |
| | | - val: number of packets |
+-----------+-------+-----------------------------------------------------------------------------------+
Access Examples
---------------
.. rubric:: Footnotes
.. [#f1] Available only in NAT and NAT learning operation (``learn`` and ``learn-verify`` flags)
.. [#f2] Available only in NAT operation (``learn`` flag)
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