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diff --git a/docs/report/trex_performance_tests/overview.rst b/docs/report/trex_performance_tests/overview.rst
index 802d341477..9740179df7 100644
--- a/docs/report/trex_performance_tests/overview.rst
+++ b/docs/report/trex_performance_tests/overview.rst
@@ -1,2 +1,82 @@
 Overview
 ========
+
+TREX performance test results are reported for a range of processors.
+For description of physical testbeds used for TREX performance tests
+please refer to :ref:`tested_physical_topologies`.
+
+Logical Topology
+----------------
+
+CSIT TREX performance tests are executed on physical testbeds described
+in :ref:`tested_physical_topologies`. Logical topology use 1 nic that has
+loopback connected ports. See figure below.
+
+.. only:: latex
+
+    .. raw:: latex
+
+        \begin{figure}[H]
+            \centering
+                \graphicspath{{../_tmp/src/trex_performance_tests/}}
+                \includegraphics[width=0.90\textwidth]{logical-TRex-nic2nic}
+                \label{fig:logical-TRex-nic2nic}
+        \end{figure}
+
+.. only:: html
+
+    .. figure:: logical-TRex-nic2nic.svg
+        :alt: logical-TRex-nic2nic
+        :align: center
+
+
+Performance Tests Coverage
+--------------------------
+
+Performance tests measure following metrics for tested TRex
+topologies and configurations:
+
+- Packet Throughput: measured in accordance with :rfc:`2544`, using
+  FD.io CSIT Multiple Loss Ratio search (MLRsearch), an optimized binary
+  search algorithm, producing throughput at different Packet Loss Ratio
+  (PLR) values:
+
+  - Non Drop Rate (NDR): packet throughput at PLR=0%.
+  - Partial Drop Rate (PDR): packet throughput at PLR=0.5%.
+
+- Two-way Packet Latency: measured both east-west and west-east at different
+  offered packet loads:
+
+  - 90% of discovered PDR throughput.
+  - 50% of discovered PDR throughput.
+  - 10% of discovered PDR throughput.
+  - Minimal offered load.
+
+|csit-release| includes following TRex data plane functionality
+performance tested across a range of NIC drivers and NIC models:
+
++-----------------------+----------------------------------------------+
+| Functionality         |  Description                                 |
++=======================+==============================================+
+| IPv4 Base             | IPv4 routing.                                |
++-----------------------+----------------------------------------------+
+| IPv4 Scale            | IPv4 routing with 2M entries.                |
++-----------------------+----------------------------------------------+
+| IPv6 Base             | IPv6 routing.                                |
++-----------------------+----------------------------------------------+
+| IPv6 Scale            | IPv6 routing with 2M entries.                |
++-----------------------+----------------------------------------------+
+| L2BD Scale            | L2 Bridge-Domain switching of untagged       |
+|                       | Ethernet frames.                             |
++-----------------------+----------------------------------------------+
+
+
+Performance Tests Naming
+------------------------
+
+FD.io |csit-release| follows a common structured naming convention for
+all performance and system functional tests, introduced in CSIT-17.01.
+
+The naming should be intuitive for majority of the tests. Complete
+description of FD.io CSIT test naming convention is provided on
+:ref:`csit_test_naming`.