diff --git a/dict.txt b/dict.txt
index 1f90758..8cab5d5 100644
--- a/dict.txt
+++ b/dict.txt
@@ -118,3 +118,4 @@
 watchlist
 whitebox
 whitepaper
+TRex
diff --git a/images/pipeline-test-arch.svg b/images/pipeline-test-arch.svg
new file mode 100644
index 0000000..5db51f4
--- /dev/null
+++ b/images/pipeline-test-arch.svg
@@ -0,0 +1,4 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!-- Do not edit this file with editors other than diagrams.net -->
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diff --git a/testing/pipeline.rst b/testing/pipeline.rst
index d36f17e..52071fb 100644
--- a/testing/pipeline.rst
+++ b/testing/pipeline.rst
@@ -1,2 +1,43 @@
-Pipeline Tests (PTF)
-====================
+P4 Pipeline Tests (PTF)
+=======================
+
+`PTF <https://github.com/p4lang/PTF>`_ is a Python based data plane test framework.
+It is based on unittest, which is included in the standard Python distribution.
+
+To test the P4 pipeline, we are using the following components:
+
+* PTF framework and tests
+
+  * Installs table entries to the device.
+  * Generate and verify the traffic.
+
+* Stratum: the software that process P4Runtime requests from PTF and configures the device.
+* The device under tests: can be software device like Tofino Model, or a hardware device.
+* TRex server: for the line rate test.
+
+.. image:: ../images/pipeline-test-arch.svg
+    :width: 800px
+
+Test plans
+----------
+
+See `test plans <https://github.com/stratum/fabric-tna/tree/main/ptf#the-unary-test-plan>`_ section in the fabric-TNA repository
+
+Run tests
+---------
+
+See `step to run tests <https://github.com/stratum/fabric-tna/tree/main/ptf#steps-to-run-tests-on-tofino-model-with-stratum>`_
+section in the Fabric-TNA repository.
+
+Test result
+-----------
+
+See `test result <https://github.com/stratum/fabric-tna/tree/main/ptf#test-result>`_
+section in the Fabric-TNA repository.
+
+
+Contribute new test cases
+-------------------------
+
+See `contribute new test cases <https://github.com/stratum/fabric-tna/tree/main/ptf#contribute-new-test-cases>`_
+section in the Fabric-TNA repository.