X-Git-Url: https://gerrit.fd.io/r/gitweb?a=blobdiff_plain;f=docs%2Freport%2Fvpp_device_tests%2Foverview.rst;h=fb9f68374ae1662280a73d65145ff98a9080fd35;hb=HEAD;hp=a53e3f49715f2644ec90f3f097b132c44bc455d0;hpb=2940a1320ed51266855b15efe539046adb6f53ad;p=csit.git

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-Overview
-========
-
-Virtual Topologies
-------------------
-
-CSIT VPP Device tests are executed in Physical containerized topologies
-created on demand using set of scripts hosted and developed under CSIT
-repository. It runs on physical baremetal servers hosted by LF FD.io project.
-Based on the packet path thru SUT Containers, three distinct logical topology
-types are used for VPP DUT data plane testing:
-
-#. vfNIC-to-vfNIC switching topologies.
-#. vfNIC-to-vhost-user switching topologies.
-#. vfNIC-to-memif switching topologies.
-
-vfNIC-to-vfNIC Switching
-~~~~~~~~~~~~~~~~~~~~~~~~
-
-The simplest physical topology for software data plane application like
-VPP is vfNIC-to-vfNIC switching. Tested virtual topologies for 2-Node testbeds
-are shown in figures below.
-
-.. only:: latex
-
-    .. raw:: latex
-
-        \begin{figure}[H]
-            \centering
-                \graphicspath{{../_tmp/src/vpp_device_tests/}}
-                \includegraphics[width=0.90\textwidth]{vf-2n-nic2nic}
-                \label{fig:vf-2n-nic2nic}
-        \end{figure}
-
-.. only:: html
-
-    .. figure:: ../vpp_device_tests/vf-2n-nic2nic.svg
-        :alt: vf-2n-nic2nic
-        :align: center
-
-SUT1 is Docker Container (running Ubuntu, depending on the test suite), TG is
-a Traffic Generator (running Ubuntu Container). SUTs run VPP
-SW application in Linux user-mode as a Device Under Test (DUT) within
-the container. TG runs Scapy SW application as a packet Traffic Generator.
-Network connectivity between SUTs and to TG is provided using virtual function
-of physical NICs.
-
-Virtual topologies are created on-demand whenever a verification job is
-started (e.g. triggered by the gerrit patch submission) and destroyed
-upon completion of all functional tests. Each node is a container running on
-physical server. During the test execution, all nodes are reachable thru
-the Management (not shown above for clarity).
-
-vfNIC-to-vhost-user Switching
-~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
-
-vfNIC-to-vhost-user switching topology test cases require VPP DUT to communicate
-with Virtual Machine (VM) over Vhost-user virtual interfaces. VM is created on
-SUT1 for the duration of these particular test cases only. Virtual test topology
-with VM is shown in the figure below.
-
-.. only:: latex
-
-    .. raw:: latex
-
-        \begin{figure}[H]
-            \centering
-                \graphicspath{{../_tmp/src/vpp_device_tests/}}
-                \includegraphics[width=0.90\textwidth]{vf-2n-nic2vhost}
-                \label{fig:vf-2n-nic2vhost}
-        \end{figure}
-
-.. only:: html
-
-    .. figure:: ../vpp_device_tests/vf-2n-nic2vhost.svg
-        :alt: vf-2n-nic2vhost
-        :align: center
-
-vfNIC-to-memif Switching
-~~~~~~~~~~~~~~~~~~~~~~~~
-
-vfNIC-to-memif switching topology test cases require VPP DUT to communicate
-with another Docker Container over memif interfaces. Container is created for
-the duration of these particular test cases only and it is running the same VPP
-version as running on DUT. Virtual test topology with Memif is shown in
-the figure below.
-
-.. only:: latex
-
-    .. raw:: latex
-
-        \begin{figure}[H]
-            \centering
-                \graphicspath{{../_tmp/src/vpp_device_tests/}}
-                \includegraphics[width=0.90\textwidth]{vf-2n-nic2memif}
-                \label{fig:vf-2n-nic2memif}
-        \end{figure}
-
-.. only:: html
-
-    .. figure:: ../vpp_device_tests/vf-2n-nic2memif.svg
-        :alt: vf-2n-nic2memif
-        :align: center
-
-Functional Tests Coverage
--------------------------
-
-|csit-release| includes following VPP functionality tested in VPP Device
-environment:
-
-+-----------------------+----------------------------------------------+
-| Functionality         |  Description                                 |
-+=======================+==============================================+
-| IPv4                  | IPv4 routing, ICMPv4.                        |
-+-----------------------+----------------------------------------------+
-| IPv6                  | IPv4 routing, ICMPv6.                        |
-+-----------------------+----------------------------------------------+
-| L2BD                  | L2 Bridge-Domain switching for untagged      |
-|                       | Ethernet.                                    |
-+-----------------------+----------------------------------------------+
-| L2XC                  | L2 Cross-Connect switching for untagged      |
-|                       | Ethernet.                                    |
-+-----------------------+----------------------------------------------+
-| Vhost-user Interface  | Baseline VPP vhost-user interface tests.     |
-+-----------------------+----------------------------------------------+
-| Memif Interface       | Baseline VPP memif interface tests.          |
-+-----------------------+----------------------------------------------+
-
-Tests Naming
-------------
-
-|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 CSIT test naming convention is provided on
-:ref:`csit_test_naming`.