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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 |
-+=======================+==============================================+
-| ACL (classify) | Ingress Access Control List security for L2 |
-| | Bridge-Domain MAC switching, IPv4 routing, |
-| | IPv6 routing. |
-+-----------------------+----------------------------------------------+
-| ACL (acl_plugin) | Ingress and Egress Access Control List |
-| | security in stateless and stateful mode for |
-| | L2 Bridge-Domain MAC switching, IPv4 |
-| | routing, IPv6 routing. |
-+-----------------------+----------------------------------------------+
-| ADL | ADL address allow-list and block-list |
-| | filtering for IPv4 and IPv6 routing. |
-+-----------------------+----------------------------------------------+
-| GENEVE | GENEVE tunnels for IPv4 routing. |
-+-----------------------+----------------------------------------------+
-| IPSec | IPSec tunnel and transport modes. |
-+-----------------------+----------------------------------------------+
-| IPv4 | IPv4 routing, ICMPv4. |
-+-----------------------+----------------------------------------------+
-| IPv6 | IPv4 routing, ICMPv6. |
-+-----------------------+----------------------------------------------+
-| L2BD | L2 Bridge-Domain switching for untagged |
-| | Ethernet. |
-+-----------------------+----------------------------------------------+
-| L2XC | L2 Cross-Connect switching for untagged |
-| | Ethernet. |
-+-----------------------+----------------------------------------------+
-| MACIP (acl_plugin) | Ingress Access Control List security for L2 |
-| | Bridge-Domain MAC switching based on mix |
-| | of MAC and IP address matches. |
-+-----------------------+----------------------------------------------+
-| Memif Interface | Baseline VPP memif interface tests. |
-+-----------------------+----------------------------------------------+
-| NAT44 | Network Address and Port Translation |
-| | deterministic mode and endpoint-dependent |
-| | mode tests for IPv4. |
-+-----------------------+----------------------------------------------+
-| QoS Policer Metering | Ingress packet rate metering and marking for |
-| | IPv4, IPv6. |
-+-----------------------+----------------------------------------------+
-| SRv6 | Segment routing over IPv6, base and proxy. |
-+-----------------------+----------------------------------------------+
-| Tap Interface | Baseline Linux tap interface tests. |
-+-----------------------+----------------------------------------------+
-| VLAN Tag | L2 VLAN subinterfaces. |
-+-----------------------+----------------------------------------------+
-| Vhost-user Interface | Baseline VPP vhost-user interface tests. |
-+-----------------------+----------------------------------------------+
-| VXLAN | VXLAN overlay tunneling for L2-over-IPv4 and |
-| | -over-IPv6. |
-+-----------------------+----------------------------------------------+
-
-Tests Naming
-------------
-
-|csit-release| follows a common structured naming convention for all
-performance and system functional tests.
-
-The naming should be intuitive for majority of the tests. Complete
-description of CSIT test naming convention is provided on
-:ref:`csit_test_naming`.