docs/report/dmm_functional_tests/overview.rst

   1 Overview
   2 ========
   3
   4 Virtual Topologies
   5 ------------------
   6
   7 CSIT DMM functional tests are executed in VM-based virtual topologies
   8 created on demand using :abbr:`VIRL (Virtual Internet Routing Lab)`
   9 simulation platform contributed by Cisco. VIRL runs on physical
  10 baremetal servers hosted by LF FD.io project.
  11
  12 All tests are executed in three-node virtual test topology shown in the
  13 figure below.
  14
  15 .. only:: latex
  16
  17     .. raw:: latex
  18
  19         \begin{figure}[H]
  20             \centering
  21                 \graphicspath{{../_tmp/src/vpp_functional_tests/}}
  22                 \includegraphics[width=0.90\textwidth]{virtual-3n-nic2nic}
  23                 \label{fig:virtual-3n-nic2nic}
  24         \end{figure}
  25
  26 .. only:: html
  27
  28     .. figure:: ../vpp_functional_tests/virtual-3n-nic2nic.svg
  29         :alt: virtual-3n-nic2nic
  30         :align: center
  31
  32 SUT1 and SUT2 are two VMs (running Ubuntu), TG is a Traffic Generator VM
  33 (running Ubuntu). SUTs run
  34 sample server-client application using the DMM libraries in Linux user-
  35 mode as a Device Under Test (DUT) within the VM. Currently TG node is
  36 not being used in DMM-CSIT. Network connectivity between SUTs and to TG
  37 is provided using virtual NICs and VMs' virtio drivers.
  38
  39 Functional Tests Coverage
  40 -------------------------
  41
  42 |csit-release| includes following DMM functionality tested in virtual VM
  43 environment:
  44
  45 +-----------------------+----------------------------------------------+
  46 | Functionality         |  Description                                 |
  47 +=======================+==============================================+
  48 | DMM basic operation   | The test case demonstrates single            |
  49 |                       | server[DUT1] and single client[DUT2]         |
  50 |                       | scenario using DMM framework and kernel      |
  51 |                       | tcp/ip stack.                                |
  52 +-----------------------+----------------------------------------------+
  53 | DMM lwip integration  |                                              |
  54 +-----------------------+----------------------------------------------+