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-rw-r--r--docs/report/nsh_sfc_functional_tests/overview.rst142
1 files changed, 55 insertions, 87 deletions
diff --git a/docs/report/nsh_sfc_functional_tests/overview.rst b/docs/report/nsh_sfc_functional_tests/overview.rst
index a3010f0ae6..c9156fb22d 100644
--- a/docs/report/nsh_sfc_functional_tests/overview.rst
+++ b/docs/report/nsh_sfc_functional_tests/overview.rst
@@ -1,56 +1,44 @@
Overview
========
-Tested Virtual Topologies
--------------------------
-
-CSIT NSH_SFC functional tests are executed on virtualized topologies created using
-:abbr:`VIRL (Virtual Internet Routing Lab)` simulation platform contributed by
-Cisco. VIRL runs on physical baremetal servers hosted by LF FD.io project.
-Majority of the tests are executed in the three node logical test topology -
-Traffic Generator (TG) node and two Systems Under Test (SUT) nodes connected in
-a loop. Some tests use two node logical test topology - TG node and SUT1 node.
-Both logical test topologies are shown in the figures below.::
-
- +------------------------+ +------------------------+
- | | | |
- | +------------------+ | | +------------------+ |
- | | <-----------------> | |
- | | | | | | | |
- | | DUT1 <-----------------> DUT2 | |
- | +--^--^------------+ | | +------------^--^--+ |
- | | | | | | | |
- | | | SUT1 | | SUT2 | | |
- +------------------------+ +------------------------+
- | | | |
- | | | |
- | | +-----------+ | |
- | +---------------> <---------------+ |
- | | TG | |
- +------------------> <------------------+
- +-----------+
-
- +------------------------+
- | |
- | +------------------+ |
- +---------------> <--------------+
- | | | | | |
- | |------------> DUT1 <-----------+ |
- | | | +------------------+ | | |
- | | | | | |
- | | | SUT1 | | |
- | | +------------------------+ | |
- | | | |
- | | | |
- | | +-----------+ | |
- | +---------------> <---------------+ |
- | | TG | |
- +------------------> <------------------+
- +-----------+
+Virtual Topologies
+------------------
+
+CSIT NSH_SFC functional tests are executed on virtualized topologies created
+using :abbr:`VIRL (Virtual Internet Routing Lab)` simulation platform
+contributed by Cisco. VIRL runs on physical baremetal servers hosted by LF FD.io
+project. Based on the packet path thru server SUTs, one logical
+topology type is used for VPP DUT data plane testing:
+
+#. NIC-to-NIC switching topologies.
+
+NIC-to-NIC Switching
+~~~~~~~~~~~~~~~~~~~~
+
+The simplest logical topology for software data plane application like
+VPP is NIC-to-NIC switching. Tested topology for the 3-Node
+testbeds is shown in the figure below.
+
+.. only:: latex
+
+ .. raw:: latex
+
+ \begin{figure}[H]
+ \centering
+ \graphicspath{{../_tmp/src/vpp_performance_tests/}}
+ \includegraphics[width=0.90\textwidth]{logical-3n-nic2nic}
+ \label{fig:logical-3n-nic2nic}
+ \end{figure}
+
+.. only:: html
+
+ .. figure:: ../vpp_performance_tests/logical-3n-nic2nic.svg
+ :alt: logical-3n-nic2nic
+ :align: center
SUT1 and SUT2 are two VMs (Ubuntu or Centos, depending on the test suite), TG
-is a Traffic Generator (TG, another Ubuntu VM). SUTs run VPP SW application in
-Linux user-mode as a Device Under Test (DUT) within the VM. TG runs Scapy SW
+is a Traffic Generator (TG, another Ubuntu VM). SUTs run NSH_SFC SW application
+in Linux user-mode as a Device Under Test (DUT) within the VM. TG runs Scapy SW
application as a packet Traffic Generator. Logical connectivity between SUTs
and to TG is provided using virtual NICs using VMs' virtio driver.
@@ -62,34 +50,6 @@ test execution, all nodes are reachable thru the Management network connected
to every node via dedicated virtual NICs and virtual links (not shown above
for clarity).
-For the test cases that require DUT (VPP) to communicate with VM over the
-vhost-user interfaces, a nested VM is created on SUT1 and/or SUT2 for the
-duration of these particular test cases only. DUT (VPP) test topology with VM
-is shown in the figure below including the applicable packet flow thru the VM
-(marked in the figure with ``***``).::
-
- +------------------------+ +------------------------+
- | +----------+ | | +----------+ |
- | | VM | | | | VM | |
- | | ****** | | | | ****** | |
- | +--^----^--+ | | +--^----^--+ |
- | *| |* | | *| |* |
- | +------v----v------+ | | +------v----v------+ |
- | | * * |**|***********|**| * * | |
- | | ***** *******<----------------->******* ***** | |
- | | * DUT1 | | | | DUT2 * | |
- | +--^---------------+ | | +---------------^--+ |
- | *| | | |* |
- | *| SUT1 | | SUT2 |* |
- +------------------------+ +------------------^-----+
- *| |*
- *| |*
- *| +-----------+ |*
- *| | | |*
- *+------------------> TG <------------------+*
- ******************* | |********************
- +-----------+
-
NSH_SFC Functional Tests Coverage
---------------------------------
@@ -97,22 +57,30 @@ Following NSH_SFC functional test areas are covered in the |csit-release| with
results listed in this report:
- **NSH SFC Classifier** - TG sends some TCP packets to test NSH SFC
- Classifier functional. DUT1 will receive these packets from one NIC and loopback
- the VXLAN-GPE-NSH encapsulated packets to the TG from other NIC.
+ Classifier functional. DUT1 will receive these packets from one NIC and
+ loopback the VXLAN-GPE-NSH encapsulated packets to the TG from other NIC.
+
- Test case count: 7
+
- **NSH SFC Proxy Inbound** - TG sends some VXLAN-GPE-NSH encapsulated packets
- to test NSH SFC Proxy Inbound functional. DUT1 will receive these packets from one
- NIC and loopback the VXLAN encapsulated packets to the TG from other NIC.
+ to test NSH SFC Proxy Inbound functional. DUT1 will receive these packets from
+ one NIC and loopback the VXLAN encapsulated packets to the TG from other NIC.
+
- Test case count: 6
+
- **NSH SFC Proxy Outbound** - TG sends some VXLAN encapsulated packets to test
- NSH SFC Proxy Outbound functional. DUT1 will receive these packets from one NIC
- and loopback the VXLAN-GPE-NSH encapsulated packets to the TG from other NIC.
+ NSH SFC Proxy Outbound functional. DUT1 will receive these packets from one
+ NIC and loopback the VXLAN-GPE-NSH encapsulated packets to the TG from other
+ NIC.
+
- Test case count: 6
-- **NSH SFC Service Function Forward** - TG sends some VXLAN-GPE-NSH encapsulated
- packets to test NSH SFC Service Function Forward functional. DUT1 will receive these
- packets from one NIC and swap the VXLAN-GPE-NSH header, after that DUT1 loopback the
- VXLAN-GPE-NSH encapsulated packtes to the TG from other NIC.
+
+- **NSH SFC Service Function Forward** - TG sends some VXLAN-GPE-NSH
+ encapsulated packets to test NSH SFC Service Function Forward functional. DUT1
+ will receive these packets from one NIC and swap the VXLAN-GPE-NSH header,
+ after that DUT1 loopback the VXLAN-GPE-NSH encapsulated packtes to the TG from
+ other NIC.
+
- Test case count: 6
Total 25 NSH SFC functional tests in the |csit-release|.
-