diff options
| author |   Peter Mikus <pmikus@cisco.com> | 2017-07-13 14:42:38 +0200 |
|---|---|---|
| committer | Peter Mikus <pmikus@cisco.com> | 2017-07-14 12:21:06 +0000 |
| commit | d9a08e59581aafe44d446b5bc1ce6ff86b2b173b (patch) | |
| tree | 74902d592577616d7d5c1a115a42ef02d7139b67 /docs/report/nsh_sfc_functional_tests | |
| parent | d6226b0df6d07f886184a5d35ff647dbdfe5d4ce (diff) | |
CSIT-618 CSIT rls1707 Report - Update I
Change-Id: I7c3af55db6cc89f03004db6ddf6fcf67965132a7
Signed-off-by: Peter Mikus <pmikus@cisco.com>
Diffstat (limited to 'docs/report/nsh_sfc_functional_tests')
5 files changed, 579 insertions, 0 deletions
diff --git a/docs/report/nsh_sfc_functional_tests/csit_release_notes.rst b/docs/report/nsh_sfc_functional_tests/csit_release_notes.rst new file mode 100644 index 0000000000..6655a4538d --- /dev/null +++ b/docs/report/nsh_sfc_functional_tests/csit_release_notes.rst @@ -0,0 +1,18 @@ +CSIT Release Notes +================== + +Changes in CSIT |release| +------------------------- + +#. TODO + +Known Issues +------------ + +Here is the list of known issues in CSIT |release| for NSH_SFC functional tests in VIRL: + ++---+-------------------------------------------------+----------+------------------------------------------------------+ +| # | Issue | Jira ID | Description | ++---+-------------------------------------------------+----------+------------------------------------------------------+ +| 1 | TODO | CSIT-??? | TODO | ++---+-------------------------------------------------+----------+------------------------------------------------------+ diff --git a/docs/report/nsh_sfc_functional_tests/documentation.rst b/docs/report/nsh_sfc_functional_tests/documentation.rst new file mode 100644 index 0000000000..709f2a8a84 --- /dev/null +++ b/docs/report/nsh_sfc_functional_tests/documentation.rst @@ -0,0 +1,6 @@ +Documentation
+=============
+
+`CSIT NSH_SFC Functional Tests Documentation`_ contains detailed
+functional description and input parameters for each test case.
+
diff --git a/docs/report/nsh_sfc_functional_tests/index.rst b/docs/report/nsh_sfc_functional_tests/index.rst new file mode 100644 index 0000000000..c7678d26a0 --- /dev/null +++ b/docs/report/nsh_sfc_functional_tests/index.rst @@ -0,0 +1,10 @@ +NSH_SFC Functional Tests +======================== + +.. toctree:: + + overview + csit_release_notes + test_environment + documentation + diff --git a/docs/report/nsh_sfc_functional_tests/overview.rst b/docs/report/nsh_sfc_functional_tests/overview.rst new file mode 100644 index 0000000000..343e11dd83 --- /dev/null +++ b/docs/report/nsh_sfc_functional_tests/overview.rst @@ -0,0 +1,105 @@ +Overview
+========
+
+Tested Virtual Topologies
+-------------------------
+
+CSIT NSH_SFC functional tests are executed on virtualized topologies created
+using Virtual Internet Routing Lab (VIRL) 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 | |
+ +------------------> <------------------+
+ +-----------+
+
+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
+application as a packet Traffic Generator. Logical connectivity between SUTs
+and to TG is provided using virtual NICs using VMs' virtio driver.
+
+Virtual testbeds 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 Virtual Machine and each connection
+that is drawn on the diagram is available for use in any test case. During the
+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
+---------------------------------
+
+Following NSH_SFC functional test areas are covered in the CSIT |release| with
+results listed in this report:
+
+- TODO
+
+
diff --git a/docs/report/nsh_sfc_functional_tests/test_environment.rst b/docs/report/nsh_sfc_functional_tests/test_environment.rst new file mode 100644 index 0000000000..79ca0e90c7 --- /dev/null +++ b/docs/report/nsh_sfc_functional_tests/test_environment.rst @@ -0,0 +1,440 @@ +Test Environment
+================
+
+CSIT NSH_SFC functional tests are currently executed in FD.IO VIRL testbed. The
+physical VIRL testbed infrastructure consists of three identical VIRL hosts:
+
+- All hosts are Cisco UCS C240-M4 (2x Intel(R) Xeon(R) CPU E5-2699 v3 @2.30GHz,
+ 18c, 512GB RAM)
+- Hosts run Ubuntu 14.04.3
+- VIRL software versions:
+
+ - STD server version 0.10.24.7
+ - UWM server version 0.10.24.7
+
+The VIRL host to run VIRL simulation is selected based on least load algorithm
+per VIRL simulation.
+
+Every VIRL simulation uses the same three-node - Traffic Generator (TG node) and
+two Systems Under Test (SUT1 and SUT2) - "double-ring" topology. The appropriate
+pre-built VPP packages built by Jenkins for the patch under review are then
+installed on the two SUTs, along with their /etc/vpp/startup.conf file, in all
+VIRL simulations.
+
+SUT Configuration - VIRL Guest VM
+---------------------------------
+
+Configuration of the SUT VMs is defined in file
+
+ /csit/resources/tools/virl/topologies/double-ring-nested.xenial.virl
+
+- List of SUT VM interfaces:::
+
+ <interface id="0" name="GigabitEthernet0/4/0"/>
+ <interface id="1" name="GigabitEthernet0/5/0"/>
+ <interface id="2" name="GigabitEthernet0/6/0"/>
+ <interface id="3" name="GigabitEthernet0/7/0"/>
+
+- Number of 2MB hugepages: 1024
+
+- Maximum number of memory map areas: 20000
+
+- Kernel Shared Memory Max: 2147483648 (vm.nr_hugepages * 2 * 1024 * 1024)
+
+SUT Configuration - VIRL Guest OS Linux
+---------------------------------------
+
+In CSIT terminology, the VM operating system for both SUTs that |vpp-release| has
+been tested with, is the following:
+
+**#. Ubuntu VIRL image**
+
+This image implies Ubuntu 16.04.1 LTS, current as of yyyy-mm-dd (that is,
+package versions are those that would have been installed by a "apt-get update",
+"apt-get upgrade" on that day), produced by CSIT disk image build scripts.
+
+The exact list of installed packages and their versions (including the Linux
+kernel package version) are included in CSIT source repository:
+
+ resources/tools/disk-image-builder/ubuntu/lists/|virl-image-ubuntu|
+
+A replica of this VM image can be built by running the "build.sh" script in CSIT
+repository resources/tools/disk-image-builder/ubuntu.
+
+**#. CentOS VIRL image**
+
+The Centos7.3 image is ready to be used but no tests running on it now.
+Corresponding Jenkins jobs are under preparation.
+
+The exact list of installed packages and their versions (including the Linux
+kernel package version) are included in CSIT source repository:
+
+ resources/tools/disk-image-builder/ubuntu/lists/|virl-image-centos|
+
+A replica of this VM image can be built by running the "build.sh" script in CSIT
+repository resources/tools/disk-image-builder/centos.
+
+**#. Nested VM image**
+
+In addition to the "main" VM image, tests which require VPP to communicate to a
+VM over a vhost-user interface, utilize a "nested" VM image.
+
+This "nested" VM is dynamically created and destroyed as part of a test case,
+and therefore the "nested" VM image is optimized to be small, lightweight and
+have a short boot time. The "nested" VM image is not built around any
+established Linux distribution, but is based on `BuildRoot
+<https://buildroot.org/>`_, a tool for building embedded Linux systems. Just as
+for the "main" image, scripts to produce an identical replica of the "nested"
+image are included in CSIT GIT repository, and the image can be rebuilt using
+the "build.sh" script at:
+
+ resources/tools/disk-image-builder/ubuntu/lists/nested
+
+DUT Configuration - VPP
+-----------------------
+
+Every System Under Test runs VPP SW application in Linux user-mode as a Device
+Under Test (DUT) node.
+
+**DUT port configuration**
+
+Port configuration of DUTs is defined in topology file that is generated per
+VIRL simulation based on the definition stored in file
+
+ /csit/resources/tools/virl/topologies/double-ring-nested.xenial.yaml
+
+Example of DUT nodes configuration:::
+
+ DUT1:
+ type: DUT
+ host: "10.30.51.157"
+ port: 22
+ username: cisco
+ honeycomb:
+ user: admin
+ passwd: admin
+ port: 8183
+ netconf_port: 2831
+ priv_key: |
+ -----BEGIN RSA PRIVATE KEY-----
+ MIIEpgIBAAKCAQEAwUDlTpzSHpwLQotZOFS4AgcPNEWCnP1AB2hWFmvI+8Kah/gb
+ v8ruZU9RqhPs56tyKzxbhvNkY4VbH5F1GilHZu3mLqzM4KfghMmaeMEjO1T7BYYd
+ vuBfTvIluljfQ2vAlnYrDwn+ClxJk81m0pDgvrLEX4qVVh2sGh7UEkYy5r82DNa2
+ 4VjzPB1J/c8a9zP8FoZUhYIzF4FLvRMjUADpbMXgJMsGpaZLmz95ap0Eot7vb1Cc
+ 1LvF97iyBCrtIOSKRKA50ZhLGjMKmOwnYU+cP5718tbproDVi6VJOo7zeuXyetMs
+ 8YBl9kWblWG9BqP9jctFvsmi5G7hXgq1Y8u+DwIDAQABAoIBAQC/W4E0DHjLMny7
+ 0bvw2YKzD0Zw3fttdB94tkm4PdZv5MybooPnsAvLaXVV0hEdfVi5kzSWNl/LY/tN
+ EP1BgGphc2QgB59/PPxGwFIjDCvUzlsZpynBHe+B/qh5ExNQcVvsIOqWI7DXlXaN
+ 0i/khOzmJ6HncRRah1spKimYRsaUUDskyg7q3QqMWVaqBbbMvLs/w7ZWd/zoDqCU
+ MY/pCI6hkB3QbRo0OdiZLohphBl2ShABTwjvVyyKL5UA4jAEneJrhH5gWVLXnfgD
+ p62W5CollKEYblC8mUkPxpP7Qo277zw3xaq+oktIZhc5SUEUd7nJZtNqVAHqkItW
+ 79VmpKyxAoGBAPfU+kqNPaTSvp+x1n5sn2SgipzDtgi9QqNmC4cjtrQQaaqI57SG
+ OHw1jX8i7L2G1WvVtkHg060nlEVo5n65ffFOqeVBezLVJ7ghWI8U+oBiJJyQ4boD
+ GJVNsoOSUQ0rtuGd9eVwfDk3ol9aCN0KK53oPfIYli29pyu4l095kg11AoGBAMef
+ bPEMBI/2XmCPshLSwhGFl+dW8d+Klluj3CUQ/0vUlvma3dfBOYNsIwAgTP0iIUTg
+ 8DYE6KBCdPtxAUEI0YAEAKB9ry1tKR2NQEIPfslYytKErtwjAiqSi0heM6+zwEzu
+ f54Z4oBhsMSL0jXoOMnu+NZzEc6EUdQeY4O+jhjzAoGBAIogC3dtjMPGKTP7+93u
+ UE/XIioI8fWg9fj3sMka4IMu+pVvRCRbAjRH7JrFLkjbUyuMqs3Arnk9K+gbdQt/
+ +m95Njtt6WoFXuPCwgbM3GidSmZwYT4454SfDzVBYScEDCNm1FuR+8ov9bFLDtGT
+ D4gsngnGJj1MDFXTxZEn4nzZAoGBAKCg4WmpUPaCuXibyB+rZavxwsTNSn2lJ83/
+ sYJGBhf/raiV/FLDUcM1vYg5dZnu37RsB/5/vqxOLZGyYd7x+Jo5HkQGPnKgNwhn
+ g8BkdZIRF8uEJqxOo0ycdOU7n/2O93swIpKWo5LIiRPuqqzj+uZKnAL7vuVdxfaY
+ qVz2daMPAoGBALgaaKa3voU/HO1PYLWIhFrBThyJ+BQSQ8OqrEzC8AnegWFxRAM8
+ EqrzZXl7ACUuo1dH0Eipm41j2+BZWlQjiUgq5uj8+yzy+EU1ZRRyJcOKzbDACeuD
+ BpWWSXGBI5G4CppeYLjMUHZpJYeX1USULJQd2c4crLJKb76E8gz3Z9kN
+ -----END RSA PRIVATE KEY-----
+
+ interfaces:
+ port1:
+ mac_address: "fa:16:3e:9b:89:52"
+ pci_address: "0000:00:04.0"
+ link: link1
+ port2:
+ mac_address: "fa:16:3e:7a:33:60"
+ pci_address: "0000:00:05.0"
+ link: link4
+ port3:
+ mac_address: "fa:16:3e:29:b7:ae"
+ pci_address: "0000:00:06.0"
+ link: link3
+ port4:
+ mac_address: "fa:16:3e:76:8d:ff"
+ pci_address: "0000:00:07.0"
+ link: link6
+ DUT2:
+ type: DUT
+ host: "10.30.51.156"
+ port: 22
+ username: cisco
+ honeycomb:
+ user: admin
+ passwd: admin
+ port: 8183
+ netconf_port: 2831
+ priv_key: |
+ -----BEGIN RSA PRIVATE KEY-----
+ MIIEpgIBAAKCAQEAwUDlTpzSHpwLQotZOFS4AgcPNEWCnP1AB2hWFmvI+8Kah/gb
+ v8ruZU9RqhPs56tyKzxbhvNkY4VbH5F1GilHZu3mLqzM4KfghMmaeMEjO1T7BYYd
+ vuBfTvIluljfQ2vAlnYrDwn+ClxJk81m0pDgvrLEX4qVVh2sGh7UEkYy5r82DNa2
+ 4VjzPB1J/c8a9zP8FoZUhYIzF4FLvRMjUADpbMXgJMsGpaZLmz95ap0Eot7vb1Cc
+ 1LvF97iyBCrtIOSKRKA50ZhLGjMKmOwnYU+cP5718tbproDVi6VJOo7zeuXyetMs
+ 8YBl9kWblWG9BqP9jctFvsmi5G7hXgq1Y8u+DwIDAQABAoIBAQC/W4E0DHjLMny7
+ 0bvw2YKzD0Zw3fttdB94tkm4PdZv5MybooPnsAvLaXVV0hEdfVi5kzSWNl/LY/tN
+ EP1BgGphc2QgB59/PPxGwFIjDCvUzlsZpynBHe+B/qh5ExNQcVvsIOqWI7DXlXaN
+ 0i/khOzmJ6HncRRah1spKimYRsaUUDskyg7q3QqMWVaqBbbMvLs/w7ZWd/zoDqCU
+ MY/pCI6hkB3QbRo0OdiZLohphBl2ShABTwjvVyyKL5UA4jAEneJrhH5gWVLXnfgD
+ p62W5CollKEYblC8mUkPxpP7Qo277zw3xaq+oktIZhc5SUEUd7nJZtNqVAHqkItW
+ 79VmpKyxAoGBAPfU+kqNPaTSvp+x1n5sn2SgipzDtgi9QqNmC4cjtrQQaaqI57SG
+ OHw1jX8i7L2G1WvVtkHg060nlEVo5n65ffFOqeVBezLVJ7ghWI8U+oBiJJyQ4boD
+ GJVNsoOSUQ0rtuGd9eVwfDk3ol9aCN0KK53oPfIYli29pyu4l095kg11AoGBAMef
+ bPEMBI/2XmCPshLSwhGFl+dW8d+Klluj3CUQ/0vUlvma3dfBOYNsIwAgTP0iIUTg
+ 8DYE6KBCdPtxAUEI0YAEAKB9ry1tKR2NQEIPfslYytKErtwjAiqSi0heM6+zwEzu
+ f54Z4oBhsMSL0jXoOMnu+NZzEc6EUdQeY4O+jhjzAoGBAIogC3dtjMPGKTP7+93u
+ UE/XIioI8fWg9fj3sMka4IMu+pVvRCRbAjRH7JrFLkjbUyuMqs3Arnk9K+gbdQt/
+ +m95Njtt6WoFXuPCwgbM3GidSmZwYT4454SfDzVBYScEDCNm1FuR+8ov9bFLDtGT
+ D4gsngnGJj1MDFXTxZEn4nzZAoGBAKCg4WmpUPaCuXibyB+rZavxwsTNSn2lJ83/
+ sYJGBhf/raiV/FLDUcM1vYg5dZnu37RsB/5/vqxOLZGyYd7x+Jo5HkQGPnKgNwhn
+ g8BkdZIRF8uEJqxOo0ycdOU7n/2O93swIpKWo5LIiRPuqqzj+uZKnAL7vuVdxfaY
+ qVz2daMPAoGBALgaaKa3voU/HO1PYLWIhFrBThyJ+BQSQ8OqrEzC8AnegWFxRAM8
+ EqrzZXl7ACUuo1dH0Eipm41j2+BZWlQjiUgq5uj8+yzy+EU1ZRRyJcOKzbDACeuD
+ BpWWSXGBI5G4CppeYLjMUHZpJYeX1USULJQd2c4crLJKb76E8gz3Z9kN
+ -----END RSA PRIVATE KEY-----
+
+ interfaces:
+ port1:
+ mac_address: "fa:16:3e:ad:6c:7d"
+ pci_address: "0000:00:04.0"
+ link: link2
+ port2:
+ mac_address: "fa:16:3e:94:a4:99"
+ pci_address: "0000:00:05.0"
+ link: link5
+ port3:
+ mac_address: "fa:16:3e:75:92:da"
+ pci_address: "0000:00:06.0"
+ link: link3
+ port4:
+ mac_address: "fa:16:3e:2c:b1:2a"
+ pci_address: "0000:00:07.0"
+ link: link6
+
+**VPP Version**
+
+|vpp-release|
+
+**VPP Installed Packages**
+::
+
+ $ dpkg -l vpp\*
+ Desired=Unknown/Install/Remove/Purge/Hold
+ | Status=Not/Inst/Conf-files/Unpacked/halF-conf/Half-inst/trig-aWait/Trig-pend
+ |/ Err?=(none)/Reinst-required (Status,Err: uppercase=bad)
+ ||/ Name Version Architecture Description
+ +++-==============-=============-============-=============================================
+ ii vpp 17.07-release amd64 Vector Packet Processing--executables
+ ii vpp-dbg 17.07-release amd64 Vector Packet Processing--debug symbols
+ ii vpp-dev 17.07-release amd64 Vector Packet Processing--development support
+ ii vpp-dpdk-dev 17.07-release amd64 Vector Packet Processing--development support
+ ii vpp-dpdk-dkms 17.07-release amd64 DPDK 2.1 igb_uio_driver
+ ii vpp-lib 17.07-release amd64 Vector Packet Processing--runtime libraries
+ ii vpp-plugins 17.07-release amd64 Vector Packet Processing--runtime plugins
+
+**VPP Startup Configuration**
+
+VPP startup configuration is common for all test cases.
+
+::
+
+ $ cat /etc/vpp/startup.conf
+ unix {
+ nodaemon
+ log /tmp/vpp.log
+ full-coredump
+ }
+
+ api-trace {
+ on
+ }
+
+ api-segment {
+ gid vpp
+ }
+
+ cpu {
+ ## In the VPP there is one main thread and optionally the user can create worker(s)
+ ## The main thread and worker thread(s) can be pinned to CPU core(s) manually or automatically
+
+ ## Manual pinning of thread(s) to CPU core(s)
+
+ ## Set logical CPU core where main thread runs
+ # main-core 1
+
+ ## Set logical CPU core(s) where worker threads are running
+ # corelist-workers 2-3,18-19
+
+ ## Automatic pinning of thread(s) to CPU core(s)
+
+ ## Sets number of CPU core(s) to be skipped (1 ... N-1)
+ ## Skipped CPU core(s) are not used for pinning main thread and working thread(s).
+ ## The main thread is automatically pinned to the first available CPU core and worker(s)
+ ## are pinned to next free CPU core(s) after core assigned to main thread
+ # skip-cores 4
+
+ ## Specify a number of workers to be created
+ ## Workers are pinned to N consecutive CPU cores while skipping "skip-cores" CPU core(s)
+ ## and main thread's CPU core
+ # workers 2
+
+ ## Set scheduling policy and priority of main and worker threads
+
+ ## Scheduling policy options are: other (SCHED_OTHER), batch (SCHED_BATCH)
+ ## idle (SCHED_IDLE), fifo (SCHED_FIFO), rr (SCHED_RR)
+ # scheduler-policy fifo
+
+ ## Scheduling priority is used only for "real-time policies (fifo and rr),
+ ## and has to be in the range of priorities supported for a particular policy
+ # scheduler-priority 50
+ }
+
+ dpdk {
+ ## Change default settings for all intefaces
+ # dev default {
+ ## Number of receive queues, enables RSS
+ ## Default is 1
+ # num-rx-queues 3
+
+ ## Number of transmit queues, Default is equal
+ ## to number of worker threads or 1 if no workers treads
+ # num-tx-queues 3
+
+ ## Number of descriptors in transmit and receive rings
+ ## increasing or reducing number can impact performance
+ ## Default is 1024 for both rx and tx
+ # num-rx-desc 512
+ # num-tx-desc 512
+
+ ## VLAN strip offload mode for interface
+ ## Default is off
+ # vlan-strip-offload on
+ # }
+
+ ## Whitelist specific interface by specifying PCI address
+ # dev 0000:02:00.0
+
+ ## Whitelist specific interface by specifying PCI address and in
+ ## addition specify custom parameters for this interface
+ # dev 0000:02:00.1 {
+ # num-rx-queues 2
+ # }
+
+ ## Change UIO driver used by VPP, Options are: uio_pci_generic, vfio-pci
+ ## and igb_uio (default)
+ # uio-driver uio_pci_generic
+
+ ## Disable mutli-segment buffers, improves performance but
+ ## disables Jumbo MTU support
+ # no-multi-seg
+
+ ## Increase number of buffers allocated, needed only in scenarios with
+ ## large number of interfaces and worker threads. Value is per CPU socket.
+ ## Default is 32768
+ # num-mbufs 128000
+
+ ## Change hugepages allocation per-socket, needed only if there is need for
+ ## larger number of mbufs. Default is 256M on each detected CPU socket
+ # socket-mem 2048,2048
+ }
+
+TG Configuration
+----------------
+
+Traffic Generator node is VM running the same OS Linux as SUTs. Ports of this
+VM are used as source (Tx) and destination (Rx) ports for the traffic.
+
+Traffic scripts of test cases are executed on this VM.
+
+**TG VM configuration**
+
+Configuration of the TG VMs is defined in file
+
+ /csit/resources/tools/virl/topologies/double-ring-nested.xenial.virl
+
+- List of TG VM interfaces:::
+
+ <interface id="0" name="eth1"/>
+ <interface id="1" name="eth2"/>
+ <interface id="2" name="eth3"/>
+ <interface id="3" name="eth4"/>
+ <interface id="4" name="eth5"/>
+ <interface id="5" name="eth6"/>
+
+**TG node port configuration**
+
+Port configuration of TG is defined in topology file that is generated per VIRL
+simulation based on the definition stored in file
+
+ /csit/resources/tools/virl/topologies/double-ring-nested.xenial.yaml
+
+Example of TG node configuration:::
+
+ TG:
+ type: TG
+ host: "10.30.51.155"
+ port: 22
+ username: cisco
+ priv_key: |
+ -----BEGIN RSA PRIVATE KEY-----
+ MIIEpgIBAAKCAQEAwUDlTpzSHpwLQotZOFS4AgcPNEWCnP1AB2hWFmvI+8Kah/gb
+ v8ruZU9RqhPs56tyKzxbhvNkY4VbH5F1GilHZu3mLqzM4KfghMmaeMEjO1T7BYYd
+ vuBfTvIluljfQ2vAlnYrDwn+ClxJk81m0pDgvrLEX4qVVh2sGh7UEkYy5r82DNa2
+ 4VjzPB1J/c8a9zP8FoZUhYIzF4FLvRMjUADpbMXgJMsGpaZLmz95ap0Eot7vb1Cc
+ 1LvF97iyBCrtIOSKRKA50ZhLGjMKmOwnYU+cP5718tbproDVi6VJOo7zeuXyetMs
+ 8YBl9kWblWG9BqP9jctFvsmi5G7hXgq1Y8u+DwIDAQABAoIBAQC/W4E0DHjLMny7
+ 0bvw2YKzD0Zw3fttdB94tkm4PdZv5MybooPnsAvLaXVV0hEdfVi5kzSWNl/LY/tN
+ EP1BgGphc2QgB59/PPxGwFIjDCvUzlsZpynBHe+B/qh5ExNQcVvsIOqWI7DXlXaN
+ 0i/khOzmJ6HncRRah1spKimYRsaUUDskyg7q3QqMWVaqBbbMvLs/w7ZWd/zoDqCU
+ MY/pCI6hkB3QbRo0OdiZLohphBl2ShABTwjvVyyKL5UA4jAEneJrhH5gWVLXnfgD
+ p62W5CollKEYblC8mUkPxpP7Qo277zw3xaq+oktIZhc5SUEUd7nJZtNqVAHqkItW
+ 79VmpKyxAoGBAPfU+kqNPaTSvp+x1n5sn2SgipzDtgi9QqNmC4cjtrQQaaqI57SG
+ OHw1jX8i7L2G1WvVtkHg060nlEVo5n65ffFOqeVBezLVJ7ghWI8U+oBiJJyQ4boD
+ GJVNsoOSUQ0rtuGd9eVwfDk3ol9aCN0KK53oPfIYli29pyu4l095kg11AoGBAMef
+ bPEMBI/2XmCPshLSwhGFl+dW8d+Klluj3CUQ/0vUlvma3dfBOYNsIwAgTP0iIUTg
+ 8DYE6KBCdPtxAUEI0YAEAKB9ry1tKR2NQEIPfslYytKErtwjAiqSi0heM6+zwEzu
+ f54Z4oBhsMSL0jXoOMnu+NZzEc6EUdQeY4O+jhjzAoGBAIogC3dtjMPGKTP7+93u
+ UE/XIioI8fWg9fj3sMka4IMu+pVvRCRbAjRH7JrFLkjbUyuMqs3Arnk9K+gbdQt/
+ +m95Njtt6WoFXuPCwgbM3GidSmZwYT4454SfDzVBYScEDCNm1FuR+8ov9bFLDtGT
+ D4gsngnGJj1MDFXTxZEn4nzZAoGBAKCg4WmpUPaCuXibyB+rZavxwsTNSn2lJ83/
+ sYJGBhf/raiV/FLDUcM1vYg5dZnu37RsB/5/vqxOLZGyYd7x+Jo5HkQGPnKgNwhn
+ g8BkdZIRF8uEJqxOo0ycdOU7n/2O93swIpKWo5LIiRPuqqzj+uZKnAL7vuVdxfaY
+ qVz2daMPAoGBALgaaKa3voU/HO1PYLWIhFrBThyJ+BQSQ8OqrEzC8AnegWFxRAM8
+ EqrzZXl7ACUuo1dH0Eipm41j2+BZWlQjiUgq5uj8+yzy+EU1ZRRyJcOKzbDACeuD
+ BpWWSXGBI5G4CppeYLjMUHZpJYeX1USULJQd2c4crLJKb76E8gz3Z9kN
+ -----END RSA PRIVATE KEY-----
+
+ interfaces:
+ port3:
+ mac_address: "fa:16:3e:b9:e1:27"
+ pci_address: "0000:00:06.0"
+ link: link1
+ driver: virtio-pci
+ port4:
+ mac_address: "fa:16:3e:e9:c8:68"
+ pci_address: "0000:00:07.0"
+ link: link4
+ driver: virtio-pci
+ port5:
+ mac_address: "fa:16:3e:e8:d3:47"
+ pci_address: "0000:00:08.0"
+ link: link2
+ driver: virtio-pci
+ port6:
+ mac_address: "fa:16:3e:cf:ca:58"
+ pci_address: "0000:00:09.0"
+ link: link5
+ driver: virtio-pci
+
+**Traffic generator**
+
+Functional tests utilize Scapy as a traffic generator. There was used Scapy
+v2.3.1 for |vpp-release| tests.
+
|