Test Environment

CSIT VPP functional tests are executed in FD.io VIRL testbeds. The physical VIRL testbed infrastructure consists of three VIRL servers:

  • tb4-virl1:
    • Status: Production
    • OS: Ubuntu 16.04.2
    • VIRL STD server version: 0.10.32.16
    • VIRL UWM server version: 0.10.32.16
  • tb4-virl2:
    • Status: Production
    • OS: Ubuntu 16.04.2
    • VIRL STD server version: 0.10.32.16
    • VIRL UWM server version: 0.10.32.16
  • tb4-virl3:
    • Status: Production
    • OS: Ubuntu 16.04.2
    • VIRL STD server version: 0.10.32.19
    • VIRL UWM server version: 0.10.32.19
  • VIRL hosts: Cisco UCS C240-M4, each with 2x Intel Xeon E5-2699 v3 (2.30 GHz, 18c), 512GB RAM.

Whenever a patch is submitted to gerrit for review, parallel VIRL simulations are started to reduce the time of execution of all functional tests. The number of parallel VIRL simulations is equal to a number of test groups defined by TEST_GROUPS variable in csit/bootstrap.sh file. VIRL host to run VIRL simulation is selected based on least load algorithm per VIRL simulation.

Every VIRL simulation uses the same three-node logical ring topology - Traffic Generator (TG node) and two Systems Under Test (SUT1 and SUT2). 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 Settings - VIRL Guest VM

SUT VMs’ settings are defined in VIRL topologies directory

  • 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 Settings - VIRL Guest OS Linux

In CSIT terminology, the VM operating system for both SUTs that VPP-19.08.1 release has been tested with, is the following:

  1. 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 VIRL ubuntu images lists.

    A replica of this VM image can be built by running the build.sh script in CSIT repository.

  2. CentOS VIRL image

    This image implies Centos 7.4-1711, current as of yyyy-mm-dd (that is, package versions are those that would have been installed by a yum update, yum 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 VIRL centos images lists.

    A replica of this VM image can be built by running the build.sh script in CSIT repository.

  3. 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, 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 VIRL nested.

DUT Settings - 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 VIRL topologies directory.

Example of DUT nodes configuration:

DUT1:
    type: DUT
    host: "10.30.51.157"
    arch: x86_64
    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"
    arch: x86_64
    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-19.08.1 release

VPP Installed Packages - Ubuntu

$ dpkg -l | grep vpp
ii  libvppinfra                           19.08.1-release                            amd64        Vector Packet Processing--runtime libraries
ii  libvppinfra-dev                       19.08.1-release                            amd64        Vector Packet Processing--runtime libraries
ii  python3-vpp-api                       19.08.1-release                            amd64        VPP Python3 API bindings
ii  vpp                                   19.08.1-release                            amd64        Vector Packet Processing--executables
ii  vpp-api-python                        19.08.1-release                            amd64        VPP Python API bindings
ii  vpp-dbg                               19.08.1-release                            amd64        Vector Packet Processing--debug symbols
ii  vpp-dev                               19.08.1-release                            amd64        Vector Packet Processing--development support
ii  vpp-plugin-core                       19.08.1-release                            amd64        Vector Packet Processing--runtime core plugins
ii  vpp-plugin-dpdk                       19.08.1-release                            amd64        Vector Packet Processing--runtime dpdk plugin

VPP Installed Packages - Centos

$ rpm -qai *vpp*
Name        : vpp-api-python
Version     : 19.08.1
Release     : release
Architecture: x86_64
Install Date: Thu 19 Sep 2019 08:06:16 AM EDT
Group       : Development/Libraries
Size        : 213578
License     : ASL 2.0
Signature   : (none)
Source RPM  : vpp-19.08.1-release.src.rpm
Build Date  : Wed 18 Sep 2019 02:23:59 PM EDT
Build Host  : be613c76bd97
Relocations : (not relocatable)
Summary     : VPP api python bindings
Description :
This package contains the python bindings for the vpp api
Name        : vpp
Version     : 19.08.1
Release     : release
Architecture: x86_64
Install Date: Thu 19 Sep 2019 08:06:16 AM EDT
Group       : Unspecified
Size        : 2674462
License     : ASL 2.0
Signature   : (none)
Source RPM  : vpp-19.08.1-release.src.rpm
Build Date  : Wed 18 Sep 2019 02:23:59 PM EDT
Build Host  : be613c76bd97
Relocations : (not relocatable)
Summary     : Vector Packet Processing
Description :
This package provides VPP executables: vpp, vpp_api_test, vpp_json_test
vpp - the vector packet engine
vpp_api_test - vector packet engine API test tool
vpp_json_test - vector packet engine JSON test tool
Name        : vpp-lib
Version     : 19.08.1
Release     : release
Architecture: x86_64
Install Date: Thu 19 Sep 2019 08:06:16 AM EDT
Group       : System Environment/Libraries
Size        : 43157384
License     : ASL 2.0
Signature   : (none)
Source RPM  : vpp-19.08.1-release.src.rpm
Build Date  : Wed 18 Sep 2019 02:23:59 PM EDT
Build Host  : be613c76bd97
Relocations : (not relocatable)
Summary     : VPP libraries
Description :
This package contains the VPP shared libraries, including:
vppinfra - foundation library supporting vectors, hashes, bitmaps, pools, and string formatting.
svm - vm library
vlib - vector processing library
vlib-api - binary API library
vnet -  network stack library
Name        : vpp-devel
Version     : 19.08.1
Release     : release
Architecture: x86_64
Install Date: Thu 19 Sep 2019 08:06:18 AM EDT
Group       : Development/Libraries
Size        : 13970689
License     : ASL 2.0
Signature   : (none)
Source RPM  : vpp-19.08.1-release.src.rpm
Build Date  : Wed 18 Sep 2019 02:23:59 PM EDT
Build Host  : be613c76bd97
Relocations : (not relocatable)
Summary     : VPP header files, static libraries
Description :
This package contains the header files for VPP.
Install this package if you want to write a
program for compilation and linking with vpp lib.
vlib
vlibmemory
vnet - devices, classify, dhcp, ethernet flow, gre, ip, etc.
vpp-api
vppinfra
Name        : vpp-selinux-policy
Version     : 19.08.1
Release     : release
Architecture: x86_64
Install Date: Thu 19 Sep 2019 08:06:15 AM EDT
Group       : System Environment/Base
Size        : 103132
License     : ASL 2.0
Signature   : (none)
Source RPM  : vpp-19.08.1-release.src.rpm
Build Date  : Wed 18 Sep 2019 02:23:59 PM EDT
Build Host  : be613c76bd97
Relocations : (not relocatable)
Summary     : VPP Security-Enhanced Linux (SELinux) policy
Description :
This package contains a tailored VPP SELinux policy
Name        : vpp-plugins
Version     : 19.08.1
Release     : release
Architecture: x86_64
Install Date: Thu 19 Sep 2019 08:06:17 AM EDT
Group       : System Environment/Libraries
Size        : 34330576
License     : ASL 2.0
Signature   : (none)
Source RPM  : vpp-19.08.1-release.src.rpm
Build Date  : Wed 18 Sep 2019 02:23:59 PM EDT
Build Host  : be613c76bd97
Relocations : (not relocatable)
Summary     : Vector Packet Processing--runtime plugins
Description :
This package contains VPP plugins

VPP Startup Configuration

VPP startup configuration is common for all test cases.

Common Configuration

There is used the default startup configuration as defined in VPP startup.conf

TG Settings - Scapy

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 VIRL topologies directory.

/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 Port Configuration

Port configuration of TG is defined in topology file that is generated per VIRL simulation based on the definition stored in VIRL topologies directory.

Example of TG node configuration::

TG:
    type: TG
    host: "10.30.51.155"
    arch: x86_64
    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. Scapy v2.3.1 is used for VPP-19.08.1 release tests.