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diff --git a/docs/configguide/trafficgen.rst b/docs/configguide/trafficgen.rst new file mode 100644 index 00000000..4e42b2be --- /dev/null +++ b/docs/configguide/trafficgen.rst @@ -0,0 +1,671 @@ +.. This work is licensed under a Creative Commons Attribution 4.0 International License. +.. http://creativecommons.org/licenses/by/4.0 +.. (c) OPNFV, Intel Corporation, AT&T and others. + +.. _trafficgen-installation: + +=========================== +'vsperf' Traffic Gen Guide +=========================== + +Overview +-------- + +VSPERF supports the following traffic generators: + + * Dummy_ (DEFAULT) + * Ixia_ + * `Spirent TestCenter`_ + * `Xena Networks`_ + * MoonGen_ + +To see the list of traffic gens from the cli: + +.. code-block:: console + + $ ./vsperf --list-trafficgens + +This guide provides the details of how to install +and configure the various traffic generators. + +Background Information +---------------------- +The traffic default configuration can be found in **conf/03_traffic.conf**, +and is configured as follows: + +.. code-block:: console + + TRAFFIC = { + 'traffic_type' : 'rfc2544_throughput', + 'frame_rate' : 100, + 'bidir' : 'True', # will be passed as string in title format to tgen + 'multistream' : 0, + 'stream_type' : 'L4', + 'pre_installed_flows' : 'No', # used by vswitch implementation + 'flow_type' : 'port', # used by vswitch implementation + + 'l2': { + 'framesize': 64, + 'srcmac': '00:00:00:00:00:00', + 'dstmac': '00:00:00:00:00:00', + }, + 'l3': { + 'proto': 'udp', + 'srcip': '1.1.1.1', + 'dstip': '90.90.90.90', + }, + 'l4': { + 'srcport': 3000, + 'dstport': 3001, + }, + 'vlan': { + 'enabled': False, + 'id': 0, + 'priority': 0, + 'cfi': 0, + }, + } + +The framesize parameter can be overridden from the configuration +files by adding the following to your custom configuration file +``10_custom.conf``: + +.. code-block:: console + + TRAFFICGEN_PKT_SIZES = (64, 128,) + +OR from the commandline: + +.. code-block:: console + + $ ./vsperf --test-params "TRAFFICGEN_PKT_SIZES=(x,y)" $TESTNAME + +You can also modify the traffic transmission duration and the number +of tests run by the traffic generator by extending the example +commandline above to: + +.. code-block:: console + + $ ./vsperf --test-params "TRAFFICGEN_PKT_SIZES=(x,y);TRAFFICGEN_DURATION=10;" \ + "TRAFFICGEN_RFC2544_TESTS=1" $TESTNAME + +.. _trafficgen-dummy: + +Dummy +----- + +The Dummy traffic generator can be used to test VSPERF installation or +to demonstrate VSPERF functionality at DUT without connection +to a real traffic generator. + +You could also use the Dummy generator in case, that your external +traffic generator is not supported by VSPERF. In such case you could +use VSPERF to setup your test scenario and then transmit the traffic. +After the transmission is completed you could specify values for all +collected metrics and VSPERF will use them to generate final reports. + +Setup +~~~~~ + +To select the Dummy generator please add the following to your +custom configuration file ``10_custom.conf``. + +.. code-block:: console + + TRAFFICGEN = 'Dummy' + +OR run ``vsperf`` with the ``--trafficgen`` argument + +.. code-block:: console + + $ ./vsperf --trafficgen Dummy $TESTNAME + +Where $TESTNAME is the name of the vsperf test you would like to run. +This will setup the vSwitch and the VNF (if one is part of your test) +print the traffic configuration and prompt you to transmit traffic +when the setup is complete. + +.. code-block:: console + + Please send 'continuous' traffic with the following stream config: + 30mS, 90mpps, multistream False + and the following flow config: + { + "flow_type": "port", + "l3": { + "srcip": "1.1.1.1", + "proto": "tcp", + "dstip": "90.90.90.90" + }, + "traffic_type": "rfc2544_continuous", + "multistream": 0, + "bidir": "True", + "vlan": { + "cfi": 0, + "priority": 0, + "id": 0, + "enabled": false + }, + "frame_rate": 90, + "l2": { + "dstport": 3001, + "srcport": 3000, + "dstmac": "00:00:00:00:00:00", + "srcmac": "00:00:00:00:00:00", + "framesize": 64 + } + } + What was the result for 'frames tx'? + +When your traffic generator has completed traffic transmission and provided +the results please input these at the VSPERF prompt. VSPERF will try +to verify the input: + +.. code-block:: console + + Is '$input_value' correct? + +Please answer with y OR n. + +VSPERF will ask you to provide a value for every of collected metrics. The list +of metrics can be found at traffic-type-metrics_. +Finally vsperf will print out the results for your test and generate the +appropriate logs and report files. + +.. _traffic-type-metrics: + +Metrics collected for supported traffic types +~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ + +Below you could find a list of metrics collected by VSPERF for each of supported +traffic types. + +RFC2544 Throughput and Continuous: + + * frames tx + * frames rx + * min latency + * max latency + * avg latency + * frameloss + +RFC2544 Back2back: + + * b2b frames + * b2b frame loss % + +Dummy result pre-configuration +~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ + +In case of a Dummy traffic generator it is possible to pre-configure the test +results. This is useful for creation of demo testcases, which do not require +a real traffic generator. Such testcase can be run by any user and it will still +generate all reports and result files. + +Result values can be specified within ``TRAFFICGEN_DUMMY_RESULTS`` dictionary, +where every of collected metrics must be properly defined. Please check the list +of traffic-type-metrics_. + +Dictionary with dummy results can be passed by CLI argument ``--test-params`` +or specified in ``Parameters`` section of testcase definition. + +Example of testcase execution with dummy results defined by CLI argument: + +.. code-block:: console + + $ ./vsperf back2back --trafficgen Dummy --test-params \ + "TRAFFICGEN_DUMMY_RESULTS={'b2b frames':'3000','b2b frame loss %':'0.0'}" + +Example of testcase definition with pre-configured dummy results: + +.. code-block:: python + + { + "Name": "back2back", + "Traffic Type": "rfc2544_back2back", + "Deployment": "p2p", + "biDirectional": "True", + "Description": "LTD.Throughput.RFC2544.BackToBackFrames", + "Parameters" : { + 'TRAFFICGEN_DUMMY_RESULTS' : {'b2b frames':'3000','b2b frame loss %':'0.0'} + }, + }, + +**NOTE:** Pre-configured results for the Dummy traffic generator will be used only +in case, that the Dummy traffic generator is used. Otherwise the option +``TRAFFICGEN_DUMMY_RESULTS`` will be ignored. + +.. _Ixia: + +Ixia +---- + +VSPERF can use both IxNetwork and IxExplorer TCL servers to control Ixia chassis. +However usage of IxNetwork TCL server is a preferred option. Following sections +will describe installation and configuration of IxNetwork components used by VSPERF. + +Installation +~~~~~~~~~~~~ + +On the system under the test you need to install IxNetworkTclClient$(VER\_NUM)Linux.bin.tgz. + +On the IXIA client software system you need to install IxNetwork TCL server. After its +installation you should configure it as follows: + + 1. Find the IxNetwork TCL server app (start -> All Programs -> IXIA -> + IxNetwork -> IxNetwork\_$(VER\_NUM) -> IxNetwork TCL Server) + 2. Right click on IxNetwork TCL Server, select properties - Under shortcut tab in + the Target dialogue box make sure there is the argument "-tclport xxxx" + where xxxx is your port number (take note of this port number as you will + need it for the 10\_custom.conf file). + + .. image:: TCLServerProperties.png + + 3. Hit Ok and start the TCL server application + +VSPERF configuration +~~~~~~~~~~~~~~~~~~~~ + +There are several configuration options specific to the IxNetwork traffic generator +from IXIA. It is essential to set them correctly, before the VSPERF is executed +for the first time. + +Detailed description of options follows: + + * ``TRAFFICGEN_IXNET_MACHINE`` - IP address of server, where IxNetwork TCL Server is running + * ``TRAFFICGEN_IXNET_PORT`` - PORT, where IxNetwork TCL Server is accepting connections from + TCL clients + * ``TRAFFICGEN_IXNET_USER`` - username, which will be used during communication with IxNetwork + TCL Server and IXIA chassis + * ``TRAFFICGEN_IXIA_HOST`` - IP address of IXIA traffic generator chassis + * ``TRAFFICGEN_IXIA_CARD`` - identification of card with dedicated ports at IXIA chassis + * ``TRAFFICGEN_IXIA_PORT1`` - identification of the first dedicated port at ``TRAFFICGEN_IXIA_CARD`` + at IXIA chassis; VSPERF uses two separated ports for traffic generation. In case of + unidirectional traffic, it is essential to correctly connect 1st IXIA port to the 1st NIC + at DUT, i.e. to the first PCI handle from ``WHITELIST_NICS`` list. Otherwise traffic may not + be able to pass through the vSwitch. + * ``TRAFFICGEN_IXIA_PORT2`` - identification of the second dedicated port at ``TRAFFICGEN_IXIA_CARD`` + at IXIA chassis; VSPERF uses two separated ports for traffic generation. In case of + unidirectional traffic, it is essential to correctly connect 2nd IXIA port to the 2nd NIC + at DUT, i.e. to the second PCI handle from ``WHITELIST_NICS`` list. Otherwise traffic may not + be able to pass through the vSwitch. + * ``TRAFFICGEN_IXNET_LIB_PATH`` - path to the DUT specific installation of IxNetwork TCL API + * ``TRAFFICGEN_IXNET_TCL_SCRIPT`` - name of the TCL script, which VSPERF will use for + communication with IXIA TCL server + * ``TRAFFICGEN_IXNET_TESTER_RESULT_DIR`` - folder accessible from IxNetwork TCL server, + where test results are stored, e.g. ``c:/ixia_results``; see test-results-share_ + * ``TRAFFICGEN_IXNET_DUT_RESULT_DIR`` - directory accessible from the DUT, where test + results from IxNetwork TCL server are stored, e.g. ``/mnt/ixia_results``; see + test-results-share_ + +.. _test-results-share: + +Test results share +~~~~~~~~~~~~~~~~~~ + +VSPERF is not able to retrieve test results via TCL API directly. Instead, all test +results are stored at IxNetwork TCL server. Results are stored at folder defined by +``TRAFFICGEN_IXNET_TESTER_RESULT_DIR`` configuration parameter. Content of this +folder must be shared (e.g. via samba protocol) between TCL Server and DUT, where +VSPERF is executed. VSPERF expects, that test results will be available at directory +configured by ``TRAFFICGEN_IXNET_DUT_RESULT_DIR`` configuration parameter. + +Example of sharing configuration: + + * Create a new folder at IxNetwork TCL server machine, e.g. ``c:\ixia_results`` + * Modify sharing options of ``ixia_results`` folder to share it with everybody + * Create a new directory at DUT, where shared directory with results + will be mounted, e.g. ``/mnt/ixia_results`` + * Update your custom VSPERF configuration file as follows: + + .. code-block:: python + + TRAFFICGEN_IXNET_TESTER_RESULT_DIR = 'c:/ixia_results' + TRAFFICGEN_IXNET_DUT_RESULT_DIR = '/mnt/ixia_results' + + **NOTE:** It is essential to use slashes '/' also in path + configured by ``TRAFFICGEN_IXNET_TESTER_RESULT_DIR`` parameter. + * Install cifs-utils package. + + e.g. at rpm based Linux distribution: + + .. code-block:: console + + yum install cifs-utils + + * Mount shared directory, so VSPERF can access test results. + + e.g. by adding new record into ``/etc/fstab`` + + .. code-block:: console + + mount -t cifs //_TCL_SERVER_IP_OR_FQDN_/ixia_results /mnt/ixia_results + -o file_mode=0777,dir_mode=0777,nounix + +It is recommended to verify, that any new file inserted into ``c:/ixia_results`` folder +is visible at DUT inside ``/mnt/ixia_results`` directory. + +.. _`Spirent TestCenter`: + +Spirent Setup +------------- + +Spirent installation files and instructions are available on the +Spirent support website at: + +http://support.spirent.com + +Select a version of Spirent TestCenter software to utilize. This example +will use Spirent TestCenter v4.57 as an example. Substitute the appropriate +version in place of 'v4.57' in the examples, below. + +On the CentOS 7 System +~~~~~~~~~~~~~~~~~~~~~~ + +Download and install the following: + +Spirent TestCenter Application, v4.57 for 64-bit Linux Client + +Spirent Virtual Deployment Service (VDS) +~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ + +Spirent VDS is required for both TestCenter hardware and virtual +chassis in the vsperf environment. For installation, select the version +that matches the Spirent TestCenter Application version. For v4.57, +the matching VDS version is 1.0.55. Download either the ova (VMware) +or qcow2 (QEMU) image and create a VM with it. Initialize the VM +according to Spirent installation instructions. + +Using Spirent TestCenter Virtual (STCv) +~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ + +STCv is available in both ova (VMware) and qcow2 (QEMU) formats. For +VMware, download: + +Spirent TestCenter Virtual Machine for VMware, v4.57 for Hypervisor - VMware ESX.ESXi + +Virtual test port performance is affected by the hypervisor configuration. For +best practice results in deploying STCv, the following is suggested: + +- Create a single VM with two test ports rather than two VMs with one port each +- Set STCv in DPDK mode +- Give STCv 2*n + 1 cores, where n = the number of ports. For vsperf, cores = 5. +- Turning off hyperthreading and pinning these cores will improve performance +- Give STCv 2 GB of RAM + +To get the highest performance and accuracy, Spirent TestCenter hardware is +recommended. vsperf can run with either stype test ports. + +Using STC REST Client +~~~~~~~~~~~~~~~~~~~~~ +The stcrestclient package provides the stchttp.py ReST API wrapper module. +This allows simple function calls, nearly identical to those provided by +StcPython.py, to be used to access TestCenter server sessions via the +STC ReST API. Basic ReST functionality is provided by the resthttp module, +and may be used for writing ReST clients independent of STC. + +- Project page: <https://github.com/Spirent/py-stcrestclient> +- Package download: <http://pypi.python.org/pypi/stcrestclient> + +To use REST interface, follow the instructions in the Project page to +install the package. Once installed, the scripts named with 'rest' keyword +can be used. For example: testcenter-rfc2544-rest.py can be used to run +RFC 2544 tests using the REST interface. + +Configuration: +~~~~~~~~~~~~~~ + +1. The Labserver and license server addresses. These parameters applies to + all the tests, and are mandatory for all tests. + +.. code-block:: console + + TRAFFICGEN_STC_LAB_SERVER_ADDR = " " + TRAFFICGEN_STC_LICENSE_SERVER_ADDR = " " + TRAFFICGEN_STC_PYTHON2_PATH = " " + TRAFFICGEN_STC_TESTCENTER_PATH = " " + TRAFFICGEN_STC_TEST_SESSION_NAME = " " + TRAFFICGEN_STC_CSV_RESULTS_FILE_PREFIX = " " + +2. For RFC2544 tests, the following parameters are mandatory + +.. code-block:: console + + TRAFFICGEN_STC_EAST_CHASSIS_ADDR = " " + TRAFFICGEN_STC_EAST_SLOT_NUM = " " + TRAFFICGEN_STC_EAST_PORT_NUM = " " + TRAFFICGEN_STC_EAST_INTF_ADDR = " " + TRAFFICGEN_STC_EAST_INTF_GATEWAY_ADDR = " " + TRAFFICGEN_STC_WEST_CHASSIS_ADDR = "" + TRAFFICGEN_STC_WEST_SLOT_NUM = " " + TRAFFICGEN_STC_WEST_PORT_NUM = " " + TRAFFICGEN_STC_WEST_INTF_ADDR = " " + TRAFFICGEN_STC_WEST_INTF_GATEWAY_ADDR = " " + TRAFFICGEN_STC_RFC2544_TPUT_TEST_FILE_NAME + +3. RFC2889 tests: Currently, the forwarding, address-caching, and + address-learning-rate tests of RFC2889 are supported. + The testcenter-rfc2889-rest.py script implements the rfc2889 tests. + The configuration for RFC2889 involves test-case definition, and parameter + definition, as described below. New results-constants, as shown below, are + added to support these tests. + +Example of testcase definition for RFC2889 tests: + +.. code-block:: python + + { + "Name": "phy2phy_forwarding", + "Deployment": "p2p", + "Description": "LTD.Forwarding.RFC2889.MaxForwardingRate", + "Parameters" : { + "TRAFFIC" : { + "traffic_type" : "rfc2889_forwarding", + }, + }, + } + +For RFC2889 tests, specifying the locations for the monitoring ports is mandatory. +Necessary parameters are: + +.. code-block:: console + + TRAFFICGEN_STC_RFC2889_TEST_FILE_NAME + TRAFFICGEN_STC_EAST_CHASSIS_ADDR = " " + TRAFFICGEN_STC_EAST_SLOT_NUM = " " + TRAFFICGEN_STC_EAST_PORT_NUM = " " + TRAFFICGEN_STC_EAST_INTF_ADDR = " " + TRAFFICGEN_STC_EAST_INTF_GATEWAY_ADDR = " " + TRAFFICGEN_STC_WEST_CHASSIS_ADDR = "" + TRAFFICGEN_STC_WEST_SLOT_NUM = " " + TRAFFICGEN_STC_WEST_PORT_NUM = " " + TRAFFICGEN_STC_WEST_INTF_ADDR = " " + TRAFFICGEN_STC_WEST_INTF_GATEWAY_ADDR = " " + TRAFFICGEN_STC_VERBOSE = "True" + TRAFFICGEN_STC_RFC2889_LOCATIONS="//10.1.1.1/1/1,//10.1.1.1/2/2" + +Other Configurations are : + +.. code-block:: console + + TRAFFICGEN_STC_RFC2889_MIN_LR = 1488 + TRAFFICGEN_STC_RFC2889_MAX_LR = 14880 + TRAFFICGEN_STC_RFC2889_MIN_ADDRS = 1000 + TRAFFICGEN_STC_RFC2889_MAX_ADDRS = 65536 + TRAFFICGEN_STC_RFC2889_AC_LR = 1000 + +The first 2 values are for address-learning test where as other 3 values are +for the Address caching capacity test. LR: Learning Rate. AC: Address Caching. +Maximum value for address is 16777216. Whereas, maximum for LR is 4294967295. + +Results for RFC2889 Tests: Forwarding tests outputs following values: + +.. code-block:: console + + TX_RATE_FPS : "Transmission Rate in Frames/sec" + THROUGHPUT_RX_FPS: "Received Throughput Frames/sec" + TX_RATE_MBPS : " Transmission rate in MBPS" + THROUGHPUT_RX_MBPS: "Received Throughput in MBPS" + TX_RATE_PERCENT: "Transmission Rate in Percentage" + FRAME_LOSS_PERCENT: "Frame loss in Percentage" + FORWARDING_RATE_FPS: " Maximum Forwarding Rate in FPS" + + +Whereas, the address caching test outputs following values, + +.. code-block:: console + + CACHING_CAPACITY_ADDRS = 'Number of address it can cache' + ADDR_LEARNED_PERCENT = 'Percentage of address successfully learned' + +and address learning test outputs just a single value: + +.. code-block:: console + + OPTIMAL_LEARNING_RATE_FPS = 'Optimal learning rate in fps' + +Note that 'FORWARDING_RATE_FPS', 'CACHING_CAPACITY_ADDRS', +'ADDR_LEARNED_PERCENT' and 'OPTIMAL_LEARNING_RATE_FPS' are the new +result-constants added to support RFC2889 tests. + +.. _`Xena Networks`: + +Xena Networks +------------- + +Installation +~~~~~~~~~~~~ + +Xena Networks traffic generator requires specific files and packages to be +installed. It is assumed the user has access to the Xena2544.exe file which +must be placed in VSPerf installation location under the tools/pkt_gen/xena +folder. Contact Xena Networks for the latest version of this file. The user +can also visit www.xenanetworks/downloads to obtain the file with a valid +support contract. + +**Note** VSPerf has been fully tested with version v2.43 of Xena2544.exe + +To execute the Xena2544.exe file under Linux distributions the mono-complete +package must be installed. To install this package follow the instructions +below. Further information can be obtained from +http://www.mono-project.com/docs/getting-started/install/linux/ + +.. code-block:: console + + rpm --import "http://keyserver.ubuntu.com/pks/lookup?op=get&search=0x3FA7E0328081BFF6A14DA29AA6A19B38D3D831EF" + yum-config-manager --add-repo http://download.mono-project.com/repo/centos/ + yum -y install mono-complete + +To prevent gpg errors on future yum installation of packages the mono-project +repo should be disabled once installed. + +.. code-block:: console + + yum-config-manager --disable download.mono-project.com_repo_centos_ + +Configuration +~~~~~~~~~~~~~ + +Connection information for your Xena Chassis must be supplied inside the +``10_custom.conf`` or ``03_custom.conf`` file. The following parameters must be +set to allow for proper connections to the chassis. + +.. code-block:: console + + TRAFFICGEN_XENA_IP = '' + TRAFFICGEN_XENA_PORT1 = '' + TRAFFICGEN_XENA_PORT2 = '' + TRAFFICGEN_XENA_USER = '' + TRAFFICGEN_XENA_PASSWORD = '' + TRAFFICGEN_XENA_MODULE1 = '' + TRAFFICGEN_XENA_MODULE2 = '' + +RFC2544 Throughput Testing +~~~~~~~~~~~~~~~~~~~~~~~~~~ + +Xena traffic generator testing for rfc2544 throughput can be modified for +different behaviors if needed. The default options for the following are +optimized for best results. + +.. code-block:: console + + TRAFFICGEN_XENA_2544_TPUT_INIT_VALUE = '10.0' + TRAFFICGEN_XENA_2544_TPUT_MIN_VALUE = '0.1' + TRAFFICGEN_XENA_2544_TPUT_MAX_VALUE = '100.0' + TRAFFICGEN_XENA_2544_TPUT_VALUE_RESOLUTION = '0.5' + TRAFFICGEN_XENA_2544_TPUT_USEPASS_THRESHHOLD = 'false' + TRAFFICGEN_XENA_2544_TPUT_PASS_THRESHHOLD = '0.0' + +Each value modifies the behavior of rfc 2544 throughput testing. Refer to your +Xena documentation to understand the behavior changes in modifying these +values. + +Continuous Traffic Testing +~~~~~~~~~~~~~~~~~~~~~~~~~~ + +Xena continuous traffic by default does a 3 second learning preemption to allow +the DUT to receive learning packets before a continuous test is performed. If +a custom test case requires this learning be disabled, you can disable the option +or modify the length of the learning by modifying the following settings. + +.. code-block:: console + + TRAFFICGEN_XENA_CONT_PORT_LEARNING_ENABLED = False + TRAFFICGEN_XENA_CONT_PORT_LEARNING_DURATION = 3 + +MoonGen +------- + +Installation +~~~~~~~~~~~~ + +MoonGen architecture overview and general installation instructions +can be found here: + +https://github.com/emmericp/MoonGen + +* Note: Today, MoonGen with VSPERF only supports 10Gbps line speeds. + +For VSPERF use, MoonGen should be cloned from here (as opposed to the +previously mentioned GitHub): + +git clone https://github.com/atheurer/lua-trafficgen + +and use the master branch: + +git checkout master + +VSPERF uses a particular Lua script with the MoonGen project: + +trafficgen.lua + +Follow MoonGen set up and execution instructions here: + +https://github.com/atheurer/lua-trafficgen/blob/master/README.md + +Note one will need to set up ssh login to not use passwords between the server +running MoonGen and the device under test (running the VSPERF test +infrastructure). This is because VSPERF on one server uses 'ssh' to +configure and run MoonGen upon the other server. + +One can set up this ssh access by doing the following on both servers: + +.. code-block:: console + + ssh-keygen -b 2048 -t rsa + ssh-copy-id <other server> + +Configuration +~~~~~~~~~~~~~ + +Connection information for MoonGen must be supplied inside the +``10_custom.conf`` or ``03_custom.conf`` file. The following parameters must be +set to allow for proper connections to the host with MoonGen. + +.. code-block:: console + + TRAFFICGEN_MOONGEN_HOST_IP_ADDR = "" + TRAFFICGEN_MOONGEN_USER = "" + TRAFFICGEN_MOONGEN_BASE_DIR = "" + TRAFFICGEN_MOONGEN_PORTS = "" + TRAFFICGEN_MOONGEN_LINE_SPEED_GBPS = "" |