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authorAbhijit Sinha <abhijit.sinha@intel.com>2018-02-27 16:59:54 +0000
committerGerrit Code Review <gerrit@opnfv.org>2018-02-27 16:59:54 +0000
commitdfd9ce0c3b0f8bcb265d0889ad2f27bf039ae2a2 (patch)
tree77dcab965be67f7114011c4cd54073ac589267d9 /docs
parentfc231560d75a2736bf4f78c7b4688de5411025fe (diff)
parent00a5f207347ae92ffcb33b73fe4ef287a2805367 (diff)
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+Introduction
+=============
+
+This document describes the steps to create a new NSB PROX test based on
+existing PROX functionalities. NSB PROX provides is a simple approximation
+of an operation and can be used to develop best practices and TCO models
+for Telco customers, investigate the impact of new Intel compute,
+network and storage technologies, characterize performance, and develop
+optimal system architectures and configurations.
+
+.. contents::
+
+Prerequisites
+=============
+
+In order to integrate PROX tests into NSB, the following prerequisites are required.
+
+.. _`dpdk wiki page`: http://dpdk.org/
+.. _`yardstick wiki page`: https://wiki.opnfv.org/display/yardstick/
+.. _`Prox documentation`: https://01.org/intel-data-plane-performance-demonstrators/documentation/prox-documentation
+.. _`openstack wiki page`: https://wiki.openstack.org/wiki/Main_Page
+.. _`grafana getting started`: http://docs.grafana.org/guides/gettingstarted/
+.. _`opnfv grafana dashboard`: https://wiki.opnfv.org/display/yardstick/How+to+work+with+grafana+dashboard
+.. _`Prox command line`: https://01.org/intel-data-plane-performance-demonstrators/documentation/prox-documentation#Command_line_options
+.. _`grafana deployment`: https://wiki.opnfv.org/display/yardstick/How+to+deploy+InfluxDB+and+Grafana+locally
+.. _`Prox options`: https://01.org/intel-data-plane-performance-demonstrators/documentation/prox-documentation#.5Beal_options.5D
+.. _`NSB Installation`: http://artifacts.opnfv.org/yardstick/docs/userguide/index.html#document-09-installation
+
+* A working knowledge of Yardstick. See `yardstick wiki page`_.
+* A working knowledge of PROX. See `Prox documentation`_.
+* Knowledge of Openstack. See `openstack wiki page`_.
+* Knowledge of how to use Grafana. See `grafana getting started`_.
+* How to Deploy InfluxDB & Grafana. See `grafana deployment`_.
+* How to use Grafana in OPNFV/Yardstick. See `opnfv grafana dashboard`_.
+* How to install NSB. See `NSB Installation`_
+
+Sample Prox Test Hardware Architecture
+======================================
+
+The following is a diagram of a sample NSB PROX Hardware Architecture
+for both NSB PROX on Bare metal and on Openstack.
+
+In this example when running yardstick on baremetal, yardstick will
+run on the deployment node, the generator will run on the deployment node
+and the SUT(SUT) will run on the Controller Node.
+
+
+.. image:: images/PROX_Hardware_Arch.png
+ :width: 800px
+ :alt: Sample NSB PROX Hard Architecture
+
+Prox Test Architecture
+======================
+
+In order to create a new test, one must understand the architecture of
+the test.
+
+A NSB Prox test architecture is composed of:
+
+* A traffic generator. This provides blocks of data on 1 or more ports
+ to the SUT.
+ The traffic generator also consumes the result packets from the system
+ under test.
+* A SUT consumes the packets generated by the packet
+ generator, and applies one or more tasks to the packets and return the
+ modified packets to the traffic generator.
+
+ This is an example of a sample NSB PROX test architecture.
+
+.. image:: images/PROX_Software_Arch.png
+ :width: 800px
+ :alt: NSB PROX test Architecture
+
+This diagram is of a sample NSB PROX test application.
+
+* Traffic Generator
+
+ * Generator Tasks - Composted of 1 or more tasks (It is possible to
+ have multiple tasks sending packets to same port No. See Tasks Ai and Aii
+ plus Di and Dii)
+
+ * Task Ai - Generates Packets on Port 0 of Traffic Generator
+ and send to Port 0 of SUT Port 0
+ * Task Aii - Generates Packets on Port 0 of Traffic Generator
+ and send to Port 0 of SUT Port 0
+ * Task B - Generates Packets on Port 1 of Traffic Generator
+ and send to Port 1 of SUT Port 1
+ * Task C - Generates Packets on Port 2 of Traffic Generator
+ and send to Port 2 of SUT Port 2
+ * Task Di - Generates Packets on Port 3 of Traffic Generator
+ and send to Port 3 of SUT Port 3
+ * Task Dii - Generates Packets on Port 0 of Traffic Generator
+ and send to Port 0 of SUT Port 0
+
+ * Verifier Tasks - Composed of 1 or more tasks which receives
+ packets from SUT
+
+ * Task E - Receives packets on Port 0 of Traffic Generator sent
+ from Port 0 of SUT Port 0
+ * Task F - Receives packets on Port 1 of Traffic Generator sent
+ from Port 1 of SUT Port 1
+ * Task G - Receives packets on Port 2 of Traffic Generator sent
+ from Port 2 of SUT Port 2
+ * Task H - Receives packets on Port 3 of Traffic Generator sent
+ from Port 3 of SUT Port 3
+
+* SUT
+
+ * Receiver Tasks - Receives packets from generator - Composed on 1 or
+ more tasks which consume the packs sent from Traffic Generator
+
+ * Task A - Receives Packets on Port 0 of System-Under-Test from
+ Traffic Generator Port 0, and forwards packets to Task E
+ * Task B - Receives Packets on Port 1 of System-Under-Test from
+ Traffic Generator Port 1, and forwards packets to Task E
+ * Task C - Receives Packets on Port 2 of System-Under-Test from
+ Traffic Generator Port 2, and forwards packets to Task E
+ * Task D - Receives Packets on Port 3 of System-Under-Test from
+ Traffic Generator Port 3, and forwards packets to Task E
+
+ * Processing Tasks - Composed of multiple tasks in series which carry
+ out some processing on received packets before forwarding to the
+ task.
+
+ * Task E - This receives packets from the Receiver Tasks,
+ carries out some operation on the data and forwards to result
+ packets to the next task in the sequence - Task F
+ * Task F - This receives packets from the previous Task - Task
+ E, carries out some operation on the data and forwards to result
+ packets to the next task in the sequence - Task G
+ * Task G - This receives packets from the previous Task - Task F
+ and distributes the result packages to the Transmitter tasks
+
+ * Transmitter Tasks - Composed on 1 or more tasks which send the
+ processed packets back to the Traffic Generator
+
+ * Task H - Receives Packets from Task G of System-Under-Test and
+ sends packets to Traffic Generator Port 0
+ * Task I - Receives Packets from Task G of System-Under-Test and
+ sends packets to Traffic Generator Port 1
+ * Task J - Receives Packets from Task G of System-Under-Test and
+ sends packets to Traffic Generator Port 2
+ * Task K - Receives Packets From Task G of System-Under-Test and
+ sends packets to Traffic Generator Port 3
+
+NSB Prox Test
+=============
+
+A NSB Prox test is composed of the following components :-
+
+* Test Description File. Usually called
+ ``tc_prox_<context>_<test>-<ports>.yaml`` where
+
+ * <context> is either ``baremetal`` or ``heat_context``
+ * <test> is the a one or 2 word description of the test.
+ * <ports> is the number of ports used
+
+ Example tests ``tc_prox_baremetal_l2fwd-2.yaml`` or
+ ``tc_prox_heat_context_vpe-4.yaml``. This file describes the components
+ of the test, in the case of openstack the network description and
+ server descriptions, in the case of baremetal the hardware
+ description location. It also contains the name of the Traffic Generator, the SUT config file
+ and the traffic profile description, all described below. See nsb-test-description-label_
+
+* Traffic Profile file. Example ``prox_binsearch.yaml``. This describes the packet size, tolerated
+ loss, initial line rate to start traffic at, test interval etc See nsb-traffic-profile-label_
+
+* Traffic Generator Config file. Usually called ``gen_<test>-<ports>.cfg``.
+
+ This describes the activity of the traffic generator
+
+ * What each core of the traffic generator does,
+ * The packet of data sent by a core on a port of the traffic generator
+ to the system under test
+ * What core is used to wait on what port for data from the system
+ under test.
+
+ Example traffic generator config file ``gen_l2fwd-4.cfg``
+ See nsb-traffic-generator-label_
+
+* SUT Config file. Usually called ``handle_<test>-<ports>.cfg``.
+
+ This describes the activity of the SUTs
+
+ * What each core of the does,
+ * What cores receives packets from what ports
+ * What cores perform operations on the packets and pass the packets onto
+ another core
+ * What cores receives packets from what cores and transmit the packets on
+ the ports to the Traffic Verifier tasks of the Traffic Generator.
+
+ Example traffic generator config file ``handle_l2fwd-4.cfg``
+ See nsb-sut-generator-label_
+
+* NSB PROX Baremetal Configuration file. Usually called
+ ``prox-baremetal-<ports>.yaml``
+
+ * <ports> is the number of ports used
+
+ This is required for baremetal only. This describes hardware, NICs,
+ IP addresses, Network drivers, usernames and passwords.
+ See baremetal-config-label_
+
+* Grafana Dashboard. Usually called
+ ``Prox_<context>_<test>-<port>-<DateAndTime>.json`` where
+
+ * <context> Is either ``BM`` or ``heat``
+ * <test> Is the a one or 2 word description of the test.
+ * <port> is the number of ports used express as ``2Port`` or ``4Port``
+ * <DateAndTime> is the Date and Time expressed as a string.
+
+ Example grafana dashboard ``Prox_BM_L2FWD-4Port-1507804504588.json``
+
+Other files may be required. These are test specific files and will be
+covered later.
+
+.. _nsb-test-description-label:
+
+**Test Description File**
+
+Here we will discuss the test description for both
+baremetal and openstack.
+
+*Test Description File for Baremetal*
+-------------------------------------
+
+This section will introduce the meaning of the Test case description
+file. We will use ``tc_prox_baremetal_l2fwd-2.yaml`` as an example to
+show you how to understand the test description file.
+
+.. image:: images/PROX_Test_BM_Script.png
+ :width: 800px
+ :alt: NSB PROX Test Description File
+
+Now let's examine the components of the file in detail
+
+1. ``traffic_profile`` - This specifies the traffic profile for the
+ test. In this case ``prox_binsearch.yaml`` is used. See nsb-traffic-profile-label_
+
+2. ``topology`` - This is either ``prox-tg-topology-1.yaml`` or
+ ``prox-tg-topology-2.yaml`` or ``prox-tg-topology-4.yaml``
+ depending on number of ports required.
+
+3. ``nodes`` - This names the Traffic Generator and the System
+ under Test. Does not need to change.
+
+4. ``prox_path`` - Location of the Prox executable on the traffic
+ generator (Either baremetal or Openstack Virtual Machine)
+
+5. ``prox_config`` - This is the ``SUT Config File``.
+ In this case it is ``handle_l2fwd-2.cfg``
+
+ A number of additional parameters can be added. This example
+ is taken from VPE::
+
+ options:
+ vnf__0:
+ prox_path: /opt/nsb_bin/prox
+ prox_config: ``configs/handle_vpe-4.cfg``
+ prox_args:
+ ``-t``: ````
+ prox_files:
+ ``configs/vpe_ipv4.lua`` : ````
+ ``configs/vpe_dscp.lua`` : ````
+ ``configs/vpe_cpe_table.lua`` : ````
+ ``configs/vpe_user_table.lua`` : ````
+ ``configs/vpe_rules.lua`` : ````
+ prox_generate_parameter: True
+
+ ``prox_files`` - this specified that a number of addition files
+ need to be provided for the test to run correctly. This files
+ could provide routing information,hashing information or a
+ hashing algorithm and ip/mac information.
+
+ ``prox_generate_parameter`` - this specifies that the NSB application
+ is required to provide information to the nsb Prox in the form
+ of a file called ``parameters.lua``, which contains information
+ retrieved from either the hardware or the openstack configuration.
+
+6. ``prox_args`` - this specifies the command line arguments to start
+ prox. See `prox command line`_.
+
+7. ``prox_config`` - This specifies the Traffic Generator config file.
+
+8. ``runner`` - This is set to ``Duration`` - This specified that the
+ test run for a set duration. Other runner types are available
+ but it is recommend to use ``Duration``
+
+9. ``context`` - This is ``context`` for a 2 port Baremetal configuration.
+ If a 4 port configuration was required then file
+ ``prox-baremetal-4.yaml`` would be used. This is the NSB Prox
+ baremetal configuration file.
+
+.. _nsb-traffic-profile-label:
+
+*Traffic Profile file*
+----------------------
+
+This describes the details of the traffic flow. In this case ``prox_binsearch.yaml`` is used.
+
+.. image:: images/PROX_Traffic_profile.png
+ :width: 800px
+ :alt: NSB PROX Traffic Profile
+
+
+1. ``name`` - The name of the traffic profile. This name should match the name specified in the
+ ``traffic_profile`` field in the Test Description File.
+
+2. ``traffic_type`` - This specifies the type of traffic pattern generated, This name matches
+ class name of the traffic generator See::
+
+ network_services/traffic_profile/prox_binsearch.py class ProxBinSearchProfile(ProxProfile)
+
+ In this case it lowers the traffic rate until the number of packets
+ sent is equal to the number of packets received (plus a
+ tolerated loss). Once it achieves this it increases the traffic
+ rate in order to find the highest rate with no traffic loss.
+
+ Custom traffic types can be created by creating a new traffic profile class.
+
+3. ``tolerated_loss`` - This specifies the percentage of packets that can be lost/dropped before
+ we declare success or failure. Success is Transmitted-Packets from Traffic Generator is greater than or equal to
+ packets received by Traffic Generator plus tolerated loss.
+
+4. ``test_precision`` - This specifies the precision of the test results. For some tests the success criteria
+ may never be achieved because the test precision may be greater than the successful throughput. For finer
+ results increase the precision by making this value smaller.
+
+5. ``packet_sizes`` - This specifies the range of packets size this test is run for.
+
+6. ``duration`` - This specifies the sample duration that the test uses to check for success or failure.
+
+7. ``lower_bound`` - This specifies the test initial lower bound sample rate. On success this value is increased.
+
+8. ``upper_bound`` - This specifies the test initial upper bound sample rate. On success this value is decreased.
+
+Other traffic profiles exist eg prox_ACL.yaml which does not
+compare what is received with what is transmitted. It just
+sends packet at max rate.
+
+It is possible to create custom traffic profiles with by
+creating new file in the same folder as prox_binsearch.yaml.
+See this prox_vpe.yaml as example::
+
+ schema: ``nsb:traffic_profile:0.1``
+
+ name: prox_vpe
+ description: Prox vPE traffic profile
+
+ traffic_profile:
+ traffic_type: ProxBinSearchProfile
+ tolerated_loss: 100.0 #0.001
+ test_precision: 0.01
+ # The minimum size of the Ethernet frame for the vPE test is 68 bytes.
+ packet_sizes: [68]
+ duration: 5
+ lower_bound: 0.0
+ upper_bound: 100.0
+
+*Test Description File for Openstack*
+-------------------------------------
+
+We will use ``tc_prox_heat_context_l2fwd-2.yaml`` as a example to show
+you how to understand the test description file.
+
+.. image:: images/PROX_Test_HEAT_Script.png
+ :width: 800px
+ :alt: NSB PROX Test Description File
+
+Now lets examine the components of the file in detail
+
+Sections 1 to 8 are exactly the same in Baremetal and in Heat. Section
+``9`` is replaced with sections A to F. Section 9 was for a baremetal
+configuration file. This has no place in a heat configuration.
+
+A. ``image`` - yardstick-samplevnfs. This is the name of the image
+ created during the installation of NSB. This is fixed.
+
+B. ``flavor`` - The flavor is created dynamically. However we could
+ use an already existing flavor if required. In that case the
+ flavor would be named::
+
+ flavor: yardstick-flavor
+
+C. ``extra_specs`` - This allows us to specify the number of
+ cores sockets and hyperthreading assigned to it. In this case
+ we have 1 socket with 10 codes and no hyperthreading enabled.
+
+D. ``placement_groups`` - default. Do not change for NSB PROX.
+
+E. ``servers`` - ``tg_0`` is the traffic generator and ``vnf_0``
+ is the system under test.
+
+F. ``networks`` - is composed of a management network labeled ``mgmt``
+ and one uplink network labeled ``uplink_0`` and one downlink
+ network labeled ``downlink_0`` for 2 ports. If this was a 4 port
+ configuration there would be 2 extra downlink ports. See this
+ example from a 4 port l2fwd test.::
+
+ networks:
+ mgmt:
+ cidr: '10.0.1.0/24'
+ uplink_0:
+ cidr: '10.0.2.0/24'
+ gateway_ip: 'null'
+ port_security_enabled: False
+ enable_dhcp: 'false'
+ downlink_0:
+ cidr: '10.0.3.0/24'
+ gateway_ip: 'null'
+ port_security_enabled: False
+ enable_dhcp: 'false'
+ downlink_1:
+ cidr: '10.0.4.0/24'
+ gateway_ip: 'null'
+ port_security_enabled: False
+ enable_dhcp: 'false'
+ downlink_2:
+ cidr: '10.0.5.0/24'
+ gateway_ip: 'null'
+ port_security_enabled: False
+ enable_dhcp: 'false'
+
+.. _nsb-traffic-generator-label:
+
+*Traffic Generator Config file*
+-------------------------------
+
+This section will describe the traffic generator config file.
+This is the same for both baremetal and heat. See this example
+of ``gen_l2fwd_multiflow-2.cfg`` to explain the options.
+
+.. image:: images/PROX_Gen_2port_cfg.png
+ :width: 1400px
+ :alt: NSB PROX Gen Config File
+
+The configuration file is divided into multiple sections, each
+of which is used to define some parameters and options.::
+
+ [eal options]
+ [variables]
+ [port 0]
+ [port 1]
+ [port .]
+ [port Z]
+ [defaults]
+ [global]
+ [core 0]
+ [core 1]
+ [core 2]
+ [core .]
+ [core Z]
+
+See `prox options`_ for details
+
+Now let's examine the components of the file in detail
+
+1. ``[eal options]`` - This specified the EAL (Environmental
+ Abstraction Layer) options. These are default values and
+ are not changed. See `dpdk wiki page`_.
+
+2. ``[variables]`` - This section contains variables, as
+ the name suggests. Variables for Core numbers, mac
+ addresses, ip addresses etc. They are assigned as a
+ ``key = value`` where the key is used in place of the value.
+
+ .. caution::
+ A special case for valuables with a value beginning with
+ ``@@``. These values are dynamically updated by the NSB
+ application at run time. Values like MAC address,
+ IP Address etc.
+
+3. ``[port 0]`` - This section describes the DPDK Port. The number
+ following the keyword ``port`` usually refers to the DPDK Port
+ Id. usually starting from ``0``. Because you can have multiple
+ ports this entry usually repeated. Eg. For a 2 port setup
+ ``[port0]`` and ``[port 1]`` and for a 4 port setup ``[port 0]``,
+ ``[port 1]``, ``[port 2]`` and ``[port 3]``::
+
+ [port 0]
+ name=p0
+ mac=hardware
+ rx desc=2048
+ tx desc=2048
+ promiscuous=yes
+
+ a. In this example ``name = p0`` assigned the name ``p0`` to the
+ port. Any name can be assigned to a port.
+ b. ``mac=hardware`` sets the MAC address assigned by the hardware
+ to data from this port.
+ c. ``rx desc=2048`` sets the number of available descriptors to
+ allocate for receive packets. This can be changed and can
+ effect performance.
+ d. ``tx desc=2048`` sets the number of available descriptors to
+ allocate for transmit packets. This can be changed and can
+ effect performance.
+ e. ``promiscuous=yes`` this enables promiscuous mode for this port.
+
+4. ``[defaults]`` - Here default operations and settings can be over
+ written. In this example ``mempool size=4K`` the number of mbufs
+ per task is altered. Altering this value could effect
+ performance. See `prox options`_ for details.
+
+5. ``[global]`` - Here application wide setting are supported. Things
+ like application name, start time, duration and memory
+ configurations can be set here. In this example.::
+
+ [global]
+ start time=5
+ name=Basic Gen
+
+ a. ``start time=5`` Time is seconds after which average
+ stats will be started.
+ b. ``name=Basic Gen`` Name of the configuration.
+
+6. ``[core 0]`` - This core is designated the master core. Every
+ Prox application must have a master core. The master mode must
+ be assigned to exactly one task, running alone on one core.::
+
+ [core 0]
+ mode=master
+
+7. ``[core 1]`` - This describes the activity on core 1. Cores can
+ be configured by means of a set of [core #] sections, where
+ # represents either:
+
+ a. an absolute core number: e.g. on a 10-core, dual socket
+ system with hyper-threading,
+ cores are numbered from 0 to 39.
+
+ b. PROX allows a core to be identified by a core number, the
+ letter 's', and a socket number.
+
+ It is possible to write a baremetal and an openstack test which use
+ the same traffic generator config file and SUT config file.
+ In this case it is advisable not to use physical
+ core numbering.
+
+ However it is also possible to write NSB Prox tests that
+ have been optimized for a particular hardware configuration.
+ In this case it is advisable to use the core numbering.
+ It is up to the user to make sure that cores from
+ the right sockets are used (i.e. from the socket on which the NIC
+ is attached to), to ensure good performance (EPA).
+
+ Each core can be assigned with a set of tasks, each running
+ one of the implemented packet processing modes.::
+
+ [core 1]
+ name=p0
+ task=0
+ mode=gen
+ tx port=p0
+ bps=1250000000
+ ; Ethernet + IP + UDP
+ pkt inline=${sut_mac0} 70 00 00 00 00 01 08 00 45 00 00 1c 00 01 00 00 40 11 f7 7d 98 10 64 01 98 10 64 02 13 88 13 88 00 08 55 7b
+ ; src_ip: 152.16.100.0/8
+ random=0000XXX1
+ rand_offset=29
+ ; dst_ip: 152.16.100.0/8
+ random=0000XXX0
+ rand_offset=33
+ random=0001001110001XXX0001001110001XXX
+ rand_offset=34
+
+ a. ``name=p0`` - Name assigned to the core.
+ b. ``task=0`` - Each core can run a set of tasks. Starting with ``0``.
+ Task 1 can be defined later in this core or
+ can be defined in another ``[core 1]`` section with ``task=1``
+ later in configuration file. Sometimes running
+ multiple task related to the same packet on the same physical
+ core improves performance, however sometimes it
+ is optimal to move task to a separate core. This is best
+ decided by checking performance.
+ c. ``mode=gen`` - Specifies the action carried out by this task on
+ this core. Supported modes are: classify, drop, gen, lat, genl4, nop, l2fwd, gredecap,
+ greencap, lbpos, lbnetwork, lbqinq, lb5tuple, ipv6_decap, ipv6_encap,
+ qinqdecapv4, qinqencapv4, qos, routing, impair,
+ mirror, unmpls, tagmpls, nat, decapnsh, encapnsh, police, acl
+ Which are :-
+
+ * Classify
+ * Drop
+ * Basic Forwarding (no touch)
+ * L2 Forwarding (change MAC)
+ * GRE encap/decap
+ * Load balance based on packet fields
+ * Symmetric load balancing
+ * QinQ encap/decap IPv4/IPv6
+ * ARP
+ * QoS
+ * Routing
+ * Unmpls
+ * Nsh encap/decap
+ * Policing
+ * ACL
+
+ In the traffic generator we expect a core to generate packets (``gen``)
+ and to receive packets & calculate latency (``lat``)
+ This core does ``gen`` . ie it is a traffic generator.
+
+ To understand what each of the modes support please see
+ `prox documentation`_.
+
+ d. ``tx port=p0`` - This specifies that the packets generated are
+ transmitted to port ``p0``
+ e. ``bps=1250000000`` - This indicates Bytes Per Second to
+ generate packets.
+ f. ``; Ethernet + IP + UDP`` - This is a comment. Items starting with
+ ``;`` are ignored.
+ g. ``pkt inline=${sut_mac0} 70 00 00 00 ...`` - Defines the packet
+ format as a sequence of bytes (each
+ expressed in hexadecimal notation). This defines the packet
+ that is generated. This packets begins
+ with the hexadecimal sequence assigned to ``sut_mac`` and the
+ remainder of the bytes in the string.
+ This packet could now be sent or modified by ``random=..``
+ described below before being sent to target.
+ h. ``; src_ip: 152.16.100.0/8`` - Comment
+ i. ``random=0000XXX1`` - This describes a field of the packet
+ containing random data. This string can be
+ 8,16,24 or 32 character long and represents 1,2,3 or 4
+ bytes of data. In this case it describes a byte of
+ data. Each character in string can be 0,1 or ``X``. 0 or 1
+ are fixed bit values in the data packet and ``X`` is a
+ random bit. So random=0000XXX1 generates 00000001(1),
+ 00000011(3), 00000101(5), 00000111(7),
+ 00001001(9), 00001011(11), 00001101(13) and 00001111(15)
+ combinations.
+ j. ``rand_offset=29`` - Defines where to place the previously
+ defined random field.
+ k. ``; dst_ip: 152.16.100.0/8`` - Comment
+ l. ``random=0000XXX0`` - This is another random field which
+ generates a byte of 00000000(0), 00000010(2),
+ 00000100(4), 00000110(6), 00001000(8), 00001010(10),
+ 00001100(12) and 00001110(14) combinations.
+ m. ``rand_offset=33`` - Defines where to place the previously
+ defined random field.
+ n. ``random=0001001110001XXX0001001110001XXX`` - This is
+ another random field which generates 4 bytes.
+ o. ``rand_offset=34`` - Defines where to place the previously
+ defined 4 byte random field.
+
+ Core 2 executes same scenario as Core 1. The only difference
+ in this case is that the packets are generated
+ for Port 1.
+
+8. ``[core 3]`` - This defines the activities on core 3. The purpose
+ of ``core 3`` and ``core 4`` is to receive packets
+ sent by the SUT.::
+
+ [core 3]
+ name=rec 0
+ task=0
+ mode=lat
+ rx port=p0
+ lat pos=42
+
+ a. ``name=rec 0`` - Name assigned to the core.
+ b. ``task=0`` - Each core can run a set of tasks. Starting with
+ ``0``. Task 1 can be defined later in this core or
+ can be defined in another ``[core 1]`` section with
+ ``task=1`` later in configuration file. Sometimes running
+ multiple task related to the same packet on the same
+ physical core improves performance, however sometimes it
+ is optimal to move task to a separate core. This is
+ best decided by checking performance.
+ c. ``mode=lat`` - Specifies the action carried out by this task on this core. Supported modes are: acl,
+ classify, drop, gredecap, greencap, ipv6_decap, ipv6_encap, l2fwd, lbnetwork, lbpos, lbqinq, nop,
+ police, qinqdecapv4, qinqencapv4, qos, routing, impair, lb5tuple, mirror, unmpls, tagmpls,
+ nat, decapnsh, encapnsh, gen, genl4 and lat. This task(0) per core(3) receives packets on port.
+ d. ``rx port=p0`` - The port to receive packets on ``Port 0``. Core 4 will receive packets on ``Port 1``.
+ e. ``lat pos=42`` - Describes where to put a 4-byte timestamp in the packet. Note that the packet length should
+ be longer than ``lat pos`` + 4 bytes to avoid truncation of the timestamp. It defines where the timestamp is
+ to be read from. Note that the SUT workload might cause the position of the timestamp to change
+ (i.e. due to encapsulation).
+
+.. _nsb-sut-generator-label:
+
+*SUT Config file*
+-------------------------------
+
+This section will describes the SUT(VNF) config file. This is the same for both
+baremetal and heat. See this example of ``handle_l2fwd_multiflow-2.cfg`` to explain the options.
+
+.. image:: images/PROX_Handle_2port_cfg.png
+ :width: 1400px
+ :alt: NSB PROX Handle Config File
+
+See `prox options`_ for details
+
+Now let's examine the components of the file in detail
+
+1. ``[eal options]`` - same as the Generator config file. This specified the EAL (Environmental Abstraction Layer)
+ options. These are default values and are not changed.
+ See `dpdk wiki page`_.
+
+2. ``[port 0]`` - This section describes the DPDK Port. The number following the keyword ``port`` usually refers to the DPDK Port Id. usually starting from ``0``.
+ Because you can have multiple ports this entry usually repeated. Eg. For a 2 port setup ``[port0]`` and ``[port 1]`` and for a 4 port setup ``[port 0]``, ``[port 1]``,
+ ``[port 2]`` and ``[port 3]``::
+
+ [port 0]
+ name=if0
+ mac=hardware
+ rx desc=2048
+ tx desc=2048
+ promiscuous=yes
+
+ a. In this example ``name =if0`` assigned the name ``if0`` to the port. Any name can be assigned to a port.
+ b. ``mac=hardware`` sets the MAC address assigned by the hardware to data from this port.
+ c. ``rx desc=2048`` sets the number of available descriptors to allocate for receive packets. This can be changed and can effect performance.
+ d. ``tx desc=2048`` sets the number of available descriptors to allocate for transmit packets. This can be changed and can effect performance.
+ e. ``promiscuous=yes`` this enables promiscuous mode for this port.
+
+3. ``[defaults]`` - Here default operations and settings can be over written.::
+
+ [defaults]
+ mempool size=8K
+ memcache size=512
+
+ a. In this example ``mempool size=8K`` the number of mbufs per task is altered. Altering this value could effect performance. See `prox options`_ for details.
+ b. ``memcache size=512`` - number of mbufs cached per core, default is 256 this is the cache_size. Altering this value could effect performance.
+
+4. ``[global]`` - Here application wide setting are supported. Things like application name, start time, duration and memory configurations can be set here.
+ In this example.::
+
+ [global]
+ start time=5
+ name=Basic Gen
+
+ a. ``start time=5`` Time is seconds after which average stats will be started.
+ b. ``name=Handle L2FWD Multiflow (2x)`` Name of the configuration.
+
+5. ``[core 0]`` - This core is designated the master core. Every Prox application must have a master core. The master mode must be assigned to
+ exactly one task, running alone on one core.::
+
+ [core 0]
+ mode=master
+
+6. ``[core 1]`` - This describes the activity on core 1. Cores can be configured by means of a set of [core #] sections, where # represents either:
+
+ a. an absolute core number: e.g. on a 10-core, dual socket system with hyper-threading,
+ cores are numbered from 0 to 39.
+
+ b. PROX allows a core to be identified by a core number, the letter 's', and a socket number.
+ However NSB PROX is hardware agnostic (physical and virtual configurations are the same) it
+ is advisable no to use physical core numbering.
+
+ Each core can be assigned with a set of tasks, each running one of the implemented packet processing modes.::
+
+ [core 1]
+ name=none
+ task=0
+ mode=l2fwd
+ dst mac=@@tester_mac1
+ rx port=if0
+ tx port=if1
+
+ a. ``name=none`` - No name assigned to the core.
+ b. ``task=0`` - Each core can run a set of tasks. Starting with ``0``. Task 1 can be defined later in this core or
+ can be defined in another ``[core 1]`` section with ``task=1`` later in configuration file. Sometimes running
+ multiple task related to the same packet on the same physical core improves performance, however sometimes it
+ is optimal to move task to a separate core. This is best decided by checking performance.
+ c. ``mode=l2fwd`` - Specifies the action carried out by this task on this core. Supported modes are: acl,
+ classify, drop, gredecap, greencap, ipv6_decap, ipv6_encap, l2fwd, lbnetwork, lbpos, lbqinq, nop,
+ police, qinqdecapv4, qinqencapv4, qos, routing, impair, lb5tuple, mirror, unmpls, tagmpls,
+ nat, decapnsh, encapnsh, gen, genl4 and lat. This code does ``l2fwd`` .. ie it does the L2FWD.
+
+ d. ``dst mac=@@tester_mac1`` - The destination mac address of the packet will be set to the MAC address of ``Port 1`` of destination device. (The Traffic Generator/Verifier)
+ e. ``rx port=if0`` - This specifies that the packets are received from ``Port 0`` called if0
+ f. ``tx port=if1`` - This specifies that the packets are transmitted to ``Port 1`` called if1
+
+ If this example we receive a packet on core on a port, carry out operation on the packet on the core and transmit it on on another port still using the same task on the same core.
+
+ On some implementation you may wish to use multiple tasks, like this.::
+
+ [core 1]
+ name=rx_task
+ task=0
+ mode=l2fwd
+ dst mac=@@tester_p0
+ rx port=if0
+ tx cores=1t1
+ drop=no
+
+ name=l2fwd_if0
+ task=1
+ mode=nop
+ rx ring=yes
+ tx port=if0
+ drop=no
+
+ In this example you can see Core 1/Task 0 called ``rx_task`` receives the packet from if0 and perform the l2fwd. However instead of sending the packet to a
+ port it sends it to a core see ``tx cores=1t1``. In this case it sends it to Core 1/Task 1.
+
+ Core 1/Task 1 called ``l2fwd_if0``, receives the packet, not from a port but from the ring. See ``rx ring=yes``. It does not perform any operation on the packet See ``mode=none``
+ and sends the packets to ``if0`` see ``tx port=if0``.
+
+ It is also possible to implement more complex operations be chaining multiple operations in sequence and using rings to pass packets from one core to another.
+
+ In thus example we show a Broadband Network Gateway (BNG) with Quality of Service (QoS). Communication from task to task is via rings.
+
+ .. image:: images/PROX_BNG_QOS.png
+ :width: 1000px
+ :alt: NSB PROX Config File for BNG_QOS
+
+*Baremetal Configuration file*
+------------------------------
+
+.. _baremetal-config-label:
+
+This is required for baremetal testing. It describes the IP address of the various ports, the Network devices drivers and MAC addresses and the network
+configuration.
+
+In this example we will describe a 2 port configuration. This file is the same for all 2 port NSB Prox tests on the same platforms/configuration.
+
+ .. image:: images/PROX_Baremetal_config.png
+ :width: 1000px
+ :alt: NSB PROX Yardstick Config
+
+Now lets describe the sections of the file.
+
+ 1. ``TrafficGen`` - This section describes the Traffic Generator node of the test configuration. The name of the node ``trafficgen_1`` must match the node name
+ in the ``Test Description File for Baremetal`` mentioned earlier. The password attribute of the test needs to be configured. All other parameters
+ can remain as default settings.
+ 2. ``interfaces`` - This defines the DPDK interfaces on the Traffic Generator.
+ 3. ``xe0`` is DPDK Port 0. ``lspci`` and `` ./dpdk-devbind.py -s`` can be used to provide the interface information. ``netmask`` and ``local_ip`` should not be changed
+ 4. ``xe1`` is DPDK Port 1. If more than 2 ports are required then ``xe1`` section needs to be repeated and modified accordingly.
+ 5. ``vnf`` - This section describes the SUT of the test configuration. The name of the node ``vnf`` must match the node name in the
+ ``Test Description File for Baremetal`` mentioned earlier. The password attribute of the test needs to be configured. All other parameters
+ can remain as default settings
+ 6. ``interfaces`` - This defines the DPDK interfaces on the SUT
+ 7. ``xe0`` - Same as 3 but for the ``SUT``.
+ 8. ``xe1`` - Same as 4 but for the ``SUT`` also.
+ 9. ``routing_table`` - All parameters should remain unchanged.
+ 10. ``nd_route_tbl`` - All parameters should remain unchanged.
+
+*Grafana Dashboard*
+-------------------
+
+The grafana dashboard visually displays the results of the tests. The steps required to produce a grafana dashboard are described here.
+
+.. _yardstick-config-label:
+
+ a. Configure ``yardstick`` to use influxDB to store test results. See file ``/etc/yardstick/yardstick.conf``.
+
+ .. image:: images/PROX_Yardstick_config.png
+ :width: 1000px
+ :alt: NSB PROX Yardstick Config
+
+ 1. Specify the dispatcher to use influxDB to store results.
+ 2. "target = .. " - Specify location of influxDB to store results.
+ "db_name = yardstick" - name of database. Do not change
+ "username = root" - username to use to store result. (Many tests are run as root)
+ "password = ... " - Please set to root user password
+
+ b. Deploy InfludDB & Grafana. See how to Deploy InfluxDB & Grafana. See `grafana deployment`_.
+ c. Generate the test data. Run the tests as follows .::
+
+ yardstick --debug task start tc_prox_<context>_<test>-ports.yaml
+
+ eg.::
+
+ yardstick --debug task start tc_prox_heat_context_l2fwd-4.yaml
+
+ d. Now build the dashboard for the test you just ran. The easiest way to do this is to copy an existing dashboard and rename the
+ test and the field names. The procedure to do so is described here. See `opnfv grafana dashboard`_.
+
+How to run NSB Prox Test on an baremetal environment
+====================================================
+
+In order to run the NSB PROX test.
+
+ 1. Install NSB on Traffic Generator node and Prox in SUT. See `NSB Installation`_
+
+ 2. To enter container::
+
+ docker exec -it yardstick /bin/bash
+
+ 3. Install baremetal configuration file (POD files)
+
+ a. Go to location of PROX tests in container ::
+
+ cd /home/opnfv/repos/yardstick/samples/vnf_samples/nsut/prox
+
+ b. Install prox-baremetal-2.yam and prox-baremetal-4.yaml for that topology
+ into this directory as per baremetal-config-label_
+
+ c. Install and configure ``yardstick.conf`` ::
+
+ cd /etc/yardstick/
+
+ Modify /etc/yardstick/yardstick.conf as per yardstick-config-label_
+
+ 4. Execute the test. Eg.::
+
+ yardstick --debug task start ./tc_prox_baremetal_l2fwd-4.yaml
+
+How to run NSB Prox Test on an Openstack environment
+====================================================
+
+In order to run the NSB PROX test.
+
+ 1. Install NSB on Openstack deployment node. See `NSB Installation`_
+
+ 2. To enter container::
+
+ docker exec -it yardstick /bin/bash
+
+ 3. Install configuration file
+
+ a. Goto location of PROX tests in container ::
+
+ cd /home/opnfv/repos/yardstick/samples/vnf_samples/nsut/prox
+
+ b. Install and configure ``yardstick.conf`` ::
+
+ cd /etc/yardstick/
+
+ Modify /etc/yardstick/yardstick.conf as per yardstick-config-label_
+
+
+ 4. Execute the test. Eg.::
+
+ yardstick --debug task start ./tc_prox_heat_context_l2fwd-4.yaml
+
+Frequently Asked Questions
+==========================
+
+Here is a list of frequently asked questions.
+
+*NSB Prox does not work on Baremetal, How do I resolve this?*
+-------------------------------------------------------------
+
+If PROX NSB does not work on baremetal, problem is either in network configuration or test file.
+
+*Solution*
+
+1. Verify network configuration. Execute existing baremetal test.::
+
+ yardstick --debug task start ./tc_prox_baremetal_l2fwd-4.yaml
+
+ If test does not work then error in network configuration.
+
+ a. Check DPDK on Traffic Generator and SUT via:- ::
+
+ /root/dpdk-17./usertools/dpdk-devbind.py
+
+ b. Verify MAC addresses match ``prox-baremetal-<ports>.yaml`` via ``ifconfig`` and ``dpdk-devbind``
+
+ c. Check your eth port is what you expect. You would not be the first person to think that
+ the port your cable is plugged into is ethX when in fact it is ethY. Use
+ ethtool to visually confirm that the eth is where you expect.::
+
+ ethtool -p ethX
+
+ A led should start blinking on port. (On both System-Under-Test and Traffic Generator)
+
+ d. Check cable.
+
+ Install Linux kernel network driver and ensure your ports are
+ ``bound`` to the driver via ``dpdk-devbind``. Bring up port on both
+ SUT and Traffic Generator and check connection.
+
+ i) On SUT and on Traffic Generator::
+
+ ifconfig ethX/enoX up
+
+ ii) Check link
+
+ ethtool ethX/enoX
+
+ See ``Link detected`` if ``yes`` .... Cable is good. If ``no`` you have an issue with your cable/port.
+
+2. If existing baremetal works then issue is with your test. Check the traffic generator gen_<test>-<ports>.cfg to ensure
+ it is producing a valid packet.
+
+*How do I debug NSB Prox on Baremetal?*
+---------------------------------------
+
+*Solution*
+
+1. Execute the test as follows::
+
+ yardstick --debug task start ./tc_prox_baremetal_l2fwd-4.yaml
+
+2. Login to Traffic Generator as ``root``.::
+
+ cd
+ /opt/nsb_bin/prox -f /tmp/gen_<test>-<ports>.cfg
+
+3. Login to SUT as ``root``.::
+
+ cd
+ /opt/nsb_bin/prox -f /tmp/handle_<test>-<ports>.cfg
+
+4. Now let's examine the Generator Output. In this case the output of gen_l2fwd-4.cfg.
+
+ .. image:: images/PROX_Gen_GUI.png
+ :width: 1000px
+ :alt: NSB PROX Traffic Generator GUI
+
+ Now let's examine the output
+
+ 1. Indicates the amount of data successfully transmitted on Port 0
+ 2. Indicates the amount of data successfully received on port 1
+ 3. Indicates the amount of data successfully handled for port 1
+
+ It appears what is transmitted is received.
+
+ .. Caution::
+ The number of packets MAY not exactly match because the ports are read in sequence.
+
+ .. Caution::
+ What is transmitted on PORT X may not always be received on same port. Please check the Test scenario.
+
+5. Now lets examine the SUT Output
+
+ .. image:: images/PROX_SUT_GUI.png
+ :width: 1400px
+ :alt: NSB PROX SUT GUI
+
+ Now lets examine the output
+
+ 1. What is received on 0 is transmitted on 1, received on 1 transmitted on 0,
+ received on 2 transmitted on 3 and received on 3 transmitted on 2.
+ 2. No packets are Failed.
+ 3. No Packets are discarded.
+
+ We can also dump the packets being received or transmitted via the following commands. ::
+
+ dump Arguments: <core id> <task id> <nb packets>
+ Create a hex dump of <nb_packets> from <task_id> on <core_id> showing how
+ packets have changed between RX and TX.
+ dump_rx Arguments: <core id> <task id> <nb packets>
+ Create a hex dump of <nb_packets> from <task_id> on <core_id> at RX
+ dump_tx Arguments: <core id> <task id> <nb packets>
+ Create a hex dump of <nb_packets> from <task_id> on <core_id> at TX
+
+ eg.::
+
+ dump_tx 1 0 1
+
+*NSB Prox works on Baremetal but not in Openstack. How do I resolve this?*
+--------------------------------------------------------------------------
+
+NSB Prox on Baremetal is a lot more forgiving than NSB Prox on Openstack. A badly
+formed packed may still work with PROX on Baremetal. However on
+Openstack the packet must be correct and all fields of the header correct.
+Eg A packet with an invalid Protocol ID would still work in Baremetal
+but this packet would be rejected by openstack.
+
+*Solution*
+
+ 1. Check the validity of the packet.
+ 2. Use a known good packet in your test
+ 3. If using ``Random`` fields in the traffic generator, disable them and retry.
+
+
+*How do I debug NSB Prox on Openstack?*
+---------------------------------------
+
+*Solution*
+
+1. Execute the test as follows::
+
+ yardstick --debug task start --keep-deploy ./tc_prox_heat_context_l2fwd-4.yaml
+
+2. Access docker image if required via::
+
+ docker exec -it yardstick /bin/bash
+
+3. Install openstack credentials.
+
+ Depending on your openstack deployment, the location of these credentials may vary.
+ On this platform I do this via::
+
+ scp root@10.237.222.55:/etc/kolla/admin-openrc.sh .
+ source ./admin-openrc.sh
+
+4. List Stack details
+
+ a. Get the name of the Stack.
+
+ .. image:: images/PROX_Openstack_stack_list.png
+ :width: 1000px
+ :alt: NSB PROX openstack stack list
+
+ b. Get the Floating IP of the Traffic Generator & SUT
+
+ This generates a lot of information. Please not the floating IP of the VNF and
+ the Traffic Generator.
+
+ .. image:: images/PROX_Openstack_stack_show_a.png
+ :width: 1000px
+ :alt: NSB PROX openstack stack show (Top)
+
+ From here you can see the floating IP Address of the SUT / VNF
+
+ .. image:: images/PROX_Openstack_stack_show_b.png
+ :width: 1000px
+ :alt: NSB PROX openstack stack show (Top)
+
+ From here you can see the floating IP Address of the Traffic Generator
+
+ c. Get ssh identity file
+
+ In the docker container locate the identity file.::
+
+ cd /home/opnfv/repos/yardstick/yardstick/resources/files
+ ls -lt
+
+5. Login to SUT as ``Ubuntu``.::
+
+ ssh -i ./yardstick_key-01029d1d ubuntu@172.16.2.158
+
+ Change to root::
+
+ sudo su
+
+ Now continue as baremetal.
+
+6. Login to SUT as ``Ubuntu``.::
+
+ ssh -i ./yardstick_key-01029d1d ubuntu@172.16.2.156
+
+ Change to root::
+
+ sudo su
+
+ Now continue as baremetal.
+
+*How do I resolve "Quota exceeded for resources"*
+-------------------------------------------------
+
+*Solution*
+
+This usually occurs due to 2 reasons when executing an openstack test.
+
+1. One or more stacks already exists and are consuming all resources. To resolve ::
+
+ openstack stack list
+
+ Response::
+
+ +--------------------------------------+--------------------+-----------------+----------------------+--------------+
+ | ID | Stack Name | Stack Status | Creation Time | Updated Time |
+ +--------------------------------------+--------------------+-----------------+----------------------+--------------+
+ | acb559d7-f575-4266-a2d4-67290b556f15 | yardstick-e05ba5a4 | CREATE_COMPLETE | 2017-12-06T15:00:05Z | None |
+ | 7edf21ce-8824-4c86-8edb-f7e23801a01b | yardstick-08bda9e3 | CREATE_COMPLETE | 2017-12-06T14:56:43Z | None |
+ +--------------------------------------+--------------------+-----------------+----------------------+--------------+
+
+ In this case 2 stacks already exist.
+
+ To remove stack::
+
+ openstack stack delete yardstick-08bda9e3
+ Are you sure you want to delete this stack(s) [y/N]? y
+
+2. The openstack configuration quotas are too small.
+
+ The solution is to increase the quota. Use below to query existing quotas::
+
+ openstack quota show
+
+ And to set quota::
+
+ openstack quota set <resource>
+
+*Openstack Cli fails or hangs. How do I resolve this?*
+------------------------------------------------------
+
+*Solution*
+
+If it fails due to ::
+
+ Missing value auth-url required for auth plugin password
+
+Check your shell environment for Openstack variables. One of them should contain the authentication URL ::
+
+
+ OS_AUTH_URL=``https://192.168.72.41:5000/v3``
+
+Or similar. Ensure that openstack configurations are exported. ::
+
+ cat /etc/kolla/admin-openrc.sh
+
+Result ::
+
+ export OS_PROJECT_DOMAIN_NAME=default
+ export OS_USER_DOMAIN_NAME=default
+ export OS_PROJECT_NAME=admin
+ export OS_TENANT_NAME=admin
+ export OS_USERNAME=admin
+ export OS_PASSWORD=BwwSEZqmUJA676klr9wa052PFjNkz99tOccS9sTc
+ export OS_AUTH_URL=http://193.168.72.41:35357/v3
+ export OS_INTERFACE=internal
+ export OS_IDENTITY_API_VERSION=3
+ export EXTERNAL_NETWORK=yardstick-public
+
+and visible.
+
+If the Openstack Cli appears to hang, then verify the proxys and no_proxy are set correctly.
+They should be similar to ::
+
+ FTP_PROXY="http://proxy.ir.intel.com:911/"
+ HTTPS_PROXY="http://proxy.ir.intel.com:911/"
+ HTTP_PROXY="http://proxy.ir.intel.com:911/"
+ NO_PROXY="localhost,127.0.0.1,10.237.222.55,10.237.223.80,10.237.222.134,.ir.intel.com"
+ ftp_proxy="http://proxy.ir.intel.com:911/"
+ http_proxy="http://proxy.ir.intel.com:911/"
+ https_proxy="http://proxy.ir.intel.com:911/"
+ no_proxy="localhost,127.0.0.1,10.237.222.55,10.237.223.80,10.237.222.134,.ir.intel.com"
+
+Where
+
+ 1) 10.237.222.55 = IP Address of deployment node
+ 2) 10.237.223.80 = IP Address of Controller node
+ 3) 10.237.222.134 = IP Address of Compute Node
+ 4) ir.intel.com = local no proxy
+
+
+
+
+
+
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