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diff --git a/docs/release/overview.rst b/docs/release/overview.rst deleted file mode 100644 index 7e1d136..0000000 --- a/docs/release/overview.rst +++ /dev/null @@ -1,296 +0,0 @@ -.. _opnfv-overview: - -.. This work is licensed under a Creative Commons Attribution 4.0 International License. -.. SPDX-License-Identifier: CC-BY-4.0 -.. (c) Open Platform for NFV Project, Inc. and its contributors - -================ -Platform overview -================ - -Introduction -============ - -Network Functions Virtualization (NFV) is transforming the networking industry via -software-defined infrastructures and open source is the proven method for quickly developing -software for commercial products and services that can move markets. -Open Platform for NFV (OPNFV) facilitates the development and evolution of NFV -components across various open source ecosystems. Through system level integration, -deployment and testing, OPNFV constructs a reference NFV platform to accelerate the -transformation of enterprise and service provider networks. -As an open source project, OPNFV is uniquely positioned to bring together the work -of standards bodies, open source communities, service providers and commercial suppliers to deliver -a de facto NFV platform for the industry. - -By integrating components from upstream projects, the community is able to conduct performance -and use case-based testing on a variety of solutions to ensure the platform’s suitability for -NFV use cases. OPNFV also works upstream with other open source communities to bring contributions -and learnings from its work directly to those communities in the form of blueprints, patches, bugs, -and new code. - -OPNFV initially focused on building NFV Infrastructure (NFVI) and Virtualised Infrastructure -Management (VIM) by integrating components from upstream projects such as OpenDaylight, -OpenStack, Ceph Storage, KVM, Open vSwitch, and Linux. -More recently, OPNFV has extended its portfolio of forwarding solutions to include fd.io and ODP, -is able to run on both Intel and ARM commercial and white-box hardware, support VM, Container and -BareMetal workloads, and includes Management and Network Orchestration MANO components primarily -for application composition and management in the Danube release. - -These capabilities, along with application programmable interfaces (APIs) to other NFV -elements, form the basic infrastructure required for Virtualized Network Functions (VNF) -and MANO components. - -Concentrating on these components while also considering proposed projects on additional -topics (such as the MANO components and applications themselves), OPNFV aims to enhance -NFV services by increasing performance and power efficiency improving reliability, -availability and serviceability, and delivering comprehensive platform instrumentation. - - -OPNFV Platform Architecture -=========================== - -The OPNFV project addresses a number of aspects in the development of a consistent virtualisation -platform including common hardware requirements, software architecture, MANO and applications. - - -OPNFV Platform Overview Diagram - -.. image:: ../images/opnfvplatformgraphic.png - :alt: Overview infographic of the opnfv platform and projects. - - -To address these areas effectively, the OPNFV platform architecture can be decomposed -into the following basic building blocks: - -* Hardware: with the Infra working group, Pharos project and associated activities -* Software Platform: through the platform integration and deployment projects -* MANO: through the MANO working group and associated projects -* Applications: which affect all other areas and drive requirements for OPNFV - -OPNFV Lab Infrastructure -======================== - -The infrastructure working group oversees such topics as lab management, workflow, -definitions, metrics and tools for OPNFV infrastructure. - -Fundamental to the WG is the -`Pharos Specification <https://wiki.opnfv.org/display/pharos/Pharos+Specification>`_ -which provides a set of defined lab infrastructures over a geographically and technically -diverse federated global OPNFV lab. - -Labs may instantiate bare-metal and virtual environments that are accessed remotely by the -community and used for OPNFV platform and feature development, build, deploy and testing. -No two labs are the same and the heterogeneity of the Pharos environment provides the ideal -platform for establishing hardware and software abstractions providing well understood -performance characteristics. - -Community labs are hosted by OPNFV member companies on a voluntary basis. -The Linux Foundation also hosts an OPNFV lab that provides centralized CI -and other production resources which are linked to community labs. -Future lab capabilities will include the ability easily automate deploy and test of any -OPNFV install scenario in any lab environment as well as on a nested "lab as a service" -virtual infrastructure. - -OPNFV Software Platform Architecture -==================================== - -The OPNFV software platform is comprised exclusively of open source implementations of -platform component pieces. OPNFV is able to draw from the rich ecosystem of NFV related -technologies available in open-source then integrate, test, measure and improve these -components in conjunction with our source communities. - -While the composition of the OPNFV software platform is highly complex and constituted of many -projects and components, a subset of these projects gain the most attention from the OPNFV community -to drive the development of new technologies and capabilities. - ---------------------------------- -Virtual Infrastructure Management ---------------------------------- - -OPNFV derives it's virtual infrastructure management from one of our largest upstream ecosystems -OpenStack. OpenStack provides a complete reference cloud management system and associated technologies. -While the OpenStack community sustains a broad set of projects, not all technologies are relevant in -an NFV domain, the OPNFV community consumes a sub-set of OpenStack projects where the usage and -composition may vary depending on the installer and scenario. - -For details on the scenarios available in OPNFV and the specific composition of components -refer to the :ref:`OPNFV User Guide & Configuration Guide <opnfv-user-config>` - ------------------ -Operating Systems ------------------ - -OPNFV currently uses Linux on all target machines, this can include Ubuntu, Centos or SUSE linux. The -specific version of Linux used for any deployment is documented in the installation guide. - ------------------------ -Networking Technologies ------------------------ - -SDN Controllers ---------------- - -OPNFV, as an NFV focused project, has a significant investment on networking technologies -and provides a broad variety of integrated open source reference solutions. The diversity -of controllers able to be used in OPNFV is supported by a similarly diverse set of -forwarding technologies. - -There are many SDN controllers available today relevant to virtual environments -where the OPNFV community supports and contributes to a number of these. The controllers -being worked on by the community during this release of OPNFV include: - -* Neutron: an OpenStack project to provide “network connectivity as a service” between - interface devices (e.g., vNICs) managed by other OpenStack services (e.g., nova). -* OpenDaylight: addresses multivendor, traditional and greenfield networks, establishing the - industry’s de facto SDN platform and providing the foundation for networks of the future. -* ONOS: a carrier-grade SDN network operating system designed for high availability, - performance, scale-out. - -.. OpenContrail SDN controller is planned to be supported in the next release. - -Data Plane ----------- - -OPNFV extends Linux virtual networking capabilities by using virtual switching -and routing components. The OPNFV community proactively engages with these source -communities to address performance, scale and resiliency needs apparent in carrier -networks. - -* FD.io (Fast data - Input/Output): a collection of several projects and libraries to - amplify the transformation that began with Data Plane Development Kit (DPDK) to support - flexible, programmable and composable services on a generic hardware platform. -* Open vSwitch: a production quality, multilayer virtual switch designed to enable - massive network automation through programmatic extension, while still supporting standard - management interfaces and protocols. - -Deployment Architecture -======================= - -A typical OPNFV deployment starts with three controller nodes running in a high availability -configuration including control plane components from OpenStack, SDN, etc. and a minimum -of two compute nodes for deployment of workloads (VNFs). -A detailed description of the hardware requirements required to support the 5 node configuration -can be found in pharos specification: `Pharos Project <https://www.opnfv.org/developers/pharos>`_ - -In addition to the deployment on a highly available physical infrastructure, OPNFV can be -deployed for development and lab purposes in a virtual environment. In this case each of the hosts -is provided by a virtual machine and allows control and workload placement using nested virtualization. - -The initial deployment is done using a staging server, referred to as the "jumphost". -This server-either physical or virtual-is first installed with the installation program -that then installs OpenStack and other components on the controller nodes and compute nodes. -See the :ref:`OPNFV User Guide & Configuration Guide <opnfv-user-config>` for more details. - - -The OPNFV Testing Ecosystem -=========================== - -The OPNFV community has set out to address the needs of virtualization in the carrier -network and as such platform validation and measurements are a cornerstone to the -iterative releases and objectives. - -To simplify the complex task of feature, component and platform validation and characterization -the testing community has established a fully automated method for addressing all key areas of -platform validation. This required the integration of a variety of testing frameworks in our CI -systems, real time and automated analysis of results, storage and publication of key facts for -each run as shown in the following diagram. - -.. image:: ../images/OPNFV_testing_working_group.png - :alt: Overview infographic of the OPNFV testing Ecosystem - -Release Verification -==================== - -The OPNFV community relies on its testing community to establish release criteria for each OPNFV -release. Each release cycle the testing criteria become more stringent and better representative -of our feature and resiliency requirements. - - -As each OPNFV release establishes a set of deployment scenarios to validate, the testing -infrastructure and test suites need to accommodate these features and capabilities. It’s not -only in the validation of the scenarios themselves where complexity increases, there are test -cases that require multiple datacenters to execute when evaluating features, including multisite -and distributed datacenter solutions. - -The release criteria as established by the testing teams include passing a set of test cases -derived from the functional testing project ‘functest,’ a set of test cases derived from our -platform system and performance test project ‘yardstick,’ and a selection of test cases for -feature capabilities derived from other test projects such as bottlenecks, vsperf, cperf and -storperf. The scenario needs to be able to be deployed, pass these tests, and be removed from -the infrastructure iteratively (no less that 4 times) in order to fulfil the release criteria. - --------- -Functest --------- - -Functest provides a functional testing framework incorporating a number of test suites -and test cases that test and verify OPNFV platform functionality. -The scope of Functest and relevant test cases can be found in the :ref:`Functest User Guide <functest-userguide>` - -Functest provides both feature project and component test suite integration, leveraging -OpenStack and SDN controllers testing frameworks to verify the key components of the OPNFV -platform are running successfully. - ---------- -Yardstick ---------- - -Yardstick is a testing project for verifying the infrastructure compliance when running VNF applications. -Yardstick benchmarks a number of characteristics and performance vectors on the infrastructure making it -a valuable pre-deployment NFVI testing tools. - -Yardstick provides a flexible testing framework for launching other OPNFV testing projects. - -There are two types of test cases in Yardstick: - -* Yardstick generic test cases and OPNFV feature test cases; - including basic characteristics benchmarking in compute/storage/network area. -* OPNFV feature test cases include basic telecom feature testing from OPNFV projects; - for example nfv-kvm, sfc, ipv6, Parser, Availability and SDN VPN - -System Evaluation and compliance testing -======================================== - -The OPNFV community is developing a set of test suites intended to evaluate a set of reference -behaviors and capabilities for NFV systems developed externally from the OPNFV ecosystem to -evaluate and measure their ability to provide the features and capabilities developed in the -OPNFV ecosystem. - -The Dovetail project will provide a test framework and methodology able to be used on any NFV platform, -including an agreed set of test cases establishing an evaluation criteria for exercising -an OPNFV compatible system. The Dovetail project has begun establishing the test framework -and will provide a preliminary methodology for the Danube release. Work will continue to -develop these test cases to establish a stand alone compliance evaluation solution -in future releases. - -Additional Testing -================== - -Besides the test suites and cases for release verification, additional testing is performed to validate -specific features or characteristics of the OPNFV platform. -These testing framework and test cases may include some specific needs; such as extended measurements, -additional testing stimuli, or tests simulating environmental disturbances or failures. - -These additional testing activities provide a more complete evaluation of the OPNFV platform. -Some of the projects focused on these testing areas include: - ------- -VSPERF ------- - -VSPERF provides an automated test-framework and comprehensive test suite for measuring data-plane -performance of the NFVI including switching technology, physical and virtual network interfaces. -The provided test cases with network topologies can be customized while also allowing individual -versions of Operating System, vSwitch and hypervisor to be specified. - ------------ -Bottlenecks ------------ - -Bottlenecks provides a framework to find system limitations and bottlenecks, providing -root cause isolation capabilities to facilitate system evaluation. - - -.. _`OPNFV Configuration Guide`: `OPNFV User Guide & Configuration Guide` -.. _`OPNFV User Guide`: `OPNFV User Guide & Configuration Guide` -.. _`Dovetail project`: https://wiki.opnfv.org/display/dovetail |