.. 4.0 International License.
.. http://creativecommons.org/licenses/by/4.0
.. Copyright 2017-2018 Huawei Technologies Co., Ltd.
+.. Copyright 2019 ONAP Contributors
+.. Copyright 2020 ONAP Contributors
+.. Copyright 2021 ONAP Contributors
.. _ONAP-architecture:
-1. Introduction
-===============
-
-The ONAP project addresses the rising need for a common automation platform
-for telecommunication, cable, and cloud service providers—and their solution
+Introduction
+============
+ONAP is a comprehensive platform for orchestration, management, and automation
+of network and edge computing services for network operators, cloud providers,
+and enterprises. Real-time, policy-driven orchestration and automation of
+physical, virtual, and cloud native network functions enables rapid automation
+of new services and complete lifecycle management critical for 5G and
+next-generation networks.
+
+The ONAP project addresses the rising need for a common automation platform for
+telecommunication, cable, and cloud service providers—and their solution
providers—to deliver differentiated network services on demand, profitably and
competitively, while leveraging existing investments.
-Prior to ONAP, operators of telecommunication networks have been challenged to
-keep up with the scale and cost of manual changes required to implement new
-service offerings, from installing new data center equipment to, in some cases,
-upgrading on-premises customer equipment. Many are seeking to exploit SDN and
-NFV to improve service velocity, simplify equipment interoperability and
-integration, and reduce overall CapEx and OpEx costs. In addition, the current,
-highly fragmented management landscape makes it difficult to monitor and
-guarantee service-level agreements (SLAs). These challenges are still very real
-now as ONAP creates its third release.
+The challenge that ONAP meets is to help network operators keep up with the
+scale and cost of manual changes required to implement new service offerings,
+from installing new data center equipment to, in some cases, upgrading
+on-premises customer equipment. Many are seeking to exploit SDN and NFV to
+improve service velocity, simplify equipment interoperability and integration,
+and to reduce overall CapEx and OpEx costs. In addition, the current, highly
+fragmented management landscape makes it difficult to monitor and guarantee
+service-level agreements (SLAs). These challenges are still very real now as
+ONAP creates its eighth release.
ONAP is addressing these challenges by developing global and massive scale
-(multi-site and multi-VIM) automation capabilities for both physical and
-virtual network elements. It facilitates service agility by supporting data
-models for rapid service and resource deployment, and providing a common set of
-Northbound REST APIs that are open and interoperable, and by supporting model
-driven interfaces to the networks. ONAP’s modular and layered nature improves
-interoperability and simplifies integration, allowing it to support multiple
-VNF environments by integrating with multiple VIMs, VNFMs, SDN Controllers, and
-even legacy equipment. ONAP’s consolidated VNF requirements publication will
-enable commercial development of ONAP-compliant VNFs. This approach allows
-network and cloud operators to optimize their physical and virtual
-infrastructure for cost and performance; at the same time, ONAP’s use of
-standard models reduces integration and deployment costs of heterogeneous
-equipment, while minimizing management fragmentation.
-
-The ONAP platform allows end user organizations and their network/cloud
+(multi-site and multi-VIM) automation capabilities for physical, virtual, and
+cloud native network elements. It facilitates service agility by supporting
+data models for rapid service and resource deployment and providing a common
+set of northbound REST APIs that are open and interoperable, and by supporting
+model-driven interfaces to the networks. ONAP’s modular and layered nature
+improves interoperability and simplifies integration, allowing it to support
+multiple VNF environments by integrating with multiple VIMs, VNFMs, SDN
+Controllers, as well as legacy equipment (PNF). The Service Design & Creation
+(SDC) project also offers seamless orchestration of CNFs. ONAP’s consolidated
+xNF requirements publication enables commercial development of ONAP-compliant
+xNFs. This approach allows network and cloud operators to optimize their
+physical, virtual and cloud native infrastructure for cost and performance;
+at the same time, ONAP’s use of standard models reduces integration and
+deployment costs of heterogeneous equipment. All this is achieved while
+minimizing management fragmentation.
+
+The ONAP platform allows end-user organizations and their network/cloud
providers to collaboratively instantiate network elements and services in a
-dynamic, closed control loop process, with real-time response to actionable
-events. In order to design, engineer, plan, bill and assure these dynamic
-services, there are three major requirements:
-
-- A robust design framework that allows specification of the service in all
- aspects – modeling the resources and relationships that make up the service,
- specifying the policy rules that guide the service behavior, specifying the
- applications, analytics and closed control loop events needed for the
- elastic management of the service.
-
-- An orchestration and control framework (Service Orchestrator and
- Controllers) that is recipe/policy-driven to provide automated instantiation
- of the service when needed and managing service demands in an elastic
- manner.
-
-- An analytic framework that closely monitors the service behavior during the
- service lifecycle based on the specified design, analytics and policies to
- enable response as required from the control framework, to deal with
- situations ranging from those that require healing to those that require
- scaling of the resources to elastically adjust to demand variations.
-
-To achieve this, ONAP decouples the details of specific services and
+rapid and dynamic way, together with supporting a closed control loop process
+that supports real-time response to actionable events. In order to design,
+engineer, plan, bill and assure these dynamic services, there are three major
+requirements:
+
+- A robust design framework that allows the specification of the service in all
+ aspects – modeling the resources and relationships that make up the service,
+ specifying the policy rules that guide the service behavior, specifying the
+ applications, analytics and closed control loop events needed for the elastic
+ management of the service
+- An orchestration and control framework (Service Orchestrator and Controllers)
+ that is recipe/ policy-driven to provide an automated instantiation of the
+ service when needed and managing service demands in an elastic manner
+- An analytic framework that closely monitors the service behavior during the
+ service lifecycle based on the specified design, analytics and policies to
+ enable response as required from the control framework, to deal with
+ situations ranging from those that require healing to those that require
+ scaling of the resources to elastically adjust to demand variations.
+
+To achieve this, ONAP decouples the details of specific services and supporting
technologies from the common information models, core orchestration platform,
and generic management engines (for discovery, provisioning, assurance etc.).
+
Furthermore, it marries the speed and style of a DevOps/NetOps approach with
-the formal models and processes operators require to introduce new services
-and technologies. It leverages cloud-native technologies including Kubernetes
-to manage and rapidly deploy the ONAP platform and related components. This is
-in stark contrast to traditional OSS/Management software platform
-architectures, which hardcoded services and technologies, and required lengthy
-software development and integration cycles to incorporate changes.
-
-The ONAP Platform enables product/service independent capabilities for design,
+the formal models and processes operators require to introduce new services and
+technologies. It leverages cloud-native technologies including Kubernetes to
+manage and rapidly deploy the ONAP platform and related components. This is in
+stark contrast to traditional OSS/Management software platform architectures,
+which hardcoded services and technologies, and required lengthy software
+development and integration cycles to incorporate changes.
+
+The ONAP Platform enables service/resource independent capabilities for design,
creation and lifecycle management, in accordance with the following
foundational principles:
-- Ability to dynamically introduce full service lifecycle orchestration
- (design, provisioning and operation) and service API for new services and
- technologies without the need for new platform software releases or without
- affecting operations for the existing services
-- Carrier-grade scalability including horizontal scaling (linear scale-out)
- and distribution to support large number of services and large networks
-- Metadata-driven and policy-driven architecture to ensure flexible and
- automated ways in which capabilities are used and delivered
-- The architecture shall enable sourcing best-in-class components
-- Common capabilities are ‘developed’ once and ‘used’ many times
-- Core capabilities shall support many diverse services and infrastructures
-- The architecture shall support elastic scaling as needs grow or shrink
+- Ability to dynamically introduce full service lifecycle orchestration (design
+ , provisioning and operation) and service API for new services and
+ technologies without the need for new platform software releases or without
+ affecting operations for the existing services
+- Scalability and distribution to support a large number of services and large
+ networks
+- Metadata-driven and policy-driven architecture to ensure flexible and
+ automated ways in which capabilities are used and delivered
+- The architecture shall enable sourcing best-in-class components
+- Common capabilities are ‘developed’ once and ‘used’ many times
+- Core capabilities shall support many diverse services and infrastructures
-2. ONAP Architecture
-====================
+Further, ONAP comes with a functional architecture with component definitions
+and interfaces, which provides a force of industry alignment in addition to
+the open source code.
-The platform provides the common functions (e.g., data collection, control
-loops, meta-data recipe creation, policy/recipe distribution, etc.) necessary
-to construct specific behaviors.
+Architecture Overview
+=====================
-To create a service or operational capability, it is necessary to develop
-service/operations-specific service definitions, data collection, analytics,
-and policies (including recipes for corrective/remedial action) using the ONAP
-Design Framework Portal.
+The ONAP architecture consists of a design time and run time functions, as well
+as functions for managing ONAP itself.
-Figure 1 provides a high-level view of the ONAP architecture and
-microservices-based platform components.
+ Note: Use the interactive features of the below ONAP Architecture Overview.
+ Hover with your mouse over an element in the figure for a short description.
+ Click the element to get forwarded to a more detailed description.
-|image1|
+.. raw:: html
+ :file: media/onap-architecture-overview-interactive-path.svg
-**Figure 1: ONAP Platform architecture (Casablanca Release)**
+**Figure 1: Interactive high-level view of the ONAP architecture with its
+microservices-based platform components.**
-Figure 2 below, provides a simplified functional view of the architecture,
+The figure below provides a simplified functional view of the architecture,
which highlights the role of a few key components:
-1. Design time environment for onboarding services and resources into ONAP and
- designing required services.
-2. External API provides northbound interoperability for the ONAP Platform and
- Multi-VIM/Cloud provides cloud interoperability for the ONAP workloads.
-3. OOM provides the ability to manage cloud-native installation and deployments
+#. ONAP Design time environment provides onboarding services and resources
+ into ONAP and designing required services.
+#. External API provides northbound interoperability for the ONAP Platform.
+#. ONAP Runtime environment provides a model- and policy-driven orchestration
+ and control framework for an automated instantiation and configuration of
+ services and resources. Multi-VIM/Cloud provides cloud interoperability for
+ the ONAP workloads. Analytic framework that closely monitors the service
+ behavior handles closed control loop management for handling healing,
+ scaling and update dynamically.
+#. OOM provides the ability to manage cloud-native installation and deployments
to Kubernetes-managed cloud environments.
-4. ONAP Common Services manages complex and optimized topologies. MUSIC allows
- ONAP to scale to multi-site environments to support global scale
- infrastructure requirements. The ONAP Optimization Framework (OOF) provides
- a declarative, policy-driven approach for creating and running optimization
- applications like Homing/Placement, and Change Management Scheduling
- Optimization.
-5. Information Model and framework utilities continue to evolve to harmonize
- the topology, workflow, and policy models from a number of SDOs including
- ETSI NFV MANO, TM Forum SID, ONF Core, OASIS TOSCA, IETF and MEF.
+#. ONAP Shared Services provides shared capabilities for ONAP modules. The ONAP
+ Optimization Framework (OOF) provides a declarative, policy-driven approach
+ for creating and running optimization applications like Homing/Placement,
+ and Change Management Scheduling Optimization. ONAP shared utilities provide
+ utilities for the support of the ONAP components.
+
+Information Model and framework utilities continue to evolve to harmonize
+the topology, workflow, and policy models from a number of SDOs including
+ETSI NFV MANO, ETSI/3GPP, O-RAN, TM Forum SID, ONF Core, OASIS TOSCA, IETF,
+and MEF.
|image2|
**Figure 2. Functional view of the ONAP architecture**
-The Casablanca release has a number of important new features in the areas of
-design time and runtime, ONAP installation, and S3P.
-
-Design time: The Service Design and Creation (SDC) project in ONAP has two new
-dashboards—DCAE design studio, SO Workflow Designer—to help designers, product
-managers, TechOps, and VNF owners create artifacts in one unified design
-palette.
-
-Runtime: Service Orchestration (SO) and controllers have new functionality to
-support physical network functions (PNFs), reboot, traffic migration, expanded
-hardware platform awareness (HPA), cloud agnostic intent capabilities, improved
-homing service, SDN geographic redundancy, scale-out and edge cloud onboarding.
-This will expand the actions available to support lifecycle management
-functionality, increase performance and availability, and unlock new edge
-automation and 5G use cases. With support for ETSI NFV-SOL003, the introduction
-of an ETSI compliant VNFM is simplified.
-
-In the area of monitoring, analytics, and service assurance, ONAP has early
-support for the Linux Foundation PNDA project in DCAE as a compliment to CDAP.
-Next, the data collection framework can now collect real-time messages through
-a high-volume collector, handle PNFs, and support SNMP and bulk performance
-management data files. The Policy project supports a new policy engine as well
-as the new Casablanca blueprints and can distribute policies through policy
-design capabilities in SDC, simplifying the design process. Next, the Holmes
-alarm correlation engine features a new GUI and provides richer functionality
-through scripting, again simplifying how rapidly alarm correlation rules can be
-developed.
-
-Moreover, there are new features in A&AI to support audit capabilities by
-providing historical data. ONAP northbound API continues to align better with
-TMForum (around ServiceOrder) and MEF APIs (around Legato and Interlude APIs)
-to simplify integration with OSS/BSS. The VID and UUI operations GUI projects
-can support a larger range of lifecycle management actions through a simple
-point and click interface allowing operators to perform more tasks with ease.
-Furthermore, The CLAMP project offers a new dashboard to view DMaaP and other
-events during design and runtime to ease the debugging of control-loop
-automation. ONAP has experimentally introduced ISTIO in certain components to
-progress the introduction of Service Mesh.
-
-ONAP installation: The ONAP Operations Manager (OOM) continues to make progress
-in streamlining ONAP installation by using Kubernetes (Docker and Helm Chart
-technologies). In Casablanca, OOM supports pluggable persistent storage
-including GlusterFS, providing users with more storage options. In a multi-node
-deployment, OOM allows more control on the placement of services based on
-available resources or node selectors. Finally, OOM now supports backup/restore
-of an entire k8s deployment thus introducing data protection.
-
-Casablanca has introduced the controller design studio, as part of the
-controller framework, which enables a model driven approach for how an ONAP
-controller controls the network resources.
-
-Deployability: Casablanca continued the 7 Dimensions momentum (Stability,
-Security, Scalability, Performance; and Resilience, Manageability, and
-Usability) from the prior to the Beijing release. A new logging project
-initiative called Post Orchestration Model Based Audit (POMBA), can check for
-deviations between design and ops environments thus increasing network service
-reliability. Numerous other projects ranging from Logging, SO, VF-C, A&AI,
-Portal, Policy, CLAMP and MSB have a number of improvements in the areas of
-performance, availability, logging, move to a cloud native architecture,
-authentication, stability, security, and code quality. Finally, versions of
-OpenDaylight and Kafka that are integrated in ONAP were upgraded to the Oxygen
-and v0.11 releases providing new capabilities such as P4 and data routing
-respectively.
-
-3. Microservices Support
-========================
-
+Microservices Support
+=====================
As a cloud-native application that consists of numerous services, ONAP requires
-sophisticated initial deployment as well as post-deployment management.
+sophisticated initial deployment as well as post- deployment management.
The ONAP deployment methodology needs to be flexible enough to suit the
different scenarios and purposes for various operator environments. Users may
also want to select a portion of the ONAP components to integrate into their
-own systems. And the platform needs to be highly reliable, scalable, secure and
-easy to manage. To achieve all these goals, ONAP is designed as a
-microservices-based system, with all components released as Docker containers.
-
+own systems. And the platform needs to be highly reliable, scalable, secure
+and easy to manage. To achieve all these goals, ONAP is designed as a
+microservices-based system, with all components released as Docker containers
+following best practice building rules to optimize their image size. Numerous
+optimizations such as shared databases and the use of standardized lightweight
+container operating systems reduce the overall ONAP footprint.
+
+ONAP Operations Manager (OOM)
+-----------------------------
The ONAP Operations Manager (OOM) is responsible for orchestrating the
end-to-end lifecycle management and monitoring of ONAP components. OOM uses
-Kubernetes to provide CPU efficiency and platform deployment. In addition, OOM
-helps enhance ONAP platform maturity by providing scalability and resiliency
-enhancements to the components it manages.
+Kubernetes with IPv4 and IPv6 support to provide CPU efficiency and platform
+deployment. In addition, OOM helps enhance ONAP platform maturity by providing
+scalability and resiliency enhancements to the components it manages.
OOM is the lifecycle manager of the ONAP platform and uses the Kubernetes
container management system and Consul to provide the following functionality:
-1. Deployment - with built-in component dependency management (including
+#. Deployment - with built-in component dependency management (including
multiple clusters, federated deployments across sites, and anti-affinity
rules)
-2. Configuration - unified configuration across all ONAP components
-3. Monitoring - real-time health monitoring feeding to a Consul GUI and
+#. Configuration - unified configuration across all ONAP components
+#. Monitoring - real-time health monitoring feeding to a Consul GUI and
Kubernetes
-4. Restart - failed ONAP components are restarted automatically
-5. Clustering and Scaling - cluster ONAP services to enable seamless scaling
-6. Upgrade - change out containers or configuration with little or no service
+#. Restart - failed ONAP components are restarted automatically
+#. Clustering and Scaling - cluster ONAP services to enable seamless scaling
+#. Upgrade - change out containers or configuration with little or no service
impact
-7. Deletion - clean up individual containers or entire deployments
+#. Deletion - clean up individual containers or entire deployments
OOM supports a wide variety of cloud infrastructures to suit your individual
requirements.
-Microservices Bus (MSB) provides fundamental microservices supports including
-service registration/discovery, external API gateway, internal API gateway,
-client software development kit (SDK), and Swagger SDK. MSB supports both
-OpenStack (Heat) and bare metal deployment. When integrating with OOM, MSB has
-a Kube2MSB registrar which can grasp services information from k8s metafile and
-automatically register the services for ONAP components.
+Starting with the Istanbul-R9, as a PoC, OOM provides Service Mesh-based
+mTLS (mutual TLS) between ONAP components to secure component communications,
+by leveraging Istio. The goal is to substitute (unmaintained) AAF
+functionalities.
-4. Portal
-=========
+Microservices Bus (MSB)
+-----------------------
+Microservices Bus (MSB) provides fundamental microservices support including
+service registration/ discovery, external API gateway, internal API gateway,
+client software development kit (SDK), and Swagger SDK. When integrating with
+OOM, MSB has a Kube2MSB registrar which can grasp services information from k8s
+metafile and automatically register the services for ONAP components.
+
+In the spirit of leveraging the microservice capabilities, further steps
+towards increased modularity have been taken. Service Orchestrator (SO) and the
+controllers have increased its level of modularity.
+
+Portal
+======
+
+.. warning:: The ONAP :strong:`portal` project is :strong:`unmaintained`.
ONAP delivers a single, consistent user experience to both design time and
runtime environments, based on the user’s role. Role changes are configured
shared, role-based menu or dashboard. The portal architecture provides
web-based capabilities such as application onboarding and management,
centralized access management through the Authentication and Authorization
-Framework, and dashboards, as well as hosted application widgets.
+Framework (AAF), and dashboards, as well as hosted application widgets.
The portal provides an SDK to enable multiple development teams to adhere to
consistent UI development requirements by taking advantage of built-in
capabilities (Services/ API/ UI controls), tools and technologies. ONAP also
provides a Command Line Interface (CLI) for operators who require it (e.g., to
-integrate with their scripting environment). ONAP SDKs enable
-operations/security, third parties (e.g., vendors and consultants), and other
-experts to continually define/redefine new collection, analytics, and policies
-(including recipes for corrective/remedial action) using the ONAP Design
-Framework Portal.
-
-5. Design-time Framework
-========================
+integrate with their scripting environment). ONAP SDKs enable operations/
+security, third parties (e.g., vendors and consultants), and other experts to
+continually define/redefine new collection, analytics, and policies (including
+recipes for corrective/remedial action) using the ONAP Design Framework Portal.
+Design Time Framework
+=====================
The design time framework is a comprehensive development environment with
-tools, techniques, and repositories for defining/describing resources,
+tools, techniques, and repositories for defining/ describing resources,
services, and products.
The design time framework facilitates reuse of models, further improving
-efficiency as more and more models become available. Resources, services and
-their management and control functions can all be modeled using a common set
-of specifications and policies (e.g., rule sets) for controlling behavior and
-process execution. Process specifications automatically sequence instantiation,
-delivery and lifecycle management for resources, services, products and the
-ONAP platform components themselves. Certain process specifications (i.e.,
-‘recipes’) and policies are geographically distributed to optimize performance
-and maximize autonomous behavior in federated cloud environments.
-
+efficiency as more and more models become available. Resources, services,
+products, and their management and control functions can all be modeled using a
+common set of specifications and policies (e.g., rule sets) for controlling
+behavior and process execution. Process specifications automatically sequence
+instantiation, delivery and lifecycle management for resources, services,
+products and the ONAP platform components themselves. Certain process
+specifications (i.e., ‘recipes’) and policies are geographically distributed to
+optimize performance and maximize autonomous behavior in federated cloud
+environments.
+
+Service Design and Creation (SDC)
+---------------------------------
Service Design and Creation (SDC) provides tools, techniques, and repositories
to define/simulate/certify system assets as well as their associated processes
-and policies. Each asset is categorized into one of two asset groups: Resource
-or Services.
+and policies. Each asset is categorized into one of four asset groups: Resource
+, Services, Products, or Offers. SDC supports the onboarding of Network
+Services packages (ETSI SOL007 with ETSI SOL001), CNF packages (Helm),
+VNF packages (Heat or ETSI SOL004) and PNF packages (ETSI SOL004). SDC also
+includes some capabilities to model 5G network slicing using the standard
+properties (Slice Profile, Service Template).
+
The SDC environment supports diverse users via common services and utilities.
Using the design studio, product and service designers onboard/extend/retire
-resources and services. Operations, Engineers, Customer Experience Managers,
-and Security Experts create workflows, policies and methods to implement Closed
-control Loop Automation/Control and manage elastic scalability.
+resources, services and products. Operations, Engineers, Customer Experience
+Managers, and Security Experts create workflows, policies and methods to
+implement Closed Control Loop Automation/Control and manage elastic
+scalability.
To support and encourage a healthy VNF ecosystem, ONAP provides a set of VNF
packaging and validation tools in the VNF Supplier API and Software Development
them to the validation engine. Once tested, the VNFs can be onboarded through
SDC. In addition, the testing capability of VNFSDK is being utilized at the LFN
Compliance Verification Program to work towards ensuring a highly consistent
-approach to VNF verification.
+approach to VNF verification. ONAP supports onboarding of CNFs and PNFs as
+well.
The Policy Creation component deals with policies; these are rules, conditions,
requirements, constraints, attributes, or needs that must be provided,
Policy allows rapid modification through easily updating rules, thus updating
technical behaviors of components in which those policies are used, without
-requiring rewrites of their software code. Policy permits simpler management /
-control of complex mechanisms via abstraction.
-
-The Closed Loop Automation Management Platform (CLAMP) provides a platform for
-managing control loops. CLAMP is used to manage a closed control loop,
-configure it with specific parameters for a particular network service, then
-deploy and decommission it. Once deployed, a user can also update the loop with
-new parameters during runtime, as well as suspend and restart it.
-
-6. Runtime Framework
-====================
-
-The runtime execution framework executes the rules and policies distributed by
-the design and creation environment.
-
-This allows for the distribution of policy enforcement and templates among
-various ONAP modules such as the Service Orchestrator (SO), Controllers, Data
-Collection, Analytics and Events (DCAE), Active and Available Inventory (A&AI),
-and a Security Framework. These components use common services that support
-logging, access control, Multi-Site State Coordination (MUSIC), which allow the
-platform to register and manage state across multi-site deployments. The
-External API provides access for third-party frameworks such as MEF, TM Forum
-and potentially others, to facilitate interactions between operator BSS and
-relevant ONAP components. The logging services also includes event based
-analysis capabilities to support post orchestration consistency analysis.
+requiring rewrites of their software code. Policy permits simpler
+management / control of complex mechanisms via abstraction.
+
+VNF SDK
+-------
+VND SDK provides the functionality to create VNF/PNF packages, test VNF
+packages and VNF ONAP compliance and store VNF/PNF packages and upload to/from
+a marketplace.
+
+VVP
+---
+VVP provides validation for the VNF Heat package.
+
+Runtime Framework
+=================
+The runtime execution framework executes the rules and policies and other
+models distributed by the design and creation environment.
+
+This allows for the distribution of models and policy among various ONAP
+modules such as the Service Orchestrator (SO), Controllers, Data Collection,
+Analytics and Events (DCAE), Active and Available Inventory (A&AI). These
+components use common services that support access control.
Orchestration
-------------
-
The Service Orchestrator (SO) component executes the specified processes by
automating sequences of activities, tasks, rules and policies needed for
on-demand creation, modification or removal of network, application or
-infrastructure services and resources. The SO provides orchestration at a very
-high level, with an end-to-end view of the infrastructure, network, and
-applications.
-
-The External API Northbound Interface component provides a standards-based
-interface between the BSS and various ONAP components, including Service
-Orchestrator, A&AI, and SDC. This provides an abstracted view of the platform
-within the existing BSS/OSS environment without lengthy, high-cost
-infrastructure integration. The Beijing release was the first of a series of
-enhancements in support of SDO collaborations, which are expected to support
-inter-operator exchanges and other use cases defined by associated standards
-bodies such as MEF, TM Forum and others.
+infrastructure services and resources, this includes VNFs, CNFs and PNFs,
+by conforming to industry standards such as ETSI, TMF.
+The SO provides orchestration at a very high level, with an end-to-end view
+of the infrastructure, network, and applications. Examples of this include
+BroadBand Service (BBS) and Cross Domain and Cross Layer VPN (CCVPN).
+The SO is modular and hierarchical to handle services and multi-level
+resources and Network Slicing, by leveraging pluggable adapters and delegating
+orchestration operations to NFVO (SO NFVO, VFC), VNFM, CNF Manager, NSMF
+(Network Slice Management Function), NSSMF (Network Slice Subnet Management
+Function).
+Starting from the Guilin release, the SO provides CNF orchestration support
+through integration of CNF adapter in ONAP SO:
+
+- Support for provisioning CNFs using an external K8S Manager
+- Support the Helm-based orchestration
+- Leverage the CNF Adapter to interact with the K8S Plugin in MultiCloud
+- Bring in the advantage of the K8S orchestrator and
+- Set stage for the Cloud Native scenarios
+
+3GPP (TS 28.801) defines three layer slice management function which include:
+
+- CSMF (Communication Service Management Function)
+- NSMF (Network Slice Management Function)
+- NSSMF (Network Slice Subnet Management Function)
+
+To realize the three layers, CSMF, NSMF and/or NSSMF are realized within ONAP,
+or use the external CSMF, NSMF or NSSMF. For ONAP-based network slice
+management, different choices can be made as follows. among them, ONAP
+orchestration currently supports options #1 and #4.
+
+|image3|
+
+**Figure 3: ONAP Network Slicing Support Options**
+
+
+Virtual Infrastructure Deployment (VID)
+---------------------------------------
+
+.. warning:: The ONAP :strong:`vid` project is :strong:`unmaintained`.
The Virtual Infrastructure Deployment (VID) application enables users to
instantiate infrastructure services from SDC, along with their associated
Policy-Driven Workload Optimization
-----------------------------------
-
The ONAP Optimization Framework (OOF) provides a policy-driven and model-driven
framework for creating optimization applications for a broad range of use
cases. OOF Homing and Allocation Service (HAS) is a policy driven workload
service specific constraints.
ONAP Multi-VIM/Cloud (MC) and several other ONAP components such as Policy, SO,
-A&AI etc. play an important role in enabling “Policy-driven
-Performance/Security-Aware Adaptive Workload Placement/ Scheduling” across
-cloud sites through OOF-HAS. OOF-HAS uses Hardware Platform Awareness (HPA),
-cloud agnostic intent capabilities and real-time capacity checks provided by
-ONAP MC to determine the optimal VIM/Cloud instances, which can deliver the
-required performance SLAs, for workload (VNF etc.) placement and scheduling
-(Homing). Operators now realize the true value of virtualization through fine
-grained optimization of cloud resources while delivering performance and
-security SLAs. For the Beijing release, this feature was available for the vCPE
-use case.
+A&AI etc. play an important role in enabling “Policy-driven Performance/
+Security-Aware Adaptive Workload Placement/ Scheduling” across cloud sites
+through OOF-HAS. OOF-HAS uses cloud agnostic Intent capabilities, and real-time
+capacity checks provided by ONAP MC to determine the optimal VIM/Cloud
+instances, which can deliver the required performance SLAs, for workload
+(VNF etc.) placement and scheduling (Homing). Operators now realize the true
+value of virtualization through fine grained optimization of cloud resources
+while delivering performance and security SLAs.
Controllers
-----------
-
Controllers are applications which are coupled with cloud and network services
and execute the configuration, real-time policies, and control the state of
distributed components and services. Rather than using a single monolithic
control layer, operators may choose to use multiple distinct controller types
that manage resources in the execution environment corresponding to their
-assigned controlled domain such as cloud computing resources (network
-configuration (SDN-C) and application (App-C). Also, the Virtual Function
-Controller (VF-C) provides an ETSI NFV compliant NFV-O function that is
-responsible for lifecycle management of virtual services and the associated
-physical COTS server infrastructure. VF-C provides a generic VNFM capability
-but also integrates with external VNFMs and VIMs as part of an NFV MANO stack.
-
-The new Multisite State Coordination (MUSIC) project records and manages state
-of the Portal and ONAP Optimization Framework to ensure consistency, redundancy
-and high availability across geographically distributed ONAP deployments.
+assigned controlled domain such as cloud computing resources (SDN-C).
+The Virtual Function Controller (VF-C) and SO NFVO provide an ETSI NFV
+compliant NFV-O function that is responsible for lifecycle management of
+virtual services and the associated physical COTS server infrastructure. VF-C
+provides a generic VNFM capability, and both VF-C and SO NFVO integrate with
+external VNFMs and VIMs as part of an NFV MANO stack.
+
+.. warning:: The ONAP :strong:`appc` project is :strong:`unmaintained`.
+
+ONAP has two application level configuration and lifecycle management modules
+called SDN-C and App-C. Both provide similar services (application level
+configuration using NetConf, Chef, Ansible, RestConf, etc.) and lifecycle
+management functions (e.g., stop, resume, health check, etc.).
+They share common code from CCSDK repo. However, there are some differences
+between these two modules (SDN-C uses CDS only for onboarding and
+configuration / LCM flow design, whereas App-C uses CDT for the LCM functions
+for self service to provide artifacts storing in App-C Database).
+SDN-C has been used mainly for Layer1-3 network elements and App-C is
+being used for Layer4-7 network functions. This is a very loose
+distinction and we expect that over time we will get better alignment and
+have common repository for controller code supporting application level
+configuration and lifecycle management of all network elements (physical or
+virtual, layer 1-7). Because of these overlaps, we have documented SDN-C and
+App-C together. ONAP Controller Family (SDN-C / App-C) configures and maintains
+the health of L1-7 Network Function (VNF, PNF, CNF) and network services
+throughout their lifecycle:
+
+- Configures Network Functions (VNF/PNF)
+- Provides programmable network application management platform:
+
+ - Behavior patterns programmed via models and policies
+ - Standards based models & protocols for multi-vendor implementation
+ - Extensible SB adapters such as Netconf, Ansible, Rest API, etc.
+ - Operation control, version management, software updates, etc.
+- Local source of truth
+ - Manages inventory within its scope
+ - Manages and stores state of NFs
+ - Supports Configuration Audits
+
+Controller Design Studio (CDS)
+------------------------------
+The Controller Design Studio (CDS) community in ONAP has contributed a
+framework to automate the resolution of resources for instantiation and any
+config provisioning operation, such as day0, day1 or day2 configuration. The
+essential function of CDS is to create and populate a controller blueprint,
+create a configuration file from this Controller blueprint, and associate at
+design time this configuration file (configlet) to a PNF/VNF/CNF during the
+design phase. CDS removes dependence on code releases and the delays they cause
+and puts the control of services into the hands of the service providers. Users
+can change a model and its parameters with great flexibility to fetch data from
+external systems (e.g., IPAM) that is required in real deployments. This makes
+service providers more responsive to their customers and able to deliver
+products that more closely match the needs of those customers.
Inventory
---------
-
Active and Available Inventory (A&AI) provides real-time views of a system’s
-resources, services, products and their relationships with each other, and in
-Casablanca it also retains a historical view. The views provided by A&AI relate
-data managed by multiple ONAP instances, Business Support Systems (BSS),
-Operation Support Systems (OSS), and network applications to form a
-“top to bottom” view ranging from the products end users buy, to the resources
-that form the raw material for creating the products. A&AI not only forms a
-registry of products, services, and resources, it also maintains up-to-date
-views of the relationships between these inventory items.
+resources, services, products and their relationships with each other, and also
+retains a historical view. The views provided by A&AI relate data managed by
+multiple ONAP instances, Business Support Systems (BSS), Operation Support
+Systems (OSS), and network applications to form a “top to bottom” view ranging
+from the products end users buy, to the resources that form the raw material
+for creating the products. A&AI not only forms a registry of products,
+services, and resources, it also maintains up-to-date views of the
+relationships between these inventory items.
To deliver the promised dynamism of SDN/NFV, A&AI is updated in real time by
the controllers as they make changes in the network environment. A&AI is
quickly via SDC catalog definitions, eliminating the need for lengthy
development cycles.
+Policy Framework
+----------------
+The Policy framework provides policy based decision making capability and
+supports multiple policy engines and can distribute policies through policy
+design capabilities in SDC, simplifying the design process.
+
Multi Cloud Adaptation
----------------------
-
Multi-VIM/Cloud provides and infrastructure adaptation layer for VIMs/Clouds
-in exposing advanced hardware platform awareness and cloud agnostic intent
-capabilities, besides standard capabilities, which are used by OOF and other
-components for enhanced cloud selection and SO/VF-C for cloud agnostic workload
-deployment. The cloud agnostic intent capabilities are newly introduced in the
-Casablanca release.
-
-7. Closed Control Loop Automation
-=================================
-
-Closed loop control is provided by cooperation among a number of design time
-and runtime elements. The Runtime loop starts with Data Collection, Analytics
-and Events (DCAE) and then moves through the loop of micro-services like Holmes
-for event detection, Policy for determining actions, and finally controllers
-and orchestrators to implement actions CLAMP is used to monitor the loops
-themselves. CLAMP, Policy and DCAE all have design time aspects to support the
+and K8s clusters in exposing advanced cloud agnostic intent capabilities,
+besides standard capabilities, which are used by OOF and other components
+for enhanced cloud selection and SO/VF-C for cloud agnostic workload
+deployment. The K8s plugin is in charge of deploying CNFs on the Kubernetes
+clusters using Kubernetes APIs.
+
+Data Collection Analytics and Events (DCAE)
+-------------------------------------------
+DCAE provides the capability to collect events, and host analytics applications
+(DCAE Services)
+
+Closed Control Loop Automation Management Platform (CLAMP)
+----------------------------------------------------------
+Closed loop control is provided by cooperation among a number of design-time
+and run-time elements. The Runtime loop starts with data collectors from Data
+Collection, Analytics and Events (DCAE). ONAP includes the following collectors
+: VES (VNF Event Streaming) for events, HV-VES for high-volume events, SNMP
+for SNMP traps, File Collector to receive files, and RESTCONF Collector to
+collect the notifications. After data collection/verification phase, data move
+through the loop of micro-services like Homes for event detection, Policy
+for determining actions, and finally, controllers and orchestrators to
+implement actions. The Policy framework is also used to monitor the loops
+themselves and manage their lifecycle. DCAE also includes a number of
+specialized micro-services to support some use-cases such as the Slice Analysis
+or SON-Handler. Some dedicated event processor modules transform collected data
+(SNMP, 3GPP XML, RESTCONF) to VES format and push the various data into data
+lake. CLAMP, Policy and DCAE all have design time aspects to support the
creation of the loops.
-We refer to this automation pattern as “closed control loop automation” in that
+We refer to this automation pattern as “Closed Control loop automation” in that
it provides the necessary automation to proactively respond to network and
service conditions without human intervention. A high-level schematic of the
“closed control loop automation” and the various phases within the service
Security) functionality. DCAE collects performance, usage, and configuration
data; provides computation of analytics; aids in troubleshooting; and publishes
events, data and analytics (e.g., to policy, orchestration, and the data lake).
-Another component, “Holmes”, connects to DCAE and provides alarm correlation
-for ONAP. In the Casablanca Release, DCAE evolved to support new analytics
-capabilities with PNDA (http://pnda.io/) as well as new data collection
-capabilities with High Volume VES and bulk performance management support.
-
-Working with the Policy Framework and CLAMP, these components detect problems
-in the network and identify the appropriate remediation. In some cases, the
-action will be automatic, and they will notify Service Orchestrator or one of
-the controllers to take action. In other cases, as configured by the operator,
-they will raise an alarm but require human intervention before executing the
-change. The policy framework is extended to support additional policy decision
-capabilities with the introduction of adaptive policy execution.
+Another component, Holmes, connects to DCAE and provides alarm correlation
+for ONAP, new data collection capabilities with High Volume VES, and bulk
+performance management support.
+
+Working with the Policy Framework (and embedded CLAMP), these components
+detect problems in the network and identify the appropriate remediation.
+In some cases, the action will be automatic, and they will notify the
+Service Orchestrator or one of the controllers to take action.
+In other cases, as configured by the operator, they will raise an alarm
+but require human intervention before executing the change. The policy
+framework is extended to support additional policy decision capabilities
+with the introduction of adaptive policy execution.
+
+Starting with the Honolulu-R8 and concluding in the Istanbul-R9 release, the
+CLAMP component was successfully integrated into the Policy component initially
+as a PoC in the Honolulu-R8 release and then as a fully integrated component
+within the Policy component in Istanbul-R9 release.
+CLAMP's functional role to provision Policy has been enhanced to support
+provisioning of policies outside of the context of a Control Loop and therefore
+act as a Policy UI. In the Istanbul release the CLAMP integration was
+officially released.
-|image3|
+|image4|
-**Figure 3: ONAP Closed Control Loop Automation**
+**Figure 4: ONAP Closed Control Loop Automation**
-8. Common Services
-==================
+Virtual Function Controller (VFC)
+---------------------------------
+VFC provides the NFVO capability to manage the lifecycle of network service and
+VNFs, by conforming to ETSI NFV specification.
+
+Data Movement as a Platform (DMaaP)
+-----------------------------------
+DMaaP provides data movement service such as message routing and data routing.
+
+Use Case UI (UUI)
+-----------------
+UUI provides the capability to instantiate the blueprint User Cases and
+visualize the state.
-ONAP provides common operational services for all ONAP components including
-activity logging, reporting, common data layer, access control, secret and
-credential management, resiliency, and software lifecycle management.
+CLI
+---
+ONAP CLI provides a command line interface for access to ONAP.
+
+External APIs
+-------------
+
+.. warning:: The ONAP :strong:`externalapi` project is :strong:`unmaintained`.
+
+External APIs provide services to expose the capability of ONAP.
+
+Shared Services
+===============
+
+.. warning:: The ONAP :strong:`logging` project is :strong:`unmaintained`.
+
+ONAP provides a set of operational services for all ONAP components including
+activity logging, reporting, common data layer, configuration, persistence,
+access control, secret and credential management, resiliency, and software
+lifecycle management.
These services provide access management and security enforcement, data backup,
-restoration and recovery. They support standardized VNF interfaces and
-guidelines.
+configuration persistence, restoration and recovery. They support standardized
+VNF interfaces and guidelines.
Operating in a virtualized environment introduces new security challenges and
-opportunities. ONAP provides increased security by embedding access controls
-in each ONAP platform component, augmented by analytics and policy components
+opportunities. ONAP provides increased security by embedding access controls in
+each ONAP platform component, augmented by analytics and policy components
specifically designed for the detection and mitigation of security violations.
-9. ONAP Modeling
-================
+Configuration Persistence Service (CPS)
+---------------------------------------
+The Configuration Persistence Service (CPS) provides storage for real-time
+run-time configuration and operational parameters that need to be used by ONAP.
+Several services ranging from SDN-C, DCAE and the network slicing use case
+utilize CPS for these purposes. Its details in
+:ref:`CPS - Configuration Persistence Service<onap-cps:architecture>`.
+ONAP Modeling
+=============
ONAP provides models to assist with service design, the development of ONAP
service components, and with the improvement of standards interoperability.
-
-Models are essential part for the design time and runtime framework
+Models are an essential part for the design time and runtime framework
development. The ONAP modeling project leverages the experience of member
companies, standard organizations and other open source projects to produce
models which are simple, extensible, and reusable. The goal is to fulfill the
among ONAP components and explore a common model to improve the
interoperability of ONAP.
-In the Casablanca Release, ONAP supports the following Models:
+ONAP supports various models detailed in the Modeling documentation.
+
+The modeling project includes the ETSI catalog component, which provides the
+parser functionalities, as well as additional package management
+functionalities.
-- A VNF Descriptor Information Model based on ETSI NFV IFA011 v.2.4.1 with
- appropriate modifications aligned with ONAP requirements;
-- A VNF Descriptor Model based on TOSCA implementation based on the IM and
- follow the same model definitions in ETSI NFV SOL001 v 0.6.0.
-- VNF Package format leveraging the ETSI NFV SOL004 specification.
-- A Network Service Descriptor (NSD) has been realized by the VFC (using the
- modelling project parsing capabilities).
+Industry Alignment
+==================
+ONAP support and collaboration with other standards and open source communities
+is evident in the architecture.
-These models enable ONAP to interoperate with implementations based on
-standards, and improve the industry collaboration.
+- MEF and TMF interfaces are used in the External APIs
+- In addition to the ETSI-NFV defined VNFD and NSD models mentioned above, ONAP
+ supports the NFVO interfaces (SOL005 between the SO and VFC, SOL003 from
+ either the SO or VFC to an external VNFM).
+- Further collaboration includes 5G/ORAN & 3GPP Harmonization, Acumos DCAE
+ Integration, and CNCF Telecom User Group (TUG).
-10. ONAP Blueprints
-===================
+Read this whitepaper for more information:
+`The Progress of ONAP: Harmonizing Open Source and Standards <https://www.onap.org/wp-content/uploads/sites/20/2019/04/ONAP_HarmonizingOpenSourceStandards_032719.pdf>`_
-ONAP can support an unlimited number of use cases. However, to provide concrete
-examples of how to use ONAP to solve real-world problems, the community has
-created a set of blueprints. In addition to helping users rapidly adopt the
-ONAP platform through end-to-end solutions, these blueprints also help the
-community prioritize their work. With the ONAP Casablanca release, we
-introduced two new blueprints: 5G and CCVPN. Prior blueprints, vCPE, VoLTE and
-vFW/vDNS have been ported to Casablanca as well.
+ONAP Blueprints
+===============
+ONAP can support an unlimited number of use cases, within reason. However, to
+provide concrete examples of how to use ONAP to solve real-world problems, the
+community has created a set of blueprints. In addition to helping users rapidly
+adopt the ONAP platform through end-to-end solutions, these blueprints also
+help the community prioritize their work.
5G Blueprint
------------
-The 5G blueprint is a multi-release effort, with Casablanca introducing first
-set of capabilities around PNF integration, edge automation, real-time
-analytics, network slicing, data modeling, homing, scaling, and network
-optimization. The combination of eMBB that promises peak data rates of 20 Mbps,
-uRLLC that guarantees sub millisecond response times and MMTC that can support
-0.92 devices per sq. ft. brings with it some unique requirements. First, ONAP
-needs to support network services that include PNFs in addition to VNFs. Next
-ONAP needs to support edge cloud onboarding as network services will no longer
-be restricted to just large datacenters but will proliferate a large number of
-distributed edge locations. Finally, ONAP needs to collect real-time
-performance data for analytics and policy driven closed-loop automation. These
-requirements have led to several initiatives within ONAP to holistically address
-the 5G blueprint.
+The 5G blueprint is a multi-release effort, with five key initiatives around
+end-to-end service orchestration, network slicing, PNF/VNF lifecycle management
+, PNF integration, and network optimization. The combination of eMBB that
+promises peak data rates of 20 Mbps, uRLLC that guarantees sub-millisecond
+response times, MMTC that can support 0.92 devices per sq. ft., and network
+slicing brings with it some unique requirements. First ONAP needs to manage the
+lifecycle of a network slice from initial creation/activation all the way to
+deactivation/termination. Next, ONAP needs to optimize the network around real
+time and bulk analytics, place VNFs on the correct edge cloud, scale and heal
+services, and provide edge automation. ONAP also provides self organizing
+network (SON) services such as physical cell ID allocation for new RAN sites.
+These requirements have led to the five above-listed initiatives and have been
+developed in close cooperation with other standards and open source
+organizations such as 3GPP, TM Forum, ETSI, and O-RAN Software Community.
-|image4|
+|image5|
+
+**Figure 5. End-to-end 5G Service**
-**Figure 4. Disaggregated Hybrid RAN**
+Read the `5G Blueprint <https://www.onap.org/wp-content/uploads/sites/20/2019/07/ONAP_CaseSolution_5G_062519.pdf>`_
+to learn more.
-Read the 5G Blueprint to learn more.
+A related activity outside of ONAP is called the 5G Super Blueprint where
+multiple Linux Foundation projects are collaborating to demonstrate an
+end-to-end 5G network. In the short-term, this blueprint will showcase
+thre major projects: ONAP, Anuket (K8S NFVI), and Magma (LTE/5GC).
-Virtual CPE Blueprint
----------------------
+|image6|
-This blueprint addresses a residential use case, where the services offered to
-a subscriber are currently restricted to what is designed into the broadband
-residential gateway. In this blueprint, the customer has a slimmed down
-physical CPE (pCPE), that only consists of bridging functionality, attached to
-a traditional broadband network such as DSL or DOCSIS (Figure 5). A tunnel is
-established to a data center hosting various VNFs providing a much larger set
-of services to the subscriber at a significantly lower cost to the operator.
-ONAP supports complex orchestration and management of both virtual and underlay
-connectivity with two key components–SDN-C, which manages connectivity service
-, and APP-C, which manages virtualization services. In this case, ONAP provides
-a common service orchestration layer for the end-to-end service. This blueprint
-shows advanced functionality such as scaling, change management , HPA and cloud
-agnostic intent.
+**Figure 6. 5G Super Blueprint Initial Integration Activity**
-|image5|
+In the long-term, the 5G Super Blueprint will integrate O-RAN-SC and LF Edge
+projects as well.
+
+Residential Connectivity Blueprints
+-----------------------------------
+Two ONAP blueprints (vCPE and BBS) address the residential connectivity use
+case.
+
+Virtual CPE (vCPE)
+..................
+Currently, services offered to a subscriber are restricted to what is designed
+into the broadband residential gateway. In the blueprint, the customer has a
+slimmed down physical CPE (pCPE) attached to a traditional broadband network
+such as DSL, DOCSIS, or PON (Figure 5). A tunnel is established to a data
+center hosting various VNFs providing a much larger set of services to the
+subscriber at a significantly lower cost to the operator. In this blueprint,
+ONAP supports complex orchestration and management of open source VNFs and both
+virtual and underlay connectivity.
+
+|image7|
+
+**Figure 7. ONAP vCPE Architecture**
+
+Read the `Residential vCPE Use Case with ONAP blueprint <https://www.onap.org/wp-content/uploads/sites/20/2018/11/ONAP_CaseSolution_vCPE_112918FNL.pdf>`_
+to learn more.
+
+Broadband Service (BBS)
+.......................
+This blueprint provides multi-gigabit residential internet connectivity
+services based on PON (Passive Optical Network) access technology. A key
+element of this blueprint is to show automatic re-registration of an ONT
+(Optical Network Terminal) once the subscriber moves (nomadic ONT) as well as
+service subscription plan changes. This blueprint uses ONAP for the design,
+deployment, lifecycle management, and service assurance of broadband services.
+It further shows how ONAP can orchestrate services across different locations
+(e.g. Central Office, Core) and technology domains (e.g. Access, Edge).
+
+|image8|
-**Figure 5. ONAP vCPE Architecture**
+**Figure 8. ONAP BBS Architecture**
-Read the Residential vCPE Use Case with ONAP blueprint to learn more.
+Read the `Residential Connectivity Blueprint <https://www.onap.org/wp-content/uploads/sites/20/2019/07/ONAP_CaseSolution_BBS_062519.pdf>`_
+to learn more.
Voice over LTE (VoLTE) Blueprint
--------------------------------
+This blueprint uses ONAP to orchestrate a Voice over LTE service. The VoLTE
+blueprint incorporates commercial VNFs to create and manage the underlying
+vEPC and vIMS services by interworking with vendor-specific components,
+including VNFMs, EMSs, VIMs and SDN controllers, across Edge Data Centers and
+a Core Data Center. ONAP supports the VoLTE use case with several key
+components: SO, VF-C, SDN-C, and Multi-VIM/ Cloud. In this blueprint, SO is
+responsible for VoLTE end-to-end service orchestration working in collaboration
+with VF-C and SDN-C. SDN-C establishes network connectivity, then the VF-C
+component completes the Network Services and VNF lifecycle management
+(including service initiation, termination and manual scaling) and FCAPS
+(fault, configuration, accounting, performance, security) management. This
+blueprint also shows advanced functionality such as scaling and change
+management.
-This blueprint uses ONAP to orchestrate a Voice over LTE service. This
-blueprint demonstrates how a Mobile Service Provider (SP) could deploy VoLTE
-services based on SDN/NFV. The VoLTE blueprint incorporates commercial VNFs to
-create and manage the underlying vEPC and vIMS services by interworking with
-vendor-specific components, including VNFMs, EMSs, VIMs and SDN controllers,
-across Edge Data Centers and a Core Data Center. ONAP supports the VoLTE use
-case with several key components: SO, VF-C, SDN-C, and Multi-VIM/ Cloud. In
-this blueprint, SO is responsible for VoLTE end-to-end service orchestration
-working in collaboration with VF-C and SDN-C. SDN-C establishes network
-connectivity, then the VF-C component completes the Network Services and VNF
-lifecycle management (including service initiation, termination and manual
-scaling) and FCAPS (fault, configuration, accounting, performance, security)
-management. This blueprint also shows advanced functionality such as scaling
-and change management.
+|image9|
-|image6|
+**Figure 9. ONAP VoLTE Architecture Open Network Automation Platform**
-**Figure 6. ONAP VoLTE Architecture Open Network Automation Platform**
+Read the `VoLTE Blueprint <https://www.onap.org/wp-content/uploads/sites/20/2018/11/ONAP_CaseSolution_VoLTE_112918FNL.pdf>`_
+to learn more.
-Read the VoLTE with ONAP blueprint to learn more.
+Optical Transport Networking (OTN)
+----------------------------------
+Two ONAP blueprints (CCVPN and MDONS) address the OTN use case. CCVPN addresses
+Layers 2 and 3, while MDONS addresses Layers 0 and 1.
CCVPN (Cross Domain and Cross Layer VPN) Blueprint
---------------------------------------------------
+..................................................
CSPs, such as CMCC and Vodafone, see a strong demand for high-bandwidth, flat,
high-speed OTN (Optical Transport Networks) across carrier networks. They also
want to provide a high-speed, flexible and intelligent service for high-value
customers, and an instant and flexible VPN service for SMB companies.
-|image7|
+|image10|
-**Figure 7. ONAP CCVPN Architecture**
+**Figure 10. ONAP CCVPN Architecture**
The CCVPN (Cross Domain and Cross Layer VPN) blueprint is a combination of SOTN
(Super high-speed Optical Transport Network) and ONAP, which takes advantage of
the orchestration ability of ONAP, to realize a unified management and
-scheduling of resource and services. It achieves cross-domain orchestration and
-ONAP peering across service providers. ONAP supports the CCVPN use case with
-several key components: SO, VF-C, SDN-C, Policy, Holmes and DCAE. In this
-blueprint, SO is responsible for CCVPN end-to-end service orchestration working
-in collaboration with VF-C and SDN-C. SDN-C establishes network connectivity,
-then the VF-C component completes the Network Services and VNF lifecycle
-management. ONAP peering across CSPs uses east-west API which is being aligned
-with the MEF Interlude API. The key innovations in this use case are physical
-network discovery and modeling, cross-domain orchestration across multiple
-physical networks, cross operator end-to-end service provisioning and
-close-loop reroute for cross-domain service.
-
-Read the CCVPN with ONAP blueprint to learn more.
+scheduling of resources and services. It achieves cross-domain orchestration
+and ONAP peering across service providers. In this blueprint, SO is responsible
+for CCVPN end-to-end service orchestration working in collaboration with VF-C
+and SDN-C. SDN-C establishes network connectivity, then the VF-C component
+completes the Network Services and VNF lifecycle management. ONAP peering
+across CSPs uses an east-west API which is being aligned with the MEF Interlude
+API. CCVPN, in conjunction with the IBN use case, offers intent based cloud
+leased line service. The key innovations in this use case are physical network
+discovery and modeling, cross-domain orchestration across multiple physical
+networks, cross operator end-to-end service provisioning, close-loop reroute
+for cross-domain service, dynamic changes (branch sites, VNFs) and intelligent
+service optimization (including AI/ML).
+
+Read the `CCVPN Blueprint <https://www.onap.org/wp-content/uploads/sites/20/2019/07/ONAP_CaseSolution_CCVPN_062519.pdf>`_
+to learn more.
+
+MDONS (Multi-Domain Optical Network Service) Blueprint
+......................................................
+While CCVPN addresses the automation of networking layers 2 and 3, it does not
+address layers 0 and 1. Automating these layers is equally important because
+providing an end-to-end service to their customers often requires a manual and
+complex negotiation between CSPs that includes both the business arrangement
+and the actual service design and activation. CSPs may also be structured such
+that they operate multiple networks independently and require similar
+transactions among their own networks and business units in order to provide an
+end-to-end service. The MDONS blueprint created by AT&T, Orange, and Fujitsu
+solves the above problem. MDONS and CCVPN used together can solve the OTN
+automation problem in a comprehensive manner.
+
+|image11|
+
+**Figure 11. ONAP MDONS Architecture**
+
+Intent Based Network (IBN) Use Case
+-----------------------------------
+Intent technology can reduce the complexity of management without getting into
+the intricate details of the underlying network infrastructure and contribute
+to efficient network management. This use case performs a valuable business
+function that can further reduce the operating expenses (OPEX) of network
+management by shifting the paradigm from complex procedural operations to
+declarative intent-driven operations
+
+|image12|
+
+**Figure 12. ONAP Intent-Based Networking Use Case**
+
+3GPP 28.812, Intent driven Management Service (Intent driven MnS), defines
+some key concepts that are used by this initiative. The Intent Based Networking
+(IBN) use case includes the development of an intent decision making. This use
+case has initially been shown for a smart warehouse, where the intent is to
+increase the output volume of automated guided vehicles (AVG) and the network
+simply scales in response. The intent UI is implemented in UUI and the
+components of the intent framework interact with many components of ONAP
+including SO, A&AI, Policy, DCAE and CDS.
vFW/vDNS Blueprint
------------------
-
-The virtual firewall, virtual DNS blueprint is a basic demo to verify that
-ONAP has been correctly installed and to get a basic introduction to ONAP.
-The blueprint consists of 5 VNFs: vFW, vPacketGenerator, vDataSink, vDNS and
+The virtual firewall, virtual DNS blueprint is a basic demo to verify that ONAP
+has been correctly installed and to get a basic introduction to ONAP. The
+blueprint consists of 5 VNFs: vFW, vPacketGenerator, vDataSink, vDNS and
vLoadBalancer. The blueprint exercises most aspects of ONAP, showing VNF
onboarding, network service creation, service deployment and closed-loop
automation. The key components involved are SDC, CLAMP, SO, APP-C, DCAE and
-Policy.
+Policy. In the recent releases, the vFW blueprint has been demonstrated by
+using a mix of a CNF and VNF and entirely using CNFs.
+
+Verified end to end tests
+=========================
+Use cases
+---------
+Various use cases have been tested for the Release. Use case examples are
+listed below. See detailed information on use cases, functional requirements,
+and automated use cases can be found here:
+:ref:`Verified Use Cases<onap-integration:docs_usecases_release>`.
+
+- E2E Network Slicing
+- 5G OOF (ONAP Optimization Framework) SON (Self-Organized Network)
+- CCVPN-Transport Slicing
+
+Functional requirements
+-----------------------
+Various functional requirements have been tested for the Release. Detailed
+information can be found in the
+:ref:`Verified Use Cases<onap-integration:docs_usecases_release>`.
+
+- xNF Integration
-Read the vFW/vDNS with ONAP blueprint to learn more.
+ - ONAP CNF orchestration - Enhancements
+ - PNF PreOnboarding
+ - PNF Plug & Play
+
+- Lifecycle Management
+
+ - Policy Based Filtering
+ - Bulk PM / PM Data Control Extension
+ - Support xNF Software Upgrade in association to schema updates
+ - Configuration & Persistency Service
+
+- Security
+
+ - CMPv2 Enhancements
+
+- Standard alignment
+
+ - ETSI-Alignment for Guilin
+ - ONAP/3GPP & O-RAN Alignment-Standards Defined Notifications over VES
+ - Extend ORAN A1 Adapter and add A1 Policy Management
+
+- NFV testing Automatic Platform
+
+ - Support for Test Result Auto Analysis & Certification
+ - Support for Test Task Auto Execution
+ - Support for Test Environment Auto Deploy
+ - Support for Test Topology Auto Design
Conclusion
==========
-
-The ONAP platform provides a comprehensive platform for real-time,
-policy-driven orchestration and automation of physical and virtual network
-functions that will enable software, network, IT and cloud providers and
-developers to rapidly automate new services and support complete lifecycle
-management.
+The ONAP platform provides a comprehensive platform for real-time, policy-
+driven orchestration and automation of physical and virtual network functions
+that will enable software, network, IT and cloud providers and developers to
+rapidly automate new services and support complete lifecycle management.
By unifying member resources, ONAP will accelerate the development of a vibrant
ecosystem around a globally shared architecture and implementation for network
-automation—with an open standards focus—faster than any one product could on
+automation—with an open standards focus— faster than any one product could on
its own.
Resources
=========
-Watch videos about the major platform components on YouTube and Youku
-Read about how ONAP can be deployed using containers
+See the Resources page on `ONAP.org <https://www.onap.org/resources>`_
-.. |image1| image:: media/ONAP-toplevel.png
- :width: 6.5in
- :height: 3.13548in
+.. |image1| image:: media/ONAP-architecture.png
+ :width: 800px
.. |image2| image:: media/ONAP-fncview.png
- :width: 6.5in
- :height: 3.409in
-.. |image3| image:: media/ONAP-closedloop.png
- :width: 6in
- :height: 2.6in
-.. |image4| image:: media/ONAP-5G.png
- :width: 6in
- :height: 2.6in
-.. |image5| image:: media/ONAP-vcpe.png
- :width: 6.5in
- :height: 3.28271in
-.. |image6| image:: media/ONAP-volte.png
- :width: 6.5in
- :height: 3.02431in
-.. |image7| image:: media/ONAP-ccvpn.png
- :width: 6.5in
- :height: 3.02431in
+ :width: 800px
+.. |image3| image:: media/ONAP-NetworkSlicingOptions.png
+ :width: 800px
+.. |image4| image:: media/ONAP-closedloop.png
+ :width: 800px
+.. |image5| image:: media/ONAP-5G.png
+ :width: 800px
+.. |image6| image:: media/ONAP-5GSuperBP-Integration.png
+ :width: 800px
+.. |image7| image:: media/ONAP-vcpe.png
+ :width: 800px
+.. |image8| image:: media/ONAP-bbs.png
+ :width: 800px
+.. |image9| image:: media/ONAP-volte.png
+ :width: 800px
+.. |image10| image:: media/ONAP-ccvpn.png
+ :width: 800px
+.. |image11| image:: media/ONAP-mdons.png
+ :width: 800px
+.. |image12| image:: media/ONAP-IntentBasedNetworking.png
+ :width: 800px
\ No newline at end of file
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