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What is Orchestrator

Chapter 1
Emerging Automation Techniques for the Future Internet
An orchestrator defines and manages policies and service levels by utilizing automated workflows and change management. Orchestrators are typically purpose built for a specific domain, such as the NFV Orchestrators defined by the ETSI NFV MANO standard. Network orchestrators provide a communication layer with the network devices that is vendor agnostic and exposes that communication northbound to other systems via APIs.
Published in Chapter:
Model-Centric Fulfillment Operations and Maintenance Automation
Patrick Moore (Itential, LLC, USA)
Copyright: © 2019 |Pages: 20
DOI: 10.4018/978-1-5225-7146-9.ch001
Abstract
As networks have evolved, there has been an evolution in how they are managed as well. This evolution has seen a move from manual configuration via command line interface (CLI) to script-based automation and eventually to a template-based approach with workflow to coordinate multiple templates and scripts. The next step in this evolution is the introduction of models to provide a more dynamic capability than is in place today. This chapter will discuss three major layers of modelling that should be considered during implementation of this approach: device models focused on the configuration of the hardware itself; service models focused on the customer or network facing services that leverage the hardware level configuration; and operational models focused on people, processes, and tools involved in application of device and service models. This includes the orchestration of activities with other tools, such as operational support systems (OSS) and business support systems (BSS).
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Chapter 1
Software-Defined Networking: An Architectural Enabler for the IoT
An SDN controller that has a view of the entire network and coordinates other local SDN controllers covering portions of the network to implement global network policies.
Published in Chapter: Software-Defined Networking: An Architectural Enabler for the IoT; From: Social, Legal, and Ethical Implications of IoT, Cloud, and Edge Computing Technologies
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Chapter 8
ONAP: An Open Source Toolkit for Zero Touch Automation
An orchestrator is usually based on a set of predefined models, policies, rules, or workflows and executes the required set of actions to deploy on-demand services. The goal of an orchestrator is also to guarantee that services run as expected. Different types of orchestrators are involved in the operation of network services. Some orchestrators focus on virtual resource layer such as OpenStack/Heat or Kubernetes, on network layer such as controllers like OpenDayLight while others like ONAP have a broader scope to cover end-to-end services while interacting with the vertical orchestration layer stack.
Published in Chapter: ONAP: An Open Source Toolkit for Zero Touch Automation; From: Design Innovation and Network Architecture for the Future Internet
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