5G is considered to be the technology that will accommodate the development and management of innovative services with stringent and diverse requirements from end users, calling for new business models from the industry. In this context, the development and efficient management of Network Services (NS) serving specific vertical industries and spanning across multiple administrative domains and heterogeneous infrastructures is challenging. The main challenges regard the efficient provision of NSs considering the Quality of Service (QoS) requirements per vertical industry along with the optimal usage of the allocated resources. Towards addressing these challenges, this paper details an innovative approach that we have developed for managing and orchestrating such NSs, called SONATA, and compare it with OSM and Cloudify, which are two of the most known open-source Management and Orchestration (MANO) frameworks. In addition to examining the supported orchestration mechanisms per MANO framework, an evaluation of main operational and functional KPIs is provided based on experimentation using a real testbed. The final aim is the identification of their strong and weak points, and the assessment of their suitability for serving diverse vertical industry needs, including of course the Internet of Things (IoT) service ecosystem.
Network Functions Virtualization is focused on\ud migrating traditional hardware-based network functions to\ud software-based appliances running on standard high volume\ud severs. There are a variety of challenges facing early adopters of\ud Network Function Virtualizations; key among them are resource\ud and service mapping, to support virtual network function orchestration.\ud Service providers need efficient and effective mapping\ud capabilities to optimally deploy network services. This paper\ud describes TeNOR, a micro-service based network function virtualisation\ud orchestrator capable of effectively addressing resource\ud and network service mapping. The functional architecture and\ud data models of TeNOR are described, as well as two proposed\ud approaches to address the resource mapping problem. Key\ud evaluation results are discussed and an assessment of the mapping\ud approaches is performed in terms of the service acceptance ratio\ud and scalability of the proposed approaches
The 5G network solutions currently standardised and deployed do not yet enable the full potential of pervasive networking and computing envisioned in 5G initial visions: network services and slices with different QoS profiles do not span multiple operators; security, trust and automation is limited. The evolution of 5G towards a truly production-level stage needs to heavily rely on automated end-to-end network operations, use of distributed Artificial Intelligence (AI) for cognitive network orchestration and management and minimal manual interventions (zero-touch automation). All these elements are key to implement highly pervasive network infrastructures. Moreover, Distributed Ledger Technologies (DLT) can be adopted to implement distributed security and trust through Smart Contracts among multiple non-trusted parties. In this paper, we propose an initial concept of a zero-touch security and trust architecture for ubiquitous computing and connectivity in 5G networks. Our architecture aims at crossdomain security & trust orchestration mechanisms by coupling DLTs with AI-driven operations and service lifecycle automation in multi-tenant and multi-stakeholder environments. Three representative use cases are identified through which we will validate the work which will be validated in the test facilities at 5GBarcelona and 5TONIC/Madrid.
This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License (CC BY-NC-ND 4.0). Created by The Institute of Electrical and Electronics Engineers (IEEE) for the benefit of humanity.
Unlike previous generations, 5G will be more than just a mobile network. 5G will have broader coverage, including humans, but also cars, robots, and things in general; and will target verticals like eHealth, Automotive, or Industry 4.0, just name a few. To deal with this, 5G will need to be faster, more efficient, reliable, flexible, agile, and, at the same time, cost less. For this to be possible, 5G has to engage with the best-of-breed of the emerging technologies, where NFV is definitely in the top list. ETSI NFV is today in an advanced stage of standardization. In particular, many MANO platforms are today available, with different levels of development, varying on the number of features and maturity levels. In this context, this paper describes the 5GTANGO Service Platform, an open source MANO framework currently under development in the scope of the 5GTANGO H2020 project, and whose main developments started in a previous H2020 project named SONATA. In particular, some features that go beyond the state-of-the-art are approached, either considering standardization or implementations available. Those features are Policy, SLA and Slicing.
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