Research Area: Software Defined Networks
In recent years, demands on wireless network for services mobility, for ever more resources, and for a growing variety of services, have exploded. Consequently, network management as we have known it up to now, with its silos and rigid approach, cannot meet these expectations. If we add the Internet of Things, the network has to become dynamic, adaptable and flexible. In this context, the industry and forums have specified and standardized a new architecture based on Software Defined Network (SDN), Network Function Virtualization, and Orchestration. These new paradigms, and especially Orchestration, will have a great impact on the Legacy Network Management Systems and the Operations Support System (OSS). We present a state of the art review of the main architecture approaches in the SDN standardization forums and discuss the place of the Orchestration in these different architectures. Then we focus on the Orchestration at the application layer and show how, together with SDN and Network Function Virtualization, they influence the Operation and Business Support Systems of next-generation network management. Finally, we analyze the roles and functions of this Orchestrator with regard to upper management, as well as the several open challenges in this domain.
Keywords:
SDN
NFV
Orchestration
OSS
Dynamicity
Adaptability
Author(s) Name: Guy Saadon, Yoram Haddad, Noemie Simoni
Journal name: Computer Standards & Interfaces
Conferrence name:
Publisher name: Elsevier
DOI: 10.1016/j.csi.2018.07.003
Volume Information: Volume 62, February 2019, Pages 17-31
