Breaking down network slicing : hierarchical orchestration of end-to-end networks
| Autor: | Wei Liu, Luiz A. DaSilva, Ingrid Moerman, Xianjun Jiao, Johann M. Marquez-Barja, Natal Vieira de Souza Neto, Sofie Pollin, Joao F. Santos |
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| Jazyk: | angličtina |
| Rok vydání: | 2020 |
| Předmět: |
Technology
Computer Networks and Communications Computer science Distributed computing Cloud computing 0805 Distributed Computing 02 engineering and technology Engineering End-to-end principle Server 1005 Communications Technologies 0202 electrical engineering electronic engineering information engineering Resource management Orchestration (computing) Electrical and Electronic Engineering business.industry Wireless network Quality of service Engineering Electrical & Electronic 020206 networking & telecommunications Provisioning Computer Science Applications 0906 Electrical and Electronic Engineering Software deployment Telecommunications Orchestration Mass communications Resource allocation Networking & Telecommunications business Engineering sciences. Technology |
| Zdroj: | IEEE communications magazine |
| ISSN: | 0163-6804 |
| Popis: | Network slicing is one of the key enabling techniques for 5G, allowing Network Providers (NPs) to support services with diverging requirements on top of their physical infrastructure. In this paper, we address the limited support and oversimplified resource allocation on different network segments of existing End-to-End (E2E) orchestration solutions. We propose a hierarchical orchestration scheme for E2E networks, breaking down the E2E resource management and network slicing problems per network segment. We introduce a higherlevel orchestrator, the hyperstrator, to coordinate the distributed orchestrators and deploy Network Slices (NSs) across multiple network segments. We developed a prototype implementation of the hyperstrator and validated our hierarchical orchestration concept with two proof-of-concept experiments, showing the NS deployment and the impact of the resource allocation per network segment on the performance of NSs. The results show that the distributed nature of our orchestration architecture introduces negligible overhead for provisioning NSs in our particular setting, and confirm the need of a hyperstrator for coordinating network segments and ensuring consistent QoS for NSs. Accepted version |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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