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Title
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Service orchestration in NFV-based traditional and emerging cloud environments : state of the art and research challenges
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Author
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Abstract
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| Internet services grow increasingly demanding and diverse. Privacy and security concerns, coupled with requirements of ultra-low latency, close to zero downtime, and high throughput, are leading to a shift in network design. This combination of non-technical and technical service requirements is pushing cloud infrastructure to the edge of the network. While cloud services initially interconnected resources within a single data center, services are also being orchestrated across edge clouds. Traditional and new cloud architectures rely on network functions virtualization for the management and orchestration of network services. However, the orchestration of highly diverse and geographically distributed resources brings its own challenges, as networking becomes a bottleneck, failure rates of nodes are higher, and orchestration objectives increasingly conflict with one another. Hence, specific orchestration algorithms are needed that can adapt the placement configuration to the local cloud infrastructure and balance orchestration goals through SLAs. This article investigates the state of the art in service orchestration for NFV-based cloud environments along with the research challenges related to orchestrating resources within and across edge locations, to finally identify and discuss opportunities for future research. |
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Language
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English
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Source (journal)
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IEEE communications magazine / Institute of Electrical and Electronics Engineers. - New York, N.Y., 1979, currens
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Publication
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New York, N.Y.
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IEEE
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2020
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ISSN
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0163-6804
[print]
1558-1896
[online]
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DOI
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10.1109/MCOM.001.1900759
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Volume/pages
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58
:8
(2020)
, p. 76-81
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ISI
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000569427100001
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Full text (Publisher's DOI)
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Full text (publisher's version - intranet only)
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