Energy efficiency with service availability guarantee for Network Function Virtualization

Mai, L; Ding, Y; Zhang, X; Fan, L; Yu, S; Xu, Z

Energy efficiency with service availability guarantee for Network Function Virtualization

Mai, L Ding, Y Zhang, X Fan, L Yu, S

Xu, Z

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Publisher:: Elsevier BV
Publication Type:: Journal Article
Citation:: Future Generation Computer Systems, 2021, 119, pp. 140-153
Issue Date:: 2021-06-01

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Field	Value	Language
dc.contributor.author	Mai, L
dc.contributor.author	Ding, Y
dc.contributor.author	Zhang, X
dc.contributor.author	Fan, L
dc.contributor.author	Yu, S https://orcid.org/0000-0003-4485-6743
dc.contributor.author	Xu, Z
dc.date.accessioned	2021-04-28T07:41:46Z
dc.date.available	2021-04-28T07:41:46Z
dc.date.issued	2021-06-01
dc.identifier.citation	Future Generation Computer Systems, 2021, 119, pp. 140-153
dc.identifier.issn	0167-739X
dc.identifier.uri	http://hdl.handle.net/10453/148495
dc.description.abstract	Following the trend of Network Function Virtualization (NFV), dedicated hardware middleboxes are replaced with innovative and flexible software middleboxes also known as Virtual Network Functions (VNFs). An ordered sequence of VNFs composing a logical service is called Service Function Chain (SFC). VNFs are generally run on commodity servers. In this way, the capital and operational expenditures of buying and maintaining dedicated hardware for telecom operators can be greatly reduced. One of the key issues in NFV is the optimal VNF placement and service chaining to achieve energy efficiency. However, the current NFV energy saving approaches seem to consider energy minimization as the only objective to be optimized. Little or no attention is given to other important aspects, e.g., service availability, which is paramountly important to fulfill Service Level Agreement (SLA) for telecom operators. This paper investigates the energy efficiency optimization with service availability guarantee in NFV-enabled networks. We firstly propose a novel green orchestration NFV architecture. Then, an energy-efficient VNF placement framework guaranteeing service availability is presented under the proposed architecture, and evaluated by extensive simulations. Open research issues and technical challenges in this emerging area are also presented.
dc.language	en
dc.publisher	Elsevier BV
dc.relation.ispartof	Future Generation Computer Systems
dc.relation.isbasedon	10.1016/j.future.2021.02.002
dc.rights	info:eu-repo/semantics/closedAccess
dc.subject	0803 Computer Software, 0805 Distributed Computing, 0806 Information Systems
dc.subject.classification	Distributed Computing
dc.title	Energy efficiency with service availability guarantee for Network Function Virtualization
dc.type	Journal Article
utslib.citation.volume	119
utslib.for	0803 Computer Software
utslib.for	0805 Distributed Computing
utslib.for	0806 Information Systems
pubs.organisational-group	/University of Technology Sydney
pubs.organisational-group	/University of Technology Sydney/Faculty of Engineering and Information Technology
pubs.organisational-group	/University of Technology Sydney/Faculty of Engineering and Information Technology/School of Computer Science
utslib.copyright.status	closed_access	*
dc.date.updated	2021-04-28T07:41:46Z
pubs.publication-status	Accepted
pubs.volume	119

Abstract:

Following the trend of Network Function Virtualization (NFV), dedicated hardware middleboxes are replaced with innovative and flexible software middleboxes also known as Virtual Network Functions (VNFs). An ordered sequence of VNFs composing a logical service is called Service Function Chain (SFC). VNFs are generally run on commodity servers. In this way, the capital and operational expenditures of buying and maintaining dedicated hardware for telecom operators can be greatly reduced. One of the key issues in NFV is the optimal VNF placement and service chaining to achieve energy efficiency. However, the current NFV energy saving approaches seem to consider energy minimization as the only objective to be optimized. Little or no attention is given to other important aspects, e.g., service availability, which is paramountly important to fulfill Service Level Agreement (SLA) for telecom operators. This paper investigates the energy efficiency optimization with service availability guarantee in NFV-enabled networks. We firstly propose a novel green orchestration NFV architecture. Then, an energy-efficient VNF placement framework guaranteeing service availability is presented under the proposed architecture, and evaluated by extensive simulations. Open research issues and technical challenges in this emerging area are also presented.

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http://hdl.handle.net/10453/148495