Journal ArticleDOI
Service Function Chaining in Next Generation Networks: State of the Art and Research Challenges
TLDR
A service function chaining taxonomy is introduced that considers architecture and performance dimensions as the basis for the subsequent state of the art analysis and concludes with a gap analysis of existing solutions and the identification of future research challenges.Abstract:
Service function chaining is a network capability that provides support for application-driven-networking through the ordered interconnection of service functions. The lifecycle management of service function chains is enabled by two recently emerged technologies, software defined networking and network function virtualization, that promise a number of efficiency, effectiveness, and flexibility gains. This article introduces a service function chaining taxonomy that considers architecture and performance dimensions as the basis for the subsequent stateof- the-art analysis. The article concludes with a gap analysis of existing solutions and the identification of future research challenges.read more
Citations
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Journal ArticleDOI
On Multi-Access Edge Computing: A Survey of the Emerging 5G Network Edge Cloud Architecture and Orchestration
TL;DR: This paper analyzes the MEC reference architecture and main deployment scenarios, which offer multi-tenancy support for application developers, content providers, and third parties, and elaborates further on open research challenges.
Journal ArticleDOI
Network Slicing and Softwarization: A Survey on Principles, Enabling Technologies, and Solutions
TL;DR: The diverse use cases and network requirements of network slicing, the pre-slicing era, considering RAN sharing as well as the end-to-end orchestration and management, encompassing the radio access, transport network and the core network are outlined.
Journal ArticleDOI
Digital Twin in the IoT Context: A Survey on Technical Features, Scenarios, and Architectural Models
TL;DR: This article analyses a set of possible evolution paths for the DT considering its possible usage as a major enabler for the softwarization process.
Journal ArticleDOI
SDN/NFV-Based Mobile Packet Core Network Architectures: A Survey
TL;DR: This survey aims at providing a comprehensive survey of state-of-the-art research work, which leverages SDN and NFV into the most recent mobile packet core network architecture, evolved packet core.
Journal ArticleDOI
An Overview of Network Slicing for 5G
TL;DR: A comprehensive survey of 5G network slicing, including network function virtualization and modularization, dynamic service chaining, management and orchestration, and the latest progress in 3GPP standardization and industry implementation is presented.
References
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Proceedings ArticleDOI
SIMPLE-fying middlebox policy enforcement using SDN
TL;DR: SIMPLE, a SDN-based policy enforcement layer for efficient middlebox-specific "traffic steering", is presented, a significant step toward addressing industry concerns surrounding the ability of SDN to integrate with existing infrastructure and support L4-L7 capabilities.
Proceedings ArticleDOI
StEERING: A software-defined networking for inline service chaining
Ying Zhang,Neda Beheshti,Ludovic Beliveau,Geoffrey Lefebvre,Ravi Manghirmalani,Ramesh Mishra,Ritun Patneyt,Meral Shirazipour,Ramesh Subrahmaniam,Catherine Truchan,Mallik Tatipamula +10 more
TL;DR: StEERING, short for SDN inlinE sERvices and forwardlNG, is a scalable framework for dynamically routing traffic through any sequence of middleboxes, built upon the recent software-defined networking architecture and OpenFlow protocol.
Proceedings ArticleDOI
FlowTags: enforcing network-wide policies in the presence of dynamic middlebox actions
TL;DR: FlowTags is proposed, an extended SDN architecture in which middleboxes add Tags to outgoing packets, to provide the necessary causal context to ensure consistent policy enforcement in the presence of dynamic traffic modifications.
Proceedings ArticleDOI
Research Directions in Network Service Chaining
Wolfgang John,Kostas Pentikousis,George Agapiou,Eduardo Jacob,Mario Kind,Antonio Manzalini,Fulvio Risso,Dimitri Staessens,Rebecca Steinert,Catalin Meirosu +9 more
TL;DR: This paper details prominent research challenges during the typical lifecycle of a network service chain in an operational telecommunications network, including service chain description, programming, deployment, and debugging, and summarizes the security considerations.
Journal ArticleDOI
Toward a telco cloud environment for service functions
Joao Soares,Carlos Gonçalves,Bruno Parreira,Paulo Tavares,Jorge Carapinha,João Paulo Barraca,Rui L. Aguiar,Susana Sargento +7 more
TL;DR: This article identifies how téleos can benefit from the abovementioned paradigms, and explores some of the aspects that still need to be addressed in the NFV domain.