Context-aware service composition and delivery in NGSONs over SDN

NGSON is an IEEE sponsored effort to standardize an open service ecosystem where different stakeholders may cooperate to satisfy users' ever changing requirements by composing and delivering services dynamically across different service providers and network operators' domains. A main distinguishing feature of NGSON is context awareness, that is, the capability of collecting, processing, and using context information to drive the interactions of the NGSON overlay nodes with service and network operators' infrastructures for guaranteeing an optimal user experience. Recent advances in network control and management technologies, such as SDN, NFV, and service-oriented networking paradigms, are expected to make the network effectively able to cope with application service requirements in a more flexible, timely, and agile manner. In this article we discuss how NGSON, which already incorporates several aspects of virtualization, could take advantage of network virtualization mechanisms and programmable traffic steering capabilities to enhance and effectively support context-aware service composition along with adaptive service delivery. We propose an architectural model for NGSON that leverages these novel network service control capabilities and illustrate through a use case how this model could effectively be put into operation.

[1]  Myung-Ki Shin,et al.  Toward future networks: A viewpoint from ITU-T , 2013, IEEE Communications Magazine.

[2]  Filip De Turck,et al.  The fluid internet: service-centric management of a virtualized future internet , 2014, IEEE Communications Magazine.

[3]  Ieee Std,et al.  IEEE Standard for the Functional Architecture of Next Generation Service Overlay Networks , 2011 .

[4]  Pedro Neves,et al.  Challenges to support edge-as-a-service , 2014, IEEE Communications Magazine.

[5]  Fulvio Risso,et al.  Research Directions in Network Service Chaining , 2013, 2013 IEEE SDN for Future Networks and Services (SDN4FNS).

[6]  Adrian Farrel,et al.  A PCE-Based Architecture for Application-Based Network Operations , 2015, RFC.

[7]  Thierry Turletti,et al.  A Survey of Software-Defined Networking: Past, Present, and Future of Programmable Networks , 2014, IEEE Communications Surveys & Tutorials.

[8]  Jinkyung Hwang,et al.  Next generation service overlay networks (NGSON) , 2012, IEEE Commun. Mag..

[9]  Meral Shirazipour,et al.  StEERING: A software-defined networking for inline service chaining , 2013, 2013 21st IEEE International Conference on Network Protocols (ICNP).

[10]  Seung-Ik Lee,et al.  NGSON: features, state of the art, and realization , 2012, IEEE Communications Magazine.

[11]  Athanasios V. Vasilakos,et al.  A Survey on Service-Oriented Network Virtualization Toward Convergence of Networking and Cloud Computing , 2012, IEEE Transactions on Network and Service Management.