Network Function Virtualization (NFV) has attracted significant interest in recent years due to its agility to adopt new technology and its flexibility in on-demand deployment of network functions. A major topic in the field of NFV research is the allocation and orchestration of VNF instances to provide satisfying network services according to user demands. The paper proposes and investigates a new solution for a scalable NFV Orchestrator allowing for a reduction of the needed time for the Service Function Chain routing and the allocation of cloud and bandwidth resources. That is obtained by abstracting and simplifying in the NFV orchestrator the knowledge of both the network topology and the resource amount available in the datacenters in which the Virtual Network Functions are executed. The solution is based on the Segment Routing paradigm that allows to implement the scalable orchestration at data plane level. Finally we show how the proposed solution reduce by 90% the time needed to execute an SFC routing and resource allocation algorithm with respect to a traditional orchestration solution.

Proposal and investigation of a scalable NFV orchestrator based on segment routing data/control plane / Eramo, V.; Lavacca, F. G.; Catena, Tiziana; Polverini, M.; Cianfrani, A.. - (2018), pp. 426-431. (Intervento presentato al convegno 14th International Conference on Network and Service Management, CNSM 2018 and Workshops, 1st International Workshop on High-Precision Networks Operations and Control, HiPNet 2018 and 1st Workshop on Segment Routing and Service Function Chaining, SR+SFC 2018 tenutosi a ita).

Proposal and investigation of a scalable NFV orchestrator based on segment routing data/control plane

Eramo, V.
;
Lavacca, F. G.;CATENA, TIZIANA;Polverini, M.;Cianfrani, A.
2018

Abstract

Network Function Virtualization (NFV) has attracted significant interest in recent years due to its agility to adopt new technology and its flexibility in on-demand deployment of network functions. A major topic in the field of NFV research is the allocation and orchestration of VNF instances to provide satisfying network services according to user demands. The paper proposes and investigates a new solution for a scalable NFV Orchestrator allowing for a reduction of the needed time for the Service Function Chain routing and the allocation of cloud and bandwidth resources. That is obtained by abstracting and simplifying in the NFV orchestrator the knowledge of both the network topology and the resource amount available in the datacenters in which the Virtual Network Functions are executed. The solution is based on the Segment Routing paradigm that allows to implement the scalable orchestration at data plane level. Finally we show how the proposed solution reduce by 90% the time needed to execute an SFC routing and resource allocation algorithm with respect to a traditional orchestration solution.
2018
14th International Conference on Network and Service Management, CNSM 2018 and Workshops, 1st International Workshop on High-Precision Networks Operations and Control, HiPNet 2018 and 1st Workshop on Segment Routing and Service Function Chaining, SR+SFC 2018
Network function virtualization; scalable orchestrator; segment routing; software defined network; management information systems; computer networks and communications; signal processing; control and optimization; safety, risk, reliability and quality
04 Pubblicazione in atti di convegno::04b Atto di convegno in volume
Proposal and investigation of a scalable NFV orchestrator based on segment routing data/control plane / Eramo, V.; Lavacca, F. G.; Catena, Tiziana; Polverini, M.; Cianfrani, A.. - (2018), pp. 426-431. (Intervento presentato al convegno 14th International Conference on Network and Service Management, CNSM 2018 and Workshops, 1st International Workshop on High-Precision Networks Operations and Control, HiPNet 2018 and 1st Workshop on Segment Routing and Service Function Chaining, SR+SFC 2018 tenutosi a ita).
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11573/1227231
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