Resource Requirements for Reliable Service Function Chaining

Abstract : In the context of Software-Defined Networks (SDN), Network Function Virtualization (NFV) is a new network paradigm in which network functions are implemented in software as Virtual Network Functions (VNFs). To meet the demand, VNFs are next interconnected to form different complete end-to-end services, also known as a Service Function Chains (SFCs). We study the problem of deploying reliable Service Function Chains over a virtualized network function architecture. While there is a need for reliable service function chaining, there is a high cost to pay for it in terms of bandwidth and VNF processing requirements. We investigate two different protection mechanisms and discuss their resource requirements, as well as the latency of their paths. For each mechanism, we develop a scalable exact mathematical model using column generation.
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Andrea Tomassilli, Nicolas Huin, Frédéric Giroire, Brigitte Jaumard. Resource Requirements for Reliable Service Function Chaining. 2018 IEEE International Conference on Communications (ICC 2018), May 2018, Kansas City, United States. ⟨10.1109/ICC.2018.8422774⟩. ⟨hal-01921096⟩

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