New Network / IT Command: Virtualized Function Performance for a Programmable Infrastructure

Abstract : In the framework of Network Function Virtualization (NFV), we address in this work the performance analysis of virtualized network functions (VNFs), wherein the virtualization of the radio access network (namely, Cloud-RAN) is the driving use-case. The overarching principle of network virtualization consists of replacing network functions, which were so far running on dedicated and proprietary hardware, with open software applications running on shared general purpose servers. The complexity of virtualization is in the softwarization of low-layer network functions (namely, PHY functions) because their execution must meet strict latency requirements. Throughout this work, we evaluate the performance of VNFs in terms of latency which consid- ers the total amount of time that is required to process VNFs in cloud computing systems. We notably investigate the relevance of resource pooling and statistical multiplexing when available cores in a data center are shared by all active VNFs. We perform VNF modeling by means of stochastic service systems. Proposed queuing models reveal the behavior of high performance computing architectures based on parallel processing and enable dimensioning the required com- puting capacity in data centers.
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https://hal.inria.fr/tel-01884431
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Submitted on : Monday, October 1, 2018 - 7:04:25 AM
Last modification on : Tuesday, December 10, 2019 - 3:08:21 PM
Long-term archiving on: Wednesday, January 2, 2019 - 1:04:37 PM

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Veronica Karina Quintuna Rodriguez. New Network / IT Command: Virtualized Function Performance for a Programmable Infrastructure. Networking and Internet Architecture [cs.NI]. Sorbonne Université, 2018. English. ⟨tel-01884431⟩

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