2020/01/27 by Idris Badmus, Badmus, Idris, Abdelquoddouss Laghrissi +5
Computer Science · Engineering · #Advanced Optical Network Technologies #FOS: Computer and information sciences #Interconnection Networks and Systems #Networking and Internet Architecture (cs.NI) #Software-Defined Networks and 5G
paper · pdf · doi:10.48550/arxiv.2001.09673
openalex publication_date 2020/01/27 · openalex created_date 2022/09/28 · openalex updated_date 2026/07/28
The concept of a softwarized network leveraging technologies such as SDN and\nNFV comes with different merits such as decreased Operational Expenses (OPEX)\nand less dependency on underlying hardware components. With the amount of\nincreased flexibility, reconfigurability and programmability attributed to\nfuture technologies (i.e. 5G and beyond), and towards the complete network\nvirtualization and softwarization, a new set of requirements or parameters can\nbe identified affecting the latency in a virtualized network. In this paper, we\nidentify different latency requirements for a virtualized network. These\nrequirements include the Virtual Network Function (VNF) deployment time,\nestablishment or connection time and application instantiation time. We further\ntest how some factors such as VNFs resource usage, the applications running\nwithin the VNF and the shared status of the VNF, coordinately affect the\nidentified latency requirement for a virtualized network. Experimentally, for\nperformance analysis, we deploy a softwarized network based on the ETSI NFV\narchitecture, using open source tools. The results show that the new set of\nlatency requirements is relevant for consideration in order to achieve an\noverall ultra reliable low latency and how different the factors can affect\nthese new requirements, especially in the core network. Furthermore, the result\nof our performance analysis proves the trade off between latency of a\nvirtualized network and the resource usage of the VNFs\n