Machine Learning for Performance-Aware Virtual Network Function Placement

• URL: http://arxiv.org/abs/2001.07787v1
• Date: Mon, 13 Jan 2020 14:08:39 GMT
• Title: Machine Learning for Performance-Aware Virtual Network Function Placement
• Authors: Dimitrios Michael Manias, Manar Jammal, Hassan Hawilo, Abdallah Shami, Parisa Heidari, Adel Larabi, Richard Brunner
• Abstract summary: We develop a machine learning decision tree model that learns from the effective placement of the various Virtual Network Function instances forming a Service Function Chain (SFC) The model takes several performance-related features from the network as an input and selects the placement of the various VNF instances on network servers with the objective of minimizing the delay between dependent VNF instances.
• Score: 3.5558885788605323
• License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
• Abstract: With the growing demand for data connectivity, network service providers are faced with the task of reducing their capital and operational expenses while simultaneously improving network performance and addressing the increased connectivity demand. Although Network Function Virtualization (NFV) has been identified as a solution, several challenges must be addressed to ensure its feasibility. In this paper, we address the Virtual Network Function (VNF) placement problem by developing a machine learning decision tree model that learns from the effective placement of the various VNF instances forming a Service Function Chain (SFC). The model takes several performance-related features from the network as an input and selects the placement of the various VNF instances on network servers with the objective of minimizing the delay between dependent VNF instances. The benefits of using machine learning are realized by moving away from a complex mathematical modelling of the system and towards a data-based understanding of the system. Using the Evolved Packet Core (EPC) as a use case, we evaluate our model on different data center networks and compare it to the BACON algorithm in terms of the delay between interconnected components and the total delay across the SFC. Furthermore, a time complexity analysis is performed to show the effectiveness of the model in NFV applications.

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