Reliability-aware service provisioning in NFV-enabled enterprise datacenter networks

2016 12th International Conference on Network and Service Management (CNSM) Pub Date : 2016-10-01 DOI:10.1109/CNSM.2016.7818411

Long Qu, C. Assi, K. Shaban, Maurice J. Khabbaz

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引用次数: 40

Abstract

Network Function Visualization (NFV) enables the complete decoupling of Network Functions (NFs) (e.g., firewall, intrusion detection, routing, etc.) from physical middleboxes used to implement service-specific and strictly ordered chains of these NFs. Precisely, NFV allows for dispatching NFs as plain software instances called Virtual Network Functions (VNFs) running on virtual machines hosted by one or more industry standard physical machines. This, however, introduces vulnerabilities (e.g., hard-/soft-ware failures, etc) causing the break down of the entire VNF chain. The functionality of NFV-enabled networks impose higher reliability requirements than traditional networks. This paper encloses an in-depth investigation of a reliability-aware joint VNF placement and flow routing optimization problem. This problem is formulated as a complex Integer Linear Program (ILP). A heuristic is proposed in order to overcome this ILP's complexity. Thorough numerical analysis are conducted to verify and assert the correctness and effectiveness of the proposed heuristic.

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支持nfv的企业数据中心网络中的可靠性感知业务发放

网络功能可视化(Network Function Visualization, NFV)可以将网络功能(Network Functions, NFs)(如防火墙、入侵检测、路由等)与用于实现特定服务和严格有序的NFs链的物理中间体完全解耦。确切地说，NFV允许将NFs作为称为虚拟网络功能(Virtual Network Functions, VNFs)的普通软件实例在由一个或多个行业标准物理机托管的虚拟机上运行。然而，这会引入漏洞(例如，硬件/软件故障等)，导致整个VNF链的中断。与传统网络相比，nfv对网络的可靠性要求更高。本文深入研究了可靠性感知联合VNF布置与流路优化问题。该问题被表述为一个复整数线性规划(ILP)。为了克服这种ILP的复杂性，提出了一种启发式算法。进行了全面的数值分析，以验证和断言所提出的启发式的正确性和有效性。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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2016 12th International Conference on Network and Service Management (CNSM)

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