Resilient Virtual Network Function Placement Model Based on Recovery Time Objectives

Naoki Hyodo, Takehiro Sato, Ryoichi Shinkuma, Eiji Oki

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

This paper proposes a virtual network function (VNF) placement model for service chaining that minimizes the cost of using computation resources when no failure occurs while guaranteeing recovery against any single facility node failure within the recovery time objective (RTO) defined for each service. The proposed model adaptively allocates computation resources to each service under its RTO constraint. The proposed model introduces two sharing methods of computation resources among multiple service chains. The first method allows sharing a virtual machine (VM) where a VNF is scheduled to run after a failure, which contributes to suppressing the number of VMs reserved in preparation for a failure. The second method allows sharing computation capability used for VMs, which prevents unnecessary VNF scale-up that requires additional computation resources. A simulation study verifies that the proposed model reduces the cost of using computation resources compared to comparative models.

Original languageEnglish
Title of host publication2020 IEEE 21st International Conference on High Performance Switching and Routing, HPSR 2020
PublisherIEEE Computer Society
ISBN (Electronic)9781728148465
DOIs
Publication statusPublished - 2020 May
Externally publishedYes
Event21st IEEE International Conference on High Performance Switching and Routing, HPSR 2020 - Newark, United States
Duration: 2020 May 112020 May 14

Publication series

NameIEEE International Conference on High Performance Switching and Routing, HPSR
Volume2020-May
ISSN (Print)2325-5595
ISSN (Electronic)2325-5609

Conference

Conference21st IEEE International Conference on High Performance Switching and Routing, HPSR 2020
Country/TerritoryUnited States
CityNewark
Period20/5/1120/5/14

Keywords

  • failure recovery
  • integer linear programming
  • recovery time objective
  • service chaining
  • virtual network function

ASJC Scopus subject areas

  • Hardware and Architecture
  • Electrical and Electronic Engineering

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