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QoS Constrained Path Optimization Algorithm in NFV/SDN Environment

Authors:
Yujeong Oh
Jonghun Kim
Jaiyong Lee

Keywords: network functions virtualisation, software-defined networking, QoS, link capacity allocation

Abstract:
Network Functions Virtualisation (NFV) and Software-Defined Networking (SDN) have emerged as promising technologies in the telecommunication business. An important problem of NFV architecture is how to allocate virtualised resources to network services. Efficient resource allocation should consider not only the status of the Virtualized Network Function (VNF) but also the network condition. We propose a Quality of Service (QoS) constrained path optimization algorithm to set up the optimized VNF Forwarding Graphs (VNFFG) considering an available bandwidth. When the link bandwidth is not sufficient, competitor selection and priority switching of the super problem could find the optimized VNFFGs to accept more service requests by utilizing replaceable VNFs.

Pages: 130 to 131

Copyright: Copyright (c) IARIA, 2016

Publication date: February 21, 2016

Published in: conference

ISSN: 2308-4413

ISBN: 978-1-61208-450-3

Location: Lisbon, Portugal

Dates: from February 21, 2016 to February 25, 2016