Transport Network Function Virtualization

Author

Vilalta, Ricard ; Munoz, Raul ; Mayoral, Arturo ; Casellas, Ramon ; Martinez, Ricardo ; Lopez, Victor ; Lopez, Diego

Author_Institution

Centre Tecnol. de Telecomunicacions de Catalunya, Castelldefels, Spain

Volume

33

Issue

8

fYear

2015

fDate

April15, 15 2015

Firstpage

1557

Lastpage

1564

Abstract

In this paper, we present a network function virtualization (NFV) architecture to deploy different virtualized network functions (VNF) on an optical transport network. NFV concepts do not only apply to data plane functions (i.e., packet processing or forwarding), but also to control plane functions, such as path computation. First, we focus on the IT and network resources that are virtualized to provide the required VNFs. Second, we provide an example of VNF on top of the virtualized infrastructure, by proposing a path computation element (PCE) architecture to deploy a PCE by means of NFV. The instances of the virtualized PCE are deployed on demand, but they are perceived as a single-network element. We present the benefits of such approach by providing experimental validation.

Keywords

optical fibre networks; virtualisation; NFV concepts; PCE architecture; VNF; optical transport network; path computation element architecture; transport network function virtualization architecture; virtualized network functions; Computer architecture; IP networks; Optical switches; Protocols; Virtual machining; Virtualization; Cloud and Network Orchestration; Cloud and network orchestration; GMPLS; NFV Orchestration and Management; NFV orchestration and management; Network Function Virtualization; OpenDaylight; OpenStack; Path Computation Element; network function virtualization; openDaylight; openStack; path computation element;

fLanguage

English

Journal_Title

Lightwave Technology, Journal of

Publisher

ieee

ISSN

0733-8724

Type

jour

DOI

10.1109/JLT.2015.2390655

Filename

7006678