Virtualisation of Network Functions and the SDN Improving the Economics of the Network

Main Article Content

Sundar Iyer

Keywords

SDN, NFV

Abstract

A 'telco' or telecommunications service provider’s network is both the source of its high cost base and source of differentiation. Telcos incur the high capital and operational costs of customised, vendor-proprietary hardware as they seek differentiation through network capacity addition, service quality and coverage improvement. These decisions to invest in the network are motivated by supply-side competition and demand particularly cross-segment demand for data services, much of which is for ‘over-the-top’ social networking and video streaming services that the telco can only partially monetise. This has created a dichotomy of margin erosion a high cost to serve with diminishing returns on additional capacity investments. However, an approach that blends IT, networking and data centre technologies promises to improve this equation, as evidenced by primary research, surveys and proof-of-concepts by Hewlett Packard. Network Functions Virtualisation (NFV) offers to immediately lower the capital and operational cost base by implementing a growing set of previously closed network platforms and functions on standard IT hardware. This will set the scene in the next few years for faster software-defined network (SDN) additions which will improve utilisation of network assets and allow lower-cost experiments to flex and scale capacity to improve network services and introduce new innovations. This article provides an introductory view of these emergent developments.

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References

ACMA. 2013. 'Australia’s mobile digital economy ACMA confirms usage, choice, mobility and intensity on the rise', Australian Communications & Media Authority, http://www.acma.gov.au/theACMA/Library/Corporate-library/Corporate-publications/australia-mobile-digital-economy. Retrieved 7 May 2014.
Andreessen, Marc. 2011. 'Why Software Is Eating The World', Wall Street Journal, 20 Aug 2011, http://online.wsj.com/news/articles/SB10001424053111903480904576512250915629460. Retrieved 7 May 2014.
ATIS (Alliance for Telecommunications Industry Solutions). 2014. http://www.atis.org/about/index.asp. Retrieved 3 May 2014.
Bingemann, M. 2013. 'Vodafone splurges on network to win back customers and restore brand', The Australian, 19 Feb 2013, http://www.theaustralian.com.au/technology/vodafone-splurges-on-network-to-win-back-customers-and-restore-brand/story-fn4iyzsr-1226580662375#mm-premium, Retrieved 1 May 2014.
Bingemann, M. 2014. 'Optus gears up for battle', The Australian, 19 April 2014, http://www.theaustralian.com.au/business/optus-gears-up-for-battle/story-e6frg8zx-1226889442241, Retrieved 1 May 2014.
Chiosi, M. (AT&T); Clarke, D., Willis, P., Reid, A., (BT); Feger, J., Bugenhagen, M., Khan, W., Fargano, M. (Century Link); Cui, C., Deng, H. (China Mobile); Benitez, J. (Colt), Michel, U., Damker, H. (Deutsche Telekom); Ogaki, K., Matsuzaki, T. (KDDI); Fukui, M. Shimano, K. (NTT); Delisle, D., Loudier, Q., Kolias, C. (Orange); Guardini, I., Demaria, E., Minerva, R., Manzalini, A. (Telecom Italia); L?pez, D., Salguero, F.J.R. (Telefonica); Ruhl, F. (Telstra); Sen, P. (Verizon). 2012. 'Network Functions Virtualisation, An Introduction, Benefits, Enablers, Challenges & Call for Action', SDN and OpenFlow World Congress, 22-24 October 2012, Darmstadt-Germany, http://portal.etsi.org/nfv/nfv_white_paper.pdf, Retrieved 1 May 1 2014.
GigaOm. 2014. 'SDN, NFV and Open Source - The Operator’s View', Mar 2014, http://www.opendaylight.org/publications/sdn-nfv-and-open-source-operators-view, Retrieved 21 May, 2014
Edlund, J. 2014. Presentation on Network Functions Virtualisation, 'The New Business of the Network for CSPs', April 2014. .
ETSI. 2013. ETSI Industry Specifications Group (ISG) Network Functions Virtualisation, ETSI GS NFV 001 v1.1.1, October 2013, 'Network Function Virtualisation Use Cases', http://www.etsi.org/deliver/etsi_gs/NFV/001_099/001/01.01.01_60/gs_NFV001v010101p.pdf, retrieved 3 May 3 2014.
Hewlett-Packard. 2014. NFV Survey of 50 CIOs and CTOs from Tier 1 & 2 operators, January 2014, Survey conducted by Coleman Parkes Research on behalf of HP in Europe, Middle East, Africa, Asia Pacific, North America and Central and Latin America.
IDC. 2014. 'Worldwide Telecommunications Predictions 2014', www.idc.com/getdoc.jsp?containerId=IDC_P29872
IETF (Internet Engineering Task Force). 2014. https://datatracker.ietf.org/doc/draft-bitar-i2rs-service-chaining/ retrieved 22 June 2014
Informa Telecoms & Media research. 2014. Quoted in www.ospmag.com/issue/article/Are-You-Hungry-For-SDN
Open Networking Foundation. 2014. https://www.opennetworking.org/, retrieved 3 May 3 2014.
Ovum. 2013. Consumer OTT VoIP Outlook 20013-18, November 2013.
Ramli, D. 2014. 'Telstra will keep investing in mobile', Australian Financial Review, http://www.afr.com/p/business/companies/telstra_will_keep_investing_in_mobile_RaKiz6AEH689yQpHYPqU3H, Retrieved 1 May 1 2014.
SDN Central. 2014. 'SDN and NFV Technology Trends to Watch in 2014', 6 January 2014. www.sdncentral.com/news/sdn-nfv-technology-trends-watch-2014/2014/01/
Sen, P. 2013. 'Defining NFV: Network Functions Virtualisation', https://www.brighttalk.com/webcast/6985/69053 Retrieved 2 May 2 2014.
SNS Research. 2013. 'The SDN, NFV & Network Virtualization Bible: 2014 - 2020', October 2013, www.snstelecom.com/the-sdn-nfv-network-virtualization-bible
TeleManagement Forum. 2014. www.tmforum.org, retrieved 3 May 3 2014.