SDN FEATURE NEWS

Nokia: Some Wireless Operators Are Starting Small with SDN

By Paula Bernier April 13, 2016

Years ago, when we started to hear a lot about telephone companies deploying fiber in their access networks, different telcos employed varying architectures and timelines for deployment. A similar thing is happening today, as we’re seeing a fair amount of variation in carriers’ approaches to and timelines for network functions virtualization and software-defined networking adoption. As Nokia’s Volker Held recently commented, several carriers are starting small with SDN and different wireless operators’ paths to the new software-centric architecture are quite varied.

As Sue Marek reported for SDxCentral, Nokia’s 5G marketing head Held said NFV and SDN will be key for wireless operators as they move from 4G to 5G, enabling them to quickly scale their networks and create virtual sub-networks that can be employed for larger bandwidth applications.

Speaking of SDN and the ability to create more agile and software-centric networks, Nokia networks has recently been talking about the need for flexible service chaining. Flexible service chaining allows for more efficient use of network resources by sending traffic only where it needs to go. It also is positioned to enable service providers to more easily monetize their networks due to improved control and enhancement of services.

Flexible service chaining is addressed in the Nokia CloudBand solution, which catalogs functions and dynamically orchestrates and adapts service chains between functions on demand. And it integrates with the SDN controller from Nuage to allow for secure policy-based service chains between resources.

Nokia also has been talking this year about the need for optical transport to evolve to the more dynamic nature of networking, and has enhanced its 1830 Photonic Service Switches to allow for that. These network elements support DWDM P-OTN transport and can address such applications and services as broadband backhaul, carrier Ethernet, data center interconnect, metro and long-haul transport, multicast video, and wavelength services. Control can be handled via distributed GMPLS and centralized software-defined networking.




Edited by Stefania Viscusi

Executive Editor, TMC

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