New ITU-T standard on software-defined networking

ITU members have achieved first-stage approval (‘consent’) of a key ITU-T standard on software-defined networking (SDN), a promising route towards network virtualization and a major shift in networking technology set to introduce lasting transformations to the ICT industry.

The new standard is the product of ITU-T Study Group 13 (Future networks including cloud computing, mobile and NGN)

Recommendation ITU-T Y.3300 “Framework of Software-Defined Networking” provides a basis for the further study of SDN by providing its definition, objectives, capabilities, requirements and high-level architecture.

SDN and network virtualization denote perhaps the most significant overhaul of networking technology since the 1970s. Carrier networks have traditionally relied on control and data planes tightly coupled in proprietary solutions, giving rise to increases in network complexity and management and operational costs as upgrades to networks introduced new services and technologies.

In contrast, SDN is a networking technology that allows centralized, programmable control- and data-plane abstraction; separating the control and data planes to give network operators the ability to establish and manage new virtualized resources and networks without deploying new hardware technologies. Alongside the greater flexibility and cost efficiency that SDN affords network operators, its provision of an alternative to the introduction of new hardware has positive implications for environmental efficiency.

More information on ITU-T Study Group 13 can be found here…


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