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Software Defined Networking

  • 10 Aug 2019
  • 2 min read

Software Defined Networking (SDN) is a network architecture approach that enables the network to be intelligently and centrally controlled, using software applications.

SDN enables network behavior to be controlled by the software that resides beyond the networking devices that provide physical connectivity.

What is the need of SDN?

  • The monumental growth in multimedia content,the impact of increasing mobile usage, and increasing competition, pressuresizes the business to reduce costs.
  • To keep pace, many global technology companies are turning to SDN technology to revolutionize network design and operations.

How SDN can bring a paradigm shift?

  • By opening up traditionally closed network platforms and implementing a common SDN control layer, operators can manage the entire network and its devices consistently.This will allow optimum use of resources.
  • By decoupling the hardware from the software, operators can introduce innovative, differentiated new services rapidly— free from the constraints of closed and proprietary platforms.
  • SDN architectures usher in a new era of openness—enabling multi-vendor interoperability.
  • SDN can manage the network efficiently, thereby improving the performance of Big Data applications.
    • SDN can greatly facilitate big data acquisition, transmission, storage and processing.
  • SDN too can benefit from big data, in terms of traffic engineering and countering security attacks.

What are the issues in SDN?

  • Creating SDN architecture will be a difficult process for many small and mid range organizations. Thereby SDN will provide advantage to technology giants and thereby further augment global technological inequality.
  • There is much clamour about data privacy. In this context, SDN too will get into the data protection debate.


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