Software Defined Network;
A Next Generation Technology for
Advancement of Networking

Author - 

Sandeep Singh
R. A. Khan
Alka Agrawal


The Software Defined Networking (SDN) is an emerging network architecture where network control is decoupled from forwarding and is directly programmable. The explosion of mobile devices and content, server virtualization and advent of cloud services are among the trends driving the networking industry to reexamine traditional network architectures. Many conventional networks are hierarchical, built with tiers of Ethernet switches arranged in a tree structure. This design made sense when client-server computing was dominant, but such a static architecture is all suited to the dynamic computing and storage needs of today’s enterprise data centers, campuses and carrier environments. Some of the key computing trends driving the need for a new network paradigm include: challenging traffic patterns, consumarization of IT, rise of cloud services and big data transactions


SDN, Open flow Protocol, SDN controlled software.


  • Global Environment for Network Innovations. Web site

  • Mark Handley Orion Hodson Eddie Kohler. “XORP: An Open Platform for Network Research,” ACM SIGCOMM Hot Topics in Networking, 2002.

  • Eddie Kohler, Robert Morris, Benjie Chen, John Jannotti, and M. Frans Kaashoek. “The Click modular router,” ACM Transactions on Computer Systems 18(3), August 2000, pages 263-297. 

  • J. Turner, P. Crowley, J. Dehart, A. Freestone, B. Heller, F. Kuhms, S. Kumar, J. Lockwood, J. Lu, M.Wilson, C. Wiseman, D. Zar. “Supercharging PlanetLab - High Performance, Multi-Application, Overlay Network Platform,” ACM SIGCOMM ’07, August 2007, Kyoto, Japan. 

  • NetFPGA: Programmable Networking Hardware. Web site

  • The OpenFlow Switch Specification. Available at http:// 

  • Martin Casado, Michael J. Freedman, Justin Pettit, Jianying Luo, Nick McKeown, Scott Shenker. “Ethane: Taking Control of the Enterprise,” ACM SIGCOMM ’07, August 2007, Kyoto, Japan. 

  • Natasha Gude, Teemu Koponen, Justin Pettit, Ben Pfaff, Martin Casadao, Nick McKeown, Scott Shenker, “NOX: Towards an Operating System for Networks,” In submission. Also: