Software-Defined Networking: Creating Self-Healing, Distributed Architecture for the Cloud


This white paper provides an overview of SDN, a software-defined networking reference architecture in the cloud, and some relevant use cases. 



The advent of the cloud allowed for the virtualization of machines separate from the actual hardware. A logical next step for cloud evolution is the virtualization of additional components that have traditionally been based on a hardware solution. Software-defined networking (SDN) is the virtualization of software components traditionally bound to a hardware solution such as a VLAN, load balancer, or firewall.

Although there has been a lot of hype in the media about SDN, with strong advocates both for and against the approach, the benefits of SDN are hard to ignore: direct software programmability of a network, central management and monitoring, increased efficiency, and lower costs. Leading industry analysts like IDC, for example, predict the worldwide market for SDN products and services in the enterprise and cloud service provider segments will grow from $360 million in 2013 to $3.7 billion by 2016. This represents a compound annual growth rate of 117.42% and includes network infrastructure, SDN applications and control plane solutions, and related professional services.

This white paper provides an overview of SDN, a software-defined networking reference architecture in the cloud, and some relevant use cases. 

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