There have been a lot of innovations in the virtualization domain which has benefited compute and storage. However those benefits are constrained due to limitations in the traditional network model. It is becoming increasingly difficult task to manage infrastructure which needs rapid network provisioning and also can be a time consuming. In addition there is a risk associated with slow network provisioning as it may cause a performance issue.
In today’s data center world; with the rise of cloud services and “Big Data” (which means more bandwidth) the traditional network model is inappropriate as it’s more suitable for client-server computing. This also means that it won’t be that efficient to cope up with dynamic computing and storage needs. In order to overcome these issues and provide efficient and high-quality service, the traditional network model can be replaced by software-defined model now. Software defined networking (SDN) technology is beneficial as it help organizations to reduce cost and gives agility to the internet protocol network.
SDN is nothing but a piece of software which will talk to the hardware. With the help of SDN, you can control network and physical devices. In today’s day and age where business requirements are changing very quickly, SDN provides an ability to respond quickly as it uses software to control network router and switches and can provide centralized management of network.
SDN offers lots of benefits to IT architectures such as data centers, DevOps and Cloud. An organization does not need to purchase very expensive networking devices. Hence, SDN helps organizations to reduce the costs involved in purchasing expensive hardware. In addition to reduced cost, flexibility, speed and agility, granular security and centralized network provisioning are some of the benefits that SDN provides over traditional networking.
To summarize, SDN provides very powerful and vendor neutral approach for managing complex networks with dynamic demands. The software-defined network can continue to use many of the useful network technologies already in place, such as virtual LAN infrastructure.
The SDN market is growing very fast and at a pace faster than anyone had anticipated as an innovative architectural model which is capable of enabling automated provisioning, network virtualization, and network programmability for datacenters at cloud-providers and enterprise networks.
Domains such as healthcare, banking, telecom, manufacturing and insurance are rapidly implementing SDN. Increasing cloud computing services, need for efficient infrastructure, complex network traffic patterns, need for mobility services, and emergence of big data are the major factors for market growth.
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- Future of Networking : Software Defined Networking (SDN) - March 1, 2017