logo
logo
Sign in

Introduction to Software-Defined Networking

avatar
Ashwin Patil

Today’s world is of multimedia content, videos, and a lot of mobile usages. The world has seen monumental growth in these service usages and it is constantly increasing with the new enhancements like cloud computing, fastest networks. These factors are becoming pressure points for service providers, organizations as well as carriers. To cope up with the new-edge pressure, organizations need to look for a new-edge network architecture approach. Software-defined networking is the latest buzz in this context.

Software defined networking is originally researched in 2008 by the joint collaboration research at Stanford University and the University of Berkeley. It is forecasted that the worldwide SDN market will reach $12 billion by 2022. Now organizations have better understood the SDN approach and its use cases and so they are adopting its practical benefits. The software-defined architecture is the controllers that abstract the underlying network. This approach is beneficial as it treats the entire datacentre network as a whole and it can serve the needs of application workloads efficiently.

Benefits of Software-defined networking

Centralized and simplified control of enterprise network management is the biggest advantage of the SDN and apart from it let us sees what the other benefits it offers are:

  • Holistic enterprise management
  • Lower operating cost
  • Hardware saving and reduced capital expenses
  • Guaranteed content delivery
  • Cloud abstraction
  • Centralized network provisioning
  • More security

How Software-defined networking provides security to customers?

SDN allows enterprises to divide a network connection between the data centre and the end-user of the network providing different security levels and settings for different network traffic. SDN provides the ability to view a set of workloads and check whether it is matching with the given security policy. SDN is extending the support for micro-segmentation. Through micro segmentation, SDN offers mitigation of complexity of establishment and maintenance of persistent network and security features for a multi-cloud environment.

Four critical areas that Software-defined network can enhance

SDN can enhance the four critical areas and can offer significant difference for the adopting organization:

Centralized intelligence and control

SDN is mainly based on centralized network topologies and working is based on intelligent control and management of network resources. Traditional network control approaches were distributed in nature and have limited awareness about network status. SDN offers other benefits like bandwidth management, security, and restoration.

Network Programmability

SDN is controlled by the software which resides beyond the networking devices. With this feature, the operator can provide the feature of customised network behaviour and support new services. In SDN, operators decouple the hardware from the software and thus offer new services that are free from constraints.

Network abstraction

The software-defined network provides an abstract layer for the underlying services and applications. It covers the technologies and hardware that offer connectivity and network control. Applications are allowed to interact with the physical network only through APIs.

Openness

The software-defined network enables multi-vendor interoperability and a vendor-neutral ecosystem. The APIs provide support for different applications like cloud orchestration, SaaS. It enables network operators to develop programs for SDN APIs and provide better application control over network behaviour.

Empower your IT team with this new Software-defined networking approach and avail the diverse benefits of it!

collect
0
avatar
Ashwin Patil
guide
Zupyak is the world’s largest content marketing community, with over 400 000 members and 3 million articles. Explore and get your content discovered.
Read more