Secure your SDN controller | Network World

Managing networks has become increasingly complex, and it will remain a challenge as the use of Internet of Things devices continues to grow. This complexity makes it difficult to reconfigure a traditional network in a timely manner to respond to malicious events or fix configuration errors.

A software-defined network (SDN) can help by giving network engineers the flexibility to dynamically change the behavior of a network on a node-by-node basis — something not typically available in a traditional network. An SDN uses virtualization to simplify the management of network resources and offers a solution for increased capacity without significantly increasing costs.

As network controls move from hardware to software, the result is multiple devices merged into one controller, which enables the network engineer to control the entire network. There are security challenges with this new model that must be addressed, though.

Benefits of SDN

An SDN makes it much easier to integrate services such as real-time HD video conferencing and cloud applications into your environment. Application developers or testers can isolate and run workloads without risk as virtual tenants in a production network. This can speed up problem solving and decrease the amount of time required to test before deployment.

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