![]() Here are the SDN basics: In SDN (like anything virtualized), the software is decoupled from the hardware. However, because software-defined networks use a centralized controller, securing the controller is crucial to maintaining a secure network. Thanks to greater visibility and the ability to define secure pathways, SDN offers better security in many ways. There are also security differences between SDN and traditional networking. It allows administrators to control the network, change configuration settings, provision resources, and increase network capacity - all from a centralized user interface, without the need for more hardware. Because the control plane is software-based, SDN is much more flexible than traditional networking. The key difference between SDN and traditional networking is infrastructure: SDN is software-based, while traditional networking is hardware-based. Operators can create separate zones for devices that require different levels of security, or immediately quarantine compromised devices so that they cannot infect the rest of the network. With the proliferation of smart devices that connect to the internet, SDN offers clear advantages over traditional networking. Robust security: A software-defined network delivers visibility into the entire network, providing a more holistic view of security threats.This allows network administrators to optimize the flow of data through the network and prioritize applications that require more availability. Customizable network infrastructure: With a software-defined network, administrators can configure network services and allocate virtual resources to change the network infrastructure in real time through one centralized location.Networking administrators also have more flexibility in choosing networking equipment, since they can choose a single protocol to communicate with any number of hardware devices through a central controller. ![]()
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