SDN (Software Defined Networking) Home Cybersecurity Dictionary SDN (Software Defined Networking) SDN is an approach to computer networking in the LAN or data center of an enterprise that uses software to abstract the underlying network elements and to logically centralize network intelligence and control. Under traditional approaches to networking, individual devices function relatively autonomously and with only limited awareness of the state of the overall network. SDN provides centralized network awareness and allows for the development of more intelligent policies that can optimize functions such as bandwidth management, security, restoration, etc. SD-WAN takes many SDN principles and extends them to the enterprise's Wide Area Network (WAN). The goal of SDN is to improve network control by enabling enterprises and service providers to respond quickly to changing business requirements. Related TermsFWaaS - Firewall as-a-ServiceMicrosegmentation Share: Seeking Clarity? View the Cybersecurity Dictionary for top terms searched by your peers. Back to the Dictionary RELATED INSIGHTS BLOG November 06, 2017 Using Micro-Segmentation to Protect Your Data – Part 1 As software-defined networking (SDN) technologies have become more prevalent and organizational perimeters have become blurred, micro-segmentation is ... See Details Read more about Using Micro-Segmentation to Protect Your Data – Part 1 BLOG February 13, 2018 Using Micro-Segmentation to Protect Your Data – Part 2 While micro-segmentation, software-defined networking (SDN) and software-defined data center (SDDC) technology providers VMWare, Cisco and Amazon Web ... See Details Read more about Using Micro-Segmentation to Protect Your Data – Part 2 How Can We Help? Let us know what you need, and we will have an Optiv professional contact you shortly.