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Software-defined wide area network (SD-WAN) is an agile, software-driven approach to wide area networks (WANs). It replaces traditional WAN networking hardware such as command-line interface (CLI) configured routers with centralized management, applying software-defined networking (SDN) technology to wide area network (WAN) connections to most effectively deliver applications to users across long distances.
The goal of SD-WAN is to reduce the costs of private WAN links, increase performance, and make networking more agile for the cloud.
Software-Defined WAN - Explained
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Yes, SD-WAN significantly increases ROI by improving IT agility, performance and efficiency. Your ROI should be in double digits and you should expect to break even within a few months of completing your deployment. Make sure to plan your roadmap with your SD-WAN vendor and confirm that they can quantify ROI for your custom use-cases.
The price tag shouldn’t be the main consideration with SD-WAN. If you focus solely on the initial investment, you’ll lose sight of the bigger picture, which is the ROI you should experience within a year of implementation. Read more about SD-WAN Pricing >
The vendor selection process will show you that many vendors have not been able to quickly evolve to produce more effective software-defined platforms. Small vendors do not offer a holistic platform for WAN management and rarely have the necessary years of experience in the WAN market. An ideal vendor will recognize and resolve your specific pain-points as well as be a leader in the WAN market. This ensures that they will have the capability to meet your current and future requirements for the entirety of your SD-WAN project. Find out if SD-WAN is key to your business transformation >
SD-WAN can increase your network security with encrypted network traffic, network segmentation, the use of a central provisioning system, increased visibility into the WAN, and optimized performance overall. Segmenting your network limits any attack damage to a manageable area. A central provisioning system provids a piece of software that controls all of the separate nodes interdependently which gives better communication and connection between your network, very different from the traditional WAN setup.
Read the blog: Solving Cloud and Branch SD-WAN Security Challenges