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  • The way SD-WAN technology works provides significant advantages to WAN. Traditional WAN technologies involve installation of proprietary hardware or expensive fixed circuits. WAN infrastructure is quite complex, consisting of routers, firewalls, WAN optimizers, WAN path controllers and other components.

    SD-WAN takes out much of the hardware, offering connectivity and services through the cloud. It delivers unified communications and data applications through integration of multiple connection types, like broadband internet, Multiprotocol Label Switching (MPLS), and Long-Term Evolution (LTE). SD- WAN also integrates the entire WAN into a single interface, which makes handling issues in the network easier.

    Overall, the goal of SD-WAN is simplification and the creation of a real-time data network without as much physical networking. The end idea is that, after deployment of SD-WAN devices, setting up the technology would be as easy as setting up Wi-Fi.

    Cisco melded technology acquired in its 2017 takeover of Viptela into the Verizon SD-WAN platform. The platform gives a boost in switching capability that lets 5G video stream uninterrupted as devices move from cellular connections to broadband Wi-Fi. Verizon's SD-WAN also works to improve enterprise security. Network managers can erect a perimeter around assets and control device access to them on an applications-level basis for mobile workforces.

    Demanding SD-WAN is winning over midmarket CIOs through cost savings, simplified management and boosting bandwidth capabilities.

    https://www.fieldengineer.com/blogs/software-defined-wan

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