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SD-WANs are meant to be the next evolution of networking technology. Of course, they are not without their flaws. They aim to offer three key things to customers that help keep their businesses going: reliability, security, and quality of service. Legacy networks are limited in all three areas, as they were never conceived to be virtualization-friendly. This forced enterprises to do away with older technologies and adopt the software-defined approach as the way to do business.

Read More: https://www.extnoc.com/sd-wan/pros-cons-of-sd-wan/