What is SD-WAN? SD-WAN or Software Defined Wide Area Network (SD-WAN) is a virtual WAN architecture that allows organizations to take advantage of any combination of transport services like MPLS , LTE and broadband Internet - to connect users to applications. An SD-WAN uses a centralized control function to drive traffic securely and intelligently over the WAN . This increases application performance, improving the user experience, increasing business productivity, and reducing IT costs. What Problems Does SD-WAN Solve? 1) MPLS cost and constraints Multiprotocol label switching (MPLS) has been the main used routing technique of WAN connectivity between enterprise sites, it delivers guaranteed bandwidth, predictable latency, and privacy. Unfortunately it has it’s restrictions 1.1 Cost MPLS is very expensive and may charge enterprises additional expanses. 1.2 Constraints MPLS cannot be installed in all geographic locatio...
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