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SD-WAN: What it is and why you’ll use it one day

Brandon Butler | June 13, 2017
An SDN for your branch office.

So if SD-WAN is so great why isn’t it more ubiquitous? Many organizations have custom built ASICs controlling their WANs and LANs, which have long refresh cycles.

Network engineers are traditionally averse to dramatic changes too, Lerner says. When the hardware is ready for an upgrade Lerner expects organizations will consider SD-WANs, but that could be a multi-year process.


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