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The 2020 WAN takes shape -- SDN, virtualization, and hybrid WANs

Hank Levine | Aug. 17, 2015
It’s not clear how fast MPLS will go the way of Frame Relay and ATM, but changing apps and bandwidth needs will force enterprises to embrace a new set of technologies.

There are already enterprises that use the public Internet as their WAN transport layer (with tunneling/encryption for security), and some combination of hybrid WAN and SDN seems poised to make that a real choice for most enterprises by the end of the decade, if not before. The bandwidth hunger of Cloud-based apps, fixed/mobile integration, and organic growth are accelerating demand for lower cost and improved performance. SDN, virtualization and WAN hybridization are the most promising ways to get us there.


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