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SD-WAN helps secure hybrid networks
This article is part of the Network Evolution issue of Special Edition, April 2017, Vol. 1, No. 2
S. Smith got one of those rare opportunities that most network engineers can only dream about -- the chance to completely redesign his company's legacy branch architecture. All 3,000 branches belonging to the financial services company he works for had routed its wide area network (WAN) traffic over MPLS. An Internet connection was available as a backup, but only as a break-glass-in-case-of-emergency alternative if the MPLS link went down. While it met the company's strict security requirements, it was expensive to maintain. As Smith and his team worked on how they could make their WAN more efficient without increasing their reliance on MPLS, software-defined WAN (SD-WAN) caught their attention. This new technology enables enterprises to create hybrid networks that aggregate multiple access technologies, including commercial Internet services, and dynamically route traffic across the best one depending on real-time availability and performance, or other custom policies. After running lab tests and a small pilot in their ...
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Features in this issue
Vive la wide area network revolution! In the new WAN, emerging cloud, software-defined networking and virtualization technologies save time and money while improving performance.
In this case study, learn how SD-WAN adoption dramatically simplified a major oil company's wide area network while improving security and increasing flexibility.
MTD Products credits the Cisco IWAN architecture with cutting costs and improving performance in the wide area network, ultimately leading to an increase in employee productivity.
In this software-defined WAN case study, Kindred Healthcare says Viptela SD-WAN technology has made its network more agile and less expensive to deploy and manage.
For all the gripes enterprises have about MPLS, one point of contention remains: Branches directly connected to the Internet don't feel safe. Is that still true in the age of SD-WAN?
Columns in this issue
In today's wide area network, emerging technologies disrupt the status quo ... and that's a good thing. Enterprises now have more options than ever when it comes to WAN design.