SD-WAN Comes to Forefront at ONUG Show
According to analysts at IHS Infonetics, businesses are beginning to turn their attention to SD-WAN technologies. In a report in May, the analysts said a survey of 150 businesses in North America found that 45 percent were planning to increase their spending on SD-WAN networking over the next two years. According to Cliff Grossner, research director for data center, cloud and software-defined networking (SDN) at IHS, SDN and virtualized workloads are top technologies within the data center for businesses. "Meanwhile, outside the data center, SDN-led transformation is taking hold in the WAN optimization market," Grossner said in a statement. "There's a shift from optimizing application traffic flows over a single point-to-point WAN link to automated and dynamic load balancing of application traffic over multiple link types—MPLS, broadband, internet, cellular, etc." In a post on the No Jitter blog site this week, Irwin Lazar, vice president and service director at Nemertes Research, wrote that changes in application traffic within the enterprise is forcing businesses to consider alternatives to MPLS. "While application traffic traditionally traveled from desktop to data center, today it might originate on the desktop or a mobile device and move to the data center, a software-as-a-service provider, or an infrastructure-as-a-service provider like Amazon, Google, or Microsoft," Lazar wrote. "Simply adding more bandwidth or using rate-shaping devices isn't sufficient to support rapidly changing applications crossing the WAN from an increasing variety of locations. Here is where software-defined WAN (SD-WAN) comes into play. SD-WAN provides the potential to reduce WAN costs by eliminating or reducing private MPLS, while enabling better support for cloud-based applications."