Nearly three-quarters (74 percent) of organisations in North America conducted SD-WAN lab trials in 2017; by 2018, many will move into production trials and then to live production, according to IHS Markit's findings from its latest report.
The latest annual survey of network managers from IHS Markit shows that investments in WANs continue unabated, driven by traffic growth, company expansion, adoption of the Internet of things (IoT), the need for greater control over the WAN, and the need to put WAN costs on a sustainable path.
Security in particular is the number one network change by a wide margin, and the top reason to invest in new infrastructure, as companies must fend off the constant threat of cyber attacks.
“As companies shift a greater portion of their IT infrastructure into the cloud, and expand their physical presence to go after new markets or be closer to customers and partners, the need for reliable, secure and high-performance WAN and internet connectivity has never been greater,” said Matthias Machowinski, senior research director for enterprise networks at IHS Markit. “However, companies don’t have unlimited budgets to fund growing WAN bandwidth consumption, which is why a majority are planning to deploy software-defined WAN in the next three years, to better control how their WANs are used.”
Respondents expect their WAN bandwidth usage to grow over 20 percent annually — data center usage is the highest, while branch offices are experiencing the highest growth, at nearly 30 percent per year.
Reflecting the significant demands placed on WANs, total WAN expenditures rose nearly 20 percent annually, to reach $300,000 per respondent in 2017. 71 percent of respondents will use off-premises cloud service providers by 2018, which will become the top application strategy in 2018.