SD-WAN Test Methodology v2.0

SD-WAN Test Methodology v2.0

Publish Date: January 7, 2019

Since the advent of the Internet and, more importantly, since the emergence of the digital economy, the wide area network (WAN) has been a relatively static and predictable tool for enterprises. Without multi-site, assured performance connectivity, many applications would not function optimally, if at all. When architected well, WAN connectivity is expensive but generally predictable. Often, point-to-point circuits are built based on calculated performance loads, and they are accompanied by commercial service-level agreements (SLAs) that provide some guarantee of connectivity and performance. However, drawbacks to these circuits include time to provision (it can take weeks to set up a new circuit) and ongoing service fees. Historically, enterprises have had few options when it comes to commercial-grade service requirements. Alternatively, the consumer broadband offerings provide high- speed access links (e.g., cable and fiber to the home), which are affordable and widely available; however, they do not provide the service assurances that accompany commercial links.

As with all NSS Labs group tests, there was no fee for participation. All testing was conducted independently and was not paid for by any vendor.