Assuring the Promise of SD-WAN
The drive to automation is rapidly progressing as operators and enterprises adopt software-defined networking (SDN), network functions virtualization (NFV), and cloud services. SD-WAN is a logical outgrowth of virtualization, for it allows enterprises to tailor the wide area network (WAN) around business-critical applications.
Without standards, the SD-WAN market has been hindered by a lack of multi-vendor interoperability. SD-WAN managed service providers (MSPs) are spending millions of dollars on integration and normalization to support the many SD-WAN products, and the myriad of virtualized network functions (VNFs) that provide value-added capabilities.
Deployment of virtualized SD-WAN-associated VNFs are further complicated because of the wide variations of NFV infrastructure (NFVi), ranging from public cloud “as a service” to universal CPE. On top of that, traditional hardware-centric testing tools and platforms are inadequate to address NFVi variability.
This paper discusses the latest developments in SD-WAN standardization and new approaches for assuring SD-WAN integrity.