The Software-Defined Wide Area Network (SD-WAN) Working Group stemmed out of the ONUG Spring 2014 meeting, where users prioritized this use case as one of the top three. Since spring of 2014, the working group has published a white paper with detailed top 10 requirements, completed feature verification testing, and showcased proof of concept demonstrations based on the requirements.
The work being done in the group is based upon the original use case, included below.
Problem Being Solved: High CapEx & OpEx of appliance stacks + circuit cost
Open Networking Components: Open programmability of branch office routers, SDN controller centralized overlay, white box branch office devices
Gaps: Policy routing for the WAN: QoS to control different bandwidth links and applications
Benefits: Mitigate asymmetric routing, manage flows & utilization of WAN as a multi-carrier pool of bandwidth
Based upon collective working group member requirements
and are a realization of industry gaps missing solutions required for an open
cloud-based software-defined infrastructure market to develop at scale.