For the last 5 years OpenStack has been the training ground for a lot of emerging DC SDN solutions. OpenStack integration use case was one of the most compelling and easiest to implement thanks to the limited and suboptimal implementation of the native networking stack. Today, in 2017, features like L2 population, local ARP responder, L2 gateway integration, distributed routing and service function chaining have all become available in vanilla OpenStack and don’t require a proprietary SDN c...
