Software-Defined Networks as Databases
Anduo Wang, Wenchao Zhou, Brighten Godfrey, Matthew Caesar · 2014
In software-defined networks (SDN), the separation of the control and data-plane moves the concurrency control from the data-plane to a separate, now logically centralized controller program. As a result, despite its intention to simplify programming, the separation forces the programmer to deal with a spectrum of concurrent events (e.g. execution of controller programs, in-flight packets), a task that is notoriously challenging and error-prone. It is not even clear what