《2016hotsdn - Procera：A Language for High-Level Reactive Network Control》.pdf

Procera: A Language for High-Level Reactive Network Control Andreas Voellmy Hyojoon Kim Nick Feamster Yale University Georgia Tech University of Maryland 51 Prospect ST School of Computer Science Dept. of Computer Science New Haven, CT, U.S.A. 266 Ferst Drive College Park, MD, U.S.A. andreas.voellmy@ Atlanta, GA, U.S.A. feamster@ joonk@ ABSTRACT 1. INTRODUCTION Our previous experience building systems for implementing net- Network operators and researchers have often discussed the need work policies in home and enterprise networks has revealed that for a network configuration language that can express high-level the intuitive notion of network policy in these domains is inher- network policies, in contrast to the status quo, whereby configura- ently dynamic and stateful. Current configuration languages, both tion is low-level, mechanism-focused, and vendor specific [5,7,18]. in traditional network architectures and in OpenFlow systems, are Conventional methods result in systems that are complex, error- not expressive enough to capture these policies. As a result, most prone, and hard to manage [6,9,14,19]. Software defined network- prototype OpenFlow systems lack a configurable interface and in- ing (SDN) offers the opportunity to make networks easier to con- stead require oper