OpenFlow switch by OpenFlow protocol via a secure channel. OpenFlow Controller is programmable, Service Provider can

Abstract—Recently, attention is particularly focused on the research of Software defined network (SDN) for reducing network management complexity. The one of a key technology of SDN is OpenFlow. OpenFlow provide a centralized controller for network and the scalability of controller is main issue. In this paper, we propose a high-speed routing engine for improve the scalability of OpenFlow controller. Unlike conventional architectures of routing engine, the proposal is a hardware routing engine that using on-chip diorama network. We define the Diorama Network as a virtual emulated network in a chip. We implement a prototype of the routing engine on an actual dynamically reconfigurable processor (DRP), and test results show that the prototype can execute the shortest path calculation 19 times faster than the current approach.