Dynamic flow filtering for All-Optical Networks

The rapid increase of the bandwidth demand have led to the growth of optical communications which are used for implementing not only backbones but also access networks. Due to the sensitivity of the applications relying on optical networks, security becomes a major concern. The paper evaluates the performance of the optical firewall proposed in [6] which is able to protect Optical Burst Switched (OBS) networks against physical layer attacks. We first describe the architecture of the optical firewall. Then, we present the design of the BHP (Burst Header Packet) waiting module which is the main component of the optical firewall architecture. Finally, we propose a simulation of the waiting module in order to evaluate the performance of the firewall.