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Iffländer, Lukas, Walter, Jürgen, Eismann, Simon, Kounev, Samuel.  2018.  The Vision of Self-Aware Reordering of Security Network Function Chains. Companion of the 2018 ACM/SPEC International Conference on Performance Engineering. :1-4.

Services provided online are subject to various types of attacks. Security appliances can be chained to protect a system against multiple types of network attacks. The sequence of appliances has a significant impact on the efficiency of the whole chain. While the operation of security appliance chains is currently based on a static order, traffic-aware reordering of security appliances may significantly improve efficiency and accuracy. In this paper, we present the vision of a self-aware system to automatically reorder security appliances according to incoming traffic. To achieve this, we propose to apply a model-based learning, reasoning, and acting (LRA-M) loop. To this end, we describe a corresponding system architecture and explain its building blocks.