Modeling Access Control Lists with Discrete-Time Quasi Birth-Death Processes

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This paper examines Access Control Lists (ACLs) that are used primarily in IP routers for providing network admission control and maintaining a certain level of Quality of Service. We present a method for modeling ACLs and firewall rules in various systems that use the same logic for their operation. Besides, we analyze the performance impact of ACLs on the packet forwarding capability of a router with discrete-time QBD processes.