A firewall has a processing capability of 𝜇 pkts/s. The time required to analyze a packet can be assumed to be a constant as a first approximation. Packets arrive according to a stationary process...

A firewall has a processing capability of 𝜇 pkts/s. The time required to analyze a packet can be assumed to be a constant as a first approximation. Packets arrive according to a stationary process from a link with bit rate R. The mean packet length is L. The average utilization of the link is𝜌.The firewall has a buffer that can store up to K packets. Define a model of the firewall processing unit. Write an expression of the mean packet arrival rate at the firewall.