Queuing network consisting of five queuing systems Queueing Queueing system system 2 Queueing Point where Point where QueueingOut system users make users merge →+(+)ssem a choice Queueing stemQueuing network consisting of five queuing systems In Queueing system 1 Queueing system 5 Point where users make a choice Point where users merge + Queueing system 4 Queueing system 2 Queueing system 3 Out