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Processing packets

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A CPU in a router can process 2 million packets/sec. The load offered to it is 1.5 million packets/sec. If the route from source to destination contains 10 routers (having no additional traffic), how much time is spent being queued and serviced by the CPUs. Assume Poisson arrivals and departures at each router.

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The expert examines processing packets CPUs.

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Let
u = a mean processing capacity of the CPU
Lambda = A mean arrival rate of packets
T = the mean delay experienced by a ...

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