Question: Consider a network with end to end window flow control applied to each virtual circuit Assume that the data link control operates perfectly and that

Consider a network with end to end window flow control applied to each virtual circuit Assume that the data link control operates perfectly and that packets are never thrown away inside the network. Thus packets always arrive at the destination in the order sent, and all packets eventually arrive. a) Suppose that the destination sends permits in packets returning to the source, if no return packet is available for some time out period, a special permit packet is sent back to the source. These permits consist of the number modulo m of the next packet awaited by the destination. What is the restriction on the window size w in terms of the modulus and why?

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