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Consider an end to end path from a server to a client shown as the figure. Assume that the links along the path from the
- Consider an end to end path from a server to a client shown as the figure. Assume that the links along the path from the server to the client are the first link with rate Rs bits/sec and the second link with rate Rc bits/sec. Suppose the server sends a pair of packets back to back to the client, and there is no other traffic on this path. Assume each packet of size L bits, and both links have the same propagation delay dprop.
- What is the packet inter-arrival time at the destination? That is, how much time elapses from when the last bit of the first packet arrives until the last bit of the second packet arrives?
- Now assume that the second link is the bottleneck link (i.e., RcRs). Is it possible that the second packet queues at the input queue of the second link? Explain.
- Now suppose that the server sends the second packet T seconds after sending the first packet. How large must T be to ensure no queuing before the second link? Explain.
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