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Unformatted text preview: (a), but assume that the receiver has received packets 0 1 3 , but not 2. Again all ACKs are lost. 3) Assume RTT of a network = 250 ms. If we like to set up a 200Kbps TCP channel, (a) what is the widow size we need to use? (b) Repeat part (a) for a 2 Mbps. 4) After setting up a TCP channel to a server, a client machine crashes at t0. But it comes back up at t1 and the data rate of the new channel is shown by the red arrows in the figure. Assuming TCP channels always initialize the sequence number to 0. Will we ever have two packets of the same sequence generated by the client machine, before and after the crash, existing in the network? Explain. (Here the client’s port number remains unchanged.) Time Sequence number T T: lifetime of a packet t0: system crashes t1: system resumes t0 t1...
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This note was uploaded on 10/16/2011 for the course ELEC 308,315,10 taught by Professor Prof.shenghuisong during the Spring '11 term at CUHK.
- Spring '11