Client Server R, R Rc Rs R, R 4
Use again the network architecture provided in the figure above, were RS, RC and Ri for i = {1,2,3,4}, the
transmission rates of the server link, client link and intermediate network links. Consider a message that
is 60 · 106 bits long that is to be sent from client to server. Ignore propagation, queuing, and processing
delays.
a.Now assume that Rc = 60Mbps, Rs = 40Mbps, R1 = R3 = 30Mbps, R2 = 10Mbps and R4 = 20Mbps.
Suppose that the message is segmented into 6000 packets, with each packet being 10,000 bits
long. How long does it take to move the first packet from source host to the first switch? When
the first packet is being sent from the first switch to the second switch, the second packet is being
sent from the source host to the first switch. At what time will the second packet be fully received
at the first switch?
b) How long does it take to move the file from source host to destination host when message
segmentation is used if path R3, R4 is chosen?
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