2) Use again the network architecture provided in the figure above, were Rs, Rc and R for 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, R,-R,-30Mbps, R,-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? c) How long does it take to move the file from source host to destination host when message segmentation is used and both path Ri, R2 and path Ra, R4 are used? How many packages should be routed from path Ri, R2 and how many from path R3, R4 in order to maximize the use of the network? d) What is the end to end throughput if path Ri, R2 is used, and what if path R3, Ra is used? What is the total throughput from client to server (if both paths are being used at the same time)? 2) Use again the network architecture provided in the figure above, were Rs, Rc and R for 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, R,-R,-30Mbps, R,-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? c) How long does it take to move the file from source host to destination host when message segmentation is used and both path Ri, R2 and path Ra, R4 are used? How many packages should be routed from path Ri, R2 and how many from path R3, R4 in order to maximize the use of the network? d) What is the end to end throughput if path Ri, R2 is used, and what if path R3, Ra is used? What is the total throughput from client to server (if both paths are being used at the same time)