434hw5sol

434hw5sol - CSE 434 TTh 9:15 AM Homework#5 Sample Solution Please email Catherine([email protected] if you have questions(10 points for each question

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CSE 434 – TTh 9:15 AM Homework #5 Sample Solution November 13, 2003 Please email Catherine ( [email protected] ) if you have questions. (10 points for each question) 1. (5.27) A computer on a 6-Mbps network is regulated by a token bucket. The token bucket is filled at a rate of 1 Mbps. It is initially filled to a capacity with 8 megabits. How long can the computer transmit at a full 6 Mbps? s M C S 6 . 1 ) 1 6 /( 8 ) /( = - = - = r 2. (5.35) A router is blasting out IP packets whose total length (data plus header) is 1024 bytes. Assuming that packets live for 10 sec., what is the maximum data line speed the router can operate at without danger or cycling through the IP datagram ID number space? The IPv4 header provides 16 bits to the Identification field. This means that there should only be a maximum of 2 16 packets alive at a certain time to ensure that they are all unique. 1024 bytes/packet * 6553.6 packets/sec * 8 bits/byte = 53687091.2 bps = 53.7Mbps 3. (5.38)
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434hw5sol - CSE 434 TTh 9:15 AM Homework#5 Sample Solution Please email Catherine([email protected] if you have questions(10 points for each question

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