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Authors:
James F. Kurose, Keith W. Ross
Chapter:
Computer Networks And The Internet
Exercise:
Problems
Question:21 | ISBN:9780132856201 | Edition: 6

Question

Consider Figure 1.19(b). Now suppose that there are M paths between the server and the client. No two paths share any link. Path k (k = 1, . . ., M ) consists of N links with transmission rates Rk1, Rk2, . . ., RkN . If the server can only use one path to send data to the client, what is the maximum throughput that the server can achieve? If the server can use all M paths to send data, what is the maximum throughput that the server can achieve?     

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Answer

          

 

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Discussions

kiriharaCken

Because server connect to the client by M paths so:

a) If the server uses a single path to send data to the client, then the maximum throughput is the maximum of set minimum{R1k, R2k,.., RNk} = max{min{R11, R21,.., RN1}, min{R12, R22,.., RN2}, ..., min{R1M, R2M,.., RNM}}

b)  If the server uses all the M paths to send data, then the maximum throughput is the sum of all throughput of each path 

\sumi=1\rightarrowM (min{R1k, R2k,.., RNk})

 

 

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