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Computer Networking : A Top-Down Approach

Computer Networking : A Top-down Approach

Authors: James F. Kurose, Keith W. Ross Chapter: Computer Networks And The Internet
ISBN: 9780132856201 Exercise: Review
Edition: 6 Question: 11

 

Question

Suppose there is exactly one packet switch between a sending host and a receiving host. The transmission rates between the sending host and the switch and between the switch and the receiving host are R1 and R2, respectively.
Assuming that the switch uses store-and-forward packet switching, what is the total end-to-end delay to send a packet of length L? (Ignore queuing, propagation delay, and processing delay.)

Answer

Consider the data:

R1= Transmission rates between the sending host and the switch

R2= Transmission rates between the switch and the receiving host

L=  Packet of length

Therefore, total end-to-end delay to send a packet of length L=L/R1+L/R2

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