Calculating Utilization in a Stop-And-Wait Protocol

Posted by AlanTuring on Super User See other posts from Super User or by AlanTuring
Published on 2012-10-17T00:48:15Z Indexed on 2012/10/17 5:10 UTC
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networking

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utilization

So theres this question in my book and it doesn't state exactly how to go about actually calculating utilization anywhere, and i'm not being able to find any substantial information regarding everything i need to solve this question.(My mid term is next week).

Anyway, here's the question:

The distance from earth to a distant planet is approximately 9 × 10^10 m. What is the channel utilization if a stop-and-wait protocol is used for frame transmission on a 64 Mbps point-to-point link? Assume that the frame size is 32 KB and the speed of light is 3 × 10^8 m/s.

Suppose a sliding window protocol is used instead. For what send window size will the link utilization be 100%? You may ignore the protocol processing times at the sender and the receiver.

thanks to anyone who has any idea.

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