Consider the TCP procedure for estimating RTT. Let SampleRTT1 be the most recent sample RTT, let SampleRTT2 be the next most recent sample RTT, and so on. For a given TCP connection, suppose three acknowledgments have been returned with corresponding sampleRTTs: SampleRTT3, SampleRTT2, and SampleRTT1. Assume that SampleRTT3 = 91ms, SampleRTT2 = (Your ID No) %75, and SampleRTTı= (Your ID No) %50. Compute the EstimatedRTT after each of these SampleRTT values is obtained, using a value of a = o.125 and assuming that the value of EstimatedRTT was (Your ID No) %100 just before the first of these three samples were obtained. Compute also the DevRTT after each sample is obtained, assuming a value of B = o.25 and assuming the value of DevRTT was 8 ms just before the first of these three samples was obtained. Lastly, compute the TCP TimeoutInterval after each of these samples is obtained.

Computer Networking: A Top-Down Approach (7th Edition)
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Author:James Kurose, Keith Ross
Publisher:James Kurose, Keith Ross
Chapter1: Computer Networks And The Internet
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Consider the TCP procedure for estimating RTT. Let SampleRTT1 be the most recent
sample RTT, let SampleRTT2 be the next most recent sample RTT, and so on. For a given
TCP connection, suppose three acknowledgments have been returned with corresponding
sampleRTTs: SampleRTT3, SampleRTT2, and SampleRTT1.
Assume that SampleRTT3 = 91ms, SampleRTT2 = (Your ID No) %75, and SampleRTTı=
(Your ID No) %50. Compute the EstimatedRTT after each of these SampleRTT values is
obtained, using a value of a = o.125 and assuming that the value of EstimatedRTT was
(Your ID No) %100 just before the first of these three samples were obtained. Compute
also the DevRTT after each sample is obtained, assuming a value of B = o.25 and
assuming the value of DevRTT was 8 ms just before the first of these three samples was
obtained. Lastly, compute the TCP TimeoutInterval after each of these samples is
obtained.
Transcribed Image Text:Consider the TCP procedure for estimating RTT. Let SampleRTT1 be the most recent sample RTT, let SampleRTT2 be the next most recent sample RTT, and so on. For a given TCP connection, suppose three acknowledgments have been returned with corresponding sampleRTTs: SampleRTT3, SampleRTT2, and SampleRTT1. Assume that SampleRTT3 = 91ms, SampleRTT2 = (Your ID No) %75, and SampleRTTı= (Your ID No) %50. Compute the EstimatedRTT after each of these SampleRTT values is obtained, using a value of a = o.125 and assuming that the value of EstimatedRTT was (Your ID No) %100 just before the first of these three samples were obtained. Compute also the DevRTT after each sample is obtained, assuming a value of B = o.25 and assuming the value of DevRTT was 8 ms just before the first of these three samples was obtained. Lastly, compute the TCP TimeoutInterval after each of these samples is obtained.
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