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.

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)

7th Edition

ISBN:9780133594140

Author:James Kurose, Keith Ross

Publisher:James Kurose, Keith Ross

Chapter1: Computer Networks And The Internet

Section: Chapter Questions

Problem R1RQ: What is the difference between a host and an end system? List several different types of end...

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Question

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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