SHARE
SPREAD
HELP

The Tradition of Sharing

Help your friends and juniors by posting answers to the questions that you know. Also post questions that are not available.

To start with, Sr2Jr’s first step is to reduce the expenses related to education. To achieve this goal Sr2Jr organized the textbook’s question and answers. Sr2Jr is community based and need your support to fill the question and answers. The question and answers posted will be available free of cost to all.

The pleasure of all reading is doubled when one lives with another who shares the same. -Katherine Mansfield

 

#
Authors:
James F. Kurose, Keith W. Ross
Chapter:
Multimedia Networking
Exercise:
Problems
Question:10 | ISBN:9780132856201 | Edition: 6

Question

Compare the procedure described in Section 7.3 for estimating average delay with the procedure in Section 3.5 for estimating round-trip time. What do the procedures have in common? How are they different?

TextbookTextbookTextbookTextbookTextbookTextbookTextbookTextbookTextbookTextbookTextbookTextbookTextbookTextbookTextbookTextbookTextbook

Answer

Consider the section 7.3  for the the Estimating the round trip time (RTT) and section 3.5 for the Estimating the average network delay data in the textbook.

 

The common property between the Estimating the round trip time (RTT) in TCP and Estimating the average network delay:

  • The average delay formula is same for the calculations in both.
  • The formula for the average delay:                                                     EstimatedRTT(current) = (1-a)*EstimatedRTT(previous) + a*SampleRTT(recent) ;                                                                                                             

The difference between the Estimating the round trip time (RTT) in TCP and Estimating the average network delay:

  • Using the previously observed sample round trip times to calculate the average RTT in  Estimating the round trip time (RTT) in TCP, while using end-to-end delays to calculate the average RTT in  Estimating the average network delay.
  • Transmission control protocol does not calculate the RTT  in  Estimating the round trip time (RTT) in TCP, while delay is calculated the RTT in  Estimating the average network delay.
  • The estimating the round trip time (RTT) is a bi-directional delay process, while as the estimating the average network delay is an one-way delay process.
0 0

Discussions

Post the discussion to improve the above solution.