1 votes 1 votes Please explain the answer? Asim Abbas asked Jan 18, 2018 Asim Abbas 1.6k views answer comment Share Follow See all 4 Comments See all 4 4 Comments reply Shubhgupta commented Jan 18, 2018 reply Follow Share is 6 answer? 0 votes 0 votes Hemant Parihar commented Jan 18, 2018 reply Follow Share $T_p$ = 5 ms $T_t$ = 2 ms Optimal window size = 1 + 2a = 1 + 2*(5/2) = 6. 0 votes 0 votes Asim Abbas commented Jan 19, 2018 reply Follow Share Actually i also gave 6 as answer. But the solution given by Ace was as follows:- The difference in our answer is due to non inclusion of Transmission time in above solution. I don't know why they have not included Transmission time in calculating RTT. OR may be the solution provided by them is wrong??? 0 votes 0 votes Hemant Parihar commented Jan 19, 2018 reply Follow Share Transmission time is always included while calculating RTT. Sometimes we ignore it because it is very small compared to propagation time. Here transmission time is considerable compared to propagation time, we should include it. The answer should be 6. 0 votes 0 votes Please log in or register to add a comment.