1. Assume the network capacity (measured in number of segments) is 7 and it is a constant. ssthresh=4 when the transmission starts. a. Plot the evolution of the TCP congestion window. Congestion window (in segments) 16 14- 12- 6 4- 2- 0+ T T 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 Transmission round b. What are the intervals of time when TCP slow start is operating? What are the intervals of time when TCP congestion avoidance is operating?

Database System Concepts
7th Edition
ISBN:9780078022159
Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Chapter1: Introduction
Section: Chapter Questions
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Can someone please explain to me these questions? ASAP??!!!
1. Assume the network capacity (measured in number of
segments) is 7 and it is a constant. ssthresh=4 when the
transmission starts.
a. Plot the evolution of the TCP congestion window.
Congestion window
(in segments)
16
14-
12
10
00
9
4
2-
0
0
1
1
2 3 4
T
5 6 7 8 9 10 11 12 13 14 15
Transmission round
b. What are the intervals of time when TCP slow
start is operating? What are the intervals of time
when TCP congestion avoidance is operating?
Transcribed Image Text:1. Assume the network capacity (measured in number of segments) is 7 and it is a constant. ssthresh=4 when the transmission starts. a. Plot the evolution of the TCP congestion window. Congestion window (in segments) 16 14- 12 10 00 9 4 2- 0 0 1 1 2 3 4 T 5 6 7 8 9 10 11 12 13 14 15 Transmission round b. What are the intervals of time when TCP slow start is operating? What are the intervals of time when TCP congestion avoidance is operating?
2. Assume the network capacity (measured in number of
segments) is 9 when the transmission starts, and it changes
to 7 after the 10th round. ssthresh-8 when the
transmission starts.
a. Plot the evolution of the TCP congestion window.
Congestion window
(in segments)
16-
14-
12-
10-
8
6
2-
O
0.
0 12 3 4
6 7 8 9 10 11 12 13 14 15
Transmission round
b. What are the intervals of time when TCP slow
start is operating? What are the intervals of time
when TCP congestion avoidance is operating?
Transcribed Image Text:2. Assume the network capacity (measured in number of segments) is 9 when the transmission starts, and it changes to 7 after the 10th round. ssthresh-8 when the transmission starts. a. Plot the evolution of the TCP congestion window. Congestion window (in segments) 16- 14- 12- 10- 8 6 2- O 0. 0 12 3 4 6 7 8 9 10 11 12 13 14 15 Transmission round b. What are the intervals of time when TCP slow start is operating? What are the intervals of time when TCP congestion avoidance is operating?
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