Create a table as in 6.3.1 Simple fixed-window-size analysis for a network AR1R2R3B. The AR1 link is infinitely fast. The R1R2 and R3B links have a bandwidth delay of 1 packet/second with no additional propagation delay. The R2R3 link has a bandwidth delay of 1 packet / 2 seconds, and no propagation delay. The reverse BA direction (for ACKs) is infinitely fast. Assume winsize = 6. (http://intronetworks.cs.luc.edu/current/html/slidingwindows.html#fixed-window-size)

(a). Carry out the table for 10 seconds. Note that you will need to show the queue for both R1 and R2.

(b). Carry out the pattern at least partially until T=18, in sufficient detail that you can verify that RTT_actual for packet 8 is as calculated in exercise 5.0. To do this you will need more than 10 packets, but fewer than 16; the use of hex labels A, B, C for packets 10, 11, 12 is a convenient notation.

Hint: The column for R2 sends (or, more accurately, R2 is in the process of sending) should look like this:

T	R2 sends
0
1	1
2	1
3	2
4	2
5	3
6	3
...	...