P8-2. Five equal-size datagrams belonging to the same message leave for the destination one after another.
However, they travel through different paths as shown in Table 8.1.
Table 8.1 P8-2
Datagram
1
2
3
Path Length
Visited Switches
3200 km
11,700 km
1,3,5
1,2,5
12,200 km
1, 2, 3, 5
10,200 km
10,700 km
4
5
1,4,5
1,4,3,5
We assume that the delay for each switch (including waiting and processing) is 3, 10, 20, 7, and 20 ms
respectively. Assuming that the propagation speed is 2.10 m, find the order the datagrams arrive at the
destination and the delay
for each. Ignore any other delays in transmission.
