4. Consider the architecture shown below and assume at time \(t\) Switch X has the following table:
Address Port
A 1
B 1
E 2
H 3
1 Switch X 3
2
Switch Switch Switch
A B C D E F G H I
a. At time \(t+1\), Node I sends a frame to C. To which port(s) is the frame forwarded? Show any
changes to the table and explain. Only answer in regards to Switch X.
b. Repeat part (a), with D sending a frame to H. (You may assume that the event in part (a) did
not occur.) Again, only answer in regards to Switch X.
c. Suppose that all the links are 100Mbps. What is the maximum total aggregate throughput that
can be achieved among the hosts in this network?