Question: Consider the GBN protocol with a sender window size of 3 and a sequence number range of 1,024. Suppose that at time t. the next

Consider the GBN protocol with a sender window size of 3 and a sequence number range of 1,024. Suppose that at time t. the next in-order packet that the receiver is expecting has a sequence number of k. Assume that the medium does not reorder messages. Answer the following questions :
a. What are the possible sets of sequence numbers inside the sender's window at time l? Justify your answer.
b. What are all possible values of the ACK field in all possible messages currently propagating back to the sender at time t? Justify your answer.

Step by Step Solution

★★★★★

3.36 Rating (168 Votes )

There are 3 Steps involved in it

1 Expert Approved Answer

Step: 1 Unlock

a Here we have a window size of N3 Suppose the receiver has received packet k1 and has ACKed that an... View full answer

Question Has Been Solved by an Expert!

Get step-by-step solutions from verified subject matter experts

Step: 2 Unlock

Step: 3 Unlock

Document Format (1 attachment)

899-CS-CN (490).docx

120 KBs Word File

Students Have Also Explored These Related Computer Network Questions!

Answer true or false se to the following questions and briefly justify your answer: a. With the SR protocol, it is possible for the sender to receive an ACK for a packet that falls outside of its...

Consider the GBN and SR protocols. Suppose the sequence number space is of size k. What is the largest allowable sender window that will avoid the occurrence of problems such as that in Figure 3.27...

Consider the rdt 3.0 protocol. Draw a diagram showing that if the network connection between the sender and receiver can reorder messages (that is, that two messages propagating in the medium between...

1 . [ 3 0 points ] Consider the rdt 3 . 0 Finite State Machine ( FSM ) discussed in class. Build a rdt 3 . 0 Finite State Machine which sends packets numbered \ ( 0 , 1 , 2 \ ) , and 3 to a receiver,...

Q4. Consider the GBN protocol with a sender window size of 4 and a sequence number range of 1,024. Suppose that at time t, the next in-order packet that the receiver is expecting has a sequence...

Consider the GBN protocol with a sender window size of 4 and a sequence number range of 1,024. Suppose that at time , the next in-order packet that the receiver is expecting has a sequence number of...

P 2 2 . Consider the GBN protocol with a sender window size of 4 and a sequence number range of 1 , 0 2 4 . Suppose that at time t , the next in - order packet that the receiver is expecting has...

for question b, is the range [k - N -1, k - 1] or [k - N, k - 1]? Consider the GBN protocol with a sender window size of 4 and a sequence number range of 1,024. Suppose that at time t, the next in...

consider the GBN protocol with a sender window size of 4 and a sequence number range of 1 0 2 4 . Suppose that, at time t , the next in - order packet that the receiver is expecting has a sequence...

3. Consider a Go-Back-N protocol with a sender window size of 5 and a sequence number range of 1,024, and assume the receiver sends ACKs with the number of the next sequence number expected. Suppose...

A project monitoring technique called a traffic approach (i.e., red, yellow, and green lights) is mentioned in the chapter. Comment on what you see as the pros and cons of this approach.

Your firm has built a manufacturing plant not too far from a large European city. You are a member of a management team that is charged with designing employment contracts that promote high effort...

Find the gradient of the line passing through each of the following pairs of points. (a) C(3, 1) and D(6, 3) (b) H(5,-7) and K(0, -2) (c) M(-4, 1) and N(16, 1)

job sources. Refer to the data given in Exercise 19, and construct a pie chart. Compare the pie chart to the Pareto chart. Can you determine which graph is more effective in showing the relative...

If the procedure between in protocol 5 checked for the condition a

In protocol 6, when a data frame arrives, a check is made to see if the sequence number differs from the one expected and nonak is true. If both conditions hold, a NAK is sent. Otherwise, the...

Suppose that the three-statement while loop near the end of protocol 6 were removed from the code. Would this affect the correctness of the protocol or just the performance? Explain your answer.

Asterix Inc. is a mature company whose management team has a poor track record. There is a possibility that there will be a management turnover to replace the poor performing CEO. You have the...

Cushing Corporation is considering the purchase of a new grading machine to replace the existing one. The existing machine was purchased 3 years ago at an installed cost of $20,000; it was being...

In this problem, we consider replacing an existing electrical water heater with an array of solar panels. The net installed investment cost of the panels is $1,680 ($2,100 less a 20% tax credit from...