Follow these steps:
NOTE: For better understanding we have not used the sequence number for representing frames instead we have taken the running serial number i.e., 1,2,3,4,5.
1. Firstly, select the first frame, i.e., 1 to be sent to the receiver and now wait to receive the acknowledgment of the 1st frame.
2. After ACK 1 received, select the next frame to be sent.
3. ACK 2 not received because the acknowledgment is lost, retransmits the frame.
4. After ACK 2 received, select the next frame to be sent.
5. After ACK 3 received, select the next frame to be sent.
6. Frame 4 got lost, retransmit the frame.
7. After ACK 4 received, select the next frame to be sent.
8. ACK 5 received, ALL FRAMES SENT!
9. Input the correct total number of frames transmitted and click the Submit button.