IF U R READY TO DO THIS ASSIGNMENT, I CAN PROVIDE U WITH THAT TO HELP U MORE UNDERSTAND WHAT IS NEEDED. I HAVE TWO SAMPLE CODES WITH ME FOR THE SAME ASSIGNMENT. It is best to accept these values as command line parameters so that it is easy to experiment.ġ) Complete and fully-functional working program(s) in executable form as well as complete source code of all work done.Ģ) READ THE INSTRUCTIONS TO SEE WHAT NEEDS TO BE DONE, HOW THE OUTPUT IS TO BE SHOWED Play around with with varying Pt, Rt and P values and see if the results are as expected. This shows what the sends log would like with a data packet is lost and timer expires. If p : įor example, the sender log might look like the following:ġ9:32:32.845455: Sent_packet seqnum=0 Retransmit Generate a random float point number p, between 0 and 1. **How to drop/ignore packet with probability P ?** Just before the receiver sends an ack (after updating variables): Don't send the ack with probability P = 0.2. As soon as the receives gets a packet (before any update to variables): Ignore the packet with probability P = 0.2. At the receiver, write additional code in two placesġ. We need to simulate losses since our network will almost never lose packet. Sender sends data every Pt = 500ms and always has data to send. You will need to modify the meaning of functions in Fig. We will simulate the physical layer by the transport layer using the programs described in the lectureįor the programs on the data link layer follow the Fig.
The goal is to implement a data transmission programs that involve two layers: Basically, the data link layer of the receiver immediately. In this, the receiver can immediately handle the frame it receives whose processing time is small enough to be considered as negligible. **General rules: source code must be commented and a description how to run the programs must be attached.** The simplest protocol is basically a unidirectional protocol in which data frames only travel in one direction from the sender to the receiver. Implement the simplex protocol for a noisy channel (Fig.
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