Help Please

6. Programming Assignment:

Based on the content covered in the class, you are required to implement a simplified

network client-server simulating program. You can conduct the homework by yourself

or work with another student as a group. You are required to set up your system with

computers to emulate the sender, receiver and router, which are connected with TCP

as shown in the following figure.

Figure 1: Network Transmission Model (Topology)

The sender will send Y packets (changing Y from 10; 20; 40; 60; 80; 100) via the router

to the receiver. The receiver will reply with corresponding acknowledge packet as in

the following figure.

_ We apply the Selective Repeat mechanism for sender and receiver. For the window

size, you should use window size equals to 5.

_ The router in the middle will randomly drop a packet and ACK with a probability

(10+X) %, where X is the last digit of the four digit number 9788 and your partners last digit

of the four digit number 5973.

_ We further assume that the router not only randomly drop data packets, but also

acknowledge packets.

Router Sender Receiver Figure 1: Network Transmission Model (Topology)