UDP-Project-CS330

This project is for CS330 Course at IMAMU

Requirements:

1. Packet Sequencing: Implement a mechanism to sequence your data packets. Include a sequence number in each packet to ensure proper ordering and non-duplicated packets on the receiver's end.

2. Acknowledgments (ACKs): The receiver should send an acknowledgment packet for each received data packet to confirm its arrival.

3. Retransmissions: Implement a timer (1 second) for each packet sent. If an acknowledgment is not received within a certain time frame, the packet should be retransmitted.

4. File Splitting: The application should be capable of breaking large files into smaller chunks (maximum size 500 bytes) for transmission.

5. File Metadata: Before the data transmission begins, exchange metadata like filename and file size between the sender and the receiver.

6. Packet Types: Differentiate between data packets, acknowledgment packets, and handshaking packets.

7. Packet Header: Each packet should contain a header with metadata, including the size of the header, type of packet, sequence number, and size of data.

8. Ports: Use port number 6000 for the sender and 6500 for the receiver.

9. CLI Arguments: The sender should be capable of specifying the receiver's IP address, port number, and the file to be sent through command-line arguments.

10. Statistics: Your code should output statistics like throughput and delay during or after the file transfer.

In addition, you much choose one of the following:

1. Unreliable Channel: Simulate an unreliable channel by introducing packet loss. Packets should be randomly dropped based on given probabilities (p=0.1, 0.3, 0.6).

2. Sliding Window Protocol: Implement a sliding window protocol for flow control with a maximum window size of 8 segments. Hint: you may need to implement a sliding window using Mutli-threading to coordinate activities like sending packets, receiving acknowledgments, and handling timeouts concurrently.