TCP Over UDP

This repository contains how to simulate TCP connection over UDP socket. It consist of simple server and client, server can send file to a or multiple client. There are no non builtin library are used for this implementation.

Members - masuktipi

Name	NIM
Muhammad Garebaldhie ER Rahman	13520029
Rayhan Kinan Muhannad	13520065
Aira Thalca Avila Putra	13520101

Usage

server.py

usage: server.py [-h] [broadcast port] [Path file input]

Server for handling file transfer connection to client

positional arguments:
  [broadcast port]   broadcast port used for all client
  [Path file input]  path to file you want to send

options:
  -h, --help         show this help message and exit

client.py

usage: client.py [-h] [client port] [broadcast port] [path file output]

Client for handling file transfer connection from server

positional arguments:
  [client port]       client port to start the service
  [broadcast port]    broadcast port used for destination address
  [path file output]  output path location

options:
  -h, --help          show this help message and exit

Features implemented

1. Three way handshake
2. Go Back N when network are unreliable
3. Paralelization (server can transfer file to each client paralel)
4. Optimize file read
5. Metadata
6. File will be write in out directory

How to use

1. Run server by inserting the broadcast port and source file instructions in Usage python server.py 5000 ./test/tu.txt
2. If filename aren't exists program will exit
3. Server will ask if client want to use paralellization.
4. Run client by inserting the port, broadcast port and filename see in Usage python client.py 5001 5000 a.txt
5. File will be write in out/a.txt
6. Make sure the port are different for broadcast addr and client addr

References

1. Validate data with CRC
2. Understanding CRC
3. TCP Flags
4. Three way Handshake