Reliable Data Transfer Protocol (RDTP)

A reliable protocol built over UDP

Table of Contents

• Table of Contents
• About The Project
• Getting Started
  • Dependencies
  • To Run
• Usage
• Project Layout
• License
• Project Contributors

About The Project

This repo contains the specification and code for RDTP Protocol. This protocol is a part of our Networks course assignment in building a reliable protocol over UDP.

We have selected a file transfer application which uses the built specification's API to transfer files. Performance analysis is performed usig netem tool

RDTP specification can be found here and performance analysis can be found here

Getting Started

To get a local copy up and running follow these simple steps.
This protocol is implemented in python ver >= 3.7.

Dependencies

There are no external dependencies/modules used. The following core python modules are used:

• sockets
• math
• random

To Run

1. Clone the Reliable-UDP

git clone https://github.com/RikilG/Reliable-UDP.git
cd Reliable-UDP

2. To run the file transfer application

# first run the receiver which listens for incomming connections
python fileReceiver.py -o <output filepath>

# run the sender which sends file to receiver at target IP address
# if no target ip is given, it defaults to localhost(127.0.0.1)
python fileSender.py -i <input filepath> -ip <ip_address>

Usage

The API provided is explained in the specification. It's usage example is the file transfer application.
RDTPConnection package provides 2 modules RDTPSender and RDTPReceiver which can be used by you application to transfer data.

Project Layout

Repo root directory
  ├── Images # Graphs produced by performance analysis
  │   ├── Corrupt_Throughput.png
  │   ├── Corrupt_Time.png
  │   ├── Delay_Throughput.png
  │   ├── Delay_Time.png
  │   ├── Duplication_Throughput.png
  │   ├── Duplication_Time.png
  │   ├── Jitter_Throughput.png
  │   ├── Jitter_Time.png
  │   ├── Loss_Throughput.png
  │   ├── Loss_Time.png
  │   ├── Reorder_Throughput.png
  │   └── Reorder_Time.png
  ├── other # Other stuff which helped in building the protocol
  │   ├── ...
  │   └── UDPsender.py
  ├── RDTPConnection
  │   ├── __init__.py
  │   ├── Packet.py
  │   ├── RDTPReceiver.py
  │   ├── RDTPSender.py
  │   ├── SocketCore.py
  │   ├── SRSocket.py
  │   └── SWSocket.py
  ├── analysis.py
  ├── assignment-3.pdf
  ├── fileReceiver.py
  ├── fileSender.py
  ├── LICENSE
  ├── RDTP - Performance Analysis.pdf
  ├── RDTP Specification.pdf
  ├── README.md
  └── Specification.md

License

Distributed under the MIT License. See LICENSE for more information.

Project Contributors

• Rikil Gajarla - 2017A7PS0202H
• L Srihari - 2017A7PS1670H
• Koushik Perika - 2017A7PS0207H
• Sayanti Ghosh - 2017A7PS0261H
• Poosarala Divakar - 2017A7PS0225H

Project Link: https://github.com/RikilG/Reliable-UDP.