https://github.com/pirito10/udpfiletransmission-ro-uvigo
Reliable UDP File Transfer Protocol project for the course "Redes de Ordenadores" in the Telecommunications Engineering Degree at the Universidad de Vigo (2020 - 2021)
https://github.com/pirito10/udpfiletransmission-ro-uvigo
arq java
Last synced: 4 months ago
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Reliable UDP File Transfer Protocol project for the course "Redes de Ordenadores" in the Telecommunications Engineering Degree at the Universidad de Vigo (2020 - 2021)
- Host: GitHub
- URL: https://github.com/pirito10/udpfiletransmission-ro-uvigo
- Owner: Pirito10
- License: mit
- Created: 2025-02-09T01:24:37.000Z (4 months ago)
- Default Branch: main
- Last Pushed: 2025-02-09T17:42:15.000Z (4 months ago)
- Last Synced: 2025-02-09T18:33:44.173Z (4 months ago)
- Topics: arq, java
- Language: Java
- Homepage: https://teleco.uvigo.es/es/asignaturas/gett/redes-de-ordenadores-3/
- Size: 15.2 MB
- Stars: 1
- Watchers: 1
- Forks: 0
- Open Issues: 0
-
Metadata Files:
- Readme: README.md
- License: LICENSE
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README
# UDP File Transmission
*UDP File Transmission* is a **Reliable UDP File Transfer Protocol** developed as part of the course "[Redes de Ordenadores](https://secretaria.uvigo.gal/docnet-nuevo/guia_docent/?centre=305&ensenyament=V05G301V01&assignatura=V05G301V01210&any_academic=2020_21)" in the Telecommunications Engineering Degree at the Universidad de Vigo (2020 - 2021).
## About The Project
This project implements a reliable file transfer protocol over UDP, demostrating error handling, packet loss recovery, and retrasmission mechanisms. The system integrates a client-server architecture with an intermediary router that introduces controlled packet loss and delay to simulate real network conditions.
The project features:
- File transmission over UDP with a custom reliability mechanism.
- A client that sends a file to a server.
- A router that simulates network delay and packet loss.
- A server that receives and reconstructs a file.
- Sliding window protocol for efficient and reliable data transfer.
- Performance analysis through recorded transmission timings.
## How To Run
### Compilation
Make sure you have a [Java JDK](https://www.oracle.com/java/technologies/downloads/) installed on your system. Then compile all Java classes and generate the `.class` files with:
```bash
javac -d bin src/*.java
```
This command creates the compiled files inside the `bin/` directory.
### Execution
Once compiled, you can run the system with:
#### Server
```bash
java -cp bin ro2021recv
```
| Option | Description | Example |
|--------|-------------|---------|
| `output_file` | File where received data will be stored | `output.png` |
| `port` | Port where the server listens | `5000` |
##### Example
```bash
java -cp bin ro2021recv output.png 5000
```
#### Router
```bash
./shufflerouter.exe [-d drop_rate] [-m min_delay] [-r rand_delay] [-p port]
```
| Option | Description | Example |
|--------|-------------|---------|
| `-d drop_rate` | Probability to drop packets | `-d 0.1` |
| `-m min_delay` | Minimum transmission delay in milliseconds | `-m 5` |
| `-r rand_delay` | Maximum transmission delay in milliseconds | `-r 15` |
| `-p port` | Port where the router listens | `-p 6000` |
##### Example
```bash
./shufflerouter.exe -d 0.1 -m 5 -r 15 -p 6000
```
#### Client
```bash
java -cp bin ro2021send
```
| Option | Description | Example |
|--------|-------------|---------|
| `input_file` | File to be sent | `test.png` |
| `server_ip` | Server IP address | `127.0.0.1` |
| `server_port` | Port where the server is listening | `5000` |
| `router_ip` | Router IP address | `127.0.0.1` |
| `router_port` | Port where the router is listening | `6000` |
##### Example
```bash
java -cp bin ro2021send test/test.png 127.0.0.1 5000 127.0.0.1 6000
```
## About The Code
Refer to [`Especificaciones.pdf`](docs/Especificaciones.pdf) and [`Implementación.pdf`](docs/Implementación.pdf) for an in-depth explanation of the project, the protocol implementation, how the system works, how to run it, and more.
Refer to [`Resultados.ods`](docs/Resultados.ods) for information on achieved results.