High-performance UDP traffic generator for Windows with real-time statistics.  
Designed for engineers, testers, and developers who need to measure network performance, latency, jitter, and packet loss at scale.

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## 🚀 Features

- Multi-threaded high-performance UDP sender
- Supports rate control in **Mbps** or **PPS**
- Configurable payload size and pattern generation
- Token bucket shaper for accurate traffic rate
- Packet loss and out of order counter
- Jitter calculation according to RFC3550 and using standar deviation.
- Latency, jitter and packet loss graph
- Works smoothly on **Windows**

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## 🧠 How It Works

The script sends UDP packets containing a sequence number and timestamp header.  
If a responder (loopback or echo server) sends them back, latency and jitter are calculated.  
It uses a token bucket algorithm to regulate bandwidth and achieve consistent traffic rates.

A responder script is provided as well.

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## ⚙️ Usage

### Basic Example

```bash
python3 sender.py 192.168.1.100 --port 9999 --mbps 750 --payload-size 512 --pattern prbs --flows 1 --duration 10

python3 responder.py --host 192.168.1.100 --port 9999

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## ⚙️ Options

--host Destination IP or hostname.
--port: Destination port on the receiver (some receiver dont use it, but the sender still needs it), default=9999.
--local-port: local source port to bind (0 = auto).
--pps: Amount of packets per second to be send.
--mbps: Rate of the transmision.
--payload-size: Payload size of the packet, without the headers.
--pattern: Testing pattern of bits to be send.
--flows: Amount of flows to be created between the sender and receiver.
--sndbuf: Amount of memory in bytes, the operating system reserves for outgoing network data on a socket.
--tos: Type of service.
--duration: sending duration (seconds).
--extra: extra seconds to keep receiver listening after send ends.
--verbose: To print all the logs on the console.