Nuttcp
nuttcp is an open-source network performance measurement tool for testing TCP and UDP bandwidth performance. It allows the user to set various parameters like protocol, window size, number of flows, etc. to simulate different real-world conditions.
nuttcp: Open-Source Network Performance Measurement Tool
An open-source network performance measurement tool for testing TCP and UDP bandwidth performance, allowing users to customize parameters like protocol, window size, and number of flows.
What is Nuttcp?
nuttcp is an open source command-line network performance measurement tool used for testing TCP and UDP bandwidth performance. It was originally developed by Samsung and is now maintained on GitHub.
Some key features of nuttcp include:
- Cross-platform support - works on Linux, Windows, macOS, FreeBSD etc.
- Flexibility in tuning various parameters like protocol (TCP/UDP), window size, number of flows, packet size etc. to simulate different real-world conditions.
- Measure bulk data transfer rates and latency.
- Works over high-speed networks with transfer rates up to 100 Gbps.
- Report extensive statistics like transfer rate, packet loss, round trip latency, jitter etc.
- Lightweight and easy to deploy without dependencies.
nuttcp allows network administrators, system testers and developers to thoroughly evaluate network performance under varied realistic loads. The ability to tweak parameters makes it useful for experimenting with and fine-tuning systems to obtain maximum throughput over a network link. The reports can help analyze network bottlenecks and issues.
Nuttcp Features
Features
- Measures TCP and UDP bandwidth performance
- Can simulate real-world network conditions by adjusting parameters like protocol, window size, number of flows, etc.
- Supports both IPv4 and IPv6
- Can generate bidirectional traffic for testing
- Lightweight and portable C program
- Can log bandwidth, loss, and other metrics to file
Pricing
- Open Source
Pros
Free and open source
Lightweight and easy to use
Allows flexible configuration for testing
Good for basic network performance testing
Cons
Limited compared to more full-featured commercial tools
CLI only, no GUI
TCP testing requires both endpoints to run nuttcp
Official Links
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