Lanbench Jun 2026

It’s a favorite in the networking community for "fucking up" (stress-testing) connections to see if SFP+ modules or line cards fail under heavy load. How to Run Your First Test

For alternative network testing tools with more modern interfaces or different protocols (like UDP), users often consider LANBench

Better for testing file transfer speeds to shared folders or hard drives. It’s a favorite in the networking community for

If a file transfer across the office is slow, LANBench can determine if the issue is the network or the storage medium (hard drives). If LANBench shows high throughput but file copying is slow, the bottleneck is likely disk I/O, not the network. If LANBench shows high throughput but file copying

One computer acts as the server, and another as the client. The server listens on a specified port, while the client initiates the connection and starts the test.