Check NIC Speed, Duplex & Cable Status in Seconds! (Linux Command Tutorial)

Learn to test network speed with iperf3 on Linux, measuring bandwidth and latency for optimal performance. Enhance network diagnostics.

This blog post will guide you through various methods to check the NIC speed in Linux, including fundamental concepts, usage methods, common practices, and best practices.

This article explores five effective ways to check your NIC speed on Linux, guiding you through various methods such as command-line tools and graphical interfaces.

In this tutorial, we’ll learn how to verify that the NIC has the correct network speed using two different ways: with standard Linux tools, and with the ethtool command.

在 Linux 系统中，检查网络接口（NIC）的速度和状态是网络故障排查或性能优化的常见任务。 本教程将介绍如何使用终端命令快速检查网卡的速度、双工模式和其他相关信息。