Free CML (Free) Labs

The lab titles are intentionally randomized to avoid giving away the underlying issue and giving the idea that they have an order of completion . Additionally, many of my troubleshooting labs have show run disabled. While scanning a running configuration for misconfigurations is a valid troubleshooting method, these labs are designed to develop true engineering strength.

Strong engineers know how a network should operate and can pull together information from multiple operational commands to identify the root cause. In these labs, learners must rely on show commands that reveal operational state, interpret the data intelligently, and make clear, informed decisions—just like real-world troubleshooting demands.