What is the recommended troubleshooting approach according to network standards?

The recommended troubleshooting approach according to network standards follows the method of moving from the bottom to the top of the OSI Model. This approach is effective because it begins with the physical layer, where most issues are often found, especially in environments dealing with hardware connections and physical media. By starting at the bottom, you can ensure that the fundamental building blocks of the network are functioning correctly before addressing higher layers that depend on this foundational functionality.

When troubleshooting, it's important to verify the physical connections, cable integrity, and network device status before testing protocols and applications that operate at higher levels in the OSI model. As you move up through the layers, you handle progressively more complex issues, typically involving interactions between protocols and services. This systematic approach minimizes the chances of overlooking a fundamental issue that could impact the performance and reliability of the entire network.