Basic Tools

Troubleshooting and network maintenance tools often range in expense from free to tens of thousands of dollars. Similarly, these tools vary in their levels of complexity and usefulness for troubleshooting and maintaining specific issues. You need to select tools that balance your troubleshooting and maintenance needs while meeting your budgetary constraints.

Regardless of budget, all Cisco troubleshooting and network maintenance toolkits will contain the command-line interface (CLI) commands that are executable from a router or switch prompt. In addition, many network devices have a graphical user interface (GUI) to assist network administrators in their configuration and monitoring tasks. External servers (for example, backup servers, ...

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