Cisco's Troubleshooting Mechanisms

The Cisco IOS offers a great deal of commands to aid in the troubleshooting of network problems. There are basically two types of IOS commands that can be used in troubleshooting problems:

  • Debug set of commands

  • Show set of commands

Specific commands from each of these families are mentioned in each of the remaining chapters of this book. Several commands from each family are introduced and their use explained.

Debug Commands

The Cisco IOS enables the output of an extreme amount of information for almost every option that can be enabled. This type of information is of critical importance when you are trying to figure out why a problem is occurring. Suppose you pinpoint a routing problem as being caused by ...

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