Compare a network config to a baseline or another config

Sometimes device configurations are changed without notice or authorization. These out-of-process changes can cause network problems. When you use NCM to compare device configurations against a baseline or a previous version of the configuration, you can easily identify where specific changes were made. This allows you to quickly reverse any unwanted changes.

To compare configurations to a baseline or another config, see the following topics:

• When you establish baselines as the approved configuration for a device, NCM automatically compares the device configuration to the baseline and reports any differences.
• Use NCM to find and review differences between a device's config and the baseline.
• You can also compare two config files to each other. For example, you can compare different versions of the same config, or configs on different devices.
• To avoid flagging insignificant differences, such as the hostname, exclude expected differences from comparison.