Trace output can be used to check the internal processes in the device during or after configuration. Experienced users can read this output and discover any errors in connection establishment. One particular advantage is: The error may be located in the configuration of your own device or in the peer device.
Note: Trace output has a slight time delay from the actual event, but the order of events is always recorded correctly. This generally does not influence the interpretation of the display, but this should be considered when making precise analyses.