The following option is used to specify the trace level if the application has been built with trace enabled:
trace_level [general | threading | bic | netlink | ntp | servo | clocks] <number>- The optional parameters enable you to set the trace level for a specific trace category. If no category is given, the trace level for the general category is set.
- The number sets the trace level. By default this is 0, meaning no trace. Setting a higher value makes trace more verbose, up to a maximum value of 6.