- If omitted, the trace is written in the `$LTTNG_HOME/lttng-traces`
- directory (`$LTTNG_HOME` defaults to `$HOME`). The file system
- output can be disabled using the option:--no-output option.
+ Using option:--set-url=file://'PATH' is the equivalent of using
+ option:--output='PATH'. The file system output can be disabled using
+ the option:--no-output option.
++
+If none of the options mentioned above are used, then the trace is
+written locally in the `$LTTNG_HOME/lttng-traces` directory
+(`$LTTNG_HOME` defaults to `$HOME`).
+
+Network streaming mode::
+ Traces the local system and sends the trace over the network to
+ a listening relay daemon (see man:lttng-relayd(8)).
+ The option:--set-url, or option:--ctrl-url and option:--data-url
+ options set the trace output destination (see the
+ <<url-format,URL format>> section below).