HP VAN SDN Controller Administrator Guide v3

Figure 41 Trace Controls
Starts Trace logging. In the default configuration, the trace stops after ten seconds have
passed. (To change the trace interval, see “Changing the OpenFlow Trace Interval ” (page 48).)
Stops Trace logging (unless already stopped due to configured timeout).
NOTE: Multiple consecutive traces can be held in the Trace log. To add additional trace
results after stopping a trace, just click on the button.
Clears (resets) the current Trace log. If you want to preserve the contents of the Trace log
before clearing it, see “Exporting the OpenFlow Trace Log” (page 45).
NOTE: The number of events that can be held in the Trace Log is limited only by system
memory. For this reason, HP recommends that you export to a remote storage location any
Trace log content you want to retain, and to clear the controller Trace log whenever its content
is not needed on the controller itself.
Displays details of the selected Trace event.
2.10.2 Displaying Event Details
1. Select the event you want to examine.
Figure 42 Selecting an event in the OpenFlow Trace log
2. Click on the symbol to display the event details.
44 SDN Controller Console