IPS Gateway User’s Guide (5/2002) 3-21IPS Gateway operationYou must be logged on as Trusted User or System Administrator toaccess and use the trace functions. These trace functions are available:• Capture Trace — Used to capture IPDS data in a file as it is beingreceived from the host.• Playback Trace — Used to play back a previously captured trace file.• Debug — Used to enable IPDS diagnostic information. Xeroxrecommends turning this option on when you are experiencingproblems and need to gather information for a customer problem log.NOTE: During a trace capture or playback, the IPDS Setup, OutputSetup, and Media Setup tab options are not accessible and cannot bechanged until the trace capture or playback is stopped.Capturing a traceCapture Trace writes the IPDS data being received from the host to a fileas it is processed by IPS Gateway. The trace file also includes any repliesthat IPS Gateway has sent to the host.If you have an IPDS data stream that experienced a printing problem, usethis option to recreate the problem for further analysis by Xerox personnel.To capture a trace:Step 1. Drain the printer at the host to ensure that the trace includes informationfrom when the printer is first started. Otherwise, the host may downloadinformation to the printer that is not captured.Step 2. Select the Diagnostics tab on the IPS Gateway window.Step 3. In the Directory area, select the /var/db/ipdstraces directory.Step 4. Select an existing file in the Files box or enter a new file name in the TraceFile Selection field at the bottom of the window. If you select an existingfile, the information in that file will be overwritten.Step 5. Once the Trace File Selection field contains the directory path and nameof the trace file, click Capture Trace. The message “Capture Trace”appears in the trace message area on the IPS Gateway window.Step 6. Start the printer at the host.Step 7. Submit the job for which you need to recreate the problem. IPS Gatewaycontinues to capture trace information until you stop the trace.Step 8. Once your job completes, drain the printer at the host.Step 9. Click Tracing OFF on the Diagnostics tab.