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Using Log Files to Troubleshoot Synchronization

Question

How do I use log files to troubleshoot issues with synchronization?

Answer

The most typical problem with synchronization is in the case of GPS reception. There is a log “GPS Qual” that contains useful data to diagnose these problems. If the GPS Qual log shows the GPS receiver is always tracking at least one satellite, then there is another problem such as the MaxTFOM value. But the easiest way to determine if there is a problem with the TFOM value is a “1PPS Not In Specification” entry in the Events log.

If you would like us to take a look at the logs for you, let us know the software version installed and send us a copy of the log bundle (see the article to verify the version of your unit if necessary):

If your unit is running version 5 or above the logs can be saved to a single bundled file and exported to a networked PC. Log into a web browser session and navigate to Management -> Log Configuration. On the left-side of the browser, click on the “Save and download all logs” button. You can then select where to save the log bundle to. The file will have an extension of .log.

In order to capture the log files in software versions 4.x, log into a web browser session and copy all of the log entries from all of the log tabs from the Tools -> Logs page (such as all of the log entries in the “Event” tab, “Alarms” tab, “Oscillator” tab, etc). Then paste all of the log entries into a common document format such as Microsoft Word.

As an alternative of copy/pasting all of the logs to a Word document, you can also bundle the logs into a single log file then export using an FTP or SCP session. Log into a web browser session and navigate to the Tools ->  Upgrade/Backup page. Click on the “Configuration” tab. Change “Save Log Files” to “Enabled” and then click Submit. This generates a single file bundle of the logs. The file will have an extension of .log and is placed in the “home/spectracom/xfer/log/” directory of the unit. You can FTP/SCP it from the unit (just make sure “FTP Service” is enabled in the Network/General page of the browser, “Services” tab). If you need a free FTP client, we often use CoreFTP.

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