Forcing a Specific Reference

You can force the system synchronous timing output to use a specific reference.

Note:

The debug sync-if-timing force-reference command should only be used to test and debug problems. After the system timing reference input has been forced, it does not revert to another reference unless explicitly reconfigured.

When the command is executed, the current system synchronous timing output is immediately referenced from the specified reference input. If the specified input is not available (shut down), or in a disqualified state, the timing output enters a holdover state based on the previous input reference.

Debug configurations are not saved between reboots.

CLI Syntax:

debug>sync-if-timing
    force-reference {external | ref1 | ref2}

Example:

debug>sync-if-timing# force-reference