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, if the forced reference fails, or if the received QL code is QL-DNU/DUS and QL selection is enabled.

When the debug sync-if-timing force-reference command is run, the current system synchronous timing output is immediately referenced from the specified reference input. The reference must be qualified.

Debug configurations are not saved between reboots.

Use the following syntax to reference the current system synchronous timing output from the specifies reference input.

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

Example

The following example shows the command usage to reference the current system synchronous timing output from the specifies reference input.

debug>sync-if-timing# force-reference