Help us improve your experience.

Let us know what you think.

Do you have time for a two-minute survey?


interfaces (Chassis Synchronization Source)


Hierarchy Level


Configure an interface with an upstream clock source to be considered one of the candidate sources for the chassis synchronization by the clock source selection algorithm.



Consider the specified interface as a candidate source.

The remaining statements are explained separately. See CLI Explorer.

Additional Information

A maximum of 8 clock sources can be configured.

Required Privilege Level

interface—To view this statement in the configuration.

interface-control—To add this statement to the configuration.

Release Information

Statement introduced in Junos OS Release 12.2.