Help us improve your experience.

Let us know what you think.

Do you have time for a two-minute survey?


synchronize (Commit configuration)



Hierarchy Level

Release Information

Statement introduced in Junos OS Release 7.4.

Statement introduced in Junos OS Release 9.0 for EX Series switches.


For devices with multiple Routing Engines only. Configure a commit command to automatically result in a commit synchronize action between dual Routing Engines within the same chassis. The Routing Engine on which you execute the commit command (the requesting Routing Engine) copies and loads its candidate configuration to the other (the responding) Routing Engines. All Routing Engines then perform a syntax check on the candidate configuration file being committed. If no errors are found, the configuration is activated and becomes the current operational configuration on all Routing Engines.

Starting with Junos OS Release 9.3, accounting of events and operations on a backup Routing Engine is not supported on accounting servers such as TACACS+ or RADIUS. Logging of accounting events is supported only for events and operations on a master Routing Engine.

Required Privilege Level

system—To view this statement in the configuration.

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