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Hierarchy Level


Configure the time in minutes for each port to be up before opening the Ethernet Synchronization Message Channel (ESMC) for messages. When a port’s signal transitions out of the signal fail state, it must be fault-free for the wait-to-restore time before it is again considered by the clock selection process.


When you perform GRES on MX Series routers, you must execute the clear synchronous-ethernet wait-to-restore operational mode command on the new primary Routing Engine to clear the wait-to-restore timer on it. This is because the clear synchronous-ethernet wait-to-restore operational mode command clears the wait-to-restore timer only on the local Routing Engine.



Set the time for the port signal to be up before the port is opened to receive and transmit ESMC messages.

  • Range: 0 through 12 minutes

  • Default: 5 minutes

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 14.2.