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Hierarchy Level


Configure the Ethernet equipment clock (EEC) synchronization networking type.


For SCB, this option is set with the set chassis synchronization network-type (option-1 | option-2) configuration command at the [edit] hierarchy level.


For Junos OS releases 11.2R4 through 13.3R3 for MX240, MX480, and MX960 with SCB, SCBE, and SCBE2; and MX2010 and MX2020 with SCB or SCBE; you must execute the following commands after you change the network option at the [edit chassis synchronization] hierarchy level. This is because the loop bandwidth does not change automatically when you change the network option.


Depending on the configuration of the Synchronization Status Messages (SSM) quality level, the network option functions in the following ways:

  • option-1—Maps to the G.813 option 1 (EEC1).

  • option-2—Maps to the G.812 type IV clock (EEC1).

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 11.2R4.