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Hierarchy Level

Release Information

Statement introduced before Junos OS Release 7.4.

Statement introduced in Junos OS Release 12.2 for the ACX Series Universal Metro Routers.


Configure the value that the DS0, E1, E3, T1, or T3 interface transmits during idle cycles.


When configuring E1 or T1 interfaces on 10-port Channelized E1/T1 IQE PICs, the idle-cycle-flag statement must be included at the [edit interfaces e1-fpc/pic/port] or [edit interfaces t1-fpc/pic/port] hierarchy level as appropriate.


value—Value to transmit in the idle cycles:

  • flags—Transmit the value 0x7E.

  • ones—Transmit the value 0xFF (all ones).

Default: Flags

Required Privilege Level

interface—To view this statement in the configuration.

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